(mbtoh): Replace input parameter to u-media-dual-expand and u-media-dual-btoh

[pf3gnuchains/pf3gnuchains4x.git] / cgen / ChangeLog

2003-08-21  Nick Clifton  <nickc@redhat.com>

        * cpu/frv.cpu (mbtoh): Replace input parameter to
        u-media-dual-expand and u-media-dual-btoh with output parameter.
        (cmbtoh): Add profiling hack.

2003-08-19  Michael Snyder  <msnyder@redhat.com>

        * cpu/frv.cpu: Fix typo, Frintkeven -> FRintkeven

2003-08-07  Michael Meissner  <gnu@the-meissners.org>

        * opc-opinst.scm (-gen-operand-instance-table): Initialize all of
        the elements for the END record of CGEN_OPINST, silencing warnings.

2003-07-15  Doug Evans  <dje@sebabeach.org>

        Add guile 1.6.4 support.
        - empty list must be quoted
        - string functions have stricter type checking
        - eval now takes a second argument
        - symbol-bound? is deprecated
        * attr.scm (-attr-parse): Use stringsym-append to build errtxt.
        (bitset-attr->list): Ensure arg to string-cut is a string.
        (attr-parse): Ensure args to string-ref and string-drop1 are strings.
        (<enum-attribute>,gen-value-for-defn): Fetch string name of self.
        * cos.scm (-class-list): Must quote empty list.
        (-class-parent-classes,-class-compute-class-desc): Ditto.
        (class-make,make,object-reset!): Ditto.
        (method-make-make!): Call eval1 instead of eval.
        (method-make-forward!,method-make-virtual-forward!): Ditto.
        * decode.scm (subdtable-add): Use stringsym-append instead of
        string-append.
        (-gen-exprtable-name): Fetch string name of exprtable-entry-insn.
        (-build-decode-table-entry): Fetch string name of insn.
        * desc-cpu.scm (-gen-isa-table-defns): Fetch string name of isa.
        (-gen-mach-table-defns): Ditto for mach.
        (gen-ifld-defns): Ditto for ifld.
        (gen-hw-table-defns): Ditto for hw.
        (gen-operand-table): Ditto for op.
        (gen-insn-table-entry): Ditto for insn.
        * desc.scm (gen-attr-table-defn): Ditto for attr.
        (<keyword>,gen-defn): Don't pass symbols to string-append.
        * enum.scm (parse-enum-vals): Use symbolstr-append instead of
        symbol-append.
        (enum-vals-upcase): Use symbol-upcase to build result.
        (-enum-parse): Use stringsym-append to build errtxt.
        * fixup.scm (*guile-major-version*,*guile-minor-version*): New globals.
        (eval1): New function.
        (symbol-bound?): Provide own version if >= guile 1.6.
        * hardware.scm (define-keyword): Use string-append instead of
        symbol-append.
        * html.scm (gen-html-header,gen-table-of-contents,gen-arch-intro,
        cgen.html,cgen-insn.html): Convert current-arch-name to a string
        before using.
        (gen-list-entry): Handle either symbol or string `name' arg.
        (gen-obj-doc-header): Fetch string name of `o' arg.
        (define-cpu-intro): Ditto for cpu.
        (gen-mach-intro): Ditto for mach.
        (gen-model-intro): Ditto for model.
        (gen-isa-intro): Ditto for isa.
        (gen-machine-doc-1): Ditto for isa.
        (gen-reg-doc-1): Convert mach to string first.
        (gen-insn-doc-1): Ditto.  Convert model/unit names to strings first.
        (gen-insn-doc-list): Fetch string name of mach.  Convert insn name
        to string first.
        (gen-insn-categories): Fetch string name of mach.  Convert
        enum-val-name to string first.
        (gen-insn-docs): Fetch string name of mach.
        * ifield.scm (ifld-ilk): Result is a string.
        * iformat.scm (-ifmt-search-key): Convert attr value to string first.
        Fetch string name of ifld.
        (-sfmt-search-key): Similarily for ifld and op.
        * insn.scm (syntax-make): Fetch string name of syntax element.
        * mach.scm (-cpu-parse): Use stringsym-append to build errtxt.
        * minsn.scm (minsn-make-alias): Fetch string name of minsn.
        * mode.scm (mode:c-type): Result is a string.
        (mode:enum): Fetch string name of mode.
        (-mode-parse): Use stringsym-append to build errtxt.
        * model.scm (model:enum): Fetch string name of model.
        (-model-parse): Use stringsym-append to build errtxt.
        (parse-insn-timing): Must quote empty list.
        * opc-itab.scm (-gen-minsn-table-entry): Fetch string name of minsn.
        (-gen-minsn-opcode-entry): Ditto.
        * opcodes.scm (<operand>,gen-function-name): `what' arg is a symbol,
        convert to string.
        (read-cpu.opc): Convert current-arch-name to a string before using.
        * operand.scm (<operand>,gen-pretty-name): Ensure `name' is a string.
        (<derived-operand>): Must quote empty list.
        (op-sort): Simplify, call alpha-sort-obj-list to do sort.
        * pgmr-tools.scm (pgmr-pretty-print-insn-value): Fetch string name
        of ifld.
        * pmacros.scm (-pmacro-build-lambda): Use eval1 instead of eval.
        (-pmacro-sym): Must convert symbols to strings before passing to
        string-append.
        (-pmacro-str): Ditto.
        (pmacros-init!): Use eval1 instead of eval.
        * read.scm (keep-mach-atlist?): Simplify, use bitset-attr->list.
        (keep-isa-atlist?): Ditto.
        (cmd-if): Use eval1 instead of eval.
        * rtl-c.scm (<c-expr>,get-name): Fetch string name of self.
        (-rtl-c-get): Fetch string name of src.
        (s-unop): Ditto for mode.
        (s-binop,s-binop-with-bit,s-shop,s-convop,s-cmpop): Ditto.
        (-gen-par-temp-defns,subword): Ditto.
        (join): Use stringsym-append instead of string-append.
        * rtl-traverse.scm (rtx-option?): Convert option to string first.
        (rtx-traverse-debug): Fetch string name of rtx-obj.
        * rtl.scm (def-rtx-node): Use eval1 instead of eval.
        (def-rtx-syntax-node,def-rtx-operand-node,def-rtx-macro-node): Ditto.
        (rtx-pretty-name): Result is a string.
        (-rtx-hw-name): Use symbolstr-append instead of symbol-append.
        * semantics.scm (semantic-compile): Simplify, use alpha-sort-obj-list.
        * sid-cpu.scm (cgen-write.cxx): Convert current-arch-name to a string
        before using.
        (-gen-sfrag-case): Fetch string name of user.
        * sid-model.scm (unit:enum): Fetch string name of unit.
        * sid.scm (<hw-memory>,cxmake-get): Fetch string name of mode.
        (<hw-memory>,gen-set-quiet): Ditto.
        (gen-mode-defs): Ditto.
        (sim-finish!): Convert current-arch-name to a string before using.
        * sim-cpu.scm (-gen-scache-semantic-fn): Fetch string name of insn.
        (-gen-no-scache-semantic-fn): Ditto.
        (cgen-defs.h): Fetch string name of isa.
        (cgen-read.c): Convert current-arch-name to a string before using.
        (cgen-write.c): Ditto.
        * sim-model.scm (unit:enum): Fetch string name of unit.
        (gen-model-fn-decls): Use stringsym-append instead of string-append.
        (-gen-model-timing-table): Fetch string name of model.
        (-gen-mach-model-table): Ditto.
        (-gen-mach-defns): Fetch string name of mach.
        * sim.scm (gen-reg-access-defn): Fetch string name of hw.
        (<hw-memory>,cxmake-get): Fetch string name of mode.
        (<hw-memory>,gen-set-quiet): Ditto.
        (gen-mode-defs): Ditto.
        (sim-finish!): Must quote empty list.
        * utils-cgen.scm (<ident>): Must quote empty list.
        (obj:str-name): New fn.
        (parse-comment): Result is a string.
        (parse-symbol): Result is a symbol.
        (parse-string): Result is a string.
        (keyword-list?): Convert arg to string before calling string-ref.
        (keyword-list->arg-list): Ditto.
        (gen-attr-name): Convert attr-name to string first.
        (alpha-sort-obj-list): Use symbol<? instead of string<?.
        * utils-gen.scm (attr-gen-decl): Fetch string name of attr.
        (gen-define-ifmt-ifields): Ditto for fld.
        * utils.scm (gen-c-symbol): Ensure str is a string before calling
        map-over-string.
        (gen-file-name): Ditto.
        (symbol-downcase,symbol-upcase,symbol<?): New fns.
        (stringsym-append,symbolstr-append,->string,->symbol): New fns.
        (reduce): Call eval1 instead of eval.
        * cpu/m32r.cpu (addi): Don't use `#.'.

        * gen-all-sim: Fix some typos.

2003-07-08  Doug Evans  <dje@sebabeach.org>

        * gen-all-doc: Ensure run from cgen src dir.
        * gen-all-opcodes: Build in ./tmp-opcodes.  Don't delete dir when done.
        * gen-all-sid: Similarily, in ./tmp-sid.
        * gen-all-sim: Similarily, in ./tmp-sim.

2003-06-20  Doug Evans  <dje@sebabeach.org>

        * gen-all-sim: Add fr30,sh64 support.  Only generate m32r by default.

2003-06-19  Doug Evans  <dje@sebabeach.org>

        * mach.scm (-ifld-already-defined?): New proc.
        (current-ifld-add!): Use it.
        (-op-already-defined?): New proc.
        (current-op-add!): Use it.
        (-insn-already-defined?): New proc.
        (current-insn-add!): Use it.
        (-minsn-already-defined?): New proc.
        (current-minsn-add!): Use it.
        (obj-isa-list): New proc.
        (isa-supports?): Use it.

2003-06-10  Doug Evans  <dje@sebabeach.org>

        * insn.scm (insn-builtin!): RELAX renamed to RELAXABLE.
        * cpu/m32r.cpu (all insns): Ditto.

        * mach.scm (current-*-add!): Disallow redefinition.  Make result
        "unspecified".

        * gen-all-doc: Split arm and frv docs up a bit.

        * cpu/arm.cpu: Add IDOC attribute.
        * cpu/frv.cpu: Ditto.
        * cpu/i960.cpu: Ditto.
        * cpu/openrisc.cpu: Ditto.
        * cpu/xstormy16.cpu: Ditto.
        * cpu/m32r.cpu: Ditto.
        (all insns): Explicitly specify IDOC attribute.

        * Makefile.am (MACH,ISAS,INSN_FILE_NAME): New vars.
        (desc,opcodes,sim-arch,sim-cpu,gas-test,sim-test): Use MACH,ISAS.
        (html): Use MACH,ISAS,INSN_FILE_NAME.  Generate insn.html separately.
        * Makefile.in: Regenerate.
        * attr.scm (<integer-attribute>:parse-value-def): Implement.
        (-attr-read): Defer computing default value until we know the type.
        (attr-has-attr?): Delete, move contents to <attr-list>:has-attr?.
        (<attr-list>:attr-present?): New method.
        (atlist-attr-present?,obj-attr-present?): New fns.
        (obj-has-attr-value?,obj-has-attr-value-no-default?): New fns.
        (attr-builtin!): New insn attr IDOC.
        * cgen-doc.scm (doc-arguments): New args -I,-N.
        * enum.scm (parse-enum-vals): New arg errtxt, all callers updated.
        Support comment as fourth element of enum value.
        (enum-val-name,enum-val-value,enum-val-attrs,enum-val-comment): New fns.
        * html.scm (gen-html-header): New arg kind, all callers updated.
        (gen-table-of-contents): New arg insn-file, all callers updated.
        (gen-list-entry,gen-doc-header): New fn.
        (get-operands): Delete.
        (gen-iformat-table): Rewrite.
        (gen-insn-doc-1): Print constant-folded and trimmed semantics.
        (gen-insn-doc-list): New args name, comment, insns.  All callers updated.
        (get-insn-properties,guess-insn-idoc-attr!): New fn.
        (insn-sets-pc?,insn-refs-mem?,insn-uses-fpu?): New fns.
        (get-insns-for-category,gen-categories-insn-lists): New fns.
        (gen-insn-docs): Simplify each insn's semantics first.
        Print insn tables sorted by IDOC categories.
        (*insn-html-file-name*): New global.
        (cgen-insn.html): New fn.
        (cgen-all): Update.
        * insn.scm (<insn>): Create a setter for the `tmp' member.
        * semantics.scm (insn-build-known-values): Renamed from
        -build-known-values.  All callers updated.

        * rtl.scm: Move traveral/evaluation support to ...
        * rtl-traverse.scm: New file.
        * read.scm: Maybe-load rtl-traverse.scm.

        * rtl.scm (-rtx-valid-types): Add SETRTX.

        * rtx-funcs.scm (nop,parallel): Fix mode.

        * utils.scm (eqv-lookup-index): New fn.
        (assq-lookup-index): Renamed from lookup-index.  All callers updated.

        * dev.scm (load-doc): Set APPLICATION.

2003-06-10  Dave Brolley  <brolley@redhat.com>

        * sid-cpu.scm: Generate #include of config.h into @prefix@-sem.cxx.
        * sid-decode.scm: Generate #include of config.h into
        @prefix@-decode.cxx.
        * sid-model.scm: Generate #include of config.h into @prefix@-model.cxx.

2003-06-07  Doug Evans  <dje@sebabeach.org>

        * gen-all-sid: New file.
        * gen-all-opcodes: New file.

2003-06-05  Nick Clifton  <nickc@redhat.com>

        * cpu/frv.cpu (FRintieven): New operand.  An even-numbered only
        version of the FRinti operand.
        (FRintjeven): Likewise for FRintj.
        (FRintkeven): Likewise for FRintk.
        (mdcutssi, media-dual-word-rotate-r-r, mqsaths,
        media-quad-arith-sat-semantics, media-quad-arith-sat,
        conditional-media-quad-arith-sat, mdunpackh,
        media-quad-multiply-semantics, media-quad-multiply,
        conditional-media-quad-multiply, media-quad-complex-i,
        media-quad-multiply-acc-semantics, media-quad-multiply-acc,
        conditional-media-quad-multiply-acc, munpackh,
        media-quad-multiply-cross-acc-semantics, mdpackh,
        media-quad-multiply-cross-acc, mbtoh-semantics,
        media-quad-cross-multiply-cross-acc-semantics,
        media-quad-cross-multiply-cross-acc, mbtoh, mhtob-semantics,
        media-quad-cross-multiply-acc-semantics, cmbtoh,
        media-quad-cross-multiply-acc, media-quad-complex, mhtob,
        media-expand-halfword-to-double-semantics, mexpdhd, cmexpdhd,
        cmhtob): Use new operands.
        * cpu/frv.opc (CGEN_VERBOSE_ASSEMBLER_ERRORS): Define.
        (parse_even_register): New function.

2003-06-04  Doug Evans  <dje@sebabeach.org>

        Better handling of 64 bit and mixed 32/64 bit architectures.
        * hardware.scm (hw-update-word-modes!): New fn.
        * mach.scm (define-cpu)): Call mode-set-word-modes!,
        hw-update-word-modes!.
        (state-word-bitsize): Replace FIXME with requested check.
        (arch-analyze-insns!): Call mode-ensure-word-sizes-defined.
        * mode.scm (mode-find): Ignore INT,UINT.
        (-mode-word-sizes-kind): New global.
        (mode-set-word-modes!,mode-set-identical-word-bitsizes!,
        mode-set-biggest-word-bitsizes!,mode-ensure-word-sizes-defined): New fns.
        (mode-init!): Initialize -mode-word-sizes-kind.  Move initialization
        of mode-list to ...
        (mode-builtin!): ... here.  Initialize WI/UWI/AI/IAI to something
        unusable, correct values set later.
        (mode-finish!): Remove cruft.
        * html.scm (doc-init!): Call mode-set-biggest-word-bitsizes!.
        * opcodes.scm (opcodes-init!): Ditto.
        * rtx-funcs.scm (annul): Fix mode of pc.
        * cpu/ia64.cpu: Remove cruft that sets word modes.
        * cpu/xstormy16.cpu (define-cpu): Set word-bitsize.

2003-06-03  Nick Clifton  <nickc@redhat.com>

        * cpu/frv.cpu (media-dual-word-rotate-r-r): Use a signed 6-bit
        immediate value not unsigned.

2003-05-21  J"orn Rennecke <joern.rennecke@superh.com>

        * cpu/sh.cpu: Amend comments to refer to SuperH.
        * cpu/sh64-compact.cpu: Change comment to refer to SuperH.
        * cpu/sh64-media.cpu: Likewise.
        (Saturation): Update manual reference.

2003-05-15  Doug Evans  <dje@sebabeach.org>

        * Makefile.am (srcroot): New var.
        (html): New rule.
        * Makefile.in: Regenerate.
        * cgen-doc.scm: New file.
        * html.scm: New file.
        * gen-all-doc: New file.
        * dev.scm (cload): Handle DOC application.
        (load-doc): New fn.
        * machs.scm (machs-for-cpu): New fn.
        * model.scm (models-for-cpu): New fn.
        * utils.scm (gen-c-copyright): Renamed from gen-copyright.
        All uses updated.
        (iota): Rewrite to be identical to pmacro version.  All uses updated.
        * utils-cgen.scm (alpha-sort-obj-list): New fn.

        * utils-sim.scm (-gen-decoder-switch): Back out patch of 2003-01-09.
        (-gen-decode-bits): Instead put in better fix here.

        * cpu/i960.cpu (index): Rename to indx.  All uses updated.

2003-05-01  DJ Delorie  <dj@redhat.com>

        * cpu/xstormy16.cpu (alignfix-mem): Correct logic for unaligned
        word accesses.
        (set-alignfix-mem): Likewise.

2003-04-16  Dave Brolley  <brolley@redhat.com>

        * doc/rtl.texi (Iiming): Correct example to use 'model-name'.
        * utils.scm (copyright-fsf): Update generate copyright years.
        (copyright-cygnus): Ditto.
        * sid.scm (-op-gen-set-trace): Generate code to fill in bitmask of modified
        operands.
        (-gen-arch-model-decls): Don't generate unit enum declaration or MAX_UNITS
        here.
        (<operand>'gen-profile-code): New parameter 'when'.
        (<iunit>'gen-profile-code): Ditto.
        (<insn>'gen-profile-code): Ditto.
        (<unit>'gen-profile-code): Ditto. Only generate 'referenced' and
        'insn_reference' for the 'after' function.
        * model.scm (unit:enum): Moved to sim-model.scm.
        * sim-model.scm (unit:enum): Moved from model.scm.
        * sid-decode.scm (-gen-scache-decls): Generate the 'written' field.
        * cgen-sid.scm (sim-arguments): Document the generation of model.h.
        * sid-model.scm (unit:enum): New version for sid.
        (gen-model-class-name): New function.
        (gen-model-unit-fn-decl): New function.
        (gen-model-fn-decls): Call gen-model-unit-fn-decl.
        (gen-model-unit-fn-name): New parameter 'when'.
        (-gen-model-insn-fn-name): Ditto.
        (-gen-model-insn-qualified-fn-name): New function.
        (-gen-model-insn-fn-decl): New function.
        (-gen-model-insn-fn-decls): New function.
        (-gen-model-insn-fn): New parameter 'when'. Call
        -gen-model-insn-qualified-fn-name.
        (-gen-model-insn-fns): Generate the constructor for the model. Generate
        functions for modelling insn before and after execution.
        (-gen-model-class-decls): New function.
        (" (gen-model-class-name model) "): New function.
        (gen-model-classes): New function.
        (-gen-insn-timing): Generate functions for modelling insn before and after
        execution.
        (-gen-insn-unit-timing): Generate class-qualified names.
        (-gen-model-timing-table): Ditto.
        (cgen-model.cxx): Generate #include for @cpu@.h. Omit generation of code
        not needed (yet) by sid.
        (cgen-model.h): New function.

2003-04-15  Rohit Kumar Srivastava <rohits@kpitcummins.com>

        * cpu/sh.cpu: Replace occurrances of 'Hitachi' with 'Renesas'.
        * cpu/sh64-compact.cpu: Likewise.
        * cpu/sh64-media.cpu: Likewise.

2003-03-21  DJ Delorie  <dj@redhat.com>

        * cpu/xstormy16.cpu (basic-psw): New argument ws (wordsize),
        which indicates if the sign flag is set from bit 15 or 7.
        Adjust all callers.
        (set-psw): New argument ws, propogate it.
        (set-psw-nowrite): Likewise.
        (set-mem-psw): Likewise.
        (set-psw-carry): Likewise.  Use temporaries to prevent
        prematurely overwriting needed inputs.
        (set-psw-rrotate17): Fix logic.
        (shrgrgr): Preserve carry for zero-bit shifts.
        (shrgrimm): Likewise.
        (shlgrgr): Likewise.
        (shlgrimm): Likewise.
        (asrgrgr): Likewise.
        (asrgrimm): Likewise.
        (reset): New.

2003-03-12  Frank Ch. Eigler  <fche@redhat.com>

        * sid.scm: Set APPLICATION to SID-SIMULATOR.

2002-03-05  DJ Delorie  <dj@redhat.com>

        * cpu/xstormy16.cpu (set-psw-add): Use temporaries to prevent
        prematurely overwriting needed inputs.
        (set-psw-sub): Likewise.

Fri Feb 21 19:48:19 2003  J"orn Rennecke <joern.rennecke@superh.com>

        * cpu/sh64-media.cpu (make-mextr): Fix setting of count.

2003-02-18  DJ Delorie  <dj@redhat.com>

        * xstormy16.cpu (set-mem-alignfix-psw): Remove.
        (movlmemimm): Just mask the address.
        (movhmemimm): Likewise.
        (movlmemgr): Likewise.
        (movhmemgr): Likewise.
        (set-psw): Always set the psw last.
        (set-psw-carry): Likewise.
        (set-psw-add): Likewise.
        (set-psw-sub): Likewise.

        * xstormy16.cpu (set-psw-rrotate17): New.  Choose the correct set
        of 16 patterns from the set-psw-rotate17 function.
        (movgrigr, movgripostincgr, movgripredecgr, movgriigr,
        movgriipostincgr, movgriipredecgr): Set psw correctly.
        (movfgrigr, movfgripostincgr, movfgripredecgr, movfgriigr,
        movfgriipostincgr, movfgriipredecgr): Fix semantics.
        (rrcgrgr, rrcgrimm4): Use new set-psw-rrotate17 function.

2003-02-11  Dave Brolley  <brolley@redhat.com>

        * desc-cpu.scm (gen-ifld-defns): Add all ifields to the
        @arch@_cgen-ifld_table.
        (gen-maybe-multi-ifld): Use the ifield enumerators to index the
        @arch@_cgen-ifld_table.

2003-02-03  Frank Ch. Eigler  <fche@redhat.com>

        * sid-cpu.scm (-gen-sfrag-engine-fn): Generate more hygienic C++.

2003-01-09  Graydon Hoare  <graydon@redhat.com>

        * utils-sim.scm (-gen-decoder-switch): Fix edge condition for
        empty ISAs.

2003-01-07  Graydon Hoare  <graydon@redhat.com>

        * utils-gen.scm (attr-int-gen-defn): Define.

2002-12-21  Doug Evans  <dje@sebabeach.org>

        * ifield.scm (-ifield-parse): Rewrite <bitrange> computation.
        (-get-ifld-word-offset,-get-ifld-word-length): New fns.

        * dev.scm (cload): Update location of .cpu files.

2002-12-19  Doug Evans  <dje@sebabeach.org>

        * utils-sim.scm (gen-profile-sym): New fn.
        (<operand>,sbuf-profile-sym): New method.
        (<operand>,sbuf-profile-elm): Use it.
        * sim.scm (<operand>,gen-record-profile): Use sbuf-profile-sym instead
        of hardcoding symbol name.
        (<operand>,gen-profile-code): Ditto.
        (<unit>,gen-profile-code): Use gen-profile-sym instead of hardcoding
        symbol name.

        * mode.scm (mode-sem-mode): New fn.
        * operand.scm (op:new-mode): Update. mode-name.
        (op-natural-mode?) New fn.
        * rtl.scm (hw): Set hw-name,mode-name.

        Back out sim*.scm changes of 2001-04-02  Ben Elliston  <bje@redhat.com>
        Instead do:
        * sim-decode.scm (-gen-decode-insn-globals): Use @PREFIX@_INSN__MAX
        as size of IDESC-TABLE-VAR.
        (@prefix@_init_idesc_table): Ditto.
        * sim-model.scm (-gen-mach-defns): Ditto.
        * sim.scm (gen-cpu-insn-enum-decl): Rename last elm from max to -max.

        * utils-sim.scm (-gen-decode-insn-entry): Fix some spacing in output.

        * insn.scm (-parse-insn-format-symbol): Improve error message.
        (-parse-insn-format): Ditto.

        * gen-all-sim: New script.

2002-12-16  DJ Delorie  <dj@delorie.com>

        * cpu/xstormy16.opc (parse_immediate16): Add prototype.

2002-12-16  Andrew MacLeod  <amacleod@redhat.com>

        * cpu/xstormy16.cpu (imm16): Call handler immediate16.
        * cpu/xstormy16.opc (parse_small_immediate): Return on '@'.
        (parse_immediate16): Handle immediate16 values, which now include
        @hi(label) and @lo(label)

2002-12-03  Alan Modra  <amodra@bigpond.net.au>

        * desc-cpu.scm (gen-maybe-multi-ifld): Remove superfluous parens.
        Add braces and cast for union field.
        (gen-multi-ifield-nodes): Add braces and cast for union field.
        (cgen_operand_table): Similarly fix sentinel.
        (cgen_cpu_close): Constify "insns".  Formatting.
        (cgen-desc.c): Include xregex.h.
        * cpu/ip2k.opc (ip2k_cgen_insn_supported): Move to opc.c section.
        Prototype.
        <opc.c>: Include safe-ctype.h.
        (ip2k_asm_hash): Use ISSPACE and TOLOWER.
        (PARSE_FUNC_DECL): Declare.  Use to prototype parse_fr, parse_addr16,
        parse_addr16_p, parse_addr16_cjp, parse_lit8 and parse_bit3.
        (parse_fr): Constify "old_strp".  Correct type of "tempvalue".
        Don't test it for >= 0.  Use ISSPACE rather than isspace.  Formatting.
        (parse_addr16): Correct type of "value".  Formatting.
        (parse_addr16_p): Likewise.
        (parse_addr16_cjp): Likewise.
        (parse_lit8): Likewise.
        (parse_bit3): Formatting.
        (PRINT_FUNC_DECL): Define.  Use to prototype print_fr, print_dollarhex,
        print_dollarhex8, print_dollarhex16, print_dollarhex_addr16h,
        print_dollarhex_addr16l, print_dollarhex_p, print_dollarhex_cj and
        print_decimal.
        (print_fr): Add ATTRIBUTE_UNUSED on unused args.  Formatting.
        (print_dollarhex): Add ATTRIBUTE_UNUSED on unused args.
        (print_dollarhex8): Likewise.
        (print_dollarhex16): Likewise.
        (print_dollarhex_addr16h): Likewise.
        (print_dollarhex_addr16l): Likewise.
        (print_dollarhex_p): Likewise.
        (print_dollarhex_cj): Likewise.
        (print_decimal): Likewise.
        * cpu/xstormy16.opc (parse_mem8): Use ISALNUM rather than isalnum.

2002-11-30  Hans-Peter Nilsson  <hp@axis.com>

        * doc/rtl.texi (Model variants): Mention current limitations for
        unit inputs and outputs.
        (Hardware elements) <attribute PROFILE>: Be slightly more
        verbose.
        (Instructions) <timing>: input/output overrides have a direction
        operand.

2002-11-25  DJ Delorie  <dj@redhat.com>

        * xstormy16.cpu (sdiv, divlh, sdivlh): Fix sdivlh/divlh encodings.

2002-11-21  Jeff Johnston  <jjohnstn@redhat.com>

        * cpu/iq10.cpu: New file.
        * cpu/iq2000.cpu: Likewise.
        * cpu/iq2000.opc: Likewise.
        * cpu/iq2000m.cpu: Likewise.

2002-11-19  DJ Delorie  <dj@redhat.com>

        * cpu/xstormy16.cpu (sdiv, divlh, sdivlh): New.

2002-11-05  Frank Ch. Eigler  <fche@redhat.com>

        * dev.scm: Call getenv with a string, not a symbol.

2002-10-08  Doug Evans  <dje@transmeta.com>
            Hans-Peter Nilsson  <hp@axis.com>

        * types.scm (bitrange-overlap?): Handle lsb0?.

2002-09-07  Frank Ch. Eigler  <fche@redhat.com>

        From Robert Cragie <rcc@jennic.com>:
        * cpu/arm7.cpu (ldm*-sw*, stm*-sw*): New instructions.
        
2002-07-17  Frank Ch. Eigler  <fche@redhat.com>
            Ben Elliston  <bje@redhat.com>
            John Healy  <jhealy@redhat.com>
            Jeff Johnston  <jjohnstn@redhat.com>
            Alan Lehotsky  <alehotsky@redhat.com>
            Ubicom Inc. <SupportDesk@ubicom.com>

        * cpu/ip2k.cpu: New file.
        * cpu/ip2k.opc: Likewise.

2002-07-01  Hans-Peter Nilsson  <hp@axis.com>

        * utils-gen.scm (-gen-extract-word): Handle lsb0?.

2002-06-25  J"orn Rennecke <joern.rennecke@superh.com>

        * cpu/sh64-compact.cpu (movw5): Use Correct operand field for reg.
        * cpu/sh64-media.cpu (-ldhi-byte, -ldhi-word, -ldhi-long): New macros.
        (-ldlo-byte, -ldlo-word, -ldlo-long): Likewise.
        (-sthi-word, -sthi-long -stlo-byte, -stlo-word, -stlo-long): Likewise.
        (ldhil, ldhiq, ldlol, ldloq, stlol, stloq): Implement.
        (mshfhib, mshfhil, mshfhiw, mshflob, mshflol, mshflow): Fix indices.
        (-sthi-byte): If there is a single byte to store, store it at
        proper address.
        (sthil, sthiq): Fix big-endian behaviour.
        (mcnvslw, mcnvswb, mcnvswub, mmacfxwl, mmacnfx.wl): Fix indices.
        (mmulfxl, mmulfxw, mmulfxrpw, mmulhiwl, mmullowl): Likewise.
        (saturate): Use Dimode to check if saturation operation is required.
        (usaturate): Likewise.
        (mpermw): Fix mask.
        (-maddsl, -maddsub): Compute to-be-saturated value in wider mode.
        (-maddsw, mmacfxwl, mmacnfx.wl, -mshaldsl, -mshaldsw): Likewise.
        (-mshardl, -mshardw, -msubsl, -msubsub, -msubsw): Likewise.
        (msadubq): Fix subword index in second operand of first subtraction.

2002-06-20  Hans-Peter Nilsson  <hp@axis.com>

        * sim-cpu.scm (gen-semantic-code): Prepend with setup-semantics
        code.

2002-06-18  Dave Brolley  <brolley@redhat.com>

        * cpu/frv.cpu: New cpu description.
        * cpu/frv.opc: New cpu support code.

2002-05-21  Dave Brolley  <brolley@redhat.com>

        * decode.scm (-opcode-slots): Don't consider bits beyond the
        length of the insn.

2002-05-17  Johan Rydberg  <jrydberg@rtmk.org>

        * cpu/powerpc.cpu: New file.

2002-05-01  Graydon Hoare  <graydon@redhat.com>

        * desc-cpu.scm (@arch@_cgen_cpu_close): Fix memory leaks.

2002-03-20  Hans-Peter Nilsson  <hp@axis.com>

        * doc/pmacros.texi (Symbol concatenation): Mention that .sym
        results are expanded recursively.

2002-03-19  Hans-Peter Nilsson  <hp@axis.com>

        * pmacros.scm (-pmacro-expand,scan): If result is a symbol,
        call scan-symbol on it, to enable recursive macro-expansion.

2002-01-25  Frank Ch. Eigler  <fche@redhat.com>

        * sid-cpu.scm (-gen-hardware-types): Generate single hardware union
        for multiple-isa configurations.
        * sid-decode.scm (-gen-decode-fn): Tolerate empty insn list.

2002-02-04  Ben Elliston  <bje@redhat.com>

        * cpu/sh.cpu, cpu/sh.opc: New files.
        * cpu/sh64-comact.cpu, cpu/sh64-media.cpu: Likewise.

2002-01-29  Hans-Peter Nilsson  <hp@axis.com>

        * doc/rtl.texi: Fix typo: define-attr, not define-attribute.
        (Enumerated constants): Mention that an ifield must not specify a
        multi-ifield.
        (Instruction operands): Ditto for index.
        (Expressions) <parallel>: Remove misplaced mention of local
        variables.
        <if>: Mention that mode must be specified and non-VOID when the
        result is used.

2002-01-28  Hans-Peter Nilsson  <hp@axis.com>

        * doc/porting.texi: When referring to *.opc, mention they are in
        the cpu subdir.  Call top-level directory toplevel, not devo.
        Close string in define-normal-insn example.

        * doc/pmacros.texi: Fix .substr typo to .substring.
        Mention that .sym expansions are not further expanded.

2002-01-22  Graydon Hoare  <graydon@redhat.com>

        * desc-cpu.scm (ifld-number-cache): Add.
        (ifld-number): Add.
        (gen-maybe-multi-ifld-of-op): Add.
        (gen-maybe-multi-ifld): Add.
        (gen-multi-ifield-nodes): Add.
        (cgen-desc.c): Add call to gen-multi-ifield-nodes.

2002-01-10  matthew green  <mrg@redhat.com>

        * cpu/xstormy16.cpu (gr-Rbj-names): Rename this ...
        (gr-Rb-names): ... to this.
        (h-Rb): New hardware piece.
        (h-Rbj): Use gr-Rb-names.
        (Rb): Use h-Rb.
        (holdx): New instruction.

2002-01-07  Ben Elliston  <bje@redhat.com>

        * utils.scm (package-cygnus-simulators): Rename from this ..
        (package-red-hat-simulators): .. to this.
        * opcodes.scm (option-set!): Use package-red-hat-simulators.
        * sid-cpu.scm (cgen-desc.h): Likewise.
        (cgen-cpu.h): Likewise.
        (cgen-defs.h): Likewise.
        (cgen-write.cxx): Likewise.
        (cgen-semantics.cxx): Likewise.
        (cgen-sem-switch.cxx): Likewise.        
        * sid-decode.scm (cgen-decode.h): Likewise.
        (cgen-decode.cxx): Likewise.
        * sid-model.scm (cgen-model.cxx): Likewise.
        * sid.scm (option-set!): Likewise.
        * sim.scm (option-set!): Likewise.

2002-01-07  Ben Elliston  <bje@redhat.com>

        * utils.scm (copyright-fsf): Add 2002.
        (copyright-cygnus): Rename to copyright-red-hat.
        (copyright-red-hat): Add 2002.
        (CURRENT-COPYRIGHT): Update comment.
        * opcodes.scm (option-set!): Update callers.
        * sid-model.scm (cgen-model.cxx): Likewise.
        * sid-cpu.scm: Likewise.
        * sid-decode.scm: Likewise.
        * sid.scm (option-set!): Handle "redhat" as an option for
        "copyright"; use copyright-red-hat.
        * sim.scm (option-set!): Likewise.

