/* Definitions of target machine for GNU compiler.
Motorola 68HC11 and 68HC12.
- Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
+ Free Software Foundation, Inc.
Contributed by Stephane Carrez (stcarrez@nerim.fr)
This file is part of GCC.
while (0)
/* As an embedded target, we have no libc. */
-#define inhibit_libc
+#ifndef inhibit_libc
+# define inhibit_libc
+#endif
/* Forward type declaration for prototypes definitions.
rtx_ptr is equivalent to rtx. Can't use the same name. */
&& VALUE == CONST0_RTX (GET_MODE (VALUE))) : 0)
/* 'U' represents certain kind of memory indexed operand for 68HC12.
- and any memory operand for 68HC11. */
+ and any memory operand for 68HC11.
+ 'R' represents indexed addressing mode or access to page0 for 68HC11.
+ For 68HC12, it represents any memory operand. */
#define EXTRA_CONSTRAINT(OP, C) \
((C) == 'U' ? m68hc11_small_indexed_indirect_p (OP, GET_MODE (OP)) \
: (C) == 'Q' ? m68hc11_symbolic_p (OP, GET_MODE (OP)) \
\f
/* Passing Function Arguments on the Stack. */
-/* When a prototype says `char' or `short', really pass an `int'. */
-/* #define PROMOTE_PROTOTYPES */
-
/* If we generate an insn to push BYTES bytes, this says how many the
stack pointer really advances by. No rounding or alignment needed
for MC6811. */
The standard MC6811 call, with arg count word, includes popping the
args as part of the call template. */
#define RETURN_POPS_ARGS(FUNDECL,FUNTYPE,SIZE) 0
-
-/* Nonzero if type TYPE should be returned in memory.
- Blocks and data types largers than 4 bytes cannot be returned
- in the register (D + X = 4). */
-#define RETURN_IN_MEMORY(TYPE) \
- ((TYPE_MODE (TYPE) == BLKmode) \
- ? (int_size_in_bytes (TYPE) > 4) \
- : (GET_MODE_SIZE (TYPE_MODE (TYPE)) > 4))
-
\f
/* Passing Arguments in Registers. */
int nregs;
} CUMULATIVE_ARGS;
-/* A C expression that indicates when an argument must be passed by reference.
- If nonzero for an argument, a copy of that argument is made in memory and a
- pointer to the argument is passed instead of the argument itself.
- The pointer is passed in whatever way is appropriate for passing a pointer
- to that type.
-
- 64-bit numbers are passed by reference. */
-#define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED) \
- m68hc11_function_arg_pass_by_reference (& (CUM), (MODE), (TYPE), (NAMED))
-
-
/* If defined, a C expression which determines whether, and in which direction,
to pad out an argument with extra space. The value should be of type
`enum direction': either `upward' to pad above the argument,
#define PAD_VARARGS_DOWN \
(m68hc11_function_arg_padding (TYPE_MODE (type), type) == downward)
-/* A C expression that indicates when it is the called function's
- responsibility to make a copy of arguments passed by invisible
- reference. Normally, the caller makes a copy and passes the
- address of the copy to the routine being called. When
- FUNCTION_ARG_CALLEE_COPIES is defined and is nonzero, the caller
- does not make a copy. Instead, it passes a pointer to the "live"
- value. The called function must not modify this value. If it can
- be determined that the value won't be modified, it need not make a
- copy; otherwise a copy must be made. */
-#define FUNCTION_ARG_CALLEE_COPIES(CUM, MODE, TYPE, NAMED) \
- ((NAMED) && FUNCTION_ARG_PASS_BY_REFERENCE (CUM, MODE, TYPE, NAMED))
-
/* Initialize a variable CUM of type CUMULATIVE_ARGS for a call to a
function whose data type is FNTYPE. For a library call, FNTYPE is 0. */
-#define INIT_CUMULATIVE_ARGS(CUM,FNTYPE,LIBNAME,INDIRECT) \
+#define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \
(m68hc11_init_cumulative_args (&CUM, FNTYPE, LIBNAME))
/* Update the data in CUM to advance over an argument of mode MODE and data
caller saving results in spill failure. */
#define CALLER_SAVE_PROFITABLE(REFS,CALLS) 0
-/* For an arg passed partly in registers and partly in memory,
- this is the number of registers used.