2002-01-03  Dave Brolley  <brolley@redhat.com>

        * decode.scm (-distinguishing-bit-population): Compute num-insns, the
        number of insns in the list.  Update the population count function to
        identify and prioritize 3 catgories of useful bits.
        (-population-top-few): Don't consider bits with a population count of
        zero.
        (-build-decode-table-entry): Don't call
        filter-harmlessly-ambiguous-insns.  Filter out non-specialized and
        identical insns at the next tree level.
        * insn.scm (filter-harmlessly-ambiguous-insns): Note in a comment that
        this function is no longer used.
        (filter-non-specialized-ambiguous-insns): New function.
        (filter-identical-ambiguous-insns): New function.
        (find-identical-insn): New function.
        (filter-harmlessly-ambiguous-insns): Removed.

2001-11-26  Geoffrey Keating  <geoffk@redhat.com>
            matthew green  <mrg@redhat.com>
            Frank Ch. Eigler  <fche@redhat.com>
            Nick Clifton  <nickc@cambridge.redhat.com>

        * cpu/xstormy16.cpu: New file.
        * cpu/xstormy16.opc: New file.

2001-11-26  Frank Ch. Eigler  <fche@redhat.com>

        * doc/sim.texi, rtl.texi, porting.texi: Correct texinfo markup typos.

2001-11-14  Dave Brolley  <brolley@redhat.com>

        * utils-gen.scm (-gen-extract-word): Correct computation of the length
        of the field being extracted.

2001-10-29  Johan Rydberg  <johan@rydberg.com> 

        * doc/rtl.texi (Expressions): Document the (error ..), (sqrt ..),
        (cos ...) and (sin ..) rtx.

2001-10-13  Nick Clifton  <nickc@cambridge.redhat.com>

        * desc-cpu.scm: Do not include ctype.h in generated desc
        files.  They will inherit safe-ctype.h instead.

2001-10-08  Nick Clifton  <nickc@cambridge.redhat.com>

        * desc-cpu.scm: Add missing function prototypes (for generated
        C files).  Fix compile time warning messages about unused
        parameters (for generated C files).
        * opc-asmdis.scm: The same.
        * opc-ibld.c: The same.
        * opc-itab.scm: The same.
        * cpu/fr30.opc: The same.
        * cpu/m32r.opc: The same.
        * cpu/openrisc.opc: The same.

2001-09-17  graydon hoare  <graydon@redhat.com>

        * insn.scm (syntax-break-out): Correct logic in handling escaped
        syntax characters.

2001-07-12  Jeff Johnston  <jjohnstn@redhat.com>

        * opc-itab.scm (@arch@_cgen_init_opcode_table): Unconditionally
        call @arch@_cgen_build_insn_regex now that regex support is in
        libiberty.

2001-07-12  Frank Ch. Eigler  <fche@redhat.com>

        * insn.scm (filter-harmlessly-ambiguous-insns): Fix msg typo.
        (mask-superset?): Look for strict supersets to allow rejection of
        duplicate insns.

2001-07-11  Frank Ch. Eigler  <fche@redhat.com>

        * sid-cpu.scm (-gen-mach-params): New proc to emit ...CHUNK_BITSIZE...
        (cgen-desc.h): Call it.
        * sid-decode.scm (-gen-decode-fn): Use base-insn-bitsize as
        decode-size.
        * utils-sim.scm (-gen-decode-insn-entry): For SID only, prepare
        entire_insn for extraction, if it's shorter than base-insn-bitsize.

2001-07-11  Frank Ch. Eigler  <fche@redhat.com>

        * desc-cpu.scm (-gen-mach-table-defns): Emit fourth field: the
        mach->cpu insn-chunk-bitsize.
        (-gen-cpu-open): In @arch@_cgen_rebuild_tables, process above new
        field toward CGEN_CPU_TABLE->insn_chunk_bitsize.
        * mach.scm (<cpu>): New field insn-chunk-bitsize.
        (-cpu-parse, -cpu-read): Parse/initialize it.
        * doc/rtl.texi (define-cpu): Document it.

2001-07-09  Geoffrey Keating  <geoffk@redhat.com>

        * ifield.scm (<ifield> 'field-start): Don't look at word-len.

2001-07-06  Ben Elliston  <bje@redhat.com>

        * opcodes.scm (read-cpu.opc): Read .opc files from subdir/cpu.

2001-07-05  Ben Elliston  <bje@redhat.com>

        * README: Update.

        * read.scm (include): Include files from srcdir/cpu.
        (-cgen): Likewise for loading .cpu files.
        * sid.scm (sim-finish!): Read .sim files from srcdir/cpu.
        * *.cpu: Move all cpu descriptions into cpu subdirectory.
        * *.opc: Likewise.
        * simplify.inc: Likewise.

2001-07-04  Ben Elliston  <bje@redhat.com>

        * read.scm (include): Log "Including file" message at level 1,
        rather than outputting it with (display).
        (cpu-load): Log "Loading cpu description" and "Processing cpu
        description" messages at levels 1 and 2, respectively, rather than
        using (display).

2001-06-14  Geoffrey Keating  <geoffk@redhat.com>

        * desc.scm (<keyword> 'gen-defn): Add extra zero into
        CGEN_KEYWORD_ENTRY initializers.

        * gas-test.scm (gen-gas-test): Create 8 testcases, not just 5.
        (<operand> 'test-data): Involve both the index and the hardware
        in testcase generation.
        (<hw-indx> 'test-data): Generate test data from the underlying
        object.
        (<ifield> 'test-data): Generate test data by computing bit
        patterns for the field, then decoding them.
        (<hw-address> 'test-data): Allow for new calling convention.
        (<hw-iaddress> 'test-data): Likewise.
        (<keyword> 'test-data): Convert index values into keywords.
        (<hw-asm> 'test-data): Convert index values into integer strings.

        * gas-test.scm (cgen-build.sh): Escape '.' as well.

2001-06-01  Frank Ch. Eigler  <fche@redhat.com>

        * rtl.scm (hw): Encode hw access mode into <operand> name, since this
        is required for multi-mode hw types (memory).

2001-05-11  Ben Elliston  <bje@redhat.com>

        * gas-test.scm (cgen-build.sh, gentest): Escape $ with a backslash
        when generating allinsn.d from objdump output. Without it, the
        testsuite will treat $ as the regular expression for end of line.

2001-05-09  Ben Elliston  <bje@redhat.com>

        * doc/porting.texi (Doing a GAS port): Replace `cgen_opcode_open'
        with `cgen_cpu_open'; documentation had become out of date.
        * doc/rtl.texi (Instruction operands): Likewise.

2001-05-07  Frank Ch. Eigler  <fche@redhat.com>

        * iformat.scm (compute-insn-base-mask-length): Rewrite to tolerate
        various-base-length instruction sets.

2001-04-02  Ben Elliston  <bje@redhat.com>

        * sid-cpu.scm (-last-insn): New function.
        (-gen-sem-switch-engine): Loop through idesc while less than or
        equal to the last instruction enum, not less than the MAX enum.
        (-gen-sfrag-engine-fn): Clean up frag_label_table initialisation.
        * sid-decode.scm (-gen-decode-insn-globals): Define the idesc
        table's size to be the last instruction enum plus one, not
        @PREFIX@_INSN_MAX.
        * sid.scm (gen-cpu-insn-enum-decl): Do not append a dummy `max'
        instruction onto the instruction list.
        
        * sim-decode.scm (@prefix@_init_idesc_table): Compute tabsize
        using the size of the table and its elements.
        (-gen-decode-insn-globals): Define the idesc table's size to be
        the last instruction enum plus one, not @PREFIX@_INSN_MAX.
        * sim-model.scm (-gen-mach-defns): Define CPU_MAX_INSNS as the
        last instruction enum plus one, not @CPU@_INSN_MAX.

2001-03-28  Ben Elliston  <bje@redhat.com>

        * doc/version.texi (UPDATED, EDITION): Update.
        * doc/stamp-vti: Likewise.

2001-03-26  Ben Elliston  <bje@redhat.com>

        * doc/credits.texi (Credits): Update.

        * gas-test.scm (<keyword>,test-data): Prefix keywords by their
        specified prefix and, if necessary, escape `$' in gas-build.sh to
        prevent unwanted shell variable expansion.

2001-03-24  Ben Elliston  <bje@redhat.com>

        * gas-test.scm (<hw-asm>,test-data): Choose pseudo-random data.
        (<keyword>,test-data): Likewise.
        (<hw-address>,test-data): Likewise.
        (<hw-iaddress>,test-data): Likewise.
        (-collate-test-set): New function.
        (build-test-set): Use it.
        (gen-gas-test): Generate five test cases per instruction.
        (cgen-allinsn.exp): Include "-*- Tcl -*-" in DejaGNU test file.

        * read.scm: Load "slib/random" if random is not defined.
        * slib/random.scm: New file.

        * utils.scm: Remove comments about the Hobbit compiler.
        (copyright-cygnus): Add 2001.
        (package-cygnus-simulators): Replace "Cygnus" with "Red Hat".
        (package-gnu-simulators): Tidy.

2001-03-23  Ben Elliston  <bje@redhat.com>

        * cgen-gas.scm: Inline documentation improvements.

2001-03-21  Ben Elliston  <bje@redhat.com>

        * opc-itab.scm (compute-syntax): Emit a parse error if an operand
        given in a syntax string is undefined.

        * opc-itab.scm (compute-syntax): Emit a parse error if an operand
        name is empty or invalid -- eg. "$(rs)" instead of "($rs)".

2001-03-20  Patrick Macdonald  <patrickm@redhat.com>

        * desc-cpu.scm (@arch@_cgen_cpu_open): Correct machine calculation
        for arg_type CGEN_CPU_OPEN_BFDMACH.

2001-03-20  Ben Elliston  <bje@redhat.com>

        * opc-itab.scm (-gen-insn-enum): Do not append a dummy `max'
        instruction onto the instruction list. Define MAX_INSNS to be the
        value of the last instruction enum plus one.

2001-03-14  Nick Clifton  <nickc@redhat.com>

        * utils.scm (copyright-fsf): Add 2001.  Remove (C).

2001-03-05  Dave Brolley  <brolley@redhat.com>

        * sim-decode.scm (-gen-extract-case): Generate declaration of "insn"
        if the number of ifields is greater than zero.

2001-03-01  Frank Ch. Eigler  <fche@redhat.com>

        * sid.cpu (-op-gen-set-trace[-parallel], -create-virtual-insns!):
        Emit LIKELY/UNLIKELY branch probability hints.
        * sid-decode.cpu (-gen-record-args): Ditto.

2001-02-02  Patrick Macdonald  <patrickm@redhat.com>

        * desc-cpu.scm (-gen-hash-defines): Rename
        CGEN_ACTUAL_MAX_SYNTAX_BYTES to CGEN_ACTUAL_MAX_SYNTAX_ELEMENTS.

2001-01-26  Frank Ch. Eigler  <fche@redhat.com>

        * sid-cpu.scm (gen-parallel-exec-type): Use unsigned long long for
        writeback tracking.
        (-gen-write-fn, -gen-sem-case, -gen-sfrag-case): Ditto.
        * sid-decode.scm (-gen-scache-decls): Exclude writeback tracking field
        if unnecessary.
        * sid.scm (<operand> gen-write): Use unsigned long long expression
        for writeback.
        (-op-gen-set-trace, -op-gen-set-trace-parallel): Ditto.
        (<unit> gen-profile-code): Ditto.

2001-01-23  Johan Rydberg  <jrydberg@opencores.org>

        * doc/rtl.texi (Expressions): Document the (index-of ...) and
        (regno ...) rtx.

2001-01-08  Frank Ch. Eigler  <fche@redhat.com>

        * operand.scm (<operand> pretty-sem-name): New field.
        (<operand> make): Initialize it from hw-name.
        (op:set-pretty-sem-name!): New function.
        (<operand> gen-pretty-name): Default to fetching new field.
        * rtl.scm (hw): Copy hw-name to pretty-sem-name instead.  Restore
        sem-name setting from -rtx-hw-name.

2001-01-08  Frank Ch. Eigler  <fche@redhat.com>

        * rtl.scm (hw): Copy hw-name to new operand's sem-name, to simplify
        its subsequent gen-pretty-name.

        * read.scm: Increase thread working stack limit and backtrace
        depth limits.

2001-01-08  Frank Ch. Eigler  <fche@redhat.com>

        * doc/rtl.texi: Deprecate and depreciate the decode-assist construct.

2001-01-06  Johan Rydberg  <jrydberg@opencores.org>

        * openrisc.cpu (or32): Setup semantics for h-delay-insn to
        current insn plus 4.
        (h-delay-insn): New hardware register.
        (l-jal): Uses h-delay-insn instead of pc when setting link register.
        (l-jalr): Likewise.
        (l-bal): Likewise.

        * openrisc.opc (parse_hi16): Sign extend value.
        (parse_lo16): Likewise.

2001-01-06  Ben Elliston  <bje@redhat.com>

        * utils-gen.scm (gen-sfmt-enum-decl): Use @prefix@ and @PREFIX@
        instead of @cpu@ and @CPU@ to generically prefix symbol names.
        * sim-cpu.scm (-gen-sem-fn-table-entry): Likewise.
        (-gen-semantic-fn-table): Likewise.
        (-gen-scache-semantic-fn): Likewise.
        (-gen-no-scache-semantic-fn): Likewise.
        (cgen-read.c): Likewise.
        (cgen-sem-switch.c): Likewise.
        * desc-cpu.scm (cgen-desc.c): Use @arch@, not @prefix@, since this
        is a filename prefix.
        * sim-decode.scm (IDESC-TABLE-VAR): Use @prefix@, et al.
        (-gen-decode-insn-globals): Likewise.
        (-gen-idesc-decls): Likewise.
        (cgen-decode.h): Likewise.
        (cgen-decode.c): Likewise.
        * sim.scm (gen-cpu-insn-enum-decl): Likewise.
        (gen-cpu-insn-enum): Likewise.
        (sim-finish!): Likewise.

2001-01-05  Johan Rydberg  <jrydberg@opencores.org>

        * openrisc.cpu: New file.
        * openrisc.opc: Likewise.

2000-12-12  Ben Elliston  <bje@redhat.com>

        * doc/rtl.texi (Expressions): Document the (delay ..) rtx.

2000-12-07  Ben Elliston  <bje@redhat.com>

        * sim-decode.scm (-gen-extract-case): Do not emit a definition for
        "insn" when there are zero ifields to extract.

2000-12-04  Frank Ch. Eigler  <fche@redhat.com>

        * utils-sim.scm (gen-define-argbuf-macro): Handle sfmt=#f case, to be
        used by simple/non-scache simulators.
        * sim-cpu.scm (-gen-read-case): Call gen-define/undef-field-macro
        regardless of with-scache?.
        (-gen-write-case, -gen-no-scache-semantic-fn, -gen-sem-case): Ditto.

2000-12-03  Ben Elliston  <bje@redhat.com>

        * desc-cpu.scm (cgen-desc.h): Clarify generated filenames.
        (cgen-desc.c): Likewise.

2000-12-01  Greg McGary  <greg@mcgary.org>

        * desc.scm (<keyword>,gen-defn): Prepend prefix to keyword names.

2000-12-01  Ben Elliston  <bje@redhat.com>

        * sim-cpu.scm (cgen-cpu.h): Only emit argbuf, scache and extract
        definitions if run without with-multipla-isa?.
        (cgen-defs.h): New function. Emit an ISA-specific defs file.
        * cgen-sim.scm (sim-arguments): Accept -G option to generate defs.

2000-11-24  Ben Elliston  <bje@redhat.com>

        * sim-cpu.scm (-gen-hardware-struct): New function.
        (-gen-hardware-types): If with-multiple-isa is specified, emit all
        hardware elements wich have share one or more ISAs with the ISAs
        being kept.

        * sim.scm (-with-multiple-isa?): New symbol.
        (with-multiple-isa?): New function.
        (option-init!): Initialise -with-multiple-isa?.
        (option-set!): Handle with-multiple-isa option.

2000-11-21  Ben Elliston  <bje@redhat.com>

        * utils.scm (copyright-fsf): Add the year 2000.

2000-11-20  Frank Ch. Eigler  <fche@redhat.com>

        * opc-itab.scm (-gen-ifmt-table, -gen-macro-insn-table: Remove 
        unneeded "\n\n" from F() macro definition.

2000-11-15  Greg McGary  <greg@mcgary.org>

        * utils-cgen.scm (gen-define-with-symcat): New function.
        * desc-cpu.scm (gen-ifld-defns): Use it.
        (gen-hw-table-defns): Use it.
        (-gen-hash-defines): Use it.
        (gen-operand-table): Use it.
        (gen-insn-table): Use it.  Remove spurious `#undef MNEM'.
        * opc-itab.scm (-gen-ifmt-table): Use it.
        (-gen-insn-opcode-table): Use it.
        (-gen-macro-insn-table): Use it.
        * opc-opinst.scm (-gen-operand-instance-tables): Use it.
        * sim-cpu.scm (cgen-semantics.c): Use it.
        (cgen-sem-switch.c): Use it.

2000-11-10  Frank Ch. Eigler  <fche@redhat.com>

        * utils-sim.scm (-gen-decode-insn-entry): Add fn? parameter to signal
        request to emit calls to insn extractors as functions rather than
        branches to inline blocks.
        (-gen-decode-expr-set-itype, -gen-decode-expr-entry): Ditto.
        (-gen-decode-table-entry, -gen-decoder-switch, gen-decoder): Ditto.

        * sim-decode.c (-gen-decode-fn): Tell (gen-decode) to emit branches
        to extractor clauses.

2000-11-10  Frank Ch. Eigler  <fche@redhat.com>

        * decode.scm (-distinguishing-bit-population): Significantly
        improve popularity heuristic.  Renamed from
        (-mask-bit-population): Gone.
        (-population-above-threshold): Sort new bit numbers in order of
        popularity.
        (-population-top-few): Allow up to three more bits to be selected
        than requested.  Correct selection order to prefer better bits.
        Correct bug in fewer-than-requested case.  Keep threshold as
        floating-point.
        (decode-best-get-bits): Pass also the insn-values.

        * utils-sim.scm (-gen-decoder-switch): Add comment suggesting a
        future optimization.

        * utils.scm (message): Format nested lists better.

2000-11-09  Doug Evans  <dje@casey.transmeta.com>

        * dev.scm: Add srcdir to %load-path.

        * rtx-funcs.scm (subword): Mode of argument can be different
        than mode of result, so don't use OP0 to specify argument's mode.

2000-11-02  Ben Elliston  <bje@redhat.com>

        * doc/porting.texi (Building a GAS test suite): Document my change
        to gas-build.sh.

2000-11-01  Ben Elliston  <bje@redhat.com>

        * sim-test.scm (cgen-build.sh): Include "-*- Asm -*-" in test cases.

2000-10-31  Ben Elliston  <bje@redhat.com>

        * gas-test.scm (cgen-build.sh): Allow the generated script to run
        with no command line arguments if the gas build directory can be
        determined.

2000-10-26  Doug Evans  <dje@casey.transmeta.com>

        * insn.scm (-parse-insn-format-symbol): Fix spelling error,
        op-ifld -> op-ifield.

2000-10-23  Frank Ch. Eigler  <fche@redhat.com>

        * thumb.scm (cc-tests): Add (ISA thumb) attribute.

2000-10-13  matthew green  <mrg@cygnus.com>

        * utils-cgen.scm (get-ifetch): Move from here ...
        * sim.scm (get-ifetch): ... to here.
        * sid.scm (get-ifetch): Copy and port to c++.

2000-10-06  Dave Brolley  <brolley@redhat.com>

        * utils-gen.scm (-gen-ifld-extract-base): Compute start position as
        ifld-start + ifld-word-offset.
        (gen-ifld-extract): Check adata-integral-insn? before checking whether
        the field is beyond the base number of bits.
        (gen-define-ifields): Use a base-length of 32 if adata-integral-insn?.
        (gen-extract-ifields): Ditto.
        * gas-test.scm (gentest): Generate backslashes before '[' and ']'
        characters in the regular expression.

2000-10-02  Frank Ch. Eigler  <fche@redhat.com>

        * desc-cpu.scm: (gen-operand-decls): Emit MAX_OPERANDS as a
        preprocessor constant.

2000-09-21  Frank Ch. Eigler  <fche@redhat.com>

        * slib/logical.scm: New file from slib.  Provides robust bitwise
        logical operations for large integers.
        * read.scm: maybe-load it.

2000-09-15  Frank Ch. Eigler  <fche@redhat.com>

        * enum.scm (define-full-insn-enum): Filter with keep-isa predicate.
        * ifield.scm (-ifield-parse, -multi-ifield-parse): No longer assert
        single-isa predicate, but support keep-isa filtering.

2000-09-08  Frank Ch. Eigler  <fche@redhat.com>

        * rtl-c.scm (s-sequence): Handle nested c-calls in both
        statement-expression and comma-expression contexts.
        (s-c-call, s-c-raw-call): Add warning comment about bad assumption.

2000-09-08  Frank Ch. Eigler  <fche@redhat.com>

        * decode.scm (-population-top-few): Signal error gracefully if
        decoding is about to become ambiguous.

2000-09-06  Frank Ch. Eigler  <fche@redhat.com>

        * doc/rtl.texi (decode-assist): Describe this field as optional.

2000-09-06  Frank Ch. Eigler  <fche@redhat.com>

        * utils-gen.scm (gen-multi-ifld-extract): Handle case of multi-ifield
        with decode proc.

2000-09-05  Dave Brolley  <brolley@redhat.com>

        * sim.scm (sim-finish!): Honour the definition of FAST_P when calling
        @cpu@_pbb_begin. Use 0 if FAST_P is not defined.

2000-08-29  Dave Brolley  <brolley@redhat.com>

        * utils-gen.scm (gen-ifld-extract): Pass total-len if
        adata-integral-insn is true for this architecture.

2000-08-24  Frank Ch. Eigler  <fche@redhat.com>

        * hardware.scm (<hw-immediate> get-index-mode): Define method.
        * operand.scm (<operand> gen-pretty-name): Tolerate no op:sem-name.
        * rtl-c.scm (-c-rtl-get): Improve an error message.
        * sim.scm (-op-gen-set-trace): Support <derived-operand> lvalues.       

2000-08-22  Frank Ch. Eigler  <fche@redhat.com>

        * Makefile.in (DIST_COMMON): Regenerated.
        * ifield.scm (<derived-ifield> needed-iflds): New method.
        * iformat.scm (-ifmt-lookup-sfmt!): Use base ifields for
        sfmts built from <derived-ifield>s.
        * operand.scm (-derived-parse-encoding): Give <derived-ifield> a fixed
        type symbol 'derived-ifield, not an unparseable string.
        * utils-sim.scm (op-needed-iflds) Handler 'derived-ifield case.
        (-sfmt-contents): Add tracing.

        From Doug Evans <dje@transmeta.com>:
        * sim.scm (<operand> cxmake-get): Result is a <c-expr>, not a string of
        C code.

2000-08-20  Doug Evans  <dje@casey.transmeta.com>

        * rtl-c.scm (rtl-c-expr-with-estate): New fn.
        (rtl-c-expr-parsed,rtl-c-expr): New fns.
        (-rtl-c-get): Rename from rtl-c-get.
        (rtl-c-get): New fn for getter logging.

2000-07-28  Ben Elliston  <bje@redhat.com>

        * NEWS: Update.

2000-07-25  Ben Elliston  <bje@redhat.com>

        * doc/credits.texi (Credits): Add Frank Eigler.

2000-07-24  Dave Brolley  <brolley@redhat.com>

        * opc-itab.scm (gen-insn-opcode-table): Initialize the first element
        fully.
        * desc.scm (gen-attr-table-defn): Initialize all elements fully.
        (<keyword>): Initialize all elements fully.
        * desc-cpu.scm (-gen-isa-table-defns): Initialize the last element
        fully.
        (-gen-mach-table-defns): Ditto.
        (-gen-ifld-defns): Ditto.
        (-gen-operand-table): Ditto.
        (-gen-insn-table): Ditto.
        (-gen-cpu-open): Nothing to do for the mach table.

2000-07-13  Ben Elliston  <bje@redhat.com>

        * doc/version.texi (UPDATED): Update.

2000-07-05  Ben Elliston  <bje@redhat.com>

        * configure.in (AC_PATH_PROG): Remove.
        * configure: Regenerate.
        * Makefile.am (GUILE): Locate guile dynamically.
        * Makefile.in: Regenerate.
        * doc/Makefile.in: Likewise.

2000-07-03  Ben Elliston  <bje@redhat.com>

        * desc-cpu.scm (cgen-desc.c): Include "libiberty.h".
        * opc-itab.scm (cgen-opc.c): Likewise.

2000-06-28  Frank Ch. Eigler  <fche@redhat.com>

        * rtl.scm (-rtx-traverse-locals): Correct call to `symbol?' for
        guile 1.4 compatibility.
        (rtx-env-dump): Comment out buggy display calls.

2000-06-15  matthew green  <mrg@redhat.com>

        * opc-itab.scm (-gen-ifmt-table-1): Add extra braces to pacify GCC.

2000-06-14  Frank Ch. Eigler  <fche@redhat.com>

        * Makefile.in: Regenerated.

        * desc-cpu.scm (gen-ifld-decls): Exclude derived ifields.
        (gen-ifld-defns): Ditto.
        * pgmr-tools.scm (pgmr-pretty-print-insn-format): Ditto.
        * rtl.c (rtl-finish!): Ditto.
        * opc-itab.scm (-gen-ifield-decls): Ditto.
        * opcodes.scm (gen-switch): Exclude derived operands.
        * operand.scm (op-iflds-used): Expand derived operands.
        (hw-index-derived): New dummy function to create dummy object.
        (-derived-operand-parse): Fix mode arg passed to <derived-operand>
        constructor.  Set object's hw-name and index fields.
        (-anyof-merge-subchoices): Set instance object's index also.
        (-anyof-name): New helper function.
        (anyof-merge-semantics): Correct replacement of operand names in
        anyof instance.
        (op-ifield): Tolerate derived-operands and their funny indices better.
        * ifield.scm (ifld-known-values): Expand derived ifields.
        (non-multi-ifields, non-derived-ifields): New utility functions.
        (ifld-decode-mode): Tolerate objects with unbound decode field.
        * iformat.scm (compute-insn-length): Expand derived ifields.
        (compute-insn-base-mask): Ditto.
        * insn.scm (insn-base-ifields): Remove.
        (<insn>): Add iflds-values entry to cache ifld-base-ifields values.
        (insn-value): Call ifld-base-ifields and ifld-constant? instead.
        * mach.scm (arch-analyze-insns!): Exclude multi-insns.
        * sem-frags.scm (sim-sfrag-analyze-insns!): Ditto.
        (-frag-test-data): Ditto.
        * sid-cpu.scm (cgen-write.cxx,-gen-sem-switch): Ditto.
        (-gen-sem-switch-engine); Ditto.
        * sid-model.scm (-gen-model-insn-fns, -gen-model-timing-table): Ditto.
        * sid-decode.scm (cgen-decode.h, cgen-decode.cxx): Ditto.
        (-gen-record-args): Tolerate unbound op-ifield.
        * sid.scm (<derived-operand> cxmake-get): New sketch implementation.
        (-gen-arch-model-decls, scache-engine-insns, pbb-engine-insns):
        Exclude multi-insns.
        * sim-decode.scm (cgen-decode.h, cgen-decode.cxx): Ditto.
        * utils-sim.scm (op-extract?): Handle derived operands.
        
        * gas-test.scm (cgen-build.sh): Quote '*' chars printed by objdump.
        * semantics.scm (-build-operand!): Handle 'DFLT case during parsing.
        * hardware.scm (hardware-for-mode): New function.

        * insn.scm (filter-harmlessly-ambiguous-insns): New function for
        cleaning up decode tables.
        (mask-superset?): Little helper function for above.
        * decode.scm (-build-decode-table-entry): Call it.
        (-opcode-slots): Add some more tracing.
        * arm.cpu: Disable decode-splits construct due to implementation
        conflict with `filter-harmlessly-ambiguous-insns'

        * decode.scm (-population-top-few): New function for better decode
        bit generation.  Includes minor helper functions.
        (decode-get-best-bits): Call it instead.
        (OLDdecode-get-best-bits): Renamed previous version of above.


2000-06-13  Ben Elliston  <bje@redhat.com>

        * configure.in: Use AC_EXEEXT with Cygnus mode. Remove AC_ARG_WITH
        for the Guile library directory.
        * configure: Regenerate.
        * Makefile.in, doc/Makefile.in: Regenerate.

        * Makefile.in, doc/Makefile.in: Regenerate.
        * configure.in: Remove unnecessary tests. Move to version 1.0.
        * acconfig.h, config.in: Remove.
        * configure, aclocal.m4: Regenerate.
        * doc/stamp-vti, doc/version.texi: Likewise.
        * AUTHORS: New file.

2000-06-07 Ben Elliston  <bje@redhat.com>

        * fixup.scm (symbol-bound?): Reduce debugging output.

2000-06-02  matthew green  <mrg@redhat.com>

        * insn.scm (insn-base-ifields): Returns all the instruction fields for
        a given instruction, replacing derived fields with their subfields.
        (insn-value): Use `insn-base-ifields' to find all constant values.
        (multi-insn-instantiate!): Comment some debug messages.

2000-06-01  Ben Elliston  <bje@redhat.com>

        * doc/rtl.texi (Expressions): Document a hazard with the choice of
        symbol names used in a (c-call ..) rtx.

        * sim-test.scm (build-test-set): Return (()) for an instruction
        with no operands, so it too is included in the generated test set.

2000-05-31  Ben Elliston  <bje@redhat.com>

        * Makefile.am (gas-test): Ensure $(ISA) is not empty.
        (sim-test): Likewise.
        * Makefile.in: Regenerate.

2000-05-30  Frank Ch. Eigler  <fche@redhat.com>

        * read.scm (-cgen): In debugging mode (-b), ask guile for untruncated
        stack traceback, in an order that resembles gdb's `bt'.

2000-05-24  Frank Ch. Eigler  <fche@redhat.com>

        * desc-cpu.scm (-gen-hash-defines): Use ifmt-ifields again.
        * opc-itab.scm (-gen-ifmt-table-1): Ditto.
        * gas-test.scm (gas-test-analyze!, cgen-build.sh): Filter out
        multi insns.
        * ifield.scm (multi-ifield): Define workable field-mask and field-value
        virtual functions.
        (ifld-base-ifields): New routine to replace ifmt-expanded-ifields.
        * iformat.scm (ifmt-expanded-ifields): Gone.
        (ifields-base-ifields): New function.  Call ifld-base-ifields for real
        work.
        (-ifmt-lookup-ifmt!): Use it to expand derived/multi combos in new
        ifmt entries.

        * opcodes.scm (multi-ifield gen-extract): Correct spacing in generated
        code.

2000-05-23  Frank Ch. Eigler  <fche@redhat.com>

        * sid.scm (with-any-profile?): New function clone.

2000-05-19  Frank Ch. Eigler  <fche@redhat.com>

        * utils-gen.scm (gen-multi-ifld-extract): Fix decode hook for sim.

2000-05-18  Frank Ch. Eigler  <fche@redhat.com>

        * ifield.scm (-multi-ifield-parse): Add encode/decode args.
        (-multi-ifield-read): Parse them.
        (define-full-multi-ifield): Pass #f/#f as defaults for them.
        * opcodes.scm (multi-ifield gen-insert): Add encode hook.
        (multi-ifield gen-extract): Add decode hook.
        * utils-gen.scm (gen-multi-ifld-extract): Add decode hook for sim.

        * insn.scm (syntax-break-out): More correctly handle \-escaped
        syntax characters.
        (syntax-make-elements): Ditto.
        * opc-itab.scm (compute-syntax): Ditto.

2000-05-17  Ben Elliston  <bje@redhat.com>

        * gas-test.scm (cgen-build.sh): Log the correct script filename.

2000-05-15  Frank Ch. Eigler  <fche@redhat.com>

        * gas-test.scm (build-test-set): Return (()) for an instruction
        with no operands, so it too is included in the generated test set.

2000-05-15  Frank Ch. Eigler  <fche@redhat.com>

        * desc-cpu.scm (-gen-hash-defines): Define CGEN_ACTUAL_MAX values for
        IFMT_OPERANDS and SYNTAX_BYTES.

2000-05-15  Frank Ch. Eigler  <fche@redhat.com>

        * sim.scm (with-any-profile?): New function.
        * utils-sim.scm (-sfmt-contents): Use above instead of `with-profile?'
        to decide whether or not to include profiling counters.

2000-05-10  Frank Ch. Eigler  <fche@redhat.com>

        Fuller derived-operand support for opcodes.
        * insn.scm (non-multi-insns): New filter to oppose `multi-insns'.
        * desc-cpu.scm (-define-hash-defines): Compute CGEN_MAX_SYNTAX_BYTES.
        Correctly compute ..._IFMT_OPERANDS.  Omit useless ..._INSN_OPERANDS.
        (gen-operand-table): Omit derived- and anyof- operands from table.
        (gen-insn-table): Omit multi-insns from table.
        * iformat.scm (ifmt-expanded-fields): New function to expand
        subfields of derived-ifields.
        (ifmt-compute!): Ignore remaining multi-insns.
        * mach.scm (isa-min-insn-bitsize, isa-max-insn-bitsize): Ignore
        multi-insns.
        * opc-itab.scm (-gen-ifmt-table-1): Use ifmt-expanded-ifields.
        (-gen-insn-enum, -gen-insn-opcode-table): Ignore multi-insns.
        * opcodes.scm (derived-operand): Define abort()ing gen-insert,
        gen-extract, gen-fget, gen-fset, gen-parse, gen-print functions.
        (gen-switch): Omit anyof-operands.
        * operand.scm (-anyof-syntax): New function.
        (-anyof-merge-syntax): Call it.
        * utils.scm (collect): New idiomatic function.

2000-05-10  Ben Elliston  <bje@redhat.com>

        * m68k.cpu: New file (work in progress).

2000-05-05  Frank Ch. Eigler  <fche@redhat.com>

        * Makefile.am (all-local): New target.  Create stamp-cgen.
        * Makefile.in: Regenerated.
        * doc/Makefile.in: Regenerated.

2000-04-26  Frank Ch. Eigler  <fche@redhat.com>

        * operand.scm (-operand-g/setter-syntax): Correct off-by-one error.
        (-operand-parse-setter): Ditto.
        * utils-sim.scm (needed-iflds): Store ifield (index) in argbuf, even
        for CACHE-ADDR operands.
        * sid-decode.scm (-gen-record-args): Remove newly duplicated extract
        trace entries.  Widen byte-wide values for printing.
        * sid.scm (-op-gen-set-trace): Enhance result trace with op indices.
        Widen byte-wide values for printing.  Hexify memory addresses.

2000-04-23  matthew green  <mrg@redhat.com>

        * m32r.cpu: Fix a typo.

Fri Apr 21 22:18:48 2000  Jim Wilson  <wilson@cygnus.com>

        * ia64.cpu (define-model): Change merced to Itanium.
        (f-qp): Change quilifying to qualifying.
        (movbr_ph, movbr_pvec): Delete.
        (I-I21): Delete uses of movbr_ph and movbr_pvec.

2000-04-07  Ben Elliston  <bje@redhat.com>

        * doc/porting.texi (Building a simulator test suite): Clarify
        where generated test cases are placed.

2000-04-07  Ben Elliston  <bje@redhat.com>

        * Makefile.am (gas-test): Remove dependency on `cgen'.
        (sim-test): Ditto.
        * Makefile.in: Regenerate.

2000-04-04  Frank Ch. Eigler  <fche@redhat.com>

        * hardware.scm (<hw-pc> parse): Allow user to set type for pc register.
        * mode.scm (mode-finish!): Add placeholder code for mach-dependent
        type reconfiguration.
        * utils-sim.scm (-sfmt-contents): Add profile-counters only if
        with-profile?.

2000-03-30  Ben Elliston  <bje@redhat.com>

        * doc/rtl.texi (Enumerated constants): Add concept index entries.

2000-03-24  Ben Elliston  <bje@redhat.com>

        * Makefile.am (stamp-cgen): Reinstate target.
        * Makefile.in: Regenerate.

2000-03-22  Ben Elliston  <bje@redhat.com>

        * slib/ppfile.scm: Remove; unused.
        * slib/defmacex.scm: Likewise.

2000-03-21  Ben Elliston  <bje@redhat.com>

        * doc/internals.texi (Source file overview): Document.

        * Makefile.am (GUILEDIR): Remove.
        (CGEN): Ditto. Callers use $(GUILE) instead.
        (GUILEFLAGS): Ditto.
        (CGENFILES): Ditto.
        (APPDESCFILES): Ditto.
        (OPCODESFILES): Ditto.
        (SIMFILES): Ditto.
        (pkgdata_SCRIPTS): Ditto.
        (stamp-cgen): Remove target.
        * Makefile.in: Regenerate.

        * configure.in: Remove header and library tests.
        * configure: Regenerate.
        * config.in: Likewise.

2000-03-20  Ben Elliston  <bje@redhat.com>

        * read.scm: Cease loading "hob-sup.scm".
        * utils.scm: Inherit the fastcall family of procedures (for now).
        * hob-sup.scm: Remove.

2000-03-20  Ben Elliston  <bje@redhat.com>

        * configure.in (AC_OUTPUT): Do not emit .gdbinit.
        * configure: Regenerate.
        * gdbinit.in: Remove.

2000-03-17  Ben Elliston  <bje@redhat.com>

        * Makefile.am (CGEN): Use guile, not cgen.
        (CGENCFLAGS, LIBIBERTY, INCLUDES): Remove.
        (bin_PROGRAMS, cgen_SOURCES): Likewise.
        (CGENFILES): Fold CGEN_HOB_INPUT_FILES and CGEN_NOHOB_FILES.
        (HOBBIT_INPUT_FILES, HOBBIT_OUTPUT_FILE): Remove.
        (HOB_OBJS): Likewise.
        (CGEN_HOB_SRC, CGEN_HOB_OBJ): Likewise.
        (CGENOBJS): Likewise.
        (cgen_DEPENDENCIES, cgen_LDFLAGS, cgen_LDADD): Likewise.
        (hobbit, hobbit.o, hobbit.c): Remove targets.
        (cos.o, cgen.o, cgen-gh.o, hob-sup.o): Likewise.
        (CLEANFILES): Update.
        * acconfig.h (WITH_HOBBIT): Remove.
        * configure.in: Do not test for 3 arg scm_make_vector. Remove
        option --with-cgen-hobbit.
        * cos.h, cos.c, hob-main.c, hob-sup.c, hob-sup.h, hob.sh: Remove.
        * cgen-gh.h, cgen-gh.c, cgen-hob.scm, cgen.c: Likewise.
        * hobbit.c, hobbit.h, hobbit.scm: Likewise.
        * hobscmif.h, hobslib.scm, scmhob.h: Likewise.
        * Makefile.in: Regenerate.
        * config.in: Likewise.
        * aclocal.m4: Likewise.
        * configure: Likewise.
        * README (Hobbit support): Remove.
        * doc/internals.texi (Conventions): Do not mention Hobbit.
        * doc/porting.texi (Supported Guile versions): Likewise.

2000-03-16  Frank Ch. Eigler  <fche@redhat.com>
        
        * sid-cpu.scm (-gen-sem-switch-engine): Adjust calling &
        callback convention to new sid sidutil::basic_cpu code.
        (-gen-sfrag-engine-fn): Ditto.
        * sid.scm (-create-virtual-insns!): Ditto.
        (-hw-gen-set-quiet-pc): Mark delay slot execution specially in pbb
        mode.
        (cxmake-skip): Implement properly for pbb mode.
        
2000-03-03  Ben Elliston  <bje@redhat.com>

        * doc/internals.texi: New file.

2000-02-29  Ben Elliston  <bje@redhat.com>

        * doc/rtl.texi (Derived operands): Remove unnecessary footnote.
        * doc/porting.texi: Formatting tweaks.

2000-02-25  Nick Clifton  <nickc@cygnus.com>

        * desc-cpu.scm (*_cgen_cpu_open): Initialise signed_overflow_ok_p
        field. 

Thu Feb 24 14:09:01 2000  Doug Evans  <devans@seba.cygnus.com>

        * operand.scm (<anyof-operand>,make!): Initialize mode-name, not
        mode.

2000-02-23  Andrew Haley  <aph@cygnus.com>

        * m32r.cpu (pcmpbz): Make pcmpbz a special (i.e. hidden) 
        instruction.

2000-02-24  Ben Elliston  <bje@redhat.com>

        * doc/rtl.texi (Derived operands): Add some cindex entries.

2000-02-23  Ben Elliston  <bje@redhat.com>

        * ia32.cpu (dndo): Move general purpose macro from here ..
        * simplify.inc (dndo): .. to here.

2000-02-18  Frank Ch. Eigler  <fche@redhat.com>

        * arm.cpu (h-tbit): Add c-call setter function.
        (h-mbits): Ditto.

2000-02-17  Frank Ch. Eigler  <fche@redhat.com>

        * sem-frags.scm (-frag-hash-compute!): Add appstuff arg for traversal.
        (-frag-cost-compute!): Ditto.
        * utils.scm (copyright-cygnus): Add Y2K.
        * sid-cpu.scm (@prefix@_pbb_run): Add unsigned& argument.
        
2000-01-25  Nick Clifton  <nickc@cygnus.com>

        * desc-cpu.scm (@arch@_cgen_cpu_open): Add code to initialise
        flags field of the CGEN_CPU_TABLE structure.

Sun Dec 12 14:20:36 1999  Doug Evans  <devans@seba.cygnus.com>

        * operand.scm (<anyof-instance>): Renamed from <anyof-value>.
        All references updated.

Tue Nov 30 11:06:22 1999  Doug Evans  <devans@seba.cygnus.com>

        * ia32.cpu: Rewrite addressing mode support.

        * ifield.scm (<ifield>): New member `follows'.
        (ifld-known-values): New proc.
        (<ifield>): New method set-word-offset!.
        (ifld-set-word-offset!): New proc.
        (ifld-new-word-offset): New proc.
        (<ifield>): New method next-word.
        (<multi-ifield>): New method next-word.
        (ifld-next-word): New proc.
        (ifld-precedes?): New proc.
        (-ifield-parse): New args word-offset,word-length,follows.
        All callers updated.  Handle CISC-style vs RISC-style ifields.
        (-ifield-read): Recognize word-offset,word-length,follows specs.
        (-ifld-parse-follows): New proc.
        (-multi-ifield-make-default-insert): New proc.
        (-multi-ifield-make-default-extract): New proc.
        (-multi-ifield-parse): Provide default values for insert,extract
        handlers if not specified.
        (<derived-ifield>): New class.
        (derived-ifield?): New predicate.
        (ifld-derived-operand?): New predicate.
        (f-anyof): New global.
        (ifld-anyof?,ifld-anyof-operand?): New predicates.
        (f-derived,ifld-derived?): Delete.
        (ifield-builtin!): Delete init of f-derived.  Init f-anyof.
        * insn.scm (-sub-insn-ifields): New proc.
        (-sub-insn-make!): New proc.
        (multi-insn-instantiate!): Provide initial implementation.
        (-insn-parse): If insn contains "anyof" operands, create a
        <multi-insn> object instead of a plain <insn>.
        (-parse-insn-format-symbol): Rewrite derived operand handling.
        Add anyof operand handling.
        (-parse-insn-format-ifield-spec): Rewrite.
        (-parse-insn-format-operand-spec): Delete.
        (-parse-insn-format-list): Delete support for `(operand value)'.
        (anyof-operand-format?): Replaces derived-operand-format?.
        * operand.scm (-operand-parse-getter): Improve error messages.
        (-operand-parse-setter): Ditto.
        (<derived-operand>): New members args,syntax,base-ifield,encoding,
        ifield-assertion.
        (<anyof-operand>): Change baseclass from <derived-operand> to
        <operand>.  Delete member values.  New members base-ifield,choices.
        (anyof-operand?): New predicate.
        (-derived-parse-encoding,-derived-parse-ifield-assertion): New procs.
        (-derived-operand-parse): Rewrite.
        (-derived-operand-read): Rewrite.
        (-anyof-parse-choice): New proc.
        (-anyof-operand-parse): Rewrite.
        (-anyof-operand-read,define-anyof-operand): New procs.
        (<anyof-value>): Rewrite.
        (-anyof-initial-known): New proc.
        (anyof-satisfies-assertions?): New proc.
        (-anyof-merge-syntax,-anyof-merge-encoding): New procs.
        (-anyof-merge-getter,-anyof-merge-setter): New procs.
        (-anyof-merge-semantics,-anyof-merge-ifield-assertion): New procs.
        (-anyof-merge-subchoices,-anyof-all-subchoices): New procs.
        (-anyof-value-from-derived): New proc.
        (-anyof-all-choices-1,anyof-all-choices): New procs.
        (operand-init!): Create define-anyof-operand reader command.

        * insn (syntax-break-out): Take syntax as argument instead of insn.
        All callers updated.
        (syntax-make): Move here, from ???.

        * types.scm (<bitrange>): Rename accessors from bitrange:foo to
        bitrange-foo. All uses updated.
        (bitrange-next-word): New proc.

        * semantics.scm (-solve-expr-fn,rtx-solve): New procs.

        * rtl.scm (rtx-canonicalize): Provide initial implementation.
        (rtx-make-const,rtx-make-enum): New procs.
        (rtx-arg1,rtx-arg2): Renamed from -rtx-arg[12].  All callers updated.
        (rtx-mem-addr,rtx-mem-sel): New procs.
        (rtx-change-address): New proc.
        (rtx-make-ifield,rtx-make-operand,rtx-make-local): New proc.
        (rtx-make-set,rtx-single-set?): New procs.
        (rtx-combine): New proc.

        * rtl.scm (rtx-traverse): New arg `appstuff'.  All callers updated.
        (rtx-traverse-with-locals): Ditto.
        (-rtx-traverse,-rtx-traverse-*): Ditto.

        * rtl.scm (define-subr): New proc.
        (rtl-init!): Create reader command `define-subr'.

        * cos.c (_object_mi_p): Ensure argument is an object.
        (indent): New function.
        (_object_print_elms): Add pretty-printing support.
        (_object_print): Ditto.

        * hobbit.scm (*reckless-s->c-fun-table*): Add fastcall7.
        (*floats-s->c-fun-table*): Ditto.
        * hobbit.c,hobbit.h: Rebuild.
        * hob-sup.c (fastcall7): New proc.
        * hob-sup.h (fastcall7): Declare.
        * hob-sup.scm (fastcall7): New macro.

        * mach.scm (<arch>): New member subr-list.
        (current-subr-list,current-subr-add!,current-subr-lookup): New procs.
        (arch-finish!): Reverse recorded subr list.

        * read.scm (debug-env): New global.
        (debug-var-names,debug-var,debug-repl-env): New procs.
        (debug-repl): Rewrite.  New arg `env-list'.  All callers updated.
        (debug-quit): Renamed from `continue'.

        * simplify.inc (dsmf): New pmacro.

        * utils.scm (plus-scan): New proc.
        (split-bits): Rewrite.
        (split-value): New proc.

1999-10-13  Doug Evans  <devans@casey.cygnus.com>

        * doc/Makefile.am (DOCFILES): Add notes.texi.
        * doc/Makefile.in: Rebuild.

1999-10-11  Doug Evans  <devans@casey.cygnus.com>

        * ifield.scm (ifld-derived?): New proc.
        (f-derived): New global.
        (ifield-builtin!): Create ifield f-derived.
        (<multi-insn>): New class.
        (multi-insn?): New predicate.
        (multi-insn-instantiate!): New proc.
        (-insn-parse): Create <multi-insn> objects for insns with derived
        ifields.
        (-parse-insn-format-symbol): Handle derived ifields.
        (-parse-insn-format-ifield-spec): New proc.
        (-parse-insn-format-operand-spec): New proc.
        (-parse-insn-format-list): Simplify.
        (-parse-insn-format): No longer allow (ifield-object value) spec.
        (derived-operand-format?): New proc.
        (insn-alias?): New proc.
        (non-alias-insns): Rewrite.
        (insn-real?): Renamed from real-insn?, all callers updated.
        (virutal-insns): Rewrite.
        (multi-insns): New proc.
        * mach.scm (arch-analyze-insns!): Instantiate multi-insns if present.
        * operand.scm (op-ifield): Renamed from op:ifield, all callers updated.
        Return #f if operand doesn't have an index or if index is not an
        ifield.
        (hw-index-anyof): New proc.
        (-operand-parse): Allow integer indices.
        (<derived-operand>): New class.
        (derived-operand?): New predicate.
        (<anyof-operand>): New class.
        (<anyof-value>): New class.
        (-anyof-parse-value,-anyof-operand-parse): New procs.
        (-derived-operand-parse,-derived-operand-read): New procs.
        (define-derived-operand,define-full-derived-operand): New procs.
        (operand-init!): New reader command define-derived-operand.

        * utils.scm (list-take): Handle negative amount.
        (element?): Rewrite.

1999-10-10  Doug Evans  <devans@casey.cygnus.com>

        * dev.scm: quick-utils.scm renamed to ~/.cgenrc.

1999-10-04  Richard Henderson  <rth@cygnus.com>

        * ia64.cpu: Checkpoint.

1999-09-29  Doug Evans  <devans@casey.cygnus.com>

        * sim-cpu.scm (-gen-semantic-fn-table): Virtual insns are always valid.

        * sim.scm (sim-finish!,x-invalid): Always set pc.  Set vpc based on
        default-insn-bitsize.  Pass vpc to sim_engine_invalid_insn.

Wed Sep 29 14:39:39 1999  Dave Brolley  <brolley@cygnus.com>

        * sim.scm (sim-finish!): Don't call sim_io_error for invalid insn. Use
        PC returned by sim_engine_invalid_insn.

1999-09-28  Doug Evans  <devans@casey.cygnus.com>

        * ia32.cpu: New file.

1999-09-25  Doug Evans  <devans@casey.cygnus.com>

        * utils.scm (bit-set?): Fix off by one error.

        * rtl-c.scm (s-sequence): Fix non-void-mode result output.

        * rtl.scm (hw): Check for valid hardware element before trying to
        get its mode.

        * arm.cpu (arm7f cpu): Renamed from arm.  All users updated.
        * arm7.cpu (bx): Fix name of target address operand in assembler spec.
        (*): arm_compute_operand2_foo renamed to compute_operand2_foo.
        * thumb.cpu (*): arm_compute_operand2_foo renamed to
        compute_operand2_foo.

        * cgen-sid.scm (sim_arguments): Add support for building defs.h.
        * sid.scm (-hw-gen-set-quiet-pc): Handle #:delay modifier.
        Call delayed_branch/branch methods instead of assigning to `vpc'.
        (<hw-pc>,cxmake-skip): Call skip method.
        (-gen-hw-selector): Call rtl-c++ instead of rtl-c.
        (<pc>,cxmake-skip): Ditto.
        (-create-virtual-insns!): Ditto.
        (op:read): Call estate-make-for-normal-c++ instead of estate-...-c.
        (op:write): Ditto.
        (op:record-profile): Specify #:output-language "c++".
        * sid-cpu.scm (-gen-insn-attr-decls): Rename @cpu@_insn_attr to
        @arch@_insn_attr.
        (cgen-desc.h): Use @arch@ namespace instead of @cpu@.
        Define enums here.
        (-gen-reg-access-defns): Use rtl-c++ instead of rtl-c.
        (gen-semantic-code): Ditto.
        (-gen-sem-case,-gen-sfrag-code): Ditto.
        (-gen-hardware-types): Delete class @cpu@_cpu_base.
        (cgen-cpu.h): File is now #included by main cpu class, rather than
        subclassing.
        (cgen-defs.h): New proc.
        (-gen-scache-semantic-fn): Change result type to sem_status.
        New local `status'.  Call done_cti_insn/done_insn method at end.
        (cgen-semantics.cxx): Include @cpu@.h instead of @arch@-main.h,
        cgen-ops.h.
        (cgen-sem-switch.cxx): Ditto.
        * sid-decode.scm (-gen-idesc-decls): Update return type of
        @prefix@_sem_fn.
        (cgen-decode.h): Add using namespace @arch@.
        (cgen-decode.cxx): Include @cpu@.h instead of @arch@-main.h.
        
        * rtl-c.scm (<rtl-c-eval-state>): New member output-language.
        (estate-output-language-c?,estate-output-language-c++?): New procs.
        (<rtl-c-eval-state>,vmake!): Handle #:output-language.
        (estate-make-for-normal-rtl-c++): New proc.
        (rtl-c++-parsed,rtl-c++): New proc.
        (s-c-call): Invoke cpu class method if c++.
        (join): Use s-c-raw-call.

        * rtl-c.scm (subword): Don't pass current_cpu to SUBWORD.
        (nop): Rewrite.

        * rtl-c.scm (delay): Mark the sequence as #:delay'd.
        * rtl.scm (<eval-state>): New member `modifiers'.
        (<eval-state>,vmake!): Handle #:modifiers.
        (estate-with-modifiers): New proc.

        * rtl.scm (rtx-side-effects?): New proc.
        (rtx-canonical-bool): Don't change expr if it has side effects.
        * semantics.scm (-simplify-expr-fn): Handle exprs with side-effects
        better.

1999-09-23  Doug Evans  <devans@casey.cygnus.com>

        * sim.scm (gen-scache-type): Fix typo in last patch.

Tue Sep 21 17:12:55 1999  Dave Brolley  <brolley@cygnus.com>

        * sim.scm (gen-scache-type): Add last_insn_p flag for parallel support.

1999-09-05  Doug Evans  <devans@casey.cygnus.com>

        * sid.scm (<hw-pc>,cxmake-skip): New method.
        (<pc>,cxmake-skip): New method.
        
        * decode.scm (decode-build-table): Delete args startbit,index-list.
        All callers updated.
        * utils-sim.scm (gen-decoder): Delete args startbit,index-list.
        All callers updated.
        * sim-decode.scm (-gen-decode-fn): Always pass 0 for startbit
        to decode-get-best-bits.
        * sid-decode.scm (-gen-decode-fn): Ditto.
        
        * hardware.scm (hw-bits): New proc.
        (-hw-parse): New arg layout.  All callers updated.
        (define-full-hardware): New arg layout.  All callers updated.
        (-hw-validate-layout): New proc.
        (-hw-create-[gs]etter-from-layout): New procs.
        (<hw-register>,parse!): Handle layout spec.
        * types.scm (type-bits): New proc.

        * sem-frags.scm (-frag-cost-compute!): Fix calculation of
        UNARY, BINARY, TRINARY rtxs.

        * attr.scm (<enum-attribute>,parse-value): Allow strings.
        * enum.scm (parse-enum-vals): Use reverse! instead of reverse.
        Support '- as "unused spot" indicator.

1999-09-03  Doug Evans  <devans@casey.cygnus.com>

        * pgmr-tools.scm (pgmr-pretty-print-insn-format): Fix typo.

1999-09-02  Doug Evans  <devans@casey.cygnus.com>

        * rtx-funcs.scm (subword): Fix mode spec of `value'.

        * rtl.scm (-rtx-traverse-operands): Fix debugging message
        construction.
        (tstate-make): New arg `depth'.  All callers updated.
        (tstate-depth,tstate-set-depth!): New procs.
        (tstate-incr-depth!,tstate-decr-depth!): New procs.
        (-rtx-traverse-operands): Indent debugging output by traversal depth.
        (-rtx-traverse): Ditto.  Keep track of traversal depth.

1999-09-01  Doug Evans  <devans@casey.cygnus.com>

        * sim-decode.scm (-gen-decoder+supporting cast): Move to utils-sim.scm.
        * sid-decode.scm (-gen-decoder+supporting cast): Ditto.
        * utils-sim.scm: Decoder generator support moved here.
        (-decode-equiv-entries?,-decode-sort-entries): New procs.
        (-gen-decoder-switch): Sort entries for more fall-throughs.

        * Makefile.am (gas-test,sim-test): Specify ISA when invoking cgen.
        * Makefile.in: Rebuild.
        * sim-test.scm (build-sim-testcase): Add logging message.
        * dev.scm (cload): Recognize SIM-TEST application.
        (load-stest): Set APPLICATION to SIM-TEST.

        * desc-cpu.scm (-gen-hash-defines): Add \n to output.

        * ifield.scm (-ifield-parse): Allow bit numbers up to 127.
        * mach.scm (-isa-parse): Allow insn bitsizes from 8 to 128.
        * mode.scm (mode-make-int,mode-make-uint): Allow values up to 64 bits.

        * insn.scm (syntax-break-out): Handle ${foo}.

Sun Aug 29 11:11:15 1999  Doug Evans  <devans@canuck.cygnus.com>

        * Makefile.am (noinst_PROGRAMS,noinst_LIBRARIES): Delete.
        (bin_PROGRAMS): Define.
        (CGEN_HOB_INPUT_FILES): Remove $(srcdir)/.
        (cgen-hob.c): Prepend $(srcdir)/ here.
        (APPDESCFILES,OPCODESFILES,SIMFILES,pkgdata_SCRIPTS): Define.
        (libcpu_a_SOURCES): Delete.
        (cgen_DEPENDENCIES,cgen_LDADD): Rewrite.
        (CGEN_HOB_OBJ,CGENOBJS): New variables.
        * configure.in (LIBS): Replace -Wl,-rpath with -R.
        Add AC_CHECK_LIB(guile,main).
        * Makefile.in: Rebuild.
        * doc/Makefile.in: Rebuild.
        * aclocal.m4: Rebuild.
        * config.in: Rebuild.
        * configure: Rebuild.

1999-08-28  Doug Evans  <devans@casey.cygnus.com>

        Rename rtx functions from name: to name, accept optional leading
        modifier and mode.
        VM -> VOID, DM -> DFLT, use DFLT instead of VM for default mode.
        * attr.scm (-attr-eval): Update.
        * hardware.scm (hw-mode-ok?): Rename arg mode to new-mode-name.
        (<hw-register>,mode-ok?): Disallow VOID.
        (<hw-immediate>,mode-ok?): Disallow VOID.
        (<hw-address>,mode-ok?): Disallow VOID.
        * mode.scm (mode-name?): New proc.
        (VOID): Renamed from VM.
        (DFLT): Renamed from DM.
        (mode-builtin!): Update.
        * opcodes.scm (<ifield>,gen-insert): Update.
        (<ifield>,gen-extract): Update.
        (<multi-ifield>,gen-insert,gen-extract): Update.
        * operand.scm (op:mode): Update.
        (<pc>,make!): Update.
        (op:new-mode): Update.
        (-operand-read): Update.
        * rtl.scm (-rtx-valid-types): Add OPTIONS, EXPLNUMMODE,
        NONVOIDMODE, DFLTMODE.  Rename VMMODE to VOIDMODE.
        (def-rtx-dual-mode,define-rtx-dual-mode): Delete.
        (-rtx-lazy-sem-mode): Renamed from -rtx-mode.  All callers updated.
        (rtx-make): Call -rtx-munge-mode&options.
        (rtx accessors): Rewrite.
        (rtx-pretty-name): Update.
        (-rtx-traverse-*): Update.
        (-rtx-traverse-explnummode,-rtx-traverse-nonvoidmode): New procs.
        (-rtx-traverse-voidmode,-rtx-traverse-dfltmode): New procs.
        (-rtx-make-traverse-table): Update.
        (-rtx-traverse-operands): Update.
        (-rtx-option?,-rtx-option-list?): New procs.
        (-rtx-munge-mode&options): New proc.
        (-rtx-traverse-expr): Call -rtx-munge-mode&options.
        (-rtx-traverse): Update.
        (rtx-traverse,rtx-traverse-with-locals,rtx-compile): Update.
        (rtx-compile-time-constant?): Update.
        (rtx-true?,rtx-false?,rtx-true,rtx-false): Update.
        (rtx-value): Update.
        (hw,reg,mem): Renamed from foo:.  Update.  All callers updated.
        * rtx-funcs.scm (*): Update.
        * rtl-c.scm (rtl-c-get): Update.
        (rtl-c-set-quiet,rtl-c-set-trace): Update.
        (s-c-call,s-c-raw-call): Update.
        (s-boolifop,s-convop,s-if,s-cond): Update.
        (s-case-vm,-gen-non-vm-case-test,s-case): Update.
        (-par-replace-set-dests,-par-replace-set-srcs): Update.
        (s-parallel,s-sequence): Update.
        (rtl-c-build-table): Update.
        * sem-frags.scm (-frag-hash-compute!): Update.
        (-frag-cost-compute!): Improperly handle unary,binary,trinary ops
        for temporary bug compatibility with previous version.
        (-frag-expr-locals,-frag-expr-stmts): Update.
        (-frag-compute-desired-frags,-frag-pick-best): Update.
        * semantics.scm (-simplify-expr-fn): Update.
        (rtx-simplify): Update.
        (-rtx-ref-type): Update.  Account for modifiers.
        (-build-operand!,-build-reg-operand!,-build-mem-operand!): Update.
        (-build-ifield-operand!): Update.
        (-build-known-values): Update.
        (semantic-compile): Update.
        (-gen-reg-access-defns): Update.
        (gen-semantic-code,-gen-sem-case): Update.
        (-gen-sfrag-code,-gen-sfrag-case): Update.
        * sim-cpu (gen-semantic-code): Update.
        * sim.scm (<hw-pc>,gen-write,cxmake-skip): Update.
        (<hw-register>,gen-write,gen-set-macro,cxmake-get-raw): Update.
        (-hw-cxmake-get): Update.
        (<hw-memory>,cxmake-get,gen-set-quiet,gen-write): Update.
        (<hw-index>,cxmake-get): Update.
        (<operand>,gen-type,gen-read,cxmake-get): Update.
        (<operand>,gen-set-quiet,gen-set-trace): Update.
        (<pc>,cxmake-get): Update.
        (sim-finish!): Update.
        * utils-gen.scm (-gen-ifld-extract-base): Update.
        (-gen-ifld-extract-beyond): Update.
        (gen-multi-ifld-extract): Update.
        * sid-decode.scm (-decode-expr-ifield-values-used): Update.
        * sid.scm (<hw-pc>,gen-write): Update.
        (-gen-decode-insn-globals): Update.
        (-hw-cxmake-get): Update.
        (<hw-register>,cxmake-get-raw): Update.
        (<hw-memory>,cxmake-get,gen-set-quiet,gen-write): Update.
        (<hw-index>,cxmake-get): Update.
        (<operand>,gen-type,gen-read,cxmake-get): Update.
        (<operand>,gen-set-quiet,gen-set-trace): Update.
        (<pc>,cxmake-get): Update.
        (-create-virtual-insns!): Update.
        (-decode-split-build-assertion): Update.
        * *.cpu: Update.
        * simplify.inc: Update.

1999-08-20  Doug Evans  <devans@casey.cygnus.com>

        * sim.scm (-op-gen-queued-write): Fix memory address calculation.
        Prefix queue function name with sim_ instead of @cpu@_.

        * sim.scm (-with-parallel-only?): New global.
        (option-init!): Initialize it.
        (option-set!): Set it.
        (with-parallel-only?): New proc.
        * sim-decode.scm (-gen-decode-insn-globals): Don't include parallel
        and writeback markers if with-parallel-only.
        (-gen-idesc-init-fn): Update.
        * sim-cpu.scm (cgen-cpu.h): Don't generate struct parexec if
        with-generic-write.

Wed Aug 18 15:04:30 1999  Doug Evans  <devans@canuck.cygnus.com>

        * sim-cpu.scm (-gen-semantic-fn-table): Handle unsupported insns
        with the invalid insn handler.

        * utils.scm (list-maybe-ref): New proc.

        * mach.scm (-isa-parse): Signal error if isa wasn't specified in
        define-arch.
        (-mach-parse): Signal error if mach wasn't specified in define-arch.

        * i960.cpu (test*-*): Delete `expr' arg.
        (test-op,branch-op): Update.

1999-08-09  Doug Evans  <devans@casey.cygnus.com>

        * sim.scm (gen-reg-getter-fn,gen-reg-setter-fn): New procs.
        (gen-reg-access-decl): Replace `name' arg with `hw'.  All callers
        updated.
        (gen-reg-access-defn): Ditto.
        (-gen-hw-addr): Rewrite.
        (-op-gen-queued-write): Rewrite.
        * sim-cpu.scm (-gen-cpu-reg-access-decls): 
        (-gen-scache-semantic-fn): Handle with-generic-write.
        (-gen-no-scache-semantic-fn): Ditto.

1999-08-08  Doug Evans  <devans@casey.cygnus.com>

        * utils-gen.scm (gen-define-ifmt-ifields): Tweak output.

        * sim.scm (-with-generic-write?): New global.
        (option-init!): Initialize it.
        (option-set!): Set it.
        (with-generic-write?): New proc.
        (-gen-hw-addr): New proc.
        (-op-gen-queued-write): New proc.
        (-op-gen-set-{quiet,trace}-parallel): Use it if with-generic-write?.

        * sim-cpu.scm (-gen-hardware-types): Output code with parallel support
        turned off.
        (-gen-sem-switch): Preserve existing with-parallel? value.
        (-gen-sem-parallel-switch): Ditto.
        (-gen-write-case): Add /indent support.
        (cgen-write.c): Rewrite.

        * utils.scm (-current-print-state): New global.
        (make-print-state): New proc.
        (pstate-indent,pstate-set-indent!): New procs.
        (pstate-cmd?,pstate-cmd-do): New procs.
        (/indent): New global.
        (/indent-set,/indent-add): New procs.
        (string-write): Set -current-print-state.
        (-string-write): New arg pstate, all callers updated.
        Handle print-state commands.
        (-string-list-flatten): New proc.
        (string-list->string): Use it.

        * sim-cpu.scm (-gen-sem-fn-name): Move here from sim-decode.scm.
        (-gen-sem-fn-table-entry): New proc.
        (-gen-semantic-fn-table): New proc.
        (-gen-scache-semantic-fn): Make fn static.
        (-gen-no-scache-semantic-fn): Ditto.
        (cgen-semantics.c): Define macro SEM_FN_NAME.
        * sim-decode.scm (-gen-decode-insn-globals): Delete FMT,TYPE,IDX,
        FAST,FULL.  Update @cpu@_insn_sem contents.
        (-gen-semf-fn-name): Delete.
        (-gen-sem-fn-decls): Delete.
        (-gen-idesc-decls): Output prototypes of @cpu@_sem_init_idesc_table,
        @cpu@_semf_init_idesc_table.
        (-gen-idesc-init-fn): Update.  Don't initialize pointers to semantic
        handlers here.
        (cgen-decode.h): Print sfmt enum.
        * sid-decode.scm (-gen-semf-fn-name): Delete.
        * utils-gen.scm (gen-sfmt-enum-decl): New proc.

        * iformat.scm (sfmt-build): Rename sformats from fmt-foo to sfmt-foo.
        (ifmt-compute!): Ditto.
        * sim-decode.scm (-gen-decoder-switch): Ditto.
        * sid-decode.scm (-gen-decode-expr-entry): Ditto.
        (-gen-decoder-switch): Ditto.
        
        * insn.scm (insn-virtual?): New proc.

        * enum.scm (gen-enum-decl): Speed up, build string as list and then
        convert to string.
        * mach.scm (<arch>): attr-list is now a pair of lists.
        (current-attr-list): Rewrite.
        (current-attr-add!,current-attr-lookup): Rewrite.
        * sim.scm (gen-cpu-insn-enum-decl): Replace append with append!.

1999-08-06  Richard Henderson  <rth@cygnus.com>

        * ia64.cpu: Initial checkpoint.

1999-08-06  Doug Evans  <devans@casey.cygnus.com>

        * pmacros.scm (-pmacro-apply): Fix definition, takes only 1 arg.
        (pmacros-init!): Update .apply help string.

1999-08-03  Doug Evans  <devans@casey.cygnus.com>

        * sim.scm (-hw-gen-set-quiet-pc): Update call to SEM_BRANCH_VIA_CACHE.
        (<hw-pc>,cxmake-skip): New method.
        (<pc>,cxmake-skip): New method.
        (-gen-argbuf-fields-union): Add branch_target to `chain' member.
        (gen-argbuf-type): New member `skip_count'.
        (sim-finish!): Update calls to @cpu@_pbb_cti_chain.
        * utils-cgen.scm (atlist-cti?): Don't include SKIP-CTI insns.

        * utils-sim.scm: New file.
        * dev.scm (load-sim): Load it.
        (load-sid): Load it.
        * cgen-sid.scm: Load it.
        * cgen-sim.scm: Load it.
        * iformat.scm (<sformat>): New member sbuf, not initialized by
        default make.
        * rtx-funcs.scm (skip): Rewrite.
        * rtl-c.scm (skip): Rewrite.
        * m32r.cpu (sc,snc): Update `skip' usage.
        * mode.scm (mode-real-mode): New proc.
        * sem-frags.scm (-frag-split-by-sbuf): Rename from -frag-split-by-sfmt.
        Distinguish fragments by the <sformat-abuf> they use.
        * sim.scm (gen-profile-index-type): Delete.
        (ifield argbuf support): Move to utils-sim.scm and sim-decode.scm.
        (-gen-ifld-decoded-val): Delete, use gen-extracted-ifld-value instead.
        (hardware argbuf support): Move to utils-sim.scm and sim-decode.scm.
        (operand argbuf support): Move to utils-sim.scm and sim-decode.scm.
        (-gen-argbuf-elm): Rewrite.
        (-gen-argbuf-hw-elm): Delete.
        (-gen-argbuf-fields-union): Generate structs for each sbuf instead
        of each sfmt.
        (-sim-sformat-argbuf-list,-sim-insns-analyzed?): New globals.
        (sim-init!): Initialize them.
        (sim-analyze-insns!): Set them.
        (current-sbuf-list): New proc.
        * sim-cpu.scm (-gen-no-scache-semantic-fn): Update calls to
        gen-sfmt-op-argbuf-defns,gen-sfmt-op-argbuf-assigns.
        * sim-model.scm (-gen-model-insn-fn): Ditto.
        * sim-decode.scm (-gen-extract-decls): Delete.
        (-gen-record-argbuf-ifld,-gen-trace-argbuf-ifld): New procs.
        (<hardware-base>,gen-extract,gen-trace-extract): Move here from
        sim.scm.
        (<hw-register,gen-extract,gen-trace-extract): Ditto.
        (<hw-address,gen-extract,gen-trace-extract): Ditto.
        (-gen-op-extract,-gen-op-trace-extract): New procs.
        (gen-sfmt-op-argbuf-defns,gen-sfmt-op-argbuf-assigns): Rename from
        gen-sfmt-argvars-foo and rewrite.
        (-gen-record-args): Rewrite.
        (-gen-extract-case): Tweak.
        * sid.scm (gen-profile-index-type): Delete.
        (ifield argbuf support): Move to utils-sim.scm.
        (-gen-ifld-decoded-val): Delete, use gen-extracted-ifld-value instead.
        (hardware argbuf support): Move to utils-sim.scm and sid-decode.scm.
        (operand argbuf support): Move to utils-sim.scm and sid-decode.scm.
        (-sim-sformat-argbuf-list): New global.
        (sim-init!): Initialize it.
        (sim-analyze-insns!): Set it.
        (current-sbuf-list): New proc.
        * sid-decode.scm (-gen-argbuf-elm): Rewrite.
        (-gen-argbuf-hw-elm): Delete.
        (-gen-argbuf-fields-union): Generate structs for each sbuf instead
        of each sfmt.
        (-gen-record-argbuf-ifld,-gen-trace-argbuf-ifld): New procs.
        (-gen-extract-decls): Delete.
        (<hardware-base>,gen-extract,gen-trace-extract): Move here from
        sid.scm.
        (<hw-register,gen-extract,gen-trace-extract): Ditto.
        (<hw-address,gen-extract,gen-trace-extract): Ditto.
        (-gen-op-extract,-gen-op-trace-extract): New procs.
        (gen-sfmt-op-argbuf-defns,gen-sfmt-op-argbuf-assigns): Rename from
        gen-sfmt-argvars-foo and rewrite.
        (-gen-record-args): Rewrite.
        (-gen-extract-case): Tweak.
        