- For args passed entirely in registers or entirely in memory, zero.
-
- Passing an arg partly in register and memory does not work at all.
- Don't do that. */
-#define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) (0)
-
/* 1 if N is a possible register number for function argument passing.
D is for 16-bit values, X is for 32-bit (X+D). */
#define FUNCTION_ARG_REGNO_P(N) \
The high part is passed in X and the low part in D.
For GCC, the register number must be HARD_X_REGNUM. */
#define FUNCTION_VALUE(VALTYPE, FUNC) \
- gen_rtx (REG, TYPE_MODE (VALTYPE), \
+ gen_rtx_REG (TYPE_MODE (VALTYPE), \
((TYPE_MODE (VALTYPE) == BLKmode \
|| GET_MODE_SIZE (TYPE_MODE (VALTYPE)) <= 2) \
? HARD_D_REGNUM : HARD_X_REGNUM))
#define LIBCALL_VALUE(MODE) \
- gen_rtx (REG, MODE, \
+ gen_rtx_REG (MODE, \
(((MODE) == BLKmode || GET_MODE_SIZE (MODE) <= 2) \
? HARD_D_REGNUM : HARD_X_REGNUM))
#define FUNCTION_VALUE_REGNO_P(N) \
((N) == HARD_D_REGNUM || (N) == HARD_X_REGNUM)
-/* Register in which address to store a structure value is passed to a
- function. */
-#define STRUCT_VALUE_REGNUM HARD_D_REGNUM
-
/* EXIT_IGNORE_STACK should be nonzero if, when returning from a function,
the stack pointer does not matter. The value is tested only in functions
that have frame pointers. No definition is equivalent to always zero. */
sections when it shrinks the code. This results in invalid addresses
when debugging. This does not bless too much the HC11/HC12 as most
applications are embedded and small, hence a reasonable debug info.
- This problem is known for binutils 2.13, 2.14 and mainline. */
+ This problem is known for binutils 2.13, 2.14 and mainline. */
#undef HAVE_AS_DWARF2_DEBUG_LINE
/* The prefix for local labels. You should be able to define this as
\f
/* Miscellaneous Parameters. */
-/* Define the codes that are matched by predicates in m68hc11.c. */
-#define PREDICATE_CODES \
-{"stack_register_operand", {SUBREG, REG}}, \
-{"d_register_operand", {SUBREG, REG}}, \
-{"hard_addr_reg_operand", {SUBREG, REG}}, \
-{"hard_reg_operand", {SUBREG, REG}}, \
-{"m68hc11_logical_operator", {AND, IOR, XOR}}, \
-{"m68hc11_arith_operator", {AND, IOR, XOR, PLUS, MINUS, \
- ASHIFT, ASHIFTRT, LSHIFTRT, \
- ROTATE, ROTATERT }}, \
-{"m68hc11_non_shift_operator", {AND, IOR, XOR, PLUS, MINUS}}, \
-{"m68hc11_unary_operator", {NEG, NOT, SIGN_EXTEND, ZERO_EXTEND}}, \
-{"m68hc11_shift_operator", {ASHIFT, ASHIFTRT, LSHIFTRT, ROTATE, ROTATERT}},\
-{"m68hc11_eq_compare_operator", {EQ, NE}}, \
-{"non_push_operand", {SUBREG, REG, MEM}}, \
-{"reg_or_some_mem_operand", {SUBREG, REG, MEM}}, \
-{"tst_operand", {SUBREG, REG, MEM}}, \
-{"cmp_operand", {SUBREG, REG, MEM, SYMBOL_REF, LABEL_REF, \
- CONST_INT, CONST_DOUBLE}},
-
/* Specify the machine mode that this machine uses
for the index in the tablejump instruction. */
#define CASE_VECTOR_MODE Pmode
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