        * cgen-gh.c (gh_putc,gh_puts): New functions.
        * cgen-gh.h (gh_putc,gh_puts): Declare them.
        * cos.c (_object_print_elms,_object_print): Use them.
        * hob-sup.c (fastcall_print): Use them.
        * configure.in: Check for scm_gen_puts, scm_puts.
        * config.in: Rebuild.
        * configure: Rebuild.
        * aclocal.m4: Rebuild.
        * Makefile.in: Rebuild.

        * dev.scm (load-opc): Use load instead of maybe-load.
        (load-gtest,load-sim,load-stest): Ditto.
        (load-sid): Ditto.
        
1999-07-23  Doug Evans  <devans@casey.cygnus.com>

        * sid-cpu.scm (-gen-sem-switch-engine): Move definition of `count'
        up to avoid g++ 'goto crosses initialization' warning.
        (-gen-sfrag-engine-fn): Delete vpc arg to NEXT_FRAG.
        (-gen-sfrag-case): Update use of NEXT_FRAG.
        
1999-07-22  Doug Evans  <devans@casey.cygnus.com>

        * cos.c (cos_init): Protect _make_x_symbol from garbage collection.

        * read.scm: Load sem-frags.scm.
        * sem-frags.scm (*): Lots rewritten.
        * sid.scm (-with-sem-frags?): New global
        (with-sem-frags?): New proc.
        (option-init!): Initialize -with-sem-frags?.
        (option-set!): Recognize with-sem-frags.
        (sim-init!): Call sim-sfrag-init! if with-sem-frags.
        * sid-cpu.scm (cgen-sem-switch.cxx): Generate semantic frag version
        if asked to.
        (-gen-sfrag-engine-decls): New proc.
        (-gen-sfrag-code,-gen-sfrag-case,-gen-sfrag-enum-decl): New procs.
        (-gen-sfrag-engine-frag-table,-gen-sfrag-engine-fn): New procs.
        (-gen-sfrag-engine): New proc.
        (-gen-sem-case): Emit setup-semantics if specified.
        (-gen-sem-switch-engine): Update init/use of computed goto label.
        * sid-decode.scm (-gen-decode-expr-entry): Fetch ifield values
        from local vars.
        (-gen-idesc-decls): Replace sem_address with cgoto.
        (-gen-scache-decls): Rewrite definition of `execute' member.
        * arm.cpu (arm isa): Enable decode-splits.
        * arm7.cpu (multiply insns): Rename result to mul-result.

        Rename decode-specialize to decode-split.
        * decode.scm (*): Update.
        * insn.scm (*): Update.
        * mach.scm (*): Update.
        * sid.scm (*): Update.
        
1999-07-19  Doug Evans  <devans@casey.cygnus.com>

        Record objects as a smob.
        * cos.c (scm_tc16_object): New static global.
        (cos_init): Initialize it.
        (OBJECT_P,OBJECT_ELEMENTS,OBJECT_CLASS_DESC): Update macros.
        (OBJECT_CLASS,OBJECT_ELEMENT_OFFSET): Update.
        (_object_tag): Delete.
        (_object_make_smob): New function.
        (_object_make_x,_object_make_with_values_x): Rewrite.
        (_object_elements,_object_class_desc): Rewrite.
        (_object_copy,object_p): Rewrite.
        (_object_specialize): Rewrite.
        (_object_print_elms,_object_print): New functions.
        (object_smob): New static global.
        (default_make_x): Use OBJECT_ELEMENT_OFFSET instead of magic number.

        * cos.c (_make_x_symbol): New static global.
        (object_make): Use it.
        (cos_init): Initialize it.

1999-07-15  Doug Evans  <devans@casey.cygnus.com>

        * rtl-c.scm (ifield): Back out last patch, use estate-ifield-var?
        instead to determine whether to use FLD macro.
        (<rtl-c-eval-state>): New member ifield-var?.
        (<rtl-c-eval-state>,vmake!): Recognize #:ifield-var?.
        * utils-gen.scm (-gen-ifld-extract-base): Specify #:ifield-var? #f.
        (-gen-ifld-extract-beyond,gen-multi-ifld-extract): Ditto.

        * rtl.scm (rtx-sequence-assq-locals): New proc.

        * cos.scm (-object-error): Don't crash on non-objects.

        * Makefile.am (CLEANFILES): Add hobbit.
        * Makefile.in: Rebuild.

        * rtl-c.scm (s-c-call): Delete unnecessary code.

1999-07-14  Doug Evans  <devans@casey.cygnus.com>

        * rtl-c.scm (ifield): Always reference value via `FLD'.

        * cos.c (elm_bound_p): Return problem SCM boolean values.

        * utils-cgen.scm (display-argv): New proc.
        * cgen-opc.scm (cgen): Call it.
        * cgen-sim.scm (cgen): Ditto.
        * cgen-gas.scm (cgen): Ditto.
        * cgen-stest.scm (cgen): Ditto.
        * cgen-sid.scm (cgen): Ditto.
        
1999-07-05  Doug Evans  <devans@casey.cygnus.com>

        * opc-asmdis.scm (-gen-parse-switch): New local var `junk'.
        * opc-ibld.scm (-gen-insert-switch): Initialize result to NULL.
        (-gen-extract-switch): Initialize result to 1.
        * opcodes.scm (gen-ifield-default-type): New proc.
        (gen-ifield-value-decl): Renamed from gen-ifield-type.  All callers
        updated.
        (<hw-index>,gen-insert): Handle non-ifield indices.
        (<hw-index>,gen-extract): Ditto.
        (<hw-asm>,gen-parse): Ditto.
        (<hw-asm>,gen-print): Ditto.
        (<keyword>,gen-parse): Ditto.
        (<keyword>,gen-print): Ditto.
        (<operand>,gen-fget): Ditto.
        (<operand>,gen-fset): Ditto.

        * sim.scm (-gen-hw-index-raw): Handle scalar indices.
        (-gen-hw-index): Ditto.
        * sid.scm (-gen-hw-index-raw): Handle scalar indices.
        (-gen-hw-index): Ditto.
        
        * sem-frags.scm: New file.

        * attr.scm (attr-parse): Add better checking of input.

        * hardware.scm (-hw-parse-getter): Renamed from -hw-parse-get.
        All uses updated.
        (-hw-parse-setter): Renamed from -hw-parse-set.  All uses updated.

        * ifield.scm (ifld-nil?): New proc.

        * operand.scm (<operand>): New members getter,setter.
        (<operand>,make!): New args getter,setter.  All uses updated.
        (op:getter,op:setter): New procs.
        (<hw-index>,field-start): Return 0 for non-ifield indices.
        (<hw-index>,field-length): Return 0 for non-ifield indices.
        (-operand-parse-getter,-operand-parse-setter): New procs.
        (-operand-parse): New args getter,setter.  All callers updated.
        Always use hw-index-scalar for scalar operands.
        (-operand-read): Handle getter,setter.
        (define-full-operand): New args getter,setter.  All uses updated.
        * semantics.scm (-build-ifield-operand!): Update.
        (-build-index-of-operand!): Update.
        * sim.scm (<operand>,cxmake-get): If operand has getter, use it.
        * simplify.inc (define-normal-operand): Update.

        * rtl.scm (abs,sqrt,cos,sin,min,max,umin,umax): New rtx fns.
        * rtl-c.scm (s-unop): Indirect fp ops through fpu op vector.
        (s-binop,s-cmpop,s-convop): Ditto.
        (abs,sqrt,cos,sin,min,max,umin,umax): New rtx fns.
        * sparc.cpu (insn-fmt2): Add FPOPS1,FPOPS2.
        (fcc-tests): New insn-enum.
        (fcc-value): Rename from fcc-type.
        * sparcfpu.cpu: New file.  All fp support moved here.

        * rtl.scm (<rtx-func>): New member class.
        (rtx-class-*?): New procs.
        (def-rtx-node): New arg class.  All callers updated.
        (def-rtx-syntax-node,def-rtx-operand-node,def-rtx-dual-node): Ditto.
        * rtx-funcs.scm (*): Specify class.

        * utils-cgen.scm (context-make-reader): New proc.

        * utils.scm (assert-fail-msg): New variable.
        (assert): Use it.
        (list-drop,list-tail-drop): New procs.

1999-06-22  Doug Evans  <devans@casey.cygnus.com>

        * desc-cpu.scm (-gen-hash-defines): Restore generation of
        CGEN_MIN_INSN_SIZE deleted on March 22.

        * ifield.scm (<ifield>,needed-iflds): New method.
        (<multi-ifield>,needed-iflds): New method.
        (ifld-needed-iflds): New proc.
        (multi-ifield?): New proc.
        * iformat.scm (<sfmt>): Delete member ifmt.  New members length,iflds.
        (-sfmt-search-key): Include insn length in key.
        (-sfmt-order-iflds,-sfmt-used-iflds): New procs.
        (<fmt-desc>): Delete members ifmt-key,sfmt-key.  New member used-iflds.
        (-ifmt-lookup-ifmt!): Compute key here.
        (-ifmt-lookup-sfmt!): Compute key here.  Delete arg ifmt.
        All callers updated.
        (ifmt-build): Delete arg desc.  New args search-key,iflds.
        All callers updated.
        (sfmt-build): Delete args desc,ifmt.  New args search-key,cti?,
        in-ops,out-ops,sorted-used-iflds.  All callers updated.
        * minsn.scm (minsn-make-alias): Use insn-set-ifmt!.  Update call
        to ifmt-build.
        * operand.scm (op-iflds-used): New proc.
        * utils-gen.scm (gen-ifld-type): Move here from sim.scm
        and sim-cpu.scm.
        And from sid.scm,sid-cpu.scm as well.
        (gen-ifld-extract-decl,-gen-ifld-extract-base): Ditto.
        (-gen-extract-word,-gen-ifld-extract-beyond): Ditto.
        (gen-ifld-extract,gen-multi-ifld-extract): Ditto.
        (gen-extracted-ifld-value): Ditto.
        (-extract-chunk-specs): Ditto.
        (gen-define-ifields,gen-define-ifmt-ifields): Ditto.
        (-extract-chunk,-gen-extract-beyond-var-list): Ditto.
        (gen-extract-ifields,gen-extract-ifmt-ifields): Ditto.
        (-extract-insert-subfields): New function.
        * sim.scm (gen-record-argbuf-ifld): Renamed from gen-ifld-extract.
        (gen-record-argvar-ifld): Renamed from gen-ifld-extract-argvar.
        * sim-cpu.scm (-gen-extract-ifmt-macro): Replace calls to
        gen-define-ifields with gen-define-ifmt-ifields.  Ditto for
        gen-extract-foo.
        (-gen-no-scache-semantic-fn): Ditto.
        (-gen-sem-case): Ditto.
        (-gen-read-case): Update calls to gen-define-ifields,
        gen-extract-ifields.
        * sim-decode.scm (-gen-record-args): Update.
        (-gen-sfmt-argvars-assigns): Update.
        (-gen-extract-case): Update.
        * sim-model.scm (-gen-model-insn-fn): Replace calls to
        gen-define-ifields with gen-define-ifmt-ifields.  Ditto for
        gen-extract-foo.
        * sid.scm (gen-ifld-argbuf-defn): Use gen-ifld-type.
        (gen-record-argbuf-ifld): Rename from gen-ifld-extract.
        (gen-record-argvar-ifld): Rename from gen-ifld-extract-argvar.
        * sid-decode.scm (-gen-decode-expr-entry): Update calls to
        gen-define-ifields, gen-extract-ifields.
        (-gen-record-args): Update.
        (gen-sfmt-argvars-assigns): Update.
        (-gen-extract-case): Replace calls to gen-define-ifmt-ifields
        with gen-define-ifields.  Ditto for gen-extract-foo.
        (-gen-decode-fn): Use gen-ifld-extract-decl/gen-ifld-extract
        procs rather than method calls.
        
1999-06-18  Doug Evans  <devans@casey.cygnus.com>

        * sid.scm (-create-virtual-insns!): New local `context', pass it
        to insn-read.
        
        * rtl.scm (-rtx-traverse): Output symbol shortcuts in source form,
        (operand name) not (operand object), (local name) not (local object).
        (rtx-traverse-with-locals): New proc.
        (-compile-expr-fn): New proc.
        (rtx-compile): Rewrite.
        * rtl-c.scm (rtl-c-get): Handle operand/local names for src arg.
        (rtl-c-set-quiet): Don't accept operand/local names for dest arg.
        (rtl-c-set-trace): Ditto.
        (operand define-fn): Recognize operand name argument.
        (local define-fn): Recognize sequence temp name argument.
        * rtx-funcs.scm (operand): Argument is operand name, not object,
        so call current-op-lookup.
        (local): Similarily, so call rtx-temp-lookup.

        * rtl.scm (rtx-field?): Use rtx-name instead of car.
        (rtx-operand?): Ditto.
        (rtx-pretty-name): Ditto.
        (rtx-local-obj): Flag symbol argument as an error.
        (rtx-local-name): New proc.
        (rtx-sequence-locals,rtx-sequence-exprs): New procs.

        * rtl.scm (-rtx-traverse-operands): Fix debugging output of arg-types.

        * read.scm (debug-repl): Renamed from -debug-repl.  All callers
        updated.

        * arm7.cpu (do-word/byte-store): Use (trunc: QI rd) rather than
        (and: QI rd #xff).

        * hobbit.scm (*reckless-s->c-fun-table*): Add fastcall4, fastcall6.
        (*floats-s->c-fun-table*): Ditto.
        * hobbit.c,hobbit.h: Rebuild.
        * rtl.scm (-rtx-traverse-expr): Use fastcall6.
        * semantics.scm (rtx-simplify): Use /fastcall-make.

        * iformat.scm (-sfmt-search-key): Don't include memory modes.

        * insn.scm (<insn>): Delete members condition, compiled-condition.
        (<insn>,make!): Update
        (<insn> getters,setters): Update.
        (-insn-parse,insn-read,define-full-insn): Update.
        * minsn.scm (minsn-make-alias): Update.
        * iformat.scm (ifmt-analyze): Delete insn-condition reference.
        (ifmt-compute!): Ditto.
        * sim.scm (sim-finish!): Update.
        * simplify.inc: (define-normal-insn): Update.
        * sid-cpu.scm (gen-semantic-code): Update.
        
        * iformat.scm (-ifmt-lookup-ifmt!): Use insn-set-ifmt!.
        (-ifmt-lookup-sfmt!): Use insn-set-sfmt!.
        (ifmt-compute!): Ditto.

1999-06-16  Doug Evans  <devans@casey.cygnus.com>

        * minsn.scm (minsn-compute-iflds): Print better error message for
        missing ifields.

1999-06-12  Doug Evans  <devans@casey.cygnus.com>

        * rtl.scm (tstate->estate): Don't copy over expr-fn.

        * Makefile.am (HOBFLAGS): New variable.
        (cgen-hob.c): Use it.
        (hobbit.c): Use it.
        (libcpu_a_SOURCES): Add hob-sup.c.
        (hob-sup.o): New rule.
        * Makefile.in: Rebuild.
        * cgen.c: #include hob-sup.h.
        (cgen_init_c): Call hobbit_init_support.
        * hobbit.scm (*fastcall-make*,*c-symbol*): New variables.
        (*special-scm->c-functions*): Add them.
        (display-c-expression): Handle *c-symbol*.
        (*reckless-s->c-fun-table*): Add *fastcall-make*, fastcall5.
        (*floats-s->c-fun-table*): Ditto.
        (normalize): Recognize /fastcall-make.
        (normalize-fastcall-make): New proc.
        * hobbit.c,hobbit.h: Rebuild.
        * hob-sup.scm: New file.
        * hob-sup.c: New file.
        * hob-sup.h: New file.
        * read.scm: Load hob-sup.scm.
        * rtl.scm (-rtx-name-list): New variable.
        (rtx-name-list): New proc.
        (rtx-lookup): Try symbol first.
        (def-rtx-node): Add name to -rtx-name-list.
        (def-rtx-syntax-node,def-rtx-operand-node,def-rtx-macro-node): Ditto.
        (-rtx-traverse-anymode): New proc.
        (-rtx-traverse-{emode,intmode,floatmode,nummode,vmmode}): New procs.
        (-rtx-traverse-{rtx,setrtx,testrtx,condrtx,casertx}): New procs.
        (-rtx-traverse-{locals,env,attrs,symbol,string,number}): New procs.
        (-rtx-traverse-{symornum,object}): New procs.
        (-rtx-make-traverse-table): Rewrite.
        (-rtx-traverse-operands): Rewrite arg-types handling.
        Handle #f result of traverser.
        (-rtx-traverse): Renamed from -rtx-traverse-normal.
        Move debug handling here.
        (-rtx-traverse-debug): Delete.
        (rtl-finish!): Change -rtx-traverse-table into list of handlers
        for each rtx.
        * semantics.scm (semantic-compile:process-expr!): Fix call to
        -rtx-traverse.
        * utils.scm (map1-improper): New proc.

1999-06-08  Doug Evans  <devans@casey.cygnus.com>

        * arm.sim (h-tbit): Replace FUN-ACCESS with FUN-SET.
        (h-mbits): Ditto.
        * sid.scm (-hw-cxmake-get): s/FUN-ACCESS/FUN-GET/.
        (-hw-gen-set-quiet): s/FUN-ACCESS/FUN-SET/.
        (<operand>,cxmake-get): Tweak.
        (sim-finish!): Delete FUN-ACCESS attribute.  Create FUN-GET,FUN_SET.
        
1999-06-07  Doug Evans  <devans@casey.cygnus.com>

        * thumb.cpu (dnti): Delete timing spec.
        (all insn): Update.

        * arm.cpu (arm isa): New fields condition, setup-semantics.
        (thumb isa): New field setup-semantics.
        (h-gr): Add attribute CACHE-ADDR.
        * arm7.cpu (dnai): Delete condition.
        (eval-cond): Delete.

        * mach.scm (<isa>): New member setup-semantics.
        (-isa-parse-setup-semantics): New proc.
        (-isa-parse): New arg setup-semantics.
        (-isa-read): Recognize setup-semantics.

        * sid-cpu.scm (gen-extract-fields): Split into two:
        gen-extract-ifields, gen-extract-ifmt-ifields.
        (-gen-scache-semantic-fn): Delete `taken_p'.  Delete
        tracing begin/end messages (done by caller now).
        (-gen-sem-case): Delete `taken_p'.  Add npc,br_status.  Delete
        tracing begin/end messages (done by x-before,x-after virtual insns).
        (-gen-sem-switch-engine): Redo vpc initialization.  Save vpc at
        end so don't have to look it up again next time.
        * sid-decode.scm (-decode-expr-ifield-values): New proc.
        (-decode-expr-ifield-tracking-key): New proc.
        (-decode-expr-ifield-tracking): New proc.
        (-decode-expr-ifield-values-used): New proc.
        (-decode-expr-ifield-mark-used!): New proc.
        (-gen-decode-expr-set-itype): New proc.
        (-gen-decode-expr-entry): Rewrite.
        (-gen-decode-table-entry): New proc.
        (-gen-decoder-switch): Use it.
        (-gen-virtual-insn-finder): New proc.
        (-gen-argbuf-elm): Move here from sid.scm.
        (-gen-argbuf-hw-elm): Ditto.
        (-gen-argbuf-fields-union): Add entries for chain,before insns.
        (-gen-scache-decls): Add `cond' member to @prefix@_scache for
        conditional-execution isas.
        (-gen-decode-fn): Record conditional-exec ifield.
        * sid.scm (-current-pbb-engine?): New global.
        (current-pbb-engine?,set-current-pbb-engine?!): New procs.
        (<ifield>,gen-ifld-extract): New arg `indent'.
        (<multi-ifield>,gen-ifld-extract): Ditto.
        (-hw-gen-set-quiet-pc): Add pbb support.  Delete `taken_p'.
        (-op-gen-set-trace): Don't print tracing messages for pbb engine.
        (-gen-arch-model-decls): Only scan real insns.
        (scache-engine-insns,pbb-engine-insns): New procs.
        (-create-virtual-insns!): New proc.
        (sim-finish!): Call it.
        (-decode-specialize-insn?): New proc.
        (-decode-specialize-build-assertion): New proc.
        (-decode-specialize-insn-1): New proc.
        (-decode-specialize-insn): New proc.
        (-fill-sim-insn-list!): New proc.
        (sim-analyze!): Create copies of insns to be specialized.
        * utils-cgen.scm (obj-set-name!): New proc.

        * attr.scm (-attr-eval): Rewrite calls to rtx-simplify/rtx-compile.
        * iformat.scm (ifmt-analyze): Pass `insn' to semantic-compile,
        semantic-attrs.
        (ifmt-compute!): Delete arg `arch'.  Result is list of iformats,
        sformats.
        * mach.scm (arch-analyze-insns!): Update call to ifmt-compute!.
        * rtl-c.scm (rtl-c-get): Use DM for default mode instead of VM.
        Avoid infinite loop when rtx-eval-with-estate leaves expr alone.
        (attr): Rewrite test for insn owner.
        (member): New rtx function.
        * rtl.scm (rtx-* accessors): Define as cxr directly rather than
        as separate function.
        (rtx-ifield?,rtx-ifield-name): New procs.
        (rtx-operand-obj): Rewrite.
        (rtx-operand-name): New proc.
        (rtx-cmp-op-mode,rtx-cmp-op-arg): New procs.
        (rtx-number-list-values,rtx-member-value,rtx-member-set): New procs.
        (tstate-make): New args owner, known.  All callers updated.
        (tstate-known-lookup): New proc.
        (rtx-traverse): New arg owner.  All callers updated.
        (rtx-make-bool): New proc.
        (rtl-find-ifields): Rewrite.
        (rtx-simplify,rtx-simplify-eq-attr-{insn,mach}): Moved to ...
        * semantics.scm: ... here.
        (rtx-const-equal,rtx-const-list-equal): New procs.
        (-build-known-values): New proc.
        (semantic-compile): New arg `insn'.  Call rtx-simplify.
        (semantic-attrs): Ditto.
        * rtx-funcs.scm (member,number-list): New rtx functions.

        * attr.scm (attr-remove-meta-attrs-alist): Delete leading '-' in name.
        Rewrite.  Delete arg `all-attrs'. All callers updated.
        (attr-remove-meta-attrs): Delete leading '-' in name.  All callers
        updated.
        * utils-cgen.scm (gen-bool-attrs): Remove meta attrs.

        * decode.scm (subdtable-add): Handle `expr' entries.
        (exprtable-entry-make): Use vector.  Record ifields refered to by expr.
        (exprtable-entry-*): Update.
        (exprtable-entry-iflds): New proc.
        (exprentry-cost): New proc.
        (exprtable-sort,-gen-exprtable-name): New procs.
        (exprtable-make): New arg `name'.  All callers updated.  use vector.
        (exprtable-*): Update.
        (-build-decode-table-entry): Don't issue collision warning if all are
        specialized insns.  Sort exprtable entries before building table.

        * read.scm (-reader-process-expanded-1): Move pretty printing of
        input to logging level 4.

        * utils.scm (string-list->string): New proc.

        * insn.scm (<insn>): Define setters for ifield-assertion, condition,
        semantics.
        (insn-read): Delete leading '-' in name.  All callers updated.
        (real-insn?): New proc.
        (real-insns): Rewrite.
        (insn-has-ifield?): New proc.
        (insn-builtin!): Create insn attribute SPECIALIZED.

        * mach.scm (<arch>): Delete member app-data.
        (current-raw-insn-list): New proc.
        (insn-list-car,insn-list-splice!): New procs.
        (<decode-specialize>): New class.
        (-isa-parse-decode-specialize): New proc.
        (-isa-parse-decode-specializes): New proc.
        (<isa>): New members `condition', `decode-specializes'.
        (-isa-parse-condition): New proc.
        (-isa-parse): New args condition, decode-specializes.
        (-isa-read): Recognize condition, decode-specializes.
        (-isa-add-decode-specialize!): New proc.
        (modify-isa): New proc.
        (isa-conditional-exec?,state-conditional-exec?): New procs.
        (arch-init!): New reader command `modify-isa'.

        * mode.scm (mode-class-signed?,mode-class-unsigned?): New procs.
        (mode-signed,mode-unsigned?): New procs.

Thu Jun  3 16:00:40 1999  Doug Evans  <devans@canuck.cygnus.com>

        * types.scm (<array>): New method get-shape.
        * hardware.scm (<hardware-base>): Forward get-shape,get-num-elms
        onto type.
        (hw-shape,hw-num-elms): New procs.
        * sim.scm (<hw-register>,gen-profile-index-type): Use "unsigned short"
        if there's more than 255 registers.
        * sid.scm (<hw-register>,gen-profile-index-type): Ditto.
        
        * hardware.scm (-hw-parse): Flag as error CACHE-ADDR specified
        with get/set specs.

1999-05-21  Doug Evans  <devans@casey.cygnus.com>

        * cgen-sid.scm (sim-arguments): Add -X.
        * sid-cpu.scm (-gen-hardware-types): Comment out scache vars.
        (-gen-all-semantic-fns): Don't include PBB support virtual insns.
        (-gen-sem-case): Use CASE/NEXT macros again.  Tweak indenting.
        Simplify by supporting pbb engine only.
        (-gen-sem-switch-init): New proc.
        (-gen-sem-switch-engine): Rename from -gen-sem-switch-fn.
        (cgen-sem-switch.cxx): New proc.
        * sid-decode.scm (-gen-decode-insn-globals): Replace with-sem-switch?
        with with-pbb?.  Support dual scache/pbb engines.
        (-gen-idesc-decls): Replace with-sem-switch? with with-pbb?.
        Support dual scache/pbb engines.
        (cgen-decode.h): Generate semantic fn decls if with-scache?.
        * sid.scm (*) with-pbb? replaces with-sem-switch?.
        (sim-finish!): Create pbb support virtual insns if with-pbb?.

1999-05-10  Ben Elliston  <bje@cygnus.com>

        * arm7.cpu: Remove coprocessor related fields, operands and insn
        definitions for now. Take the undefined instruction trap instead.
        (ldmda-wb): New instruction.
        (ldmib-wb): Likewise.
        (ldmdb-wb): Likewise.
        (stmdb-wb): Likewise.
        (stmib-wb): Likewise.
        (stmda-wb): Likewise.

1999-05-08  Doug Evans  <devans@casey.cygnus.com>

        * sid.scm (<hw-memory>,cxmake-get): Call GETMEM method, not function.
        (<hw-memory>,gen-set-quiet): Call SETMEM method, not function.
        
        * utils-cgen.scm (keyword-list->arg-list): Fix call to substring,
        hobbit can't handle optional third arg.

1999-05-07  Doug Evans  <devans@casey.cygnus.com>

        * arm.cpu (h-tbit): Delete set spec.
        (h-mbits): Don't call arm_mbits_set in set spec.
        * arm.sim: New file.
        * hardware.scm (modify-hardware): New proc.
        (hardware-init!): Add modify-hardware command.
        * sid.scm (-hw-cxmake-get): Use method call if FUN-ACCESS specified.
        (-hw-gen-set-quiet): Ditto.
        (sim-finish!): Call invalid_insn method.  Define FUN-ACCESS builtin
        hardware attribute.  Load $arch.sim file if present.
        * utils-cgen.scm (keyword-list?): New proc.
        (keyword-list->arg-list,arg-list-validate-name): New procs.
        (arg-list-check-no-args,arg-list-symbol-arg): New procs.

        * arm7.cpu (eval-cond): Pass pc to @cpu@_eval_cond handler.

        * sid-cpu.scm (-gen-hardware-types): Rename @cpu@_cpu to
        @cpu@_cpu_cgen.
        
        * attr.scm (obj-prepend-atlist!): New proc.

        * opc-opinst.scm (cgen-opinst.c): Analyze instructions if necessary.

        * sid.scm (<operand>,profilable?): Use op:type.
        * sim.scm (<operand>,profilable?): Use op:type.

1999-05-04  Doug Evans  <devans@casey.cygnus.com>

        * utils.scm (find-index,find): Be more stack friendly.

        * arm7.cpu (arith-imm-op): Compute pc before setting cpsr.
        (bic-imm): Ditto.

1999-05-01  Doug Evans  <devans@casey.cygnus.com>

        * arm.cpu (h-gr-usr): New hardware element.
        (h-gr-fiq,h-gr-svc,h-gr-abt,h-gr-irq,h-gr-und): New hardware elements.
        (arm-mode): New keyword.
        (h-mbits): Add set spec.
        (h-spsr): Implement get/set specs.

        * read.scm: Load slib/pp.scm, slib/genwrite.scm.
        (-reader-process-expanded-1): Pretty print logging output.

        * sid-cpu.scm (-gen-reg-access-defns): Make getters `const'.
        (cgen-cpu.h): Print enums before hardware elements.
        (cgen-semantics.cxx): @arch@-cgen.h renamed to @arch@-main.h.
        * sid-decode.scm (cgen-decode.cxx): Ditto.
        * sid-model.scm (cgen-model.cxx): Ditto.
        
        * utils-cgen.scm (context-error): Accept variable number of
        trailing args.

        * rtx-funcs.scm (error:): New rtx function.
        * rtl-c.scm (s-case-vm): New proc.
        (-gen-non-vm-case-get,s-case-non-vm): New procs.
        (s-case): Simplify, handle non-VM result.
        (error:): New rtx function.

1999-04-30  Doug Evans  <devans@casey.cygnus.com>

        * arm.cpu (h-pc): Add set spec to zero bottom bits.
        (test-hi,test-ls): Fix cbit handling.
        (shift-type,h-operand2-shifttype): Move here ...
        * arm7.cpu: ... from here.
        (set-cond,set-cond-maybe,dnix): Delete, unused.
        (set-zn-flags,set-logical-cc,set-add-flags,set-sub-flags): Move ...
        * arm.cpu: ... to here.
        * thumb.cpu (cmp,alu-cmp): Use set-sub-flags.
        (alu-cmn): Use set-add-flags.
        (alu-tst): Use set-zn-flags.
        (alu-cmp): Use set-sub-flags.
        (lsl,lsr,asr): Set condition codes.
        (add,addi,sub,subi,mov,addi8,subi8): Ditto.
        (alu-op): Split into three: alu-logical-op,alu-arith-op,
        alu-shift-op.
        (hireg-op): Split sem-fn into lo-dest-sem-fn,hi-dest-sem-fn.
        All callers updated.
        (sub-sp): Rename from add-sp-neg.
        (f-lbwl-offset): Delete.
        (f-lbwl-hi,f-lbwl-lo): New ifields.
        (lbwl-hi,lbwl-lo): Update.
        (bl-hi): Add 4 to pc.
        (push-reg,pop-reg): Simplify.
        (push,push-lr): Push registers in correct order.
        (pop,pop-pc): Pop registers in correct order.
        (save-reg-inc,load-reg-inc): Simplify.
        (ldmia): Save registers in correct order.

1999-04-30  Ben Elliston  <bje@cygnus.com>

        * arm7.cpu (f-op-hdt): Remove; unused.
        (f-ror-imm8-value,f-ror-imm-rotate): New fields.
        (f-ror-imm8): New multi-ifield.
        (f-operand2-bit7): Remove; use the generic `f-bit7' instead. All
        callers updated.
        (f-uimm12): New field.
        (ror-imm8): New operand.
        (uimm12): Likewise.
        (hdt-offset8): Reinstate operand.
        (offset4-hi,offset4-lo): Remove.
        (set-cond): Remove macro; unused.
        (set-cond-maybe): Likewise.
        (load-word/byte): Use uimm12 operand for a true 12-bit immediate.
        (store-word/byte): Likewise.
        (load-halfword): Use hdt-offset8 multifield operand instead of two
        4-bit operands that are explicitly combined by semantic code.
        (do-halfword-store): Bug fix. Set address when not preindexing.
        (store-halfword): Also use hdt-offset8 operand.
        (arith-op): Avoid clobbering source registers when one of them is
        the destination register.
        (arith-imm-op): Likewise.
        (tst-imm): Use ror-imm8 operand. Handle special case of rot 0.
        (teq-imm): Likewise.
        (ldm-p): Rename to ldmdb.
        (stm-pw): Rename to stmdb-wb.
        (multi-action): New macro; test reg-list bits and execute a
        semantic fn if the bit is set.
        (ldmda,ldmib,ldmia,ldmia-wb,ldmdb): New multiple load insns.
        (stmdb,stmib,stmia,stmia-wb,stmda,stmdb-wb): Store insns.
        (all insns): Use dnai entries for simplicity rather than dni.
        (*): Use short-form of (const ..).

1999-04-29  Doug Evans  <devans@casey.cygnus.com>

        * rtl.scm (<rtx-func>): Rename member type to style.  Rename
        member eval to evaluator.
        (rtx-foo accessors): Rename from rtx:foo.  All callers updated.
        (tstate-make): Delete arg op-fn.  All callers updated.
        (tstate-op-fn,tstate-set-op-fn!): Delete.
        (rtx-traverse): Delete op-fn arg.  All callers updated.
        * semantics.scm (-simplify-for-compilation-process-expr): New proc,
        split out of -simplify-for-compilation.

        * Makefile.am (CGEN_NONHOB_FILES,CGENFILES): New variables.
        (cgen_DEPENDENCIES): Add stamp-cgen.
        (stamp-cgen): New rule.
        * Makefile.in: Rebuild.

        * rtl-c.scm (enum:): Define emitter for.
        * rtl.scm (rtx-constant?): Rename from rtx-const? and check for
        enums as well.
        (rtx-constant-value,rtx-enum-value): New procs.
        (-rtx-traverse-normal): Expand enum-value to (enum enum-value).
        (rtx-compile-time-constant?): Return #t for enums.
        (rtx-true?,rtx-false?): Handle enums.
        (rtx-simplify-eq-attr-mach): Use rtx-true,rtx-false instead of
        building result by hand.
        (rtx-simplify-eq-attr-insn): Ditto.
        * rtx-funcs.scm (enum:,enum): New rtx functions.

        * mach.scm (<arch>): New members insns-analyzed?, semantics-analyzed?,
        aliases-analyzed?.
        (arch-analyze-insns!): New proc.
        * opcodes.scm (opcodes-analyze!): Call arch-analyze-insns! instead
        of calling ifmt-compute! directly.
        * sid.scm (-sim-insns-analyzed?): Delete.
        (sim-analyze!): Call arch-analyze-insns! instead of calling
        ifmt-compute! directly.
        * sim.scm (-sim-insns-analyzed?): Delete.
        (sim-analyze!): Call arch-analyze-insns! instead of calling
        ifmt-compute! directly.

        * utils.scm (string-take-with-filler): New proc.
        (string-take): Use it.

        * pgmr-tools.scm: New file.
        * read.scm: Load it.
        * insn.scm (pretty-print-insn-format): Move to pgmr.scm.

        * insn.scm (insn-base-mask): Renamed from insn:mask.
        All callers updated.
        (insn-base-mask-length): Renamed from insn:mask-length.
        All callers updated.
        (insn-foo): Renamed from insn:foo.  All callers updated.
        * minsn.scm (minsn-foo): Renamed from minsn:foo.  All callers updated.
        * iformat.scm (compute-insn-base-mask-length): Renamed from
        compute-insn-mask-length.  All callers updated.
        (compute-insn-base-mask): Renamed from compute-insn-mask.
        All callers updated.

        * enum.scm (-enum-parse-prefix): New proc.
        (<enum>,make!): Don't parse enum values here.
        (-enum-parse): Do it here.  Call -enum-parse-prefix.
        (define-full-insn-enum): Ditto.
        (enum-vals-upcase): New proc.
        * hardware.scm (define-keyword): Make enum prefix uppercase.
        * hobscmif.h (CHAR_LOWERP,CHAR_UPPERP,CHAR_WHITEP): New macros.

        * ifield.scm (<ifield>,field-mask): Allow container to be #f.
        (<ifield>,field-extract): New method.
        (<multi-ifield>,field-extract): New method.
        (ifld-extract): New proc.
        * opcodes.scm (ifld-insert-fn-name): Renamed from ifld-insert.
        (ifld-extract-fn-name): Renamed from ifld-extract.

        * ifield.scm (ifld-new-value): Renamed from ifield-make.
        All callers updated.

        * ifield.scm (ifld-lsb0?): New proc.
        (sort-ifield-list): New arg up?.  All callers updated.
        * iformat.scm (compute-insn-mask): Get lsb0? flag from argument,
        rather than global state.

1999-04-27  Doug Evans  <devans@casey.cygnus.com>

        * insn.scm (pretty-print-insn-format): New proc.

        * Makefile.in: Rebuild.
        * aclocal.m4: Rebuild
        * configure: Rebuild.

Mon Apr 26 10:30:18 1999  Doug Evans  <devans@canuck.cygnus.com>

        * configure.in (AM_INIT_AUTOMAKE): Update version to 0.7.2.
        * configure: Rebuild.
        * aclocal.m4: Rebuild.
        * Makefile.in: Rebuild.
        * doc/Makefile.in: Rebuild.
        * doc/version.texi: Rebuild.

1999-04-25  Doug Evans  <devans@casey.cygnus.com>

        * utils.scm (bits->bools): New proc.

1999-04-23  Doug Evans  <devans@casey.cygnus.com>

        * sid.scm (<multi-ifield>,gen-ifld-extract-decl): Fix call to
        subfield's gen-ifld-extract-decl method.

1999-04-23  Ben Elliston  <bje@cygnus.com>

        * arm7.cpu (ldrsh-pu): Remove.
        (do-halfword-load): New pmacro.
        (load-halfword): Likewise.
        (do-halfword-store): Likewise.
        (store-halfword): Likewise.
        (strh-*): New instructions.
        (ldrsb-*): Likewise.
        (ldrh-*): Likewise.
        (ldrsh-*): Likewise.

1999-04-22  Doug Evans  <devans@casey.cygnus.com>

        * ifield.scm (ifld-constant?): Delete special handling of RESERVED
        fields.

        * arm7.cpu (do-word/byte-store): Fix typo.

1999-04-22  Ben Elliston  <bje@cygnus.com>

        * arm7.cpu (do-word/byte-load): Handle cases where the destination
        register is the program counter (R15).

        * arm7.cpu (do-word/byte-store,store-word/byte): New pmacros.
        (str-*): Implement using store-word-byte. Remove older versions.
        (bic): Use the `inv' rtx for obtaining bitwise complements.
        (bic-imm): Likewise.
        (mvn): Likewise.
        (mvn-imm): Likewise.
        (store-indev-reg): Remove crufty pmacro.
        (load-indiv-reg): Likewise.
        (ldm-p): Reverse the order of register processing for decrement.
        (stm-p): Likewise.
        (stbi): Remove; handled by the str-* insns.
        
1999-04-21  Doug Evans  <devans@casey.cygnus.com>

        * thumb.cpu (cmp): Fix carry bit computation.
        (alu-cmp): Ditto.

1999-04-20  Doug Evans  <devans@casey.cygnus.com>

        * arm.cpu (h-tbit): Specify set spec.
        (h-cpsr): Ditto.
        * arm7.cpu (bx): Don't call C routine, just set h-tbit.
        (set-sub-flags): Interpret "carry bit" as a borrow.
        (all sub/cmp insns): Carry bit is actually a borrow bit.
        * thumb.cpu (bx-rs,bx-hs): Don't call C routine, just set h-tbit.
        (add-carry,sub-carry,thumb-neg,thumb-bic,thumb-inv): Delete.  Use
        .pmacro instead.
        (hireg-add,hireg-cmp,hireg-move): Ditto.

        * read.scm (-CGEN-VERSION): Change version to 0.7.2.
        (-CGEN-LANG-VERSION): Ditto.

1999-04-18  Doug Evans  <devans@casey.cygnus.com>

        * pmacros.scm (-pmacro-make): New arg `default-values',
        all callers updated.
        (-pmacro-default-values): New proc.
        (-pmacro-process-keyworded-args): New proc.
        (-pmacro-process-args): New proc.
        (-pmacro-invoke): Process arguments before expanding macro.
        (-pmacro-get-arg-spec,-pmacro-get-default-values): New procs.
        (define-pmacro): Handle default values specified in arg list.
        * rtl.scm (rtx-alu-op-mode,rtx-alu-op-arg): New procs.
        (rtx-boolif-op-arg[01]): New procs.
        (rtx-true,rtx-false,rtx-canonical-bool): New procs.
        (rtx-simplify): Handle not,orif,andif.
        * semantics.scm (-simplify-for-compilation): Simplify not,orif,andif.
        * utils.scm (alist-copy): New proc.
        * arm7.cpu (do-word/byte-load,load-word/byte): New pmacros.
        (ldr*): Rewrite.
        (swi): Explicitly set pc.

        * thumb.cpu (bx-rs,bx-hs): Reverse test for switch to arm mode.

1999-04-17  Ben Elliston  <bje@cygnus.com>

        * arm7.cpu (ldr-pu): Do not add 8 to R15; the step() method
        correctly adjusts the program counter now.

        * arm7.cpu (f-halfword?): Rename from `f-hdt-halfword?'.
        (f-signed?): Rename from `f-hdt-signed?'.
        (f-offset4-hi): Rename from `h-hdt-off4-ms'.
        (f-offset4-lo): Rename from `h-hdt-off4-ls'.
        (f-hdt-offset8): Use new field names.
        (ldr): Use `imm12' field, not `offset12', since we do our own
        address arithmetic.
        (str, str-*): Likewise.
        (ldu-*): Remove most; better not implemented than broken.
        (ldrh*): Likewise.
        (ldrsh-pu): New insn.
        (stri): Likewise.
        (stri-p): Likewise.
        (stbi): Likewise.
        (ldm-p): Likewise; replace (load-indiv-reg) version.

1999-04-15  Doug Evans  <devans@casey.cygnus.com>

        * arm.cpu (h-pc): Delete VIRTUAL attribute, get/set specs.
        * arm7.cpu (*): Fix mode of result of arm_compute_carry_out_*.
        (*): Explicitly specify mode in c-call.
        (logical-op): Recognize sets of h-gr[15] as sets of pc.
        (arith-op): Ditto.
        (and-imm,orr-imm,xor-imm,mov-imm,bic-imm,mvn-imm): Ditto.
        (arith-imm-op): New pmacro.
        (add-imm,adc-imm,sub-imm,sbc-imm,rsb-imm,rsc-imm): Use it.
        * thumb.cpu (bx-rs,bx-hs): Rewrite.

1999-04-14  Doug Evans  <devans@casey.cygnus.com>

        * rtl.scm (rtx-simplify-eq-attr-insn): Fix call to context-error.

        * rtl.scm (rtl-find-ifields): Implement.

        * utils-gen.scm: New file.
        * read.scm: Load it.
        * desc.scm: Move generic attribute code to utils-gen.scm.
        * Makefile.am (CGEN_HOB_INPUT_FILES): Add it.
        * Makefile.in: Rebuild.

        * arm7.cpu (R15-OFFSET): New attribute.
        (dnai): New pmacro.
        (logical-op): Delete arg `result?'.  All callers updated.  Use dnai.
        Delete use of eval-cond (dnai specifies it).  Specify R15-OFFSET of 12
        for reg-shift version.
        (arith-op): Ditto.
        (data processing insns): Reorganize.  Use dnai.

        * attr.scm (attr-kind): New proc.
        (attr-list-enum-list): Rewrite.
        (-attr-sort): Split result into two lists, bools and non-bools.
        (current-attr-list-for): Update.

        * cgen-sid.scm (sim-arguments): Add -H -> build desc.h file.
        * sid-cpu.scm (-gen-attr-decls): New proc.
        (-gen-insn-attr-decls): New proc.
        (cgen-desc.h): New proc.
        (cgen-cpu.h): Put everything in @cpu@ namespace.
        (gen-parallel-exec-type): Change prefix of parexec struct from
        @cpu@ to @prefix@.
        (-gen-trace-record-type): Ditto for trace_record struct.
        (-gen-write-case): Update.
        (-gen-scache-semantic-fn): Change function prefix from @cpu@ to
        @prefix@.  Update scache struct references.
        (-gen-sem-case): Update scache struct references.
        (-gen-sem-switch-fn): Update idesc struct reference.
        Update insn_type enum reference.
        (cgen-write.cxx): Update scache,argbuf references.
        (cgen-semantics.cxx): Simplify namespace choice (always @cpu@).
        * sid-decode.scm (IDESC-TABLE-VAR): Change prefix of insn_data
        from @cpu@ to @prefix@.
        (-gen-decode-insn-entry): Use gen-cpu-insn-enum.
        (-gen-decode-expr-entry): Ditto.  Change prefix of INSN_X_INVALID
        from @CPU@ to @PREFIX@.
        (-gen-decoder-switch): Change prefix of INSN_X_INVALID
        from @CPU@ to @PREFIX@.
        (-gen-decode-insn-globals): Generate insn attributes.
        (-gen-sem-fn-name): Change function prefix from @cpu@ to @prefix@.
        (-gen-sem-fn-decls): Use -gen-sem-fn-name.  Add `using' for
        semantic fn typedef.
        (-gen-idesc-decls): Simplify cpu class name (always @cpu@_cpu).
        Change prefix of scache struct from @cpu@ to @prefix@.
        Change prefix of semantic fn typedef from @cpu@ to @prefix@.
        Change prefix of idesc struct from @cpu@ to @prefix@.
        Change prefix of insn_type enum from @cpu@ to @prefix@.
        (-gen-argbuf-fields-union): Change prefix of sem_fields union
        from @cpu@ to @prefix@.
        (-gen-scache-decls): Change prefix of scache struct from
        @cpu@ to @prefix@.  Update idesc struct name.
        Update decode,execute methods.
        (-gen-extract-case): Update to type name changes.
        (-gen-decode-fn): Ditto.
        (cgen-decode.h): Put everything in @cpu@ namespace (except
        semantic fn decls).  Change prefix of insn_word from @cpu@ to @prefix@.
        (cgen-decode.cxx): Add using namespace @cpu@.
        * sid-model.scm (-gen-hw-profile-decls): Change prefix of
        model_mark_get/set from @cpu@ to @prefix@.
        (gen-model-unit-fn-name): Change function prefix from @cpu@ to
        @prefix@.
        (gen-model-fn-decls): Update idesc struct name.  Change prefix
        of model_insn_before/after from @cpu@ to @prefix@.
        (-gen-model-insn-fn): Update scache/idesc/argbuf struct names.
        Update insn_word type name.
        (-gen-model-timing-table): Update INSN_TIMING struct name.
        (-gen-model-init-fn): Update MODEL_DATA struct name.
        (-gen-mach-defns): Update name of init_idesc_table fn.
        (cgen-model.cxx): Add using namespace @cpu@.
        * sid.scm (gen-cpu-class): Delete.
        (gen-attr-type): New proc.
        (gen-obj-attr-sid-defn): New proc.
        (<operand>,gen-profile-code): Update name of model_mark_get/set fn.
        (gen-cpu-insn-enum-decl): Change prefix of insn_type enum from
        @CPU@ to @PREFIX@.
        (gen-cpu-insn-enum): Update name of insn enum.
        * thumb.cpu (bx-rs): Rename @cpu@_do_bx to @prefix@_do_bx.
        (bx-hs): Ditto.
        (swi): Rename @cpu@_swi to @prefix@_swi.

        * decode.scm (-build-decode-table-entry): Remove heuristic for
        distinguishing insns, and use insn ifield-assertion specs.

        * desc-cpu.scm (gen-A-attr-mask): Simplify.
        (gen-ifld-defns): Boolean attributes begin at number 0 now.
        (gen-hw-table-defns,gen-operand-table,gen-insn-table): Ditto.
        * opc-itab.scm (-gen-macro-insn-table): Ditto.
        * utils-cgen.scm (gen-attr-enum-decl): Change type arg to prefix,
        all callers updated.
        (gen-attr-name): New proc
        (gen-attr-mask): Use it.  Boolean attributes start at 0 now.
        (gen-obj-attr-defn): Delete num_nonbools count.

        * iformat.scm (ifmt-analyze): Handle insn-condition.
        (ifmt-compute!): Ditto.
        * insn.scm (<insn>): Specify default value for condition,
        post-cond-trap,compiled-condition,compiled-semantics.
        (<insn>,make!): New arg condition.
        (<insn>): Add getters for condition,compiled-condition.
        (-insn-parse): New arg condition, all callers updated.
        (-insn-read): Recognize condition spec.
        (define-full-insn): New arg condition.
        * minsn.scm (minsn-make-alias): Update call to (make <insn> ...).
        * semantics.scm (semantic-compile): Change arg sem-code to
        sem-code-list.
        (semantic-attrs): Ditto.
        * sim.scm (sim-finish!): Update calls to define-full-insn.
        * simplify.inc (define-normal-insn): Update call to define-full-insn.
        * sid-cpu.scm (gen-semantic-code): Handle insn-condition.
        * sid.scm (sim-finish!): Update call to define-full-insn.
        
Tue Apr 13 17:04:34 1999  Doug Evans  <devans@canuck.cygnus.com>

        * Makefile.am (sim-cpu): Allow specification of ISA.
        * Makefile.in: Rebuild.

Sun Apr 11 00:37:56 1999  Jim Wilson  <wilson@cygnus.com>

        * i960.cpu (sll-expr, srl-expr, sra-expr): Handle large shift counts.

1999-04-10  Doug Evans  <devans@casey.cygnus.com>

        * sparccom.cpu (check-fp-enable): Wrap TRAP32_FP_DIS in c-code.

        * arm.cpu (gr-names): Put pc first so it gets prefered in disassembly.

        * attr.scm (atlist?): New proc.
        (-attr-eval): Rewrite.
        (attr-parse): New proc.
        (atlist-parse): Use it.

        * decode.scm (exprtable-entry-make): New proc.
        (exprtable-entry-insn,exprtable-entry-expr): New procs.
        (exprtable-make,exprtable-insns): New procs.

        * hardware.scm (hw-mode-ok?): Delete argument `set?'.
        All uses updated.
        (hardware-builtin!): Make h-memory a vector.

        * iformat.scm (ifmt-ifields): Renamed from ifmt-fields.
        All callers updated.
        (ifmt-analyze): Use csem-* accessors on result of semantic-compile.

        * insn.scm (<insn>). Rename ifld-assertions to ifield-assertion.
        All uses updated.
        (-insn-parse): Set semantics to #f if not specified.
        (define-insn,define-full-insn): Take out code that ignores ALIAS's
        if simulator.
        (-parse-insn-format): Recognize `=' iformat spec.

        * mach.scm (isa-min-insn-bitsize): Ignore ALIAS's.
        (isa-max-insn-bitsize): Ditto.

        * opcodes.scm (<ifield>,gen-insert): Call rtl-c instead of
        rtl-c-with-alist.
        (<ifield>,gen-extract): Ditto.
        (<multi-ifield>,gen-insert,gen-extract): Ditto.
        * sid-cpu.scm (-gen-reg-access-defns): Ditto.
        (gen-define-ifmt-ifields): New proc.
        (gen-semantic-code): Rewrite.
        * sid-decode.scm (-gen-decode-expr-entry): New proc.
        (-gen-decoder-switch): Handle expression tables.
        (-gen-extract-case): Call gen-define-ifmt-ifields instead of
        gen-define-fields.
        * sid-model.scm (-gen-model-insn-fn): Call gen-define-ifmt-ifields
        instead of gen-define-fields.
        * sid.scm (<ifield>,gen-ifld-extract-decl): New arg `indent', all
        callers updated.
        (<multi-ifield,gen-ifld-extract-decl): Ditto.
        (-gen-ifld-extract-base): Call rtl-c instead of rtl-c-with-alist.
        (-gen-ifld-extract-beyond): Ditto.
        (<multi-ifield>,gen-ifld-extract): Ditto.
        (<*>,cxmake-get,gen-set-quiet,gen-set-trace,gen-write): Update to new
        rtl evaluation code.
        (op:read): Build an <eval-state> to pass to gen-read.
        (op:write): Build an <eval-state> to pass to gen-write.
        (op:record-profile): Build an <eval-state> to pass to
        gen-record-profile.
        * sim-cpu.scm (gen-semantic-code): Rewrite.
        * sim.scm (-gen-ifld-extract-base): Call rtl-c instead of
        rtl-c-with-alist.
        (-gen-ifld-extract-beyond): Ditto.
        (<multi-ifield>,gen-ifld-extract): Ditto.
        (<hw-register>,gen-get-macro,gen-set-macro): Ditto.
        (<*>,cxmake-get,gen-set-quiet,gen-set-trace,gen-write): Update to new
        rtl evaluation code.
        (op:read): Build an <eval-state> to pass to gen-read.
        (op:write): Build an <eval-state> to pass to gen-write.
        (op:record-profile): Build an <eval-state> to pass to
        gen-record-profile.

        * operand.scm (<operand>): Give `selector' default value of #f.
        Give `num' default value of -1.  Give `cond?' default value of #f.
        (op:new-mode): Delete arg `set?', all uses updated.

        * read.scm (reader-error): Handle #f return from port-filename.
        (-init-parse-cpu!): Call rtl-c-init!.
        (reader-install-builtin!): Call rtl-builtin!.

        * rtl-c.scm: New file.
        * semantics.scm: New file.
        * read.scm: Load them.
        * rtl.scm: C generation moved to rtl-c.scm.  Semantic analysis moved
        to semantics.scm.
        (<rtx-func>): Delete members syntax?,macro,c,expr.  New members
        type,eval,num.
        (rtx-lookup): Renamed from -rtx-func-lookup.  All callers updated.
        (-rtx-num-text,-rtx-max-num): New globals.
        (def-rtx-operand-node,define-rtx-operand-node): New procs.
        (-rtx-macro-lookup): New proc.
        (rtx-lvalue-mode-name): Renamed from rtx-expr-mode-name.
        (rtx-env-stack-empty?,rtx-env-stack-head): New procs.
        (rtx-env-var-list,rtx-env-empty-stack,rtx-env-init-stack1): New procs.
        (rtx-env-make,rtx-env-empty?,rtx-env-make-locals): New procs.
        (rtx-env-push,rtx-temp-lookup,-rtx-closure-make): New procs.
        (rtx-make,rtx-kind?,rtx-const?,rtx-const-value,rtx-symbol-name,
        rtx-operand?,rtx-operand-obj,rtx-local?,rtx-local-obj, rtx-xop-obj,
        rtx-index-of-value,rtx-if-mode,rtx-if-test,rtx-if-then,rtx-if-else,
        rtx-eq-attr-owner,rtx-eq-attr-attr,rtx-eq-attr-value): New procs.
        (rtx-pretty-name): New proc.
        (-rtx-traverser-table,-rtx-make-traverse-table): New procs.
        (rtx-traverse-*): Rewrite rtx traversing.
        (rtx-eval-*): Rewrite rtx evaluation.
        (rtx-compile): New proc.
        (rtx-simplify): New proc.
        (rtx-simply-eq-attr-mach,rtx-simplify-eq-attr-insn): New procs.
        * rtx-funcs.scm: C generation moved to rtl-c.scm.
        (ifield,index-of): Rewrite.
        (name): Renamed from `operand:'.
        (operand,xop,local): New rtx's.
        (current-insn): Rewrite.
        * Makefile.am (CGEN_HOB_INPUT_FILES): Add rtl-c.scm, semantics.scm.
        (cgen-hob.h): Remove rule for.
        (cgen-hob.o): Depend on cgen-hob.c only.
        * Makefile.in: Rebuild.

        * utils-cgen.scm (vmake): New proc.
        (<context>): New class.
        (context-make-prefix,context-error): New procs.

Fri Apr  9 19:26:28 1999  Jim Wilson  <wilson@cygnus.com>

        * i960.cpu: Add some ??? comments.
        (xnor, ornot): New instructions.
        (*): Delete obsolete COND-CTI and UNCOND-CTI attributes.

1999-04-08  Doug Evans  <devans@casey.cygnus.com>

        * cos.scm (-object-error): Print better error message.

        * pmacros.scm (-pmacro-env-make): Renamed from -env-make.
        (-pmacro-env-ref): Renamed from -env-ref.

1999-03-31  Doug Evans  <devans@casey.cygnus.com>

        * hardware.scm (<hw-pc>,parse!): Allow get/set specs.
        (h-pc): Delete.
        (hardware-builtin!): Delete h-pc builtin.
        * arm.cpu (h-pc): Define.
        (h-gr): Delete get,set specs.  Make array of 16 regs again.
        * arm7.cpu (set-logical-cc-maybe): Delete.
        (set-zn-flags,set-add-flags,set-sub-flags): New macros.
        (data processing insns): Rewrite.
        * m32r.cpu (h-pc): Define.
        * fr30.cpu (h-pc): Define.
        * i960.cpu (h-pc): Define.
        * sparc.cpu (h-pc): Define.

        * rtl.scm (-rtx-traverse-operands): Add some error checking to LOCALS.
        (s-parallel): Replace do {...} while (0) with {...}.
        (s-sequence): Ditto.

        * sid-cpu.scm (gen-parallel-exec-type): Make type of `written'
        consistent.
        (-gen-write-case,-gen-sem-case): Ditto.
        (-gen-sem-case): Only specify `written' if profiling or
        parallel-write-back.
        (-gen-scache-semantic-fn,-gen-all-semantic-fns): Put procs back in.
        (-gen-sem-switch-fn): New proc.
        (cgen-semantics.cxx): Emit either semantic fns or semantic switch
        based on with-sem-switch option.
        * sid-decode.scm (-gen-decode-insn-globals): Only define
        idesc_table_initialized_p if with-sem-switch.  Record semantic fn
        addresses in idesc_table if !with-sem-switch.
        (-gen-sem-fn-decls): Rewrite.
        (-gen-idesc-decls): Define @cpu@_sem_fn type.  Define `execute'
        member based on with-sem-switch.  Only define
        `idesc_table_initialized_p' member if with-sem-switch.
        (cgen-decode.h): If !with-sem-switch, declare semantic fns.
        * sid.scm (-with-sem-switch?): New variable.
        (option-init!): Initialize it.
        (option-set!): Set it.
        (with-sem-switch?): New proc.
        (-op-gen-set-trace): Only emit `written' reference if profiling.
        (sim-finish!): Use h_pc_set to set pc.
        
1999-03-30  Doug Evans  <devans@casey.cygnus.com>

        * sparccom.cpu (arith-cc-binop): New args s32-set-flags,s64-set-flags.
        All callers updated.
        (arith-carry-cc-binop): New arg set-flags.  All callers updated.

        * sid.scm (gen-argbuf-type): Delete.
        (-gen-argbuf-fields-union): Move to ...
        * sid-decode.scm: ... here.
        
        * read.scm (-reader-process-expanded-1): New proc.
        (-reader-process-expanded): Call it to catch nested begin's.
        (reader-process): Move `begin' handling to -reader-process-expanded.

        * insn.scm (-insn-read): Fix name of `format' spec.

        * pmacros.scm (.pmacro): New builtin.
        (scan-symbol): If procedure macro, return macro rather than its symbol.
        (check-macro): Don't do lookup, instead check if (car expr) is
        macro object.
        (scan-list): Handle .pmacro.
        (scan): No longer re-examine text for another macro invocation.
        (-pmacro-build-lambda): New proc.
        (define-pmacro): Rewrite.  If defining one pmacro to be an alias of
        another, fetch the other's value (rather than doing it during
        expansion).

1999-03-27  Doug Evans  <devans@casey.cygnus.com>

        * Makefile.am (CGEN_HOB_INPUT_FILES): Add decode.scm.
        * Makefile.in: Rebuild.

        * decode.scm (decode-get-best-bits): Use memq instead of element?.
        (-fill-slot!): Simplify.
        (-build-slots): Simplify.

        * dev.scm (load-sid): Don't load sid-arch.scm.

        * sid-decode.scm: Replace computed goto decoder/extractor with plain
        switch's.
        * sim-decode.scm: Replace computed goto decoder/extractor with plain
        switch's.

1999-03-26  Doug Evans  <devans@casey.cygnus.com>

        * sim-decode.scm: Clean up pass.  Move decoder computation into ...
        * decode.scm: ... here.  New file.
        * sid-decode.scm: Use decoder computation code in decode.scm.
        * read.scm: Load decode.scm.

        * arm.cpu (arm710 model): Add u-exec function unit.
        (h-gr): Delete CACHE-ADDR for now.  Make array of 15, not 16 regs.
        Add get/set specs to redirect reg 15 to h-pc.
        (h-*): Indicate for both ARM and THUMB isas.
        (cbit,nbit,vbit,zbit): Ditto.
        (h-ibit,h-fbit,h-tbit,h-mbits): New hardware elements.
        (h-cpsr): Make virtual.  Add get/set specs.
        (h-spsr-fiq,h-spsr-svc,h-spsr-abt,h-spsr-irq,h-spsr-und): New hw.
        (h-spsr): New virtual reg.
        * arm7.cpu (shift-type): New explicitly defined keyword.
        (h-operand2-shifttype): Use it.
        (set-logical-cc-maybe): Delete carry-out arg.  New args arg1,arg2.
        All callers updated.  Don't set cbit.
        (logical-op): Add rm to ifield list.  Change case to case:.  Use
        shift-type enum as case choices.  Set cbit.
        (and,orr,eor,add-imm): Uncomment out.
        (undefined): Temporarily comment out.
        * thumb.scm (mov,cmp,addi8,subi8,str-sprel,ldr-sprel): s/rd/bit10-rd/.
        (lda-pc,lda-sp): Ditto.
        (ldr-pc): Rename from ldr.
        (cbranch): Mark insns as being thumb insns.

        * attr.scm (<bitset-attribute>,parse-value): Recognize strings.

        * cgen-sid.scm: Don't load sid-arch.scm.
        (sim-arguments): Delete unused entries.
        * sid-arch.scm: Delete.
        
        * insn.scm (<insn>,iflds): Renamed from flds.  All uses updated.
        (<insn>,ifld-assertions): New member.
        (<insn>,make!): New arg ifld-assertions, all callers updated.
        (<insn> accessors): Change insn:foo to insn-foo.  All callers updated.
        (insn:fields): Delete.
        (-insn-parse): New arg ifld-assertions.  All callers updated.
        (-insn-read,define-insn): New procs.
        (define-full-insn): New arg ifld-assertions.  All callers updated.
        (insn-init!): New comment define-insn.

        * model.scm (-model-parse): Ensure at least one unit specified.

        * rtl.scm (-rtx-traverse-operands): Recognize environments.
        (<c-expr-temp>,get-name): New method.
        (-rtx-make-current-closure,s-closure): New proc.
        (hw:): Wrap rtx indices in a closure.
        (-gen-case-prefix): New proc.
        (s-case): Simplify.
        * rtx-funcs.scm (case:): Fix call to s-case.
        (closure): New rtx func.

        * hardware.scm (<hardware-base>): New member isas-cache.
        (<hardware-base>,get-isas): New method.
        (hardware-builtin): Indicate for all isas.
        * ifield.scm (-ifield-parse): Only keep if isa+mach are kept.
        * mach.scm (current-arch-mach-name-list): Return list of names.
        (current-isa-mach-name-list): Ditto.
        (define-arch): Install builtin objects here.
        * read.scm (keep-atlist?): Only keep if both mach and isa are
        being kept.
        (keep-mach-atlist?): New proc.
        (keep-isa-multiple?,current-keep-isa-name-list): New proc.
        (reader-install-builtin!): Renamed from -install-builtin!.
        * sid-cpu.scm (-gen-reg-access-defns): Renamed from
        -gen-cpu-reg-access-defns.  Rewrite.
        (gen-reg-access-defn): Delete.
        (-gen-hardware-struct): New proc.
        (-gen-hardware-types): Simplify.  Add multiple-isa support.
        (gen-semantic-fn,-gen-all-semantics): Delete.
        (-gen-read-args,-gen-read-case,-gen-read-switch): Delete.
        (cgen-cpu.c,cgen-read.c,cgen-sem-switch.c,cgen-mainloop.in): Delete.
        (cgen-write.cxx,cgen-semantics.cxx,cgen-decode.cxx): Renamed from *.c.
        Call sem-analyze-insns!.
        (cgen-semantics.cxx): Add multiple-isa support.
        * sid-decode.c (-gen-idesc-decls): Add multiple-isa support.
        (-gen-scache-decls,-gen-decode-fn): Ditto.
        (cgen-decode.h): Call sem-analyze-insns!.
        * sid-model.scm (cgen-model.cxx): Renamed from cgen-model.c.
        * sid.scm (-with-multiple-isa?): New variable.
        (option-init!): Initialize it.
        (option-set!): Set it.
        (with-multiple-isa?): New proc.
        (gen-cpu-ref): New arg isas.  All callers updated.
        (gen-cpu-class): New proc.
        (*-get-macro,*-set-macro): Delete.
        (gen-reg-get-fun-name,gen-reg-set-fun-name): New procs.
        (-hw-gen-fun-get): Call gen-reg-get-fun-name.
        (-hw-gen-fun-set): Call gen-reg-set-fun-name.
        (-gen-hw-index): Call rtx-c instead of rtx-c-with-temps for rtxs.
        (-sim-insns-analyzed): New global variable.
        (sim-init!): Reset it.
        (sim-analyze-insns!): New proc.
        (sim-analyze!): Don't do instruction analysis here.
        (sim-finish!): Specify isa of x-invalid insn.
        * sim.scm (sim-finish!): Specify isa of added x-* virtual insns.

1999-03-22  Doug Evans  <devans@casey.cygnus.com>

        * thumb.cpu (cpu,mach,model): Delete.
        (dntf): New pmacro.  Use it for all field definitions.
        (dntop): New pmacro.  Use it for all operand definitions.
        (asr): Correct field list.
        (add,addi,sub,subi,add-sp,add-sp-neg): Ditto.

        * utils-cgen.scm (define-getters): New macro to simplify
        writing class accessors.
        (define-setters): Ditto.
        (sanitize): Recognize isa elements.

        * sid-cpu.scm (*): Replace cpu:parallel-exec? call with
        state-parallel-exec?.
        * sid-model.scm (*): Ditto.
        * sid-decode.scm (*): Ditto.  Replace cpu:decode-assist with
        state-decode-assist.

        * sid-decode.scm (decode-bits): Replace list-reverse! with reverse!.
        (-gen-decode-switch): Rewrite to not generate deeply nested lists.
        * sim-decode.scm (-gen-decode-switch): Ditto.

        * sim-arch.scm (-regs-for-access-fns): Delete.
        (-biggest-reg-mode,-gen-arch-reg-access-decls): Delete.
        (-gen-arch-reg-access-defns): Delete.

        * sim-cpu.scm (*): Replace cpu:liw-insns with state-liw-insns,
        cpu:parallel-insns with state-parallel-insns, cpu:parallel-exec?
        with state-parallel=exec?.
        (cgen-*): Call sim-analyze-insns! here.
        * sim-decode.scm (cgen-*): Ditto.
        * sim-model.scm (cgen-*): Ditto.
        * sim.scm (-sim-insns-analyzed): New global variable.
        (sim-init!): Reset it.
        (sim-analyze-insns!): Renamed from sim-analyze!.  Keep track if we've
        already done the analysis.

        * sim-model.scm (-gen-mach-defns): Add mach attribute number to
        MACH struct.

        * arm.cpu: Only include arm7.cpu,thumb.cpu if necessary.
        (arm arch): Update isa spec.
        (arm,thumb isas): Define.
        (arm7 cpu): default-insn-bitsize,base-insn-bitsize moved to isas.
        (arm7tdmi mach): Add isa spec.
        * arm7.cpu (*): Replace subreg: with subword:.  Remove unnecessary
        `const' on word number.
        * fr30.cpu (fr30 arch): Update isa spec.
        (fr30 isa): Define.
        (fr30bf cpu): default-insn-bitsize,base-insn-bitsize,decode-assist,
        moved to isa spec.
        * i960.cpu (i960 arch): Update isa spec.
        (i960 isa): Define.
        (i960base cpu): default-insn-bitsize,base-insn-bitsize,decode-assist,
        liw-insns,parallel-insns moved to isas spec.
        * m32r.cpu (m32r arch): Update isas spec.
        (m32r isa): Define.
        (m32rbf cpu): default-insn-bitsize,base-insn-bitsize,decode-assist,
        liw-insns,parallel-insns moved to isa spec.
        * sparc.cpu (sparc arch): Update isas spec.
        (sparc isa): Define.
        * sparc32.cpu (sparc32 cpu): default-insn-bitsize,base-insn-bitsize,
        decode-assist moved to isa spec.
        * sparc64.cpu (sparc64 cpu): Ditto.
        * sparccom.cpu (trap insns): Correct mode of result of c-call:.
        * desc-cpu.scm (-gen-isa-table-defns): New proc.
        (-gen-mach-table-defns): Output mach table.
        (-gen-hash-defines): Delete insn size macros, except for
        CGEN_MAX_INSN_SIZE.
        (-cgen-cpu-open): Rewrite cpu_open handling.  Take stdarg list of args.
        (cgen-desc.h): Define MAX_ISAS.
        (cgen-desc.c): Include stdarg.h.  Call -gen-isa-table-defns.
        * mach.scm (<arch>): Rename arch-data to data.  New member isa-list.
        (arch-* accessors): Renamed from arch:*.  All callers updated.
        (current-arch-isa-name-list): New proc.
        (-arch-parse-isas): Renamed from -arch-parse-isa.
        (def-isa-attr!): Rewrite.
        (<iframe>): New class.
        (<itype>): New class.
        (<isa>): Rewrite.
        (isa-min-insn-bitsize,isa-max-insn-bitsize): New procs.
        (isa-integral-insn?,isa-parallel-exec?): New procs.
        (-isa-parse,-isa-read,define-isa): New proc.
        (<cpu>): Members default-insn-bitsize,base-insn-bitsize,decode-assist,
        liw-insns moved to <isa>.
        (cpu-* accessors): Renamed from cpu:*.  All callers updated.
        (-cpu-parse,-cpu-read): Update.
        (state-*): Renamed from state:*.  All callers updated.
        (state-default-insn-bitsize,state-base-insn-bitsize): Use isa spec,
        not cpu.
        (state-parallel-insns,state-parallel-exec?,state-liw-insns): New procs.
        (state-decode-assist): New proc.
        (<derived-arch-data>): Delete min-insn-bitsize,max-insn-bitsize.
        (-adata-set-derived!): Rewrite.
        (adata-integral-insn?): Renamed from adata:integral-insn?.  All
        callers updated.
        (arch-init!): Add define-isa command.
        * read.scm (<reader>): Default keep-isa member to (all).
        (reader-* accessors): Renamed from reader:*.  All callers updated.
        (-keep-isa-set!): Call string->symbol on isa name list.
        (keep-isa-validate!): Rewrite.
        (current-isa): New proc.
        (keep-isa?): Recognize "all".
        (-init-parse-cpu!): New arg keep-isa.  All callers updated.
        Call -keep-isa-set!.
        (cmd-if): Recognize keep-isa?.
        (cpu-load): New arg keep-isa.  All callers updated.
        (-opt-spec-update): New proc.
        (common-arguments): First arg is string, not symbol.
        (-cgen): Call -opt-spec-update.  Rewrite argument parsing.
        
        * rtl.scm (rtx-get): Default mode of string arg is INT.

        * rtl.scm (s-subword): Renamed from s-subreg.  All uses updated.

        * rtx-funcs.scm (join:): Pass cpu to handler.

        * configure.in (guile_include_dir): Delete.
        * configure: Rebuild.
        * Makefile.in: Rebuild.
        * doc/Makefile.in: Rebuild.

        * sid-cpu.scm (-extract-chunk-specs): New proc.
        (gen-define-fields): Use it.
        (-extract-chunk): New proc.
        (-gen-extract-beyond-var-list): Use it.
        (gen-extract-fields): Simplify.
        
1999-03-22  Ben Elliston  <bje@cygnus.com>

        * arm7.cpu (ldri-p): New instruction.
        (swi): Do not vector through 0x8 yet--there is nothing there.
        (addi): Reinstate.
        (movi): Likewise.
        (all): Use (const x) in subreg expressions.
                        
1999-03-19  Ben Elliston  <bje@cygnus.com>

        * arm7.cpu (smull): Use operand field `rs', not `mul-rn'. Thinko.
        (smlal): Likewise.

1999-03-17  Doug Evans  <devans@casey.cygnus.com>

        * fr30.cpu (define-arch): Specify "forced" default-alignment.
        * mach.scm (-parse-alignment): Recognize "forced" alignment.
        * sim-cpu.scm (-extract-chunk-specs): New proc.
        (gen-define-fields): Use it.
        (-extract-chunk): New proc.
        (-gen-extract-beyond-var-list): Use it.
        (gen-extract-fields): Simplify.

        Port to guile 1.3.1.
        * Makefile.am (GUILEINCDIR,GUILELDFLAGS,GUILELDADD): Delete.
        (LIBIBERTY): New var.
        (HOB_OBJS): Add cgen-gh.o.
        (hobbit): Delete $(CFLAGS) from link, add $(LIBS) $(LIBIBERTY).
        * Makefile.in: Rebuild.
        * acconfig.h: Add HAVE_3_ARG_SCM_MAKE_VECTOR.
        * config.in: Rebuild.
        * configure.in: Add checks for libdl, libreadline, libnsl, libsocket,
        libncurses, libtermcap.
        Add checks for needed functions in guile 1.2 not in guile 1.3,
        and vice versa.  Add test for 3 argument scm_make_vector.
        * configure: Rebuild.
        * cgen-gh.c (scm_list_length,scm_list_append,scm_list_reverse): Provide
        definitions if guile doesn't have them.
        (gh_make_vector,gh_length,gh_vector_set_x,gh_vector_ref):
        (cgh_vector): Replace gh_vector with gh_make_vector.  Replace gh_vset
        with gh_vector_set_x.
        (cgh_qsort): Replace gh_list_length with gh_length.
        * cgen-gh.h: Add decls for added functions.
        (cgh_qsort): Don't declare if IN_HOBBIT.
        * cos.c: Include config.h.  Replace gh_vref with gh_vector_ref,
        gh_vset with gh_vector_set_x, gh_list_length with gh_length,
        scm_make_vector with gh_make_vector.
        * cos.scm: Use vector-length instead of length on vectors.
        * dev.scm (cload): Make varargs proc with keyword/value args.
        * hobscmif.h: Include config.h, cgen-gh.h.  Undef make_vector and
        provide version that works with guile 1.2 or 1.3.
        Include private copy of scmhob.h.
        * scmhob.h: New file.  Keep our own copy for now.

Tue Mar 16 13:22:01 1999  Doug Evans  <devans@canuck.cygnus.com>

        * rtl.scm (-rtx-traverse-error): Ensure expression is output in
        plain text.
        (-rtx-traverse-operands): Dump cx temp stack if debugging.
        (-cx-temp-dump-stack): Pretty up output.

        * arm.cpu: comment out thumb.cpu until isa support ready.
        * arm7.cpu (bl): Replace lr with (reg h-gr 14).
        (f-imm12,f-offset24,swi,undef): Fix thinko, add `const'.
        * thumb.cpu (h-gr-t,h-lr-t,h-sp-t,dnti,h-hiregs): s/MACH/ISA/.

        * sid-decode.scm (cgen-decode.c): Call rtl-gen-init!.
        
1999-03-11  Doug Evans  <devans@casey.cygnus.com>

        * hardware.scm (<hw-immediate>,mode-ok?): Ensure result is boolean.
        (<hw-address>,mode-ok?): unsigned/signed are compatible.

        * operand (op:new-mode): Improve error message.

        * arm.cpu: Move arm isa into arm7.cpu.  Include arm7.cpu, thumb.cpu.
        * arm7.cpu: New file.

1999-03-12  Ben Elliston  <bje@cygnus.com>

        * arm.cpu: Lots of minor fixes after desk checking.

1999-03-11  Doug Evans  <devans@casey.cygnus.com>

        * thumb.cpu: snapshot of current work

        * rtl.scm (rtx-get): Tweak error message.

1999-03-10  Doug Evans  <devans@casey.cygnus.com>

        * Makefile.am (cos.o,cgen.o,cgen-gh.o): Fix dependencies.
        * Makefile.in: Rebuild.

        * cos.c (cos_vector_copy): New function.
        (_object_copy): Use it.

        * mode.scm (mode:eq?): Clean up.
        * rtl.scm (cx-new-mode): Copy attributes.
        (rtx-get): Don't make copy if <c-expr> with identical mode.

        * fr30.cpu (define-arch): Delete default-insn-word-bitsize,
        add new isas spec.
        (gr-names): h-gr register names moved here.
        (h-gr): Update.
        (cr-names): h-cr register names moved here.
        (h-cr): update.
        (dr-names): h-dr register names moved here.
        (h-dr): update.
        (h-ps): Replace FUN-ACCESS attribute with get/set specs.
        (h-sbit,h-ccr,h-scr,h-ilm): Ditto.
        * i960.cpu (define-arch): Delete default-insn-word-bitsize,
        add new isas spec.
        * m32r.cpu (define-arch): Delete default-insn-word-bitsize,
        add new isas spec.
        (gr-names): h-gr register names moved here.
        (h-gr): Update.
        (cr-names): h-cr register names moved here.
        (h-cr): update.
        (h-accum): Replace FUN-ACCESS attribute with get/set specs.
        (h-accums,h-psw): Ditto.
        * sparc.cpu (define-arch): Delete default-insn-word-bitsize,
        add new isas spec.
        (gr-names): h-gr register names moved here.
        (h-gr-indices): Delete.
        (sparc32 h-gr): Update.  Replace FUN-ACCESS with get/set specs.
        (sparc64 h-gr): Ditto.
        (h-y): Add get/set specs.
        (fp regs): Rewrite.
        (fp operands): Rewrite.
        * sparc32.cpu (h-psr): Replace FUN-ACCESS with get/set specs.
        (h-tbr,h-cwp,h-wim): Ditto.
        * sparc64.cpu (h-fpsr): Add get/set specs.
        * sparccom.cpu (ldd-reg+reg): Load value all at once.
        (fp-ld-op): New arg `dest', all callers updated.
        (*): Replace `make-di' with `join'.

        * sid-cpu.scm (-gen-cpu-reg-access-defns): Use get/set specs if
        present.
        (gen-semantic-code): Save/restore rtl generator state.
        (cgen-cpu.h): Call rtl-gen-init!.
        * sid.scm (-gen-ifld-extract-base): Update call to rtx-c-with-alist.
        (-gen-ifld-extract-beyond): Ditto.
        (<multi-ifield>,gen-ifld-extract): Ditto.
        (all gen-read,gen-write,cxmake-get,gen-set-* methods): New arg
        `gstate'.
        (-hw-gen-set-quiet-pc): Ditto.
        (<hw-pc>,gen-write): Ditto.
        (-hw-cxmake-get): Ditto.  Call getter function if present.
        (<hw-register>,cxmake-get-raw): New method.
        (<hw-register>,gen-set-quiet-raw): New method.
        (-hw-gen-set-quiet): New arg `gstate'.
        (hw-fun-access?): Delete.
        (gen-reg-access-defn): Output function contents.
        (-gen-hw-index-raw): Update call to rtx-c.  Update cxmake-get
        invocation.
        (-gen-hw-index): Ditto.
        (op:read): Update gen-read invocation.
        (op:write): Update gen-write invocation.
        (<operand>,cxmake-get,gen-set-quiet,gen-set-trace): Handle raw-reg
        operands.
        (-op-gen-set-quiet,-op-gen-set-quiet-parallel): New arg `gstate'.
        (-op-gen-set-trace,-op-gen-set-trace-parallel): Ditto.
        (<unit>,gen-profile-code): Update to sim.scm version.
        
        * sim-arch.scm (-regs-for-access-fns): New proc.
        (-biggest-reg-mode): New proc.
        (-gen-arch-reg-access-decls,-gen-arch-reg-access-defns): Rewrite.
        * sim-cpu.scm (-gen-hardware-types): Output get/set handlers for
        virtual regs separately.
        (-gen-cpu-reg-access-defns): Replace fun-access? with new
        get/set specs.
        (gen-semantic-code): Save/restore rtl generator state.
        (cgen-cpu.h): Call rtl-gen-init!.
        (cgen-cpu.c): Ditto.  #include cgen-ops.h.
        * sim-model.scm: mach:cpu renamed to mach-cpu.  mach:bfd-name
        renamed to mach-bfd-name.
        * sim.scm (-gen-ifld-extract-base): Update call to rtx-c-with-alist.
        (-gen-ifld-extract-beyond): Ditto.
        (<multi-ifield>,gen-ifld-extract): Ditto.
        (<scalar>,gen-sym-get-macro): Update call to gen-get-macro.
        (<scalar>,gen-sym-set-macro): Update call to gen-set-macro.
        (all gen-read,gen-write,cxmake-get,gen-set-* methods): New arg
        `gstate'.
        (hw-fun-access?): Delete.
        (-hw-gen-set-quiet-pc): New arg `gstate'.
        (<hw-register>,gen-get-macro): Rewrite.
        (<hw-register>,gen-set-macro): Rewrite.
        (-hw-gen-fun-get,-hw-gen-fun-set): Delete.
        (-hw-cxmake-get): New arg `gstate'.  Rewrite.
        (<hw-register>,cxmake-get-raw): New method.
        (-hw-gen-set-quiet): New arg `gstate'.  Rewrite.
        (<hw-register>,gen-set-quiet-raw): New method.
        (-gen-hw-index-raw): Update call to rtx-c.  Update cxmake-get
        invocation.
        (-gen-hw-index): Ditto.
        (<hw-index>): New arg `gstate'.
        (-gen-hw-selector): Update call to rtx-c.
        (<pc>): New arg `gstate'.
        (op:read): Update gen-read invocation.
        (op:write): Update gen-write invocation.
        (<operand>,cxmake-get): Handle raw-reg.
        (-op-gen-set-quiet,-op-gen-set-quiet-parallel): New arg `gstate'.
        (-op-gen-set-trace,-op-gen-set-trace-parallel): Ditto.
        (<operand>,gen-set-quiet): Handle raw-reg.
        (<operand>,gen-set-trace): Handle raw-reg.
        (-gen-mach-data): mach:cpu renamed to mach-cpu.

        * desc-cpu.scm (gen-operand-decls): Take nub of operands for
        cgen_operand_type enum.
        (gen-operand-table): Add operand type enum.  Replace pointer to
        hardware element with its enum.  Null terminate table.
        (-gen-cpu-open): Add new `isa' argument to @arch@_cgen_cpu_open.
        Build operand table.
        * ifield.scm (-ifield-parse): Recognize ISA attribute.
        * mach.scm (<arch-data>): New member `isas'.
        (adata-isas): New accessor.
        (<isa>): New class.
        (isa-default-insn-word-bitsize): New accessor.
        (isa-enum): New proc.
        (current-arch-default-insn-word-bitsize): Delete.
        (current-isa-list,current-isa-lookup): New procs.
        (-arch-parse-isa): New proc.
        (-arch-parse): Rewrite.
        (-arch-read): Recognize `isas'.  Delete `default-insn-word-bitsize'.
        (define-arch): Define ISA attribute.
        (def-isa-attr!,isa-supports?): New procs.
        (<mach>): New member `isas'.
        (mach-isas): New accessor.
        (-mach-parse): New arg `isas', all callers updated.
        (-mach-read): Recognize `isas'.
        (arch-finish!): Rewrite.
        * opc-ibld.scm (-gen-fget-switch): Add `cd' arg to
        @arch@_cgen_get_{int,vma}_operand.
        (-gen-fset-switch): Add `cd' arg to @arch@_cgen_set_{int,vma}_operand.
        * opc-opinst.scm (-gen-operand-instance): Output operand enum instead
        of pointer to table entry.
        * opcodes.scm (gen-switch): Handle multiply defined operands.
        * operand.scm (op-sort): New proc.

        * hardware.scm (<hardware-base>): Rename getters/setters to get/set.
        (hw-getter,hw-setter): Renamed from hw-getters,hw-setter.
        (hw-enum): Accept symbol argument.
        (hardware-builtin!): Delete attribute FUN-ACCESS.
        * ifield.scm (ifld-encode-mode,ifld-decode-mode): New procs.

        * attr.scm (atlist-source-form): New proc.
        (attr-builtin!): New attr `PRIVATE'.
        * desc.scm (<keyword>,gen-defn): Make keyword entry table static.
        * desc-cpu.scm (-gen-hw-defn): Only output index and value tables
        if they have `PRIVATE' attribute.
        (gen-hw-table-defns): Output definitions of explicitly defined
        keyword tables.
        * hardware.scm (<keyword>): New member print-name.  Rename member
        `value' to `values', all uses updated.
        (kw-mode,kw-print-name,kw-prefix,kw-values): New procs.
        (keyword-parse): Rewrite.
        (-keyword-read): New proc.
        (define-keyword): New proc.
        (-hw-parse-keyword): New proc.
        (-hw-parse-indices): Rewrite keyword handling, support new index spec
        `extern-keyword'.
        (-hw-parse-values): Ditto.
        (-hw-parse-get,-hw-parse-set): Rewrite.
        (hardware-init!): Add new comment define-keyword.
        * mach.scm (<arch>): New member `kw-list'.
        (arch:kw-list,arch_set-kw-list!): New accessors.
        (current-kw-list,current-kw-add!,current-kw-lookup): New procs.

        * hardware.scm (<hw-register>,mode-ok?): Rewrite.
        * mode.scm (mode-class-integral?): New proc.
        (mode-class-float?,mode-class-numeric?): New procs.
        (mode-integral?,mode-float?,mode-numeric?): New procs.
        (mode-compatible?): New proc.
        * opcodes.scm (<ifield>,gen-insert): Update alist arg to
        rtx-c-with-alist.
        (<ifield>,gen-extract): Ditto.
        * rtl.scm (-rtl-simulator?,-rtx-current-obj): Delete.
        (<gstate>): New class.
        (gstate-simulator?,gstate-set-simulator?!): New accessors.
        (gstate-context,gstate-set-context!): New accessors.
        (gstate-macro?,gstate-set-macro?!): New accessors.
        (gstate-make,gstate-copy): New procs.
        (-rtl-current-gstate): New global.
        (current-gstate-simulator?): New proc.
        (current-gstate-context,current-gstate-macro?): New procs.
        (current-gstate,current-gstate-set!): New procs.
        (rtl-gen-init!): Rewrite.
        (-rtx-valid-types): Add INTMODE, FLOATMODE, NUMMODE.
        (tstate-make): New arg `gstate', all callers updated.
        (tstate-set-expr-fn!,tstate-set-op-fn!): New accessors.
        (tstate-set-cond?!,tstate-set?,tstate-set-set?!): New accessors.
        (tstate-gstate,tstate-set-gstate!): New accessors.
        (tstate-copy): New proc.
        (tstate-new-cond?,tstate-new-set?): Rewrite.
        (-rtx-traverse-operands): Handle INTMODE, FLOATMODE, NUMMODE.
        (rtx-traverse): New arg `gstate', all callers updated.
        (rtx-strdump): New proc.
        (-simplify-for-compilation): New arg `gstate', all callers updated.
        (semantic-in-out-operands): Ditto.
        (semantic-attrs): Ditto.
        (rtx-eval): Rewrite.  New arg `gstate', all callers updated.
        (rtx-eval-with-temps,rtx-eval-with-alist): Ditto.
        (rtx-value): Rewrite.
        (<c-expr>,gen-name): New method.
        (<c-expr>,gen-set-quiet): New arg `gstate', all callers updated.
        (<c-expr>,gen-set-trace): New arg `gstate', all callers updated.
        (cx-new-mode): New proc.
        (-rtx-c-with-tstate): New proc.
        (rtx-c,rtx-c-with-temps,rtx-c-with-alist): New arg `gstate', all
        callers updated.
        (-rtx-mode): Rewrite.
        (-rtx-mode-compatible?): New proc.
        (<c-expr-temp>): New member `value'.
        (cx-temp:value): New accessor.
        (<c-expr-temp>,make!): Override default method.
        (<c-expr-temp>,cxmake-get): Rewrite.
        (<c-expr-temp>,gen-set-quiet): Rewrite.
        (<c-expr-temp>,gen-set-trace): Rewrite.
        (gen-temp-defs): Use cx-temp:value.
        (record-temp!): New arg value, all callers updated.
        (cx-temp:cx:make): Delete.
        (-cx-temp-dump-stack): New proc.
        (rtx-get): New arg `gstate', all callers updated.  Do mode
        compatibility checks.  Ensure result has specified mode.
        (rtx-set-quiet): New arg `gstate', all callers updated.
        (rtx-set-trace): Ditto.
        (s-c-call): New arg `tstate', all callers updated.
        (s-c-raw-call): Ditto.
        (s-unop,s-binop,s-binop-with-with,s-shop,s-boolifop,s-convop): Ditto.
        (s-cmpop,s-if,e-if): Ditto.
        (s-subreg): New proc.
        (-par-new-temp!): New proc.
        (-par-next-temp!): Rewrite.
        (-par-replace-set-dests): Use -par-new-temp!.
        (s-parallel): Rewrite temp handling.  Use -rtx-c-with-state.
        (s-sequence): Use -rtx-c-with-state.
        * rtx-funcs.scm (*): Update.
        (raw-reg:): New rtx function.
        (make-di): Delete.
        (join:,subreg:): New rtx functions.

        * insn.scm (<insn>): New members pre-cond-trap, condition,
        post-cond-trap, compiled-condition.

        * insn.scm (syntax-break-out): Replace eval with current-op-lookup.

        * opcodes.scm (<pc>,cxmake-get): New arg `selector'.

        * utils-cgen.scm (parse-symbol): New proc.
        (parse-string): New proc.
        (gen-get-macro,gen-set-macro): New arg `index-args'.
        (gen-set-macro2): Ditto.  Enclose code in do { } while (0).
        Prepend \ to newlines.

        * utils.scm (alist-remove-duplicates): Delete.

        * sid.scm (sim-init!): Delete private debugging code.
        
1999-03-10  Frank Ch. Eigler  <fche@cygnus.com>

        * cgen-sid.scm: New file for C++ simulator application.
        * sid-arch.scm: Ditto.
        * sid-cpu.scm: Ditto.
        * sid-decode.scm: Ditto.
        * sid-model.scm: Ditto.
        * sid.scm: Ditto.
        * utils-cgen.scm (gen-mach-sid-name): Remove this accident.
        
1999-03-05  Ben Elliston  <bje@cygnus.com>

        * arm.cpu: New file.

1999-03-03  Doug Evans  <devans@casey.cygnus.com>

        * Makefile.am (CGEN_HOB_INPUT_FILES): Add hardware.scm.
        * Makefile.in: Rebuild.

        * attr.scm (<integer-attribute>,parse-value-def): Tweak.
        (-attr-parse): Validate default value.

        * read.scm (-CGEN-VERSION): Change to 0.7.1.
        (-CGEN-LANG-VERSION): Ditto.
        (-keep-all-machs): Renamed from -keep-all, all uses updated.
        (<reader>): New member keep-isa plus accessors.
        (-keep-isa-set!,keep-isa-validate!): New procs.
        (keep-isa?,keep-isa-atlist?,keep-isa-obj?): New procs.
        (common-arguments): New variable.
        (cgen-usage,getarg,catch-with-backtrace,option-arg): New procs.
        (-debug-repl,continue): New procs.
        (-cgen,cgen): New procs.
        * cgen-gas.scm: Rewrite.
        * cgen-opc.scm: Rewrite.
        * cgen-sim.scm: Rewrite.
        * cgen-stest.scm: Rewrite.

        * gas-test.scm (gas-test-init!): Call opcodes-init!.
        (gas-test-finish!): Call opcodes-finish!.
        (gas-test-analyze!): Call opcodes-analyze!.
        (<hw-asm>): New method test-data.
        (<operand>,testdata): Rewrite.
        * sim-test.scm (sim-test-init!): Call opcodes-init!.
        (sim-test-finish!): Call opcodes-finish!.
        (sim-test-analyze!): Call opcodes-analyze!.
        (<hw-asm>): New method test-data.
        (<operand>,testdata): Rewrite.

1999-03-01  Doug Evans  <devans@casey.cygnus.com>

        * fixup.scm (reverse!): Define if missing.
        * *.scm: Use reverse! instead of list-reverse!.

        * utils.scm (leading-id-char?): New proc.
        (id-char?): Rewrite.
        (chars-until-delimiter): New proc.
        * opc-itab.scm (extract-syntax-operands): Rewrite.
        (strip-mnemonic): Rewrite.
        (compute-syntax): Rewrite.

        * pmacros.scm (-pmacro-substr): New proc.
        (pmacros-init!): Add builtin .substr.

1999-02-26  Doug Evans  <devans@casey.cygnus.com>

        * thumb.cpu: New file.

1999-02-24  Doug Evans  <devans@casey.cygnus.com>

        * Makefile.am (CGENCFLAGS): New variable.
        (WITH_HOBBIT): Use automake conditional.
        (CGEN_HOB_SRC): New variable.
        (libcpu_a_SOURCES): Use $(CGEN_HOB_SRC).
        (*.o): Compile with CGENCFLAGS.
        (cgen-hob.c): Simplify.
        (cgen-nohob.c): New rule.
        (hobbit): Renamed from hob.x.
        (CLEANFILES): Add cgen-nohob.c.
        * Makefile.in: Rebuild.
        * doc/Makefile.in: Rebuild.
        * configure.in (AM_INIT_AUTOMAKE): Update CGEN version to 0.7.1.
        (WITH_HOBBIT): Use AM_CONDITIONAL.
        * configure: Rebuild.
        * aclocal.m4: Rebuild.

        * sim-arch.scm (-gen-arch-reg-access-defns): Replace string-map
        with string-write-map.

        * sim-cpu.scm (hw-need-storage?): New proc.
        (-gen-hardware-types): Use it.
        (gen-parallel-exec-elm): Call op-save-index?.

        * sim-decode.scm (cgen-decode.c): Call rtl-gen-init!.

        * sim.scm (-gen-ifld-extract-base): Use mode:class instead of
        UNSIGNED attribute.
        (-gen-ifld-extract-beyond): Ditto.
        (<integer>): Delete all references.
        (<sim-hardware>): Delete.
        (hw-profilable?): New proc.
        (<hardware-base>): New methods gen-get-macro,gen-set-macro.
        (<hw-register>): Rename method get-index-mode to save-index?.
        (<hw-register>): New methods gen-get-macro,gen-set-macro.
        (<hw-register>,gen-sym-decl): Make virtual.
        (<hw-memory>,gen-sym-decl): Make virtual.
        (<hw-memory>): Rename method get-index-mode to save-index?.
        (<hw-address>,gen-sym-decl): Make virtual.
        (<operand>): New method save-index?.
        (sim-init!): Delete calls to sim-hw-init!,sim-hw-init-parsers!.

        * opc-itab.scm (opc-{parse,insert,extract,print}-handlers): opc-
        prefix added.  All uses updated.

        * opc-opinst.scm (-gen-operand-instance): Output hw enum value
        rather than pointer to table entry.

        * opcodes.scm: Remove all attribute support, lives in desc.scm.
        Remove all hw-asm,op-asm support.
        (-gen-parse-number,-gen-parse-address): New procs.
        (<keyword>,gen-parse): Redo function name computation.
        (<keyword>,gen-print): Ditto.
        (<operand>,gen-function-name): Rewrite.
        (<operand>,gen-fget,gen-fset,gen-parse,gen-print): Ditto.
        (opcodes-init!): Delete call to add-parser!.

        * desc-cpu.scm (gen-hw-decls): Rename enum hw_type to cgen_hw_type.
        Define enum using hardware semantic name.
        (-gen-hw-decl,-gen-hw-defn): New procs.
        (gen-hw-table-decls): Use -gen-hw-decl.
        (gen-hw-table-defns): Use -gen-hw-defn.  Rewrite generation of
        CGEN_HW_ENTRY structs.
        (gen-operand-table): Output hw's enum, not pointer to table entry.
        (-gen-cpu-open): Build table of selected hardware elements.

        * desc.scm (-hw-asm-specs,-parse-hw-asm): Delete.
        (<hardware> support): Delete.
        (<hw-asm>): Delete, moved to hardware.scm.
        (normal-hw-asm,hw-asm:parse,hw-asm:print): Delete.
        (<hw-asm>,gen-table-entry): New method.
        (<hw-asm>,parse!): Delete.
        (<keyword>,gen-table-entry): New method.
        (<keyword>,parse!): Delete.
        (<hw-{register,memory,immediate,address}>): Delete forwarding methods
        for gen-decl,gen-defn,gen-ref,gen-init.
        (desc-init!): Don't create parser for operand asm specs.

        * attr.scm (attr-builtin!): Delete UNSIGNED attribute.
        * ifield.scm (<ifield>): New member `mode'.
        (<ifield>,make!): New arg `mode'.
        (ifld-mode): Rewrite.
        (ifld-hw-type): Rewrite.
        (<ifield>,min-value): Rewrite.
        (<ifield>,max-value): Rewrite.
        (-ifield-parse): New arg `mode'.
        (-ifield-read): Update.
        (define-full-ifield): New arg `mode'.
        (define-full-multi-ifield): Ditto.
        (-multi-ifield-parse): Ditto.
        (-multi-ifield-read): Update.
        (define-full-multi-ifield): New arg `mode'.
        (ifield-builtin!): Update definition of f-nil.
        * simplify.inc (define-normal-ifield): Update call to
        define-full-ifield.
        (define-normal-multi-ifield): Update call to define-full-multi-ifield.
        (define-normal-hardware): Delete arg asm.  New args indices, values,
        handlers.  Update call to define-full-hardware.
        (define-simple-hardware,dsh): New pmacros.
        (define-normal-operand): Update call to define-full-operand.
        * fr30.cpu (f-*): Delete UNSIGNED attribute.  Default is now UNSIGNED.
        Specify INT/UINT mode instead.
        (h-gr,h-cr): Use "indices" instead of "asm".
        (h-dr,h-ps): Update keyword syntax.
        (h-r13,h-r14,h-r15): Ditto.
        (h-nbit,h-zbit,h-vbit,h-cbit): Use dsh instead of dnh.
        (h-d0bit,h-d1bit,h-ibit,h-sbit,h-tbit,h-ccr,h-scr,h-ilm): Ditto.
        (m4): Fix typo on HASH-PREFIX.  Use "handlers" instead of "asm".
        (reglist_low_ld,reglist_hi_ld,reglist_low_st,reglist_hi_st): Ditto.
        * i960.cpu (f-*): Delete UNSIGNED attribute.  Default is now UNSIGNED.
        Specify INT/UINT mode instead.
        (h-gr): Use "indices" instead of "asm".
        (h-cc): Update keyword syntax.
        * m32r.cpu (f-*): Delete UNSIGNED attribute.  Default is now UNSIGNED.
        Specify INT/UINT mode instead.
        (h-hi16,h-slo16,h-ulo16): Update.
        (h-gr,h-cr): Use "indices" instead of "asm".
        (h-accum,h-cond,h-psw,h-bpsw,h-bbpsw,h-lock): Use dsh instead of dnh.
        (h-accums): Update keyword syntax.
        (hash,hi16,slo16,ulo16): Use "indices" instead of "asm".
        * sparc.cpu (f-*): Delete UNSIGNED attribute.  Default is now UNSIGNED.
        Specify INT/UINT mode instead.
        (h-gr-indices): New pmacro.
        (h-gr32,h-gr64): Split up from h-gr.
        (h-a): Update type spec.  Use values instead of asm spec.
        (h-icc-[cnvz],h-xcc-[cnvz]): Use dsh instead of dnh.
        (h-y,h-annul-p): Ditto.
        (h-asr): Update keyword spec.
        (h-lo10,h-lo13,h-hi22): Update.
        (get-freg-spec,set-freg-spec): New pmacros.
        (h-fr32,h-fr64): Split up from h-fr.
        (rdd): Comment out get/set specs.
        (lo10,lo13,hi22): Use "handlers" instead of "asm".
        * sparc32.cpu (h-psr): Use dsh instead of dnh.
        (h-s,h-ps,h-pil,h-et,h-tbr,h-cwp,h-ag,h-ec,h-ef,h-fsr): Ditto.
        * sparc64.cpu (f-*): Delete UNSIGNED attribute.  Default is now
        UNSIGNED.  Specify INT/UINT mode instead.
        (h-*): Use dsh instead of dnh where appropriate.
        (h-ixcc): Update type spec.  Use "values" instead of "asm".
        (h-p,h-membarmask): Ditto.
        (membarmask): Use "handlers" instead of "asm".

        * hardware.scm (<hardware-base>): New member sem-name,type,indices,
        values,handlers,getters,setters plus accessors.
        (hw-mode-ok?,hw-default-mode): New procs.
        (<hardware-base>): Rename method new-mode to mode-ok?
        (<hardware-base>): New method get-index-mode.
        (hw-index-mode): New proc.
        (pc?): Delete, moved to operand.scm.
        (address?): New proc.
        (<hardware>): Delete.
        (<hw-asm>): Definition moved here from desc.scm.
        (keyword-parse): New proc.
        (hardware-parsers): Delete.
        (-parse-hw-type,-parse-hw-asm,-parse-hw-profile): Delete.
        (-hw-parse-indices,-hw-parse-values,-hw-parse-handlers): New procs.
        (-hw-parse-get,-hw-parse-set): New procs.
        (-hw-parse): Delete args aasm,profile,extra.  New args semantic-name,
        indices,values,handlers,get,set.  Rewrite.
        (-hw-read-extra): Delete.
        (-hw-read): Update.
        (define-hardware): Don't add object if not selected.
        (define-full-hardware): Ditto.
        (current-hw-sem-lookup,current-hw-sem-lookup-1): New procs.
        (<hw-register>): Member `type' moved to baseclass.  Delete member
        hw-asm.
        (<hw-register>,parse!): Rewrite.
        (<hw-register>): Delete methods get-rank,get-mode.
        (<hw-register>): Method new-mode renamed to mode-ok?
        (<hw-register>): New method get-index-mode.
        (<hw-pc>,parse!): Rewrite.
        (<hw-memory>): Member `type' moved to baseclass.  Delete member hw-asm.
        (<hw-memory>,parse!): Rewrite.
        (<hw-memory>): Delete methods get-rank,get-mode.
        (<hw-memory>): Method new-mode renamed to mode-ok?
        (<hw-memory>): New method get-index-mode.
        (<hw-immediate>): Member `type' moved to baseclass.  Delete member
        hw-asm.
        (<hw-immediate>,parse!): Rewrite.
        (<hw-immediate>): Delete methods get-rank,get-mode.
        (<hw-immediate>): Method new-mode renamed to mode-ok?
        (<hw-address>): Delete member hw-asm.
        (<hw-address>,parse!): Rewrite.
        (<hw-address>): Delete methods get-rank,get-mode.
        (<hw-address>): Method new-mode renamed to mode-ok?
        (hw-profilable?): Delete.
        (hardware-init!): Delete hardware-parsers reference.
        Update argument specs of command define-full-hardware.
        (hardware-builtin!): Update definitions of hardware builtins.
        * operand.scm (<operand>): New members hw-name,mode-name.
        Delete member op-asm.  New member handlers.
        (<operand>,make!): Update.
        (op:hw-name,op:mode-name,op:handlers): New procs.
        (op:type): Rewrite.
        (op:mode): Rewrite.
        (<operand>): New method get-index-mode.
        (<pc>,make!): Update.
        (op:new-mode): Rewrite.
        (operand-parsers): Delete.
        (-operand-parse): Rewrite.  Return #f if insn not selected.
        (-op-read-extra): Delete.
        (-operand-read): Update.
        (define-operand,define-full-operand): Update.
        (operand-init!): Delete operand-parsers reference.
        Update syntax of define-full-operand command.

        * insn.scm (-insn-parse): Rewrite.  Return #f if insn not selected.
        (define-full-insn): Update.
        * minsn.scm (-minsn-parse): Rewrite.  Return #f if insn not selected.
        (define-full-minsn): Update.

        * mode.scm (<mode>): New member class.
        (mode:class): New proc.
        (mode?): Rewrite.
        (-mode-parse): New arg class.
        (define-full-mode): Update.
        (mode-find): Rewrite.
        (mode-make-int,mode-make-uint): New procs.
        (mode-init!): Update syntax of define-full-mode command.
        (mode-builtin!): Update definitions of builtin modes.

        * model.scm (<profile>): Delete.

        * read.scm (keep-atlist?): New proc.
        (keep-multiple?): New proc.
        (<parser-list>): Delete.
        (add-parser!,parse-spec!): Delete.

        * rtl.scm (def-rtx-node): Prepend arg *tstate* to all handlers.
        (def-rtx-syntax-node): Ditto.
        (-rtx-traverse-debug?): New variable.
        (tstate-make): New proc.
        (tstate-expr-fn,tstate-op-fn,tstate-cond?,tstate-set?): New procs.
        (tstate-new-cond?,tstate-new-set?): New procs.
        (-rtx-traverse-normal): Delete args cond?,expr-fn,op-fn.  New arg
        tstate.  All callers updated.
        (-rtx-traverse-expr,-rtx-traverse-debug): Ditto.
        (-rtx-traverse-list,-rtx-traverse-operands): Ditto.
        (-build-operand!): Replace arg cond? with tstate.
        (-build-reg-operand!,-build-mem-operand!): Ditto.
        (-build-index-of-operand!): Update making of <operand> object.
        (s-ifield): New arg tstate.  All callers updated.
        (hw:): New arg tstate.  All callers updated.  Replace call to
        current-hw-lookup with current-hw-sem-lookup-1.
        (s-index-of): New arg tstate.  All callers updated.
        (reg:,mem:): Ditto.
        (-rtx-use-sem-fn?): New proc.
        (s-unop,s-binop,s-shop): Use it.  Only use semantic mode when using
        semantic cover fns.
        (s-convop): Only use semantic mode when using semantic cover fns.
        (s-cmpop): Call -rtx-use-sem-fn?.
        (s-cond,s-case): New arg tstate.  All callers updated.
        (s-parallel,s-sequence): Ditto.

        * rtx-funcs.scm (set,set-quiet:): Use SETRTX to mark the set dest.

        * types.scm (<scalar>): Rewrite implementation.
        (<integer>): Delete.
        (parse-type): Rewrite.

        * utils-cgen.scm (parse-handlers): New proc.

        * utils.scm (!=): New proc.

Tue Feb 23 12:10:29 1999  Doug Evans  <devans@canuck.cygnus.com>

        * pmacros.scm (-pmacro-expand): Fix typo.

1999-02-12  Doug Evans  <devans@casey.cygnus.com>

        * pmacros.scm (-pmacro-hex,-pmacro-upcase,-pmacro-downcase): New procs.
        (pmacros-init!): Install builtins .hex, .upcase, .downcase.
        * i960.cpu (build-hex2): New pmacro.
        (insn-opcode): Simplify.
        (insn-opcode2): Ditto.

        * cgen-sim.scm (catch-with-backtrace): Comment out debugging printf.
        * cgen-stest.scm (catch-with-backtrace): Ditto.

1999-02-11  Doug Evans  <devans@casey.cygnus.com>

        * pmacros.scm (-pmacro-lookup): Renamed from -pmacro-ref.
        All callers updated.
        (-pmacro-invoke): New proc.
        (-pmacro-sym,-pmacro-str): New procs.
        (-pmacro-iota,-pmacro-map,-pmacro-apply): New procs.
        (pmacros-init!): Install builtins .iota, .map, .apply.
        * sparc.cpu (cc-tests): Add CC_NZ,CC_Z,CC_GEU,CC_LU aliases.
        (h-fr): Simplify register name spec.
        * sparc64.cpu (cond-move-1): New arg mnemonic.  All callers updated.
        * utils.scm (num-args-ok?): New proc.

1999-02-10  Doug Evans  <devans@casey.cygnus.com>

        * pmacros.scm (-pmacro-error): New proc.
        (-pmacro-expand): Use it.
        (-pmacro-splice): New proc.
        (pmacros-init!): Install new builtin .splice.

        * sparc.cpu: Include sparc64.cpu when appropriate.
        (f-mmask,f-simm11): Moved to sparc64.cpu.
        (insn-fmt2): Add FLUSH,FLUSHW,IMPDEP1,IMPDEP2,MEMBAR,MOVCC.
        (ANNUL attribute): Delete.
        (test-* pmacros): New arg cc, all callers updated.
        (uncond-br-sem,cond-br-sem): New arg cc, all callers updated.
        * sparc32.cpu (atom-op): Moved to sparccom.cpu and renamed to
        atomic-opc.
        (ldstub,swap): Moved to sparccom.cpu.
        * sparc64.cpu: Add more insns.

1999-02-09  Doug Evans  <devans@casey.cygnus.com>

        * sim-cpu.scm (cgen-semantics.c): Replace CGEN_INSN_ATTR with
        CGEN_ATTR_VALUE.
        (cgen-sem-switch.c): Ditto.
        * sim-decode.scm (-gen-idesc-decls): struct idesc definition
        moved to cgen-engine.h.
        (-gen-insn-sem-type): Delete, struct insn_sem mvoed to cgen-engine.h.
        (-gen-idesc-init-fn,init_idesc): Lookup insn table via descriptor, not
        global.  Cache attributes and insn length in IDESC.
        * sim-model.scm (-gen-cpu-defns): Generate new func @cpu@_prepare_run.
        @cpu@_opcode renamed to @cpu@_get_idata.
        (-gen-mach-defns,@mach@_init_cpu): Don't initialize IDESC table here,
        done later underneath sim_resume.
        (@mach@_mach): Record @cpu@_prepare_run.
        * sim.scm (<hardware-base>,cxmake-get): New arg selector, all callers
        updated.
        (-hw-gen-set-quiet-pc): Ditto.
        (-hw-cxmake-get,-hw-gen-set-quiet): Ditto.
        (<hw-memory>,cxmake-get,gen-set-quiet): Ditto.
        (<hw-addr>,cxmake-get): Ditto.
        (<hw-iaddr>,cxmake-get): Ditto.
        (<pc>,cxmake-get): Ditto.
        (<operand>,cxmake-get,gen-set-quiet,gen-set-trace): Ditto.
        (-op-gen-set-quiet,-op-gen-set-quiet-parallel): Ditto.
        (-op-gen-set-trace,-op-gen-set-trace-parallel): Ditto.
        (<hw-pc>,gen-write): Use hw-selector-default.
        (<hw-register>,gen-write): Ditto.
        (<hw-memory>,gen-write): Ditto.
        (-gen-hw-index-raw,-gen-hw-index): Handle selector.
        (-gen-hw-selector): New proc.

        * desc.scm: New file.
        * desc-cpu.scm: New file.
        * opcodes.scm: Split up into several smaller files.
        * opc-asmdis.scm: New file.
        * opc-ibld.scm: New file.
        * opc-itab.scm: New file.
        * opc-opinst.scm: New file.
        * Makefile.am (desc): New target.
        (opcodes): Update args to cgen-opc.scm.
        * Makefile.in: Rebuild.
        * aclocal.m4: Rebuild.
        * config.in: Rebuild.
        * configure.in: Update arg to AC_INIT.
        Update version number to 0.7.0.  Change AM_EXEEXT to AC_EXEEXT.
        Update AC_PREREG arg to 2.13.  Change AM_PROG_INSTALL to
        AC_PROG_INSTALL.
        * configure: Rebuild.
        * cgen-gas.scm: Update files to load.
        * cgen-opc.scm: Ditto.  Reorganize option letters.
        * cgen-sim.scm: Update files to load.
        * cgen-stest.scm: Ditto.
        * dev.scm (cload): New app "DESC".
        (load-opc): Update files to load.
        (load-gtest,load-sim,load-stest): Ditto.

        * attr.scm (bool-attr?): New proc.
        (attr-list-enum-list): New proc.
        (-attr-sort): Rewrite.
        (attr-builtin!): Give ALIAS attribute a fixed index.
        * utils-cgen.scm (gen-attr-enum-decl): Call attr-list-enum-list to
        calculate attribute enum list.
        (gen-attr-mask): Subtract CGEN_ATTR_BOOL_OFFSET from attribute's enum.

        * insn.scm (-insn-parse): Renamed from parse-insn.

        * hardware.scm (-hw-parse): New arg errtxt, all callers updated.
        (-hw-read): Ditto.

        * mode.scm (-mode-parse): Renamed from parse-mode.

        * operand.scm (<operand>): New member `selector'.
        (<operand>,make!): Use default selector.
        (hw-selector-default): New variable.
        (hw-selector-default?): New proc.

        * pmacros.scm (pmacros-init!): New proc.
        (-pmacro-{make,name,arg-spec,transformer,comment}): New procs.
        (-env-set!): Delete.
        (-pmacro-expand): New proc apply-macro.
        Use it in scan-list,scan.  Scan list first, then see if macro
        invocation.
        (define-pmacro): Rewrite.
        * read.scm (-init-parse-cpu!): Call utils-init!,parse-init!.

        * rtl.scm (-simplify-for-compilation): Ensure at least one mach
        selected if (current-mach) seen.
        (rtx?): Renamed from rtx-uneval?, all callers updated.
        (<c-expr>,gen-set-quiet,gen-set-trace): New arg selector, all callers
        updated.
        (<c-expr-temp>,cxmake-get,gen-set-quiet,gen-set-trace): New arg
        selector, all callers updated.
        (hw:): New arg selector, all callers updated.  Delete old comments
        and code.
        (reg:,mem:): Handle selectors
        * rtx-funcs.scm (reg:): Handle selectors.

        * read.scm: Renamed from cpu.scm.
        (<command>): New class.
        (<reader>): New member commands.
        (reader-add-command!): New proc.
        (reader-lookup-command): New proc.
        (reader-error,-reader-process-expanded,reader-process): New procs.
        (reader-read-file!): New proc.
        (include): Call reader-read-file!.
        (cmd-if): New proc.
        (cpu-load): Call reader-read-file!.
        * utils.scm (num-args): New proc.
        * simplify.inc: New file.
        * *.scm: Delete def-foo procs.  Rewrite define-foo/define-full-foo
        procs.  Move define-normal-foo procs (and abbreviated forms) to
        simplify.inc.  Install define-foo/define-full-foo commands in foo-init!
        routines.
        * fr30.cpu: Include simplify.inc.
        * fr30.opc: CGEN_OPCODE_DESC renamed to CGEN_CPU_DESC.
        * i960.cpu: Include simplify.inc.
        * m32r.cpu: Include simplify.inc.
        * m32r.opc: CGEN_OPCODE_DESC renamed to CGEN_CPU_DESC.
        (CGEN_PRINT_NORMAL): Use CGEN_BOOL_ATTR.
        * sparc.cpu: Include simplify.inc.
        * sparc.opc: CGEN_OPCODE_DESC renamed to CGEN_CPU_DESC.
        * utils-cgen.scm (parse-error): Moved to read.scm.
        (sanitize): Rewrite.
        (utils-init!): New proc.

1999-02-02  Doug Evans  <devans@casey.cygnus.com>

        * sparc.cpu: New file.
        * sparc32.cpu: New file.
        * sparc64.cpu: New file.
        * sparccom.cpu: New file.
        * sparc.opc: New file.

1999-01-27  Frank Eigler  <fche@cygnus.com>

        * utils.scm (gen-copyright): New proc.

1999-01-27  Doug Evans  <devans@casey.cygnus.com>

        Parameterize rtl parsing, rather than having lots of little handlers.
        * rtl.scm (<rtx-func>): New members arg-types,arg-modes.
        Delete member traverse.
        (rtx:set-traverse!): Delete.
        (-rtx-valid-types,-rtx-valid-matches): New variables.
        (-rtx-func-lookup): Take symbol or <rtx-func> object as argument
        instead of expression.  All callers updated.
        (def-rtx-node): New args arg-types,arg-modes.
        (def-rtx-syntax-node): Ditto.
        (def-rtx-dual-mode): Ditto.
        (-rtx-macro-expand-list): Renamed from -rtx-macro-maybe-expand-list.
        All callers updated.
        (-rtx-macro-expand): Renamed from -rtx-macro-maybe-expand.
        All callers updated.
        (rtx-macro-expand): New proc.
        (-rtx-traverse-check-args): Delete.
        (-rtx-traverse-normal): Call -rtx-traverse-expr rather than calling
        an rtx specific traverser.
        (-rtx-any-mode?,-rtx-symornum?): New procs.
        (-rtx-traverse-rtx-list,-rtx-traverse-error): New proc.
        (-rtx-traverse-no-mode): Delete.
        (-rtx-traverse-syntax-expr,-rtx-traverse-syntax-no-mode): Delete.
        (-rtx-traverse-operands): Rewrite.
        (-rtx-traverse-expr): Rewrite.
        (rtx-traverse): Don't expand macros here, leave for caller to do.
        (rtx-simplify): Delete.
        (rtx-compile-time-constant?): Rewrite.  Handle FALSE/TRUE for boolean
        attributes.
        (rtx-true?,rtx-false?): Ditto.
        (-rtx-ref-type): Set dest is operand 1 now.
        (-simplify-for-compilation): New proc.
        (semantic-in-out-operands): Recognize regno as an alias for index-of.
        Expand macros before calling rtx-traverse.  Sort operands by name
        to avoid unnecessary semantic formats.
        (semantic-attrs): New proc.
        (rtx-uneval?): Handle (<rtx-func> ...).
        (s-boolifop): Delete arg mode.  All callers updated.
        * rtx-funcs.scm (all non-macros): Add arg-type and arg-mode specs.
        (eq-attr): New arg obj.
        (eq-attr:): Delete.
        * m32r.cpu (rach): Update calls to andif.

        * minsn.scm (-minsn-parse-expansion): Renamed from
        parse-minsn-expansion.
        (-minsn-parse): Renamed from parse-minsn.
        (-minsn-read): Renamed from read-minsn.
        (def-minsn): Don't check APPLICATION here.
        (def-full-minsn): New proc.
        (define-macro-insn): Check APPLICATION here.  Expand macros.
        (define-normal-macro-insn): Ditto.

        * utils.scm (word-value): New arg start-lsb?.
        (word-mask,word-extract): Ditto.
        (split-bits,powers-of-2): Use integer-expt instead of expt.
        (bit-set?): Handle 32 bit values (which are bignums).
        (cg-logand,cg-logxor): New functions.
        * ifield.scm (<ifield>,field-mask): Update call to word-mask.
        (<ifield>,field-value): Update call to word-value.
        (<ifield>,min-value): Use integer-expt instead of expt.
        (<ifield>,max-value): Ditto.

        * hardware.scm (<hw-register>,new-mode): Rename local mode to cur-mode.

        * insn.scm (def-full-insn): Discard ALIAS insns if simulator.

        Compute raw instruction format in addition to semantic based format.
        * iformat.scm: Delete members cti?,sem-in-ops,sem-out-ops.
        (<iformat> accessors): Rename accessors to ifmt-*.
        (<sformat>): New class.
        (fmt-enum): Renamed from fmt:enum.
        (-ifmt-search-key): Rewrite.
        (-sfmt-search-key): New proc.
        (ifmt-analyze): Rename arg include-sem-operands? to compute-sformat?
        Compute iformat and sformat search keys.
        (ifmt-build): Update.
        (sfmt-build): New proc.
        (-ifmt-lookup-ifmt!,-ifmt-lookup-sfmt!): New procs.
        (ifmt-compute!): Compute instruction format <iformat> based on
        instruction fields alone.  Compute new semantic format <sformat>
        based on instruction fields and semantic information.
        (ifmt:lookup): Delete.
        * mach.scm (<arch>): New member sfmt-list, plus accessors.
        (current-sfmt-list): New proc.
        * insn.scm (<insn>): Rename member fmt-tmp to tmp.
        Rename member fmt to ifmt.  New members fmt-desc, sfmt.
        (insn-length,insn-length-bytes): Update.
        (insn:mask-length,insn:mask): Update.
        (insn-lookup-op): Update.
        * gas-test.scm (gas-test-analyze!): Update.
        (gen-gas-test): Ditto.
        * sim-test.scm (sim-test-analyze!): Update.
        (gen-sim-test): Ditto.
        * opcodes.scm (gen-operand-instance-table): Update.
        (gen-operand-instance-ref): Ditto.
        (max-operand-instances): Use heuristic if semantics not parsed.
        (ifmt-opcode-operands): Renamed from fmt-opcode-operands.
        (opcodes-analyze!): Only scan semantics of building operand instance
        tables.
        * sim-cpu.scm (*) Update calls to <iformat>/<sformat> accessors.
        (-gen-extract-ifmt-macro): Renamed from -gen-extract-fmt-macro.
        * sim-decode.scm (*) Update calls to <iformat>/<sformat> accessors.
        (gen-sfmt-argvars-defns): Renamed from gen-ifmt-argvars-defns.
        (gen-sfmt-argvars-assigns): Renamed from gen-ifmt-argvars-assigns.
        * sim-model.scm (*) Update calls to <iformat>/<sformat> accessors.
        * sim.scm (*) Update calls to <iformat>/<sformat> accessors.

        * sim-decode.scm (usable-decode-bit?): Rename from decode-bit?
        New arg lsb0?  All callers updated.
        (decode-bits): New arg lsb0?.  All callers updated.
        (opcode-slots): Update call to bit-set?.  Call integer-expt instead
        of expt.
        (-gen-decode-bits): New arg lsb0?.  All callers updated.
        (build-slots): Call integer-expt instead of expt.
        (build-decode-table-entry): Handle crossing word boundaries better.
        (-gen-decode-switch): New arg lsb0?.  All callers updated.
        (-gen-extract-decls): Rename decode format entry from ifmt to sfmt.

        * enum.scm (define-enum): Rewrite.
        (define-normal-enum): Ditto.
        (def-full-insn-enum): New proc.
        (define-normal-insn-enum): Rewrite.

        * attr.scm (<bitset-attribute>,gen-value-for-defn): Ensure result is
        valid C.
        (<{integer,enum}-attribute>,gen-value-for-defn): Ditto.

        * dev.scm: Add sid support.
        
        * Makefile.am (opcodes,sim-arch,sim-cpu): New targets.
        (CLEANFILES): Add tmp-*.
        * Makefile.in: Rebuild.

        * doc/Makefile.am: New file.
        * doc/Makefile.in: New file.
        * doc/cgen.texi: New file.
        * Makefile.am (SUBDIRS): Define.
        * Makefile.in: Rebuild.
        * configure.in: Create doc/Makefile.
        * configure: Rebuild.

1999-01-18  Doug Evans  <devans@casey.cygnus.com>

        * insn.scm (insn:syn): Delete.

1999-01-15  Doug Evans  <devans@casey.cygnus.com>

        * fr30.cpu (model fr30-1): Add state variables load-regs,
        load-regs-pending.  Delete h-gr.  Clean up operand names of all units.
        * m32r.cpu (model m32r/d): Clean up operand names of u-exec.
        (model m32rx): Ditto.
        (addi): Simplify function unit usage spec.
        (ld-plus): Rewrite operand names in function unit usage spec.
        (mvtachi,mvtachi-a,mvtaclo,mvtaclo-a,st-plus,st-minus): Ditto.
        * sim.scm (<unit>,gen-profile-code): Redo how operand names are
        overridden.  Allow operand to appear in input and output spec.
        (<insn>,gen-profile-code): string-append -> string-list.

        * ifield.scm (define-ifield): Call pmacro-expand.
        (define-full-ifield,define-normal-ifield): Ditto.
        (define-multi-ifield,define-normal-multi-ifield): Ditto.

        * sim.scm (gen-argbuf-type): Keep leading part of ARGBUF same for
        with-scache and without-scache cases.

1999-01-14  Doug Evans  <devans@casey.cygnus.com>

        * fr30.cpu (fr30-1): Add state variable h-gr.
        Add units u-cti, u-load, u-store, u-ldm, u-stm.
        (all insns): First pass at providing cycle counts.
        * sim.scm (<unit>,gen-profile-code): Only check for output operands
        when initializing unit output operands, ditto for input operands.

        * insn.scm (insn-length,insn-length-bytes): New procs.
        * mach.scm (-adata-set-derived!): Use them.
        * sim-cpu.scm (-gen-sem-case): Ditto.

        * sim-cpu.scm (-gen-trace-record-type): PCADDR->IADDR.
        (-gen-write-case): Ditto.
        (gen-semantic-fn): Ditto.  Split into two:
        -gen-scache-semantic-fn and -gen-no-scache-semantic-fn.  Fix bitrot
        in non-scache case.
        (-gen-all-semantic-fns): Renamed from -gen-all-semantics.  Handle
        scache/no-scache appropriately.  All callers updated.
        (-gen-sem-case): PCADDR->IADDR.
        * sim.scm (gen-argbuf-type): PCADDR->IADDR.

        * sim-decode.scm (*): Replace string-append,string-map with
        string-list,string-list-map where the result is sufficiently large.
        (-gen-decode-insn-table): Go back to simple version for non-scache
        case: just record IDESC in decoder tables and leave field extraction
        to the caller.
        (-gen-decode-switch): Ditto.
        (-gen-decode-fn): Ditto.
        (-gen-extract-decls): Only emit format enum if with-scache?.
        * sim-model.scm (-gen-model-insn-fn): Extract ifields here in
        non-scache case.
        (-gen-model-insn-fns): Don't emit model fns for virtual insns.
        (-gen-insn-timing): Ditto.
        * sim.scm (gen-argbuf-type): Only output sem_fields union in
        with-scache case.

        * sim.scm (-hw-gen-fun-get): Use GET_<H-NAME> macro.
        (-hw-gen-fun-set): Use SET_<H-NAME> macro.

1999-01-12  Doug Evans  <devans@casey.cygnus.com>

        * cpu.scm (keep-mach-validate!): New proc.
        (include): New proc.

        * mach.scm (current-arch-mach-name-list): New proc.
        (-parse-arch-machs): Always return canonical form.
        (def-arch): Validate user specified machs to be kept.
        (def-mach-attr!): Simplify.

        * opcodes.scm (-opcodes-build-operand-instance-table?): New global.
        (option-init!): Initialize it.
        (option-set!): Set it.
        (gen-insn-table-entry): Emit 0 for operand instance ref if not
        output operand instance tables.
        (cgen-opc.in): Only output operand instance tables if asked to.

        * sim.scm (option-init!,option-set!): Clarify returned value.

        * sim.scm (gen-mach-bfd-name): Move from here.
        * utils-cgen.scm: To here.

1999-01-11  Doug Evans  <devans@casey.cygnus.com>

        * fr30.cpu (ilm): Fix comment field.
        (cond-branch): Remove explicit setting of COND-CTI, let cgen
        compute it.

        * rtl.scm (rtx-simplify,rtx-compile-time-constant?): New procs.
        (rtx-true?, rtx-false?): New procs.
        * rtx-funcs.scm (annul): Rename vpc to pc.
        (-rtx-traverse-if): Improve determination of whether then/else parts
        are conditionally executed.

        * sim.scm (-gen-argbuf-fields-union): Move definition of union to
        outer level.
        (gen-argbuf-type): Simplify generated definition (big sem_fields
        union moved outside).

1999-01-11  Ben Elliston  <bje@cygnus.com>

        * doc/porting.texi: New file.

        * doc/intro.texi: New file.
        (Layout): Use @example to insert preformatted ASCII text (such as
        diagrams). @code is inappropriate here.

1999-01-06  Doug Evans  <devans@casey.cygnus.com>

        * ifield.scm (-multi-ifield-read): Fix handling of insert/extract.

        * m32r.opc (print_hash): Cast dis_info.

        * sim-cpu.scm (-gen-hardware-types): Sanitize get/set macros.
        * sim.scm (<sim-hardware>,make!): Emit a comment for user-written
        get/set macros.

1999-01-05  Doug Evans  <devans@casey.cygnus.com>

        * i960.cpu (f-br-disp): Remove RELOC attribute.
        (f-ctrl-disp): Ditto.
        (callx-disp): set-quiet -> set for (reg h-gr 2).
        (callx-indirect,callx-indirect-offset): Ditto.

        * Makefile.am (gas-test): Fix dependencies.
        * Makefile.in: Rebuild.
        * cgen-gas.asm: File creation args are -<uppercase-letter>.
        * gas-test.scm (break-out-syntax,make-file-name): Delete.
        (gas-test-analyze!): Use syntax-break-out.
        * sim-test.scm (break-out-syntax,make-file-name): Delete.
        (sim-test-analyze!): Use syntax-break-out.
        (cgen-build.sh): Use gen-file-name.
        (cgen-allinsn.exp): Compute and pass all machs to run_sim_test.
        * insn.scm (syntax-break-out): New proc.
        * utils.scm (gen-file-name): New proc.

        * fixup.scm (nil,<?,<=?,>?): Delete.

        * utils.scm (count-true): Rewrite.

        * slib/sort.scm: Move sort.scm to slib directory.
        * cpu.scm: Update.

        * iformat.scm (ifmt-compute!): Record empty format.

        * rtl.scm (semantic-in-out-operands): Simplify by moving several
        internal procs outside.  Handle expression register numbers.
        Handle index-of.

        * rtx-funcs.scm (annul): Rename new_pc to vpc.

        * sim-cpu.scm (-gen-cpu-reg-access-defns): Define access fns for
        every register.
        (-gen-write-case): Pass vpc to SEM_BRANCH_FINI.
        (gen-semantic-fn,-gen-sem-case): Ditto.
        (cgen-cpu.c): Define WANT_CPU to @cpu@.
        (cgen-semantics.c): Ditto.
        * sim-decode.scm (-gen-extract-decls): Handle non-with-scache case.
        (gen-ifmt-argvars-defns): New proc.
        (gen-ifmt-argvars-assigns): New proc.
        (-gen-all-extractors): Delete FMT_EMPTY case, now handled like others.
        (-gen-decode-fn): Handle non-with-scache case.
        (cgen-decode.c): Define WANT_CPU to @cpu@.
        * sim-models.scm (-gen-mach-defns): Emit bfd name.
        (cgen-model.c): Define WANT_CPU to @cpu@.
        * sim.scm (gen-ifld-extract-argvar): New proc.
        (<sim-hardware>,make!): Don't emit [GS]ET_H_FOO macros for elements
        with FUN-ACCESS specified.
        (hw-fun-access?): New proc, as <hardware-base>:fun-access? method.
        (<hw-register>,gen-extract): New arg local?.
        (<hw-address>,gen-extract): Ditto.
        (-hw-cxmake-get): Handle non-with-scache case.
        (-hw-gen-set-quiet): Ditto.
        (<hw-address>,cxmake-get): Handle non-with-scache case.
        (gen-op-extract-argvar): New proc.
        (<operand>,gen-record-profile): Rewrite.
        (<operand>,gen-profile-code): Rewrite.
        (<unit>,gen-profile-code): Use -gen-argfld-ref.
        (gen-argbuf-fields-union): New proc.
        (gen-argbuf-type): Use it.  Handle non-scache case.

        * *.scm: class:foo procs renamed to class-foo.
        * attr.scm (<attribute>): New member `for'.
        (-attr-parse): New first value in list for default if
        none specified.
        (non-bool-attr-list,attr:add!): Delete.
        (def-attr): Use current-attr-add!.
        (atlist-attr-value-no-default): New proc.
        (attr-lookup-default): Handle boolean attributes.
        (gen-attr-enum): New proc.
        (-attr-remove-meta-attrs-alist): New proc.
        (attr-nub): New proc.
        (current-attr-list-for): New proc.
        (current-{ifld,hw,op,insn}-attr-list): New procs.
        (attr-builtin!): New proc.
        * cpu.scm (keep-obj?): Rewrite.
        (-init-parse-cpu!): Call arch-init!.
        (-install-builtin!): Call {attr,mode,ifield,insn}-builtin!.
        (-finish-parse-cpu!): Call arch-finish!.
        * enum.scm (enum-list,enum:add,enum:lookup): Delete.
        (def-enum,def-full-enum): Use current-enum-add!.
        (gen-obj-list-enums): New proc.
        * hardware.scm (hw:add!,hw:lookup): Delete.
        (def-hardware,def-hardware-ext): Use current-hw-add!.
        (hw:std-attrs,hw:attr-list): Delete.
        (hardware-builtin!): Define builtin hardware attributes.
        * ifield.scm (ifld:add!,ifld:lookup): Delete.
        (def-ifield,def-full-ifield): Use current-ifld-add!.
        (ifld:std-attrs,ifld:attr-list): Delete.
        (ifield-builtin!): New proc.
        * insn.scm (insn:add!,insn:lookup): Delete.
        (def-full-insn): Use current-insn-add!.
        (insn:std-attrs): Delete.
        (insn-builtin!): New proc.
        * mach.scm (<arch>): New members attr-list,enum-list,op-list,
        minsn-list.
        (<arch-data>): New member machs.
        (current-attr-list,current-enum-list): New procs.
        (current-op-list,current-minsn-list): New procs.
        (current-{attr,enum,ifld,op,hw,insn,minsn,cpu,mach,model}-add!): Ditto.
        (current-{attr,enum,ifld,op,hw,insn,minsn,cpu,mach,model}-lookup):
        Ditto.
        (-parse-arch-machs): New proc.
        (-arch-parse): New arg machs, all callers updated.
        (-arch-read): Handle machs spec.
        (def-arch): Define MACH attribute here.
        (mach-init!,mach-finish!): Not here.
        (cpu:add!,cpu:lookup): Delete.
        (def-cpu): Use current-cpu-add!.
        (<mach>): New member bfd-name.
        (-mach-parse): New arg bfd-name, all callers updated.
        (-mach-read): Handle bfd-name spec.
        (mach:add!,mach:lookup): Delete.
        (def-mach): Use current-mach-add!.
        (def-mach-attr!): New proc.
        (arch-init!): New proc.
        (arch-finish!): New proc.  Reverse all object lists here.
        * minsn.scm (minsn-list,minsn-add!,minsn:lookup): Delete.
        (def-minsn): Use current-minsn-add!.  Ignore minsn if mach not kept.
        (define-normal-macro-insn): Ignore minsn if mach not kept.
        * mode.scm (mode-builtin!): New proc.
        * model.scm (model:add!,model:lookup): Delete.
        (def-model): Use current-model-add!.
        * opcodes.scm (insn:attr-list): Delete.
        (attr-bool-gen-decl,attr-bool-gen-defn): New procs.
        (gen-attr-table-defn): Emit value for default.
        (gen-attr-table-defns): Emit bool_attr.  Emit ifield attr table.
        (op:attr-list): Delete.
        (gen-operand-decls,gen-insn-decls): New proc.
        (compute-insn-attr-list): Delete.
        (cgen-opc.h): Reorganize and simplify.
        * operand.scm (-operand-list,operand-list,op:add,op:lookup): Delete.
        (def-operand,def-full-operand): Use current-op-add!.
        (op:std-attrs): Delete.
        (operand-enum): Delete.
        (operand-builtin!): Define builtin operand attrs.
        * utils-cgen.scm (sanitize): Update calls to lookup procs.
        (gen-attr-enum-decl): Use gen-obj-list-enums.
        (gen-obj-attr-defn): Renamed from gen-attr-defn, all callers updated.
        Rewrite.
        * fr30.cpu (define-arch): Add machs spec.
        (f-i4): SIGNED attribute -> !UNSIGNED.
        (f-disp8,f-disp9,f-disp10,f-s10,f-rel9,f-rel12): Ditto.
        (HASH-PREFIX): Define operand attribute.
        (NOT-IN-DELAY-SLOT): Define insn attribute.
        * i960.cpu (define-arch): Add machs spec.
        * m32r.cpu (define-arch): Add machs spec.
        (h-hi16): Remove UNSIGNED,SIGN-OPT attributes.
        (HASH-PREFIX): Define operand attribute.
        (FILL-SLOT): Define insn attribute.

Thu Dec 17 17:15:06 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.cpu (stilm): Correct mask for and operation.

1998-12-17  Doug Evans  <devans@casey.cygnus.com>

        * sim-test.scm (cgen-build.sh): Use `mach' to specify machs, not `cpu'.
        Replace START/EXIT with start/pass.
        (gen-sim-test): Delete ".text".

Wed Dec 16 16:16:39 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.cpu (cond-branch): Conditional branches not allowed in delay slots.

Tue Dec 15 17:30:01 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.cpu: Add NOT-IN-DELAY-SLOT as appropriate.
        (h-sbit): Make it FUN-ACCESS.
        (h-gr): Reorder so that general regs are always printed by number.

1998-12-14  James E Wilson  <wilson@wilson-pc.cygnus.com>

        * i960.cpu (flushreg): Use nop.

1998-12-14  Doug Evans  <devans@casey.cygnus.com>

        * m32r.cpu (default-alignment): Specify.
        * mach.scm (<arch-data>): New member default-alignment.
        (adata:default-alignment): New proc.
        (current-arch-default-alignment): New proc.
        (-arch-parse): New arg default-alignment.
        (parse-alignment): New proc.
        (-arch-read): Handle default-alignment spec.

        * rtx-funcs.scm (attr:): Pass attr-name through gen-c-symbol.

        * insn.scm (f-%): Delete.
        * sim-cpu.scm (gen-define-fields): Delete support for f-%.  Can
        be readded if proved useful.
        (gen-extract-fields): Ditto.  Use gen-ifetch.
        * sim.scm (<hw-memory>,cxmake-get): Pass pc to GETMEM*.
        (<hw-memory>,gen-set-quiet): Pass pc to SETMEM*.

Mon Dec 14 16:20:59 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.cpu (div2): Set zbit properly when remainder not zero.

1998-12-14  Dave Brolley  <brolley@cygnus.com>

        * fr30.cpu: Remove stub macros.
        (div1): Shift bits from mdl into mdh. Don't use addc/subc.
        (div2): Don't use addc/subc.

1998-12-11  Doug Evans  <devans@casey.cygnus.com>

        * utils-cgen.scm (gen-obj-sanitize): Only catch spelling errors
        if opcodes.

Thu Dec 10 18:37:34 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.cpu (div0s,div0u,div1,div2,div3,div4s): Implemented.

Thu Dec 10 12:28:53 1998  Doug Evans  <devans@canuck.cygnus.com>

        * cpu.scm (keep-all?): New proc.
        (assert-keep-all): Use it.
        * opcodes.scm (gen-ifmt-table-1): Use gen-obj-sanitize.
        * utils-cgen.scm (gen-obj-sanitize): Handle macro-insns.
        Check for spelling errors.

1998-12-09  Doug Evans  <devans@casey.cygnus.com>

        * rtl.scm (s-convop): Call -rtx-sem-mode.

Tue Dec  8 10:58:38 1998  Doug Evans  <devans@canuck.cygnus.com>

        * hardware.scm (-parse-hw-type): parse! no longer returns a result.
        (-parse-hw-profile): Ditto.
        (<hw-register>, parse!): Return `void' result.
        (<hw-pc>, parse!): Ditto.
        (<hw-memory>, parse!): Ditto.
        (<hw-immediate>, parse!): Ditto.
        (<hw-address>, parse!): Ditto.

        * ifield.scm (-ifield-parse): Validate encode/decode fields.
        (-ifld-parse-encode-decode): New proc.
        (-ifld-parse-encode,-ifld-parse-decode): New proc.
        (-multi-ifield-parse): Set encode/decode to #f.
        (ifld:decode-mode): New proc.
        * utils.scm (nub): Rewrite.
        * operand.scm (op-nub): Rewrite.
        * sim.scm (<ifield>, gen-type): Rewrite.
        (-gen-ifld-argbuf-defn): New proc.
        (gen-ifld-extract,gen-ifld-trace-extract): New procs.
        (<sim-hardware>): Forward gen-trace-extract onto `type'.
        Ditto for needed-iflds.  gen-argbuf-defn renamed from gen-argbuf-elm.
        (<hardware-base>): New method needed-iflds.  gen-argbuf-defn
        renamed from gen-argbuf-elm, return "".  Rewrite gen-extract.
        New method gen-trace-extract.
        (<hw-register>): New method needed-iflds.  gen-argbuf-defn renamed
        from gen-argbuf-elm, return "" if not caching register address.
        Rewrite gen-extract.  New method gen-trace-extract.
        (<hw-address>): New methods needed-iflds, gen-argbuf-defn,
        gen-extract, gen-trace-extract, cxmake-get.
        (<hw-iaddress>): New method cxmake-get.
        (op-needed-iflds): New proc.
        (<operand>): Delete methods gen-argbuf-elm, gen-extract.
        (-gen-op-argbuf-defn): New proc.
        (gen-op-extract): Renamed from op:extract.
        (gen-op-trace-extract): Renamed from op:trace-extract.
        (fmt-extractable-operands): Renamed from fmt-semantic-operands
        and rewritten.
        (gen-argbuf-elm): Rewrite.
        * sim-decode.scm (-gen-record-args): Update.

        * sim.scm (c-cpu-macro): Renamed from cpu-deref.  All uses changed.

        * pmacros.scm (-pmacro-expand): Handle procedural macros in
        argument position.  Flag symbolic macros in function position as
        an error.
        (define-pmacro): Handle quoting in definition of symbolic macros.
        (pmacro-trace): Call -pmacro-expand, not -pmacro-ref.

Tue Dec  8 13:06:44 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.opc (parse_register_list): Account for reverse masks
        for load and store.
        (print_register_list): Ditto.
        (parse_low_register_list_ld): New function.
        (parse_hi_register_list_ld): New function.
        (parse_low_register_list_st): New function.
        (parse_hi_register_list_st): New function.
        (print_hi_register_list_ld): New function.
        (print_hi_register_list_st): New function.
        (print_low_register_list_ld): New function.
        (print_low_register_list_st): New function.
        * fr30.cpu (ldr15dr): Implement workaround.
        (ldm0,ldm1,stm0,stm1): Implemented.

1998-12-08  Doug Evans  <devans@casey.cygnus.com>

        * configure.in: Rename --with-hobbit to --with-cgen-hobbit.
        * configure: Regenerate.
        * Makefile.am (WITH_HOBBIT): Update.
        (cgen-hob.c): Remove Makefile dependency.
        (cgen.o): Depend on cgen-gh.h, config.h.
        * Makefile.in: Regenerate.
        * aclocal.m4: Regenerate.

1998-12-07  James E Wilson  <wilson@wilson-pc.cygnus.com>

        * i960.cpu, i960.opc: New files.

Mon Dec  7 14:30:24 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.opc (parse_register_number): New function.
        (parse_register_list): New function.
        (parse_low_register_list): Use parse_register_list.
        (parse_hi_register_list): Use parse_register_list.
        * fr30.cpu (sth): Fix assembler syntax. Implement more
        insns.

Fri Dec  4 16:07:13 1998  Doug Evans  <devans@canuck.cygnus.com>

        * sim-cpu.scm (cgen-sem-switch.c): Update definition of TRACE_RESULT.
        * sim-decode.scm (-gen-record-args): Update call to TRACE_EXTRACT.
        * sim.scm (-op-gen-set-trace): Update call to TRACE_RESULT.
        (-op-gen-set-trace-parallel): Ditto.
        (gen-argbuf-type): New ARGBUF members trace_p,profile_p;

        * fr30.cpu (call,calld): Fix setting of pc.
        (f-op5): Fix start bit number.

Fri Dec  4 17:06:28 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.cpu (st): Fix operand ordering. Implement more
        insns.

Thu Dec  3 23:59:40 1998  Doug Evans  <devans@canuck.cygnus.com>

        * ifield.scm (ifld:mode,ifld:hw-type): New procs.
        * iformat.scm (fmt-opcode-operands): Move to opcodes.scm.
        (fmt-semantic-operands): Move to sim.scm.
        * opcodes.scm (fmt-opcode-operands): Moved here from iformat.scm.
        * operand.scm (<hw-index>): New member `name'.  All builders updated.
        (<hw-index>): New method get-name.
        (op-profilable?): Moved to sim.scm.
        (op-nub): New proc.
        * sim.scm (fmt-semantic-operands): Moved here from iformat.scm.
        (op-profilable?): Moved here from operand.scm.
        (gen-extract-type): Delete.
        (c-argfld-macro): Renamed from c-ifield-macro.  All uses updated.
        (-gen-argfld-ref): New proc.
        (-gen-ifld-argfld-name): New proc.
        (gen-ifld-argfld-ref): Renamed from -gen-ifld-ref.  All uses updated.
        (-gen-ifld-decoded-val): Renamed from -gen-ifld-raw-val.
        (-gen-hw-index-argfld-name,-gen-hw-index-argfld-ref): New procs.
        (<hardware-base>): Delete method gen-extract-type.  New method
        gen-argbuf-elm.
        (<hw-register): Ditto.  Update method gen-extract.
        (<operand>, method gen-argbuf-elm): Rewrite.
        * rtl.scm (semantic-in-out-operands): Handle (ifield f-name).
        (s-cmpop): Fix handling of eq,ne for unsigned modes.
        * rtx-funcs.scm (eq,ne,lt,le,gt,ge,ltu,leu,gtu,geu): Update.

        * sim-decode.scm (-gen-record-args): Tweak.

        * sim.scm (gen-argbuf-elm): Handle case of all constant opcode fields.

Thu Dec  3 14:23:27 1998  Dave Brolley  <brolley@cygnus.com>

        * doc/porting: Fix typo: gas->sim.
        * fr30.opc (print_m4): New function.
        * fr30.cpu: Implemented many insns.

Thu Dec  3 00:03:16 1998  Doug Evans  <devans@canuck.cygnus.com>

        * rtl.scm (build-reg-operand!): Remove redundant setting of hw-name.

        * fr30.cpu (f-rel9): Delete RELOC attribute.
        (f-rel12): Add PCREL-ADDR attribute.
        (label9): Make an h-iaddr, not h-uint.  Delete asm print spec.
        (label12): Delete PCREL-ADDR attribute.  Make an h-iaddr, not h-sint.
        * fr30.opc (print_label9): Delete.

        * iformat.scm (ifmt-analyze): Check attributes derived from semantic
        code for CTI indicators.
        * insn.scm (insn-cti?): Simplify.
        * utils-cgen.scm (atlist:cti?): New proc.

1998-11-30  Doug Evans  <devans@casey.cygnus.com>

        * fr30.cpu (arch): default-insn-bitsize -> default-insn-word-bitsize.
        (f-i20-4,f-i20-16,f-i20): New fields.
        (i20): New operand.
        (ldi8): Implement.
        (ldi20): New insn.
        (ldi32m): Delete.
        (jmpd): Implement.
        * fr30.opc (CGEN_DIS_HASH_SIZE,CGEN_DIS_HASH): Define in opc.h.
        * m32r.cpu (arch): default-insn-bitsize -> default-insn-word-bitsize.
        * mach.scm (arch-data): Ditto.
        (current-arch-default-insn-word-bitsize): Renamed from
        current-arch-default-insn-bitsize [ya, that's a pretty long name].
        (-arch-read): Update.

        * hardware.scm (hw:attr-list): Move here ...
        * opcodes.scm: ... from here.

        * ifield.scm (fld:bitrange): Delete.
        (fld:word-offset,fld:word-length): New procs.
        (ifield?): Use class-instance.
        (<ifield>, method field-start): Rewrite.
        (ifld:enum): New proc.
        (<ifield>, methods field-mask,field-value): Rewrite.
        (-ifield-parse): Rewrite.
        (<multi-ifield> support): Rewrite.
        (ifld-beyond-base?): Rewrite.
        (ifld:std-attrs): New variable.
        (ifld:attr-list): New proc.
        * iformat.scm (-compute-insn-mask): Rewrite.
        * insn.scm (-parse-insn-format): New arg errtxt, all callers updated.
        Simplify.
        (-parse-insn-format-symbol,-parse-insn-format-list): New procs.
        * opcodes.scm (<hardware>): No longer forward gen-insert,gen-extract
        onto type.
        (<operand>): Ditto.  Forward onto index instead.
        (gen-ifld-decls,gen-ifld-defns): New procs.
        (ifld:insert,ifld:extract): New procs.
        (<ifield>): New methods gen-insert, gen-extract.
        (<multi-ifield>): Ditto.
        (<hw-index>): Forward gen-insert,gen-extract onto value.
        (<hw-asm>): Delete insert/extract support.
        (<hw-register,hw-memory,hw-immediate>): Ditto.
        (gen-hash-defines): Use string-list.
        Define CGEN_MAX_IFMT_OPERANDS.
        (gen-switch): Use string-list,string-list-map.
        (gen-fget-switch,gen-fset-switch): Use string-list.
        (gen-parse-switch,gen-insert-switch): Ditto.
        (gen-extract-switch,gen-print-switch): Ditto.
        (gen-insert-switch,gen-extract-switch): New local `total_length'.
        (gen-ifmt-table-1,gen-ifmt-table): New procs.
        (gen-ifmt-entry): Renamed from gen-iformat-entry, rewrite.
        (gen-ivalue-entry): New proc.
        (gen-insn-table-entry): Use string-list.  Update iformat,ivalue
        computation.  Use 0 for operand ref table if ALIAS insn.
        (gen-minsn-table-entry): Use string-list.
        (gen-macro-insn-table): Temporarily emit format tables for ALIAS insns.
        (gen-opcode-open): Record address of ifield table.
        (cgen-opc.h): Call gen-ifld-decls.
        (cgen-opc.in): Call gen-ifld-defns, gen-ifmt-table.
        * types.scm (<bitrange>): New members word-offset,word-length.
        Delete member total-length.  Delete methods start,mask,value.
        (bitrange:word-offset,bitrange:word-length): New procs.
        * sim-cpu.scm (gen-define-fields): Simplify.
        (gen-extract-fields): Simplify.
        * sim.scm (<ifield>, gen-ifld-extract): Rewrite.
        (<ifield>): New methods gen-ifld-extract-decl.
        Delete method gen-ifld-extract-beyond.
        (<multi-ifield>): New methods gen-ifld-extract-decl.
        (<multi-ifield>, method gen-ifld-extract): Implement.
        (-gen-ifld-extract-base,-gen-ifld-extract-beyond): New procs.
        (gen-ifld-exttact,gen-ifld-extract-beyond): Delete.

        * rtl.scm (-rtx-traverse-no-mode): Process operands.
        (-rtx-traverse-syntax-no-mode): New proc.
        (semantic-in-out-operands): Watch for `delay' and add DELAY-SLOT attr.
        (s-ifield): New proc.
        (s-shop): Don't prepend `unsigned' for unsigned modes.
        * rtx-funcs.scm (ifield): New rtx function.
        (ref,symbol): Use standard -rtx-traverse-syntax-no-mode.
        (delay): New rtx function.
        * insn.scm (insn:std-attrs): Add DELAY-SLOT.

        * cos.scm (-elm-make-method-getter): Fix typo.

        * utils.scm (backslash): Handle lists of strings.

Thu Nov 26 11:47:29 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.cpu (f-rel9): Correct for pc+2.
        (label9): Use print_label9.
        * fr30.opc (print_label9): New function.

Tue Nov 24 11:19:35 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.cpu: Change $r13,$r14,$r15 to uppercase.
        * fr30.opc (parse_low_register_list): Renamed.
        (parse_hi_register_list): Renamed.
        (print_hi_register_list): Renamed.
        (print_low_register_list): Renamed.

Mon Nov 23 18:26:36 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.cpu (f-rel9): Now a pc relative offset.

1998-11-23  Doug Evans  <devans@casey.cygnus.com>

        * opcodes.scm (op-asm): Move to here, from operands.scm.
        (<op-asm>, method parse!): Validate arguments.
        (<operand>, method gen-function-name): Fix thinko.
        * operand.scm (<operand>, method make!): Don't set op-asm here.
        * utils.scm (list-elements-ok?): New proc.

        * opcodes.scm: Clean up pass.

1998-11-20  Doug Evans  <devans@tobor.to.cygnus.com>

        * fr30.cpu (int): Defer saving of ps,pc and setting ibit,sbit to
        the fr30_int function.
        (h-cr): Remove PROFILE,CACHE-ADDR attributes.
        (h-dr): Add FUN-ACCESS attribute.

1998-11-20  James E Wilson  <wilson@wilson-pc.cygnus.com>

        * sim-model.scm (-gen-mach-defns): Use gen-sym instead of obj:name
        for C symbol for models array.

Thu Nov 19 15:57:45 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.opc (parse_reglist_low): New function.
        (parse_reglist_hi): New function.
        (print_reglist_low): New function.
        (print_reglist_hi): New function.
        * fr30.cpu: Finish remaining insn stubs.

1998-11-19  Doug Evans  <devans@tobor.to.cygnus.com>

        * sim.scm (-gen-extract-word): Handle fields shorter than entire word.

        * fr30.cpu (ldi32m): Don't use for disassembly.

Wed Nov 18 21:34:41 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.cpu (int): Implement it.

1998-11-18  Doug Evans  <devans@casey.cygnus.com>

        * rtx-funcs.scm (nop): Fix C code.

        * rtl.scm (semantic-in-out-operands): Fix setting of sem-attrs.

        * fr30.cpu (f-i32): New ifield.
        (i32): New operand.
        (ldi32): New insn.
        (ldi32m): New macro insn.
        (inte): Provide simple version for now.

        * sim-arch.scm: New file.
        * sim.scm: Move architecture support generation to sim-arch.scm.
        * cgen-sim.scm: Load sim-arch.scm.
        * dev.scm: Ditto.

        * hardware.scm (pc?) New proc.
        (class <hardware-base>): Rewrite method 'pc?.
        (class <hardware>): Forward 'pc? to the hardware type.
        (class <hw-pc>): New method 'pc?.

        Add support for variable length ISAs.
        * ifield.scm (ifld-beyond-base?): New proc.
        * m32r.cpu: Remove integral-insn? spec.
        * mach.scm (arch:derived,arch:set-derived!): New procs.
        (arch:app-data,arch:set-app-data!): New procs.
        (class <arch>): New members derived, app-data.
        (class <cpu>): Delete member integral-insn?.
        (cpu:integral-insn?): Delete.
        (-cpu-parse): Delete arg integral-insn?.  All callers updated.
        (-cpu-read): Delete integral-insn? support.
        (state:decode-assist): Delete.
        (state:int-insn?): Delete.
        (<derived-arch-data>): New class.
        (-adata-set-derived!): New proc.
        (mach-finish!): Call it.
        * opcodes.scm (<hw-asm>, method gen-extract): Pass pc to C handler.
        (gen-operand-instance): Add COND_REF support.
        (gen-operand-instance-table): Ditto.
        (gen-hash-defines): Update.
        (gen-extract-switch): Update type of `insn_value' arg.
        (gen-opcode-open): Update type of `value' arg of dis_hash_insn.
        * rtl.scm (-rtx-ref-type): Renamed from -rtx-set?.  All callers
        updated.
        (semantic-in-out-operands): Compute UNCOND-CTI,COND-CTI from rtl.
        * sim-cpu.scm (gen-define-fields): Create vars to hold insn value
        beyond the base insn (for large insns).
        (-gen-extract-beyond-var-list): New proc.
        (gen-extract-fields): Handle large insns.
        (-gen-write-case): Update sem_arg computation.
        Update initial vpc computation.
        (gen-semantic-fn): Ditto.  Update type of `insn'.
        (-gen-sem-case): Update sem_arg computation.
        Update initial vpc computation.
        * sim.scm (<ifield>, gen-ifld-extract): Renamed from `extract'.
        (-gen-extract-word): New proc.
        (<ifield>): New method gen-ifld-extract-beyond.
        (gen-ifld-extract-beyond): New proc.
        * types.scm (bitrange-overlap?): New proc.

        * utils.scm (bits->bytes): New proc.
        (bytes->bits): New proc.

        Move extraction support into decoder.
        * sim-cpu.scm (-gen-record-args,-gen-record-profile-args,
        -gen-extractor,-gen-all-extractors,cgen-extract.c): Move extraction
        support to sim-decode.scm.
        * sim-decode.scm (-gen-decode-insn-table): Change decoder data to
        be array of IDESC,FMT entries.  Make the array const.
        (-gen-gcc-label-table): Make array const.
        (-gen-decode-switch): Branch to extraction code after insn has been
        identified.
        (-gen-decode-insn-globals): Delete extract handler from
        @cpu@_insn_sem.
        (gen-decode-fn): Add extraction support.
        (-gen-sem-fn-decls): Delete extraction fn decls.
        (-gen-idesc-decls): Update @cpu@_decode decl.
        (-gen-idesc-init-fn): Delete extraction support.
        (-gen-extract-decls): New proc.

        * sim-cpu.scm (cgen-sem-switch.c): Update switch test.
        (sim-finish!): Surround pbb only code with #if WITH_SCACHE_PBB.

        * sim-decode.scm (build-decode-table-entry): New arg invalid insn.
        All callers updated.
        (table-entry:make): Record insn value as insn object, not name.
        All uses updated.

        * hobbit.scm (path_basename): Renamed from `basename' to avoid
        collision with C function.
        (path_dirname): Similarily.
        * hobbit.c,hobbit.h: Rebuild.

Wed Nov 18 11:26:17 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.cpu (dir2r15-predec-stub): Reference to R15 must be indirect.

Mon Nov 16 19:19:50 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.cpu: Implement more instruction stubs.

Thu Nov 12 19:20:28 1998  Dave Brolley  <brolley@cygnus.com>

        * fr30.cpu: Implement more instruction stubs.

Tue Nov 10 10:53:55 1998  Doug Evans  <devans@canuck.cygnus.com>

        * rtl.scm (-rtx-expr-mode-name): Handle sequence locals.

        * rtx-funcs.scm (zflag:,zflag,nflag:,nflag): New rtx fns.

        * operand.scm (<pc>, method make!): FAKE renamed to SEM-ONLY.
        (op:std-attrs): Ditto.
        * opcodes.scm (gen-operand-instance): Ditto.
        (gen-switch): Ditto.
        * m32r.cpu (condbit,accum): Update.
        * fr30.cpu (nbit,vbit,zbit,cbit): Update.

Mon Nov  9 14:30:51 1998  Doug Evans  <devans@seba.cygnus.com>

        * enum.scm (-enum-read): Fix typo.

        * iformat.scm (-ifmt-search-key): Simplify a little.

Mon Nov  9 12:07:56 1998  Dave Brolley  <brolley@cygnus.com>

        * doc/porting: semantics.c -> sem.c.
        * Makefile.in: Regenerate.
        * fr30.cpu (add): Change ADD to add. Add more registers and set
        status bits on 'add' instruction.
        
Fri Nov  6 18:15:05 1998  James E Wilson  <wilson@wilson-pc.cygnus.com>

        * sim.scm (-gen-arch-model-decls):  Default MAX_UNITS to 1 instead
        of 0.

Fri Nov  6 17:43:16 1998  Doug Evans  <devans@seba.cygnus.com>

        * minsn.scm (minsn:enum): Update, call current-arch-name.

        * pmacros.scm (-pmacro-expand): Make `cep' a variable.

        * Makefile.am (CGEN_HOB_INPUT_FILES): Add pmacros.scm,enum.scm,
        mach.scm,model.scm,types.scm,ifield.scm,minsn.scm.
        (ARCH,CGEN,CGENFLAGS): New variables.
        (gas-test,sim-test): New rules.
        * Makefile.in: Rebuild.
        * configure.in (arch): Define.
        * configure: Rebuild.

        * cgen-hob.scm (*UNSPECIFIED*): Renamed from UNSPECIFIED.
        * All .scm files: Ditto.

        * dev.scm: Fix gas-test call to cpu-load.
        * gas-test.scm: Clean up pass to remove bit-rot.
        * sim-test.scm: Ditto.

        * enum.scm (read-enum): Fix typo in `vals' handling.

        * hardware.scm (-parse-hw-type): Fix typo.
        (parse-hardware): Rename `asm' to `aasm' to avoid GCC reserved word.
        (def-hardware,define-normal-hardware): Ditto.

        * hobbit.scm (*case-sensitive-flag*): New configuration variable.
        (display-var): Use it.
        * hobbit.c: Rebuild.
        * hobbit.h: Rebuild.

        * ifield.scm (-ifield-read): Rename local `length' to `length-' to
        avoid hobbit problem.
        * mach.scm (-cpu-read): Rename local `parallel-insns' to
        `parallel-insns-' to avoid hobbit problem.

Fri Nov  6 17:19:12 1998  Doug Evans  <devans@canuck.cygnus.com>

        * m32r.opc (parse_hi16): Fix call to cgen_parse_address.
        (parse_slo16,parse_ulo16): Ditto.
        * opcodes.scm (<hw-address>, method gen-parse): Ditto.

Thu Nov  5 13:04:53 1998  Doug Evans  <devans@canuck.cygnus.com>

        * Makefile.am (GUILELDFLAGS,GUILELDADD): New variables.
        (cgen_LDFLAGS,cgen_LDADD,hob.x): Use them.
        * Makefile.in: Rebuild.
        * insn.scm (define-normal-insn): Expand pmacros.
        * mode.scm (<mode>): New member `host?'.  All uses updated.
        (mode:host?): New proc.
        * rtl.scm (define-rtx-node): Make a syntax proc, not a macro.
        (define-rtx-syntax-node,define-rtx-macro-node): Ditto.
        (define-rtx-dual-mode): Ditto.
        (s-index-of): New proc.
        (s-unop): Use plain C for host mode operations.
        (s-binop,s-shop,s-boolifop,s-cmpop): Ditto.
        * rtx-funcs.scm (index-of): New rtx function.
        * sim.scm (<hw-index>): New method cxmake-get.

Wed Nov  4 23:58:08 1998  Doug Evans  <devans@seba.cygnus.com>

        * sim-cpu.scm (-gen-engine-decls): Delete.

Wed Nov  4 18:40:47 1998  Dave Brolley  <brolley@cygnus.com>

        * doc/rtl (Example): Correct Typo.
        * doc/porting: Add 'make dep' step to opcodes port instructions.
        * fr30.opc: New file.
        * fr30.cpu: New file.

Wed Oct 28 13:36:15 1998  Doug Evans  <devans@canuck.cygnus.com>

        * configure.in: Handle guile $exec_prefix = $prefix/foo.
        * Makefile.am (GUILEINCDIR): New variable.
        (INCLUDES): Use it.
        * configure: Regenerate.
        * Makefile.in: Ditto.
        * aclocal.m4: Ditto.

Mon Oct 19 13:19:34 1998  Doug Evans  <devans@seba.cygnus.com>

        * sim-cpu.scm (cgen-extract.c): Delete #include cpu-sim.h
        (cgen-semantics.c): Ditto.
        * sim-decode.scm (cgen-decode.c): Delete #include cpu-sim.h,cpu-opc.h.
        * sim-model.scm (cgen-model.c): Ditto.
        * sim.scm (cgen-arch.h): Delete #include @arch@-opc.h.
        (cgen-arch.c): Delete #include cpu-sim.h,cpu-opc.h.

        * opcodes.scm (read-cpu.opc): Handle empty file.

        * cos.scm (-elm-make-method-setter): Fix typo.

        * cpu.scm (-init-parse-cpu!): Call types-init!.
        (-finish-parse-cpu!): Call types-finish!.
        * ifield.scm (<ifield>): Delete members start,length.
        New member bitrange.
        (<ifield>, methods field-start,field-length): Update.
        (fld:start): New arg insn-len.  All callers updated.
        (<ifield>, methods field-mask,field-value): Update.
        (-ifield-parse): Update.
        (ifield-init!): Update.
        * iformat.scm (compute-insn-length): Simplify.
        (compute-insn-mask): Update.
        * insn.scm (insn:value): Update.
        * mach.scm (<arch-data>): New members default-insn-bitsize,insn-lsb0?.
        (current-arch-default-insn-bitsize): New proc.
        (current-arch-insn-lsb0?): New proc.
        (-arch-parse,-arch-read): Update.
        (<cpu>): New member file-transform.
        (-cpu-parse,-cpu-read): Update.
        * opcodes.scm (<hw-asm>, method gen-extract): Pass ex_info to handler.
        (gen-hash-defines): Define CGEN_INSN_LSB0_P.
        (CGEN_INT_INSN_P): Renamed from CGEN_INT_INSN.
        (gen-insert-switch): Update args of @arch@_cgen_insert_operand.
        (gen-extract-switch): Update args of @arch@_cgen_extract_operand.
        (gen-opcode-open): Set CGEN_OPCODE_INSN_ENDIAN.
        * operand.scm (op:start): Update call to field-start method.
        * sim-decode.scm (opcode-slots): New arg lsb0?.
        (fill-slot!,build-slots): Ditto.
        (build-decode-table-entry,build-decode-table-guts): Ditto.
        (gen-decoder-table,gen-decoder-switch,gen-decoder): Ditto.
        (gen-decode-fn): Ditto.
        (cgen-decode.c): Update call to gen-decode-fn.
        * sim.scm (gen-argbuf-type): Move `semantic' to cpu specific part.
        (-gen-cpu-header,-gen-cpuall-includes): New procs.
        (cgen-cpuall.h): Call -gen-cpuall-includes.
        * types.scm (<bitrange>): New class.
        (types-init!,types-finish!): New procs.
        * utils-cgen.scm (parse-number): New proc.
        (parse-boolean): New proc.
        * utils.scm (word-value): Renamed from shift-bits, rewrite.
        (word-mask): Rewrite.
        * m32r.cpu (define-arch): New fields default-insn-bitsize,insn-lsb0?.
        (m32rxf): New field `file-transform'.
        * m32r.opc (my_print_insn): print_int_insn -> print_insn.

        * hobbit.h: Fix include file name.

Fri Oct  9 16:58:10 1998  Doug Evans  <devans@seba.cygnus.com>

        * slib: New directory of slib files used by cgen/hobbit.
        * hobbit.scm: New file.
        * hobbit.c: New file.
        * hobbit.h: New file.
        * hobscmif.h: New file.
        * hob-main.c: New file.
        * hobslib.scm: New file.
        * hob.sh: New file.
        * Makefile.am: Add support for compiling hobbit, and using compiled
        version of hobbit to compile cgen.
        * Makefile.in: Regenerate.
        * configure.in: Support --with-hobbit.
        * configure: Regenerate.
        * acconfig.h (WITH_HOBBIT): Add.
        * config.in: Regenerate.

        * rtl.scm: New file, was cdl-c.scm.
        Definition of rtx funcs moved to rtx-funcs.scm.
        (semantic-in-out-operands): Rewrite to compute object form of
        semantic code.
        * rtx-funcs.scm: New file.

        * cgen-gh.c: #include "config.h".
        (gh_cadddr,gh_cddddr): New fns.
        (cgh_vector_to_list): New fn.
        (cgh_map1,cgh_map2,cgh_map1_fn2): Rewrite.
        (cgh_init): Prefix qsort procs with "cgh-".
        * cgen-gh.h (gh_cadddr,gh_cddddr,cgh_vector_to_list): Declare.
        * cgen.c: #include "config.h".

        * attr.scm (bitset-attr?): New proc.
        (<bitset-attribute>, method parse-value): Value syntax changed from
        (val1 val2 ...) to val1,val2,....
        (<bitset-attribute>): New method gen-value.
        (<integer-attribute>): New method gen-value.
        (<enum-attribute>): New method gen-value.
        * cpu.scm: Disable debugging evaluator if (not (defined? 'DEBUG-EVAL)).
        (<reader>): New class.
        (CURRENT-ARCH,CURRENT-READER): New globals.
        (keep-mach?): Move here from mach.scm.
        * mach.scm (arch,arch-comment,arch-default-mach): Delete.
        (<arch>): New class.
        (<arch-data>): New class.
        (<cpu>): Make subclass of <ident>.
        (*ENDIAN* variables): Delete.
        (process-state-vars): Delete.
        (mach-finish!): Add `base' value to MACH attribute.
        * hardware.scm (<hardware>): Make subclass of <ident>.
        (hw:std-attrs): New global.
        (hw-profilable?): New proc.
        * ifield.scm (<ifield>): Make subclass of <ident>.
        (sort-ifield-list): Move here from iformat.scm.
        * iformat.scm (<iformat>): Renamed from <insn-format>.
        Make subclass of <ident>.
        (-ifmt-search-key): Include cti? in categorization of formats.
        (ifmt-analyze): Compile semantics (turn to object form).
        * insn.scm (<insn>): Make subclass of <ident>.
        New member compiled-semantics.
        (insn:std-attrs): Add SKIP-CTI, VIRTUAL.
        * mode.scm (<mode>): Make subclass of <ident>.
        (UBI): Delete.
        * model.scm (<unit>): Make subclass of <ident>.
        New members inputs,outputs.
        (<model>): Make subclass of <ident>.  New member state.
        (-unit-parse): Parse inputs,outputs.
        (<iunit>): New class.
        (-insn-timing-parse-model): New proc.
        (parse-insn-timing): Function unit spec rewritten.
        * operand.scm (<operand>): Make subclass of <ident>.
        New members sem-name,num,cond?  New method gen-pretty-name.
        (hw-index-scalar): New global.
        (op-nub-hw): Move here from rtl.scm.
        (op:lookup-sem-name,op-profilable?): New procs.
        * pmacros.scm: Rewrite to pass through hobbit.
        * utils-cgen.scm (gen-attr-defn): Simplify using new gen-value method.
        * utils.scm (logit): Make a macro.
        (bit-set?): Rewrite.
        (high-part): Rewrite.

        * m32r.cpu (define-arch): Move to top of file.
        (cpu family m32rbf): Renamed from m32rb.
        (model m32r/d): Function unit spec rewritten.
        (all insns): Ditto.  Replace UBI with BI.

        * opcodes.scm (gen-attr-table-decls): Declare
        @arch@_cgen_hw_attr_table.
        (gen-attr-table-defns): Generate hw attribute table.

        * sim-cpu.scm (-gen-engine-decls): New proc.
        (-gen-model-decls): New proc.
        (gen-parallel-exec-type): Add new member `written' to struct parexec.
        (-gen-record-args): Add SEM_BRANCH_INIT_EXTRACT if cti insn.
        (-gen-record-profile-args): Simplify.
        (-gen-parallel-sem-case): Delete.
        (gen-semantic-fn): Emit SEM_BRANCH_{INIT,FINI} if cti insn.
        New local `written'.  Delete profiling code.
        (-gen-sem-case): Ditto.
        (-uncond-written-mask,-any-cond-written?): New procs.
        (cgen-sem-switch.c): Include duplicates of insns that can be executed
        parallelly or serially, and write-back handlers for all parallel insns.
        * sim-decode.scm (-gen-decode-insn-globals): Add parallel write-back
        support to initialization of struct insn_sem.
        (-gen-idesc-decls): Add parallel write-back support to struct idesc.
        (-gen-insn-sem-type): Add parallel write-back support to struct
        insn_sem.
        (-gen-idesc-init-fn): Add support for virtual insns.
        Add parallel write-back support.
        * sim-model.scm (gen-model-profile-fn): Delete
        (-gen-model-fn-decls): New proc.
        (-gen-model-insn-fn,-gen-model-insn-fns): New procs.
        (-gen-model-init-fn): New proc.
        (-gen-mach-defns): Initialize insn-name lookup and fast/full engine_fn
        members in @mach@_init_cpu.
        (cgen-model.c): Generate model handlers for each insn.
        * sim.scm (gen-define-field-macro): Cti insns handled differently.
        (<hw-pc>): New method gen-write.
        (<hw-register>, method gen-write): New arg `mode'.
        (<hw-register>): Delete method gen-record-profile!.
        New method gen-profile-index-type.
        (<hw-memory>, method gen-write): New arg `mode'.
        (<hw-address>, method gen-extract): Delete.
        (<hw-address>, method gen-write): New arg `mode'.
        (<hw-index>, method get-write-index): Rewrite.
        (<pc>, method cxmake-get-direct): Delete.
        (<pc>): New method cxmake-get.  Comment out methods
        gen-set-quiet,gen-set-trace.
        (<operand>): New methods gen-argbuf-elm,gen-profile-argbuf-elm,
        gen-profile-index-type,gen-profile-code.
        Delete method gen-pretty-name.  Rewrite method gen-write.
        Delete method cxmake-get-direct.
        (-op-gen-set-trace): Update `written'.
        (-op-gen-set-trace-parallel): Ditto.
        (-gen-hw-index-raw,-gen-hw-index): Handle strings.
        (gen-cpu-insn-enum-decl): Add extra entries for parallel
        insns and their write-back handlers.
        (insn-op-lookup): New proc.
        (<unit>): New method gen-profile-code.
        (<iunit>): New method gen-profile-code.
        (gen-argbuf-elm): Add profiling elements.
        (gen-argbuf-type): Define cti insns separately in their own struct.
        Add member `addr_cache' to this struct.  Add entries for pbb virtual
        insns.  Move semantic entries here from struct scache.
        Delete everything from struct scache except argbuf.
        (<insn>, method gen-profile-locals): Rewrite.
        (<insn>, method gen-profile-code): Rewrite.
        (sim-finish!): Create virtual pbb insns.

Tue Sep 15 15:22:02 1998  Doug Evans  <devans@canuck.cygnus.com>

        * m32r.cpu (h-cr): Add bbpc,bbpsw.
        (h-sm,h-bsm,h-ie,h-bie,h-bcond,h-bpc): Delete.
        (h-psw,h-bpsw,h-bbpsw): Define.
        (rte,trap): Handle bbpc,bbpsw.
        * opcodes.scm (max-operand-instances): Fix typo.
        * sim.scm (<hardware-base>, method 'fun-access?): Don't force virtual
        hardware elements to be fun-access.
        (-hw-gen-fun-get,-hw-gen-fun-set): Fix handling of scalars.

Wed Sep  9 15:28:55 1998  Doug Evans  <devans@canuck.cygnus.com>

        * m32r.cpu (trap): Pass `pc' to m32r_trap.

Mon Aug 10 14:29:33 1998  Doug Evans  <devans@canuck.cygnus.com>

        * opcodes.scm (gen-insn-table-entry): Comment out generation of cdx.

Mon Aug  3 11:51:04 1998  Doug Evans  <devans@seba.cygnus.com>

        * m32r.cpu (cpu m32rb): Renamed from m32r to distinguish from
        architecture name.
        (mach m32r): Update.

        * mach.scm (mach:supports?): New proc.
        * sim-cpu.scm (gen-cpu-reg-access-{decls,defns}): Renamed from
        gen-reg-access-{decls,defns}.
        * sim.scm (gen-reg-access-{decl,defn}): New procs.
        (gen-mach-bfd-name): New proc.
        (gen-arch-reg-access-{decls,defns}): New procs.
        (cgen-arch.[ch]): Output register access cover fns.

        * hardware.scm (hardware-builtin!): Set print handlers for
        h-addr,h-iaddr.
        * m32r.opc (parse_hash,parse_hi16,parse_slo16,parse_ulo16): New arg
        `od'.
        (CGEN_PRINT_NORMAL,print_hash): Ditto.
        (my_print_insn): Ditto.  Delete args buf, buflen.
        * opcodes.scm: Pass `od' (opcode-descriptor) to all C handlers.
        (-hw-asm-specs): Add `handlers' spec.
        (-parse-hw-asm): Lookup class at runtime.  If no asm-spec, use
        `normal-hw-asm'.
        (<hw-asm>): Renamed from <opval>.  New elements parse,insert,extract,
        print.
        (<hw-asm>, gen-insert,gen-extract,gen-print): Use them.
        (<hw-asm>, parse!): New method.
        (gen-insn-table-entry): Print semantics.
        (gen-opcode-open): Renamed from gen-opcode-table.

        * utils.scm (string-write): No longer a macro.
        (-string-write): Handle procedure args.
        * opcodes.scm: Update all calls to string-write.
        * sim-cpu.scm: Ditto.
        * sim-decode.scm: Ditto.
        * sim-model.scm: Ditto.
        * sim.scm: Ditto.

Fri Jul 31 14:40:38 1998  Doug Evans  <devans@seba.cygnus.com>

        * opcodes.scm (cgen-ibd.h,gen-extra-ibd.h): New procs.
        (-gen-insn-builders,-gen-insn-builder): New procs.

Fri Jul 24 11:38:59 1998  Doug Evans  <devans@canuck.cygnus.com>

        * opcodes.scm (gen-syntax-entry): Fix bracketing for -Wall.
        (gen-opcode-table): Properly terminate comment.

Tue Jul 21 10:51:42 1998  Doug Evans  <devans@seba.cygnus.com>

        * Version 0.6.0.
        Clean up pass over everything, so starting fresh.