1 /* Definitions of target machine for GNU compiler.
2 Commodore Amiga A3000UX version.
4 Copyright (C) 1991, 1993 Free Software Foundation, Inc.
6 This file is part of GNU CC.
8 GNU CC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 1, or (at your option)
13 GNU CC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU CC; see the file COPYING. If not, write to
20 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
22 #include "m68k/m68kv4.h"
24 /* rhealey@aggregate.com says dots are no good either. */
25 #define NO_DOT_IN_LABEL
27 /* Alter assembler syntax for fsgldiv and fsglmul.
28 It is highly likely that this is a generic SGS m68k assembler dependency.
29 If so, it should eventually be handled in the m68k/sgs.h ASM_OUTPUT_OPCODE
30 macro, like the other SGS assembler quirks. -fnf */
32 #define FSGLDIV_USE_S /* Use fsgldiv.s, not fsgldiv.x */
33 #define FSGLMUL_USE_S /* Use fsglmul.s, not fsglmul.x */
35 /* Names to predefine in the preprocessor for this target machine. For the
36 Amiga, these definitions match those of the native AT&T compiler. Note
37 that we override the definition in m68kv4.h, where SVR4 is defined and
41 #define CPP_PREDEFINES \
42 "-Dm68k -Dunix -DAMIX -D__svr4__ -D__motorola__ \
43 -Amachine(m68k) -Acpu(m68k) -Asystem(unix) -Alint(off)"
45 /* At end of a switch table, define LDnnn iff the symbol LInnn was defined.
46 Some SGS assemblers have a bug such that "Lnnn-LInnn-2.b(pc,d0.l*2)"
47 fails to assemble. Luckily "Lnnn(pc,d0.l*2)" produces the results
48 we want. This difference can be accommodated by making the assembler
49 define such "LDnnn" to be either "Lnnn-LInnn-2.b", "Lnnn", or any other
50 string, as necessary. This is accomplished via the ASM_OUTPUT_CASE_END
51 macro. (the Amiga assembler has this bug) */
53 #undef ASM_OUTPUT_CASE_END
54 #define ASM_OUTPUT_CASE_END(FILE,NUM,TABLE) \
56 if (switch_table_difference_label_flag) \
57 asm_fprintf ((FILE), "\t%s %LLD%d,%LL%d\n", SET_ASM_OP, (NUM), (NUM));\
58 switch_table_difference_label_flag = 0; \
61 int switch_table_difference_label_flag;
63 /* This says how to output assembler code to declare an
64 uninitialized external linkage data object. Under SVR4,
65 the linker seems to want the alignment of data objects
66 to depend on their types. We do exactly that here.
67 [This macro overrides the one in svr4.h because the amix assembler
68 has a minimum default alignment of 4, and will not accept any
69 explicit alignment smaller than this. -fnf] */
71 #undef ASM_OUTPUT_ALIGNED_COMMON
72 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
74 fputs ("\t.comm\t", (FILE)); \
75 assemble_name ((FILE), (NAME)); \
76 fprintf ((FILE), ",%u,%u\n", (SIZE), MAX ((ALIGN) / BITS_PER_UNIT, 4)); \
79 /* This says how to output assembler code to declare an
80 uninitialized internal linkage data object. Under SVR4,
81 the linker seems to want the alignment of data objects
82 to depend on their types. We do exactly that here.
83 [This macro overrides the one in svr4.h because the amix assembler
84 has a minimum default alignment of 4, and will not accept any
85 explicit alignment smaller than this. -fnf] */
87 #undef ASM_OUTPUT_ALIGNED_LOCAL
88 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
90 fprintf ((FILE), "\t%s\t%s,%u,%u\n", \
91 BSS_ASM_OP, (NAME), (SIZE), MAX ((ALIGN) / BITS_PER_UNIT, 4)); \
94 /* This definition of ASM_OUTPUT_ASCII is the same as the one in m68k/sgs.h,
95 which has been overridden by the one in svr4.h. However, we can't use
96 the one in svr4.h because the amix assembler croaks on some of the
97 strings that it emits (such as .string "\"%s\"\n"). */
99 #undef ASM_OUTPUT_ASCII
100 #define ASM_OUTPUT_ASCII(FILE,PTR,LEN) \
102 register int sp = 0, lp = 0, ch; \
103 fprintf ((FILE), "\t%s ", BYTE_ASM_OP); \
106 if (ch > ' ' && ! (ch & 0x80) && ch != '\\') \
108 fprintf ((FILE), "'%c", ch); \
112 fprintf ((FILE), "0x%x", ch); \
116 if ((sp % 10) == 0) \
118 fprintf ((FILE), "\n\t%s ", BYTE_ASM_OP); \
122 putc (',', (FILE)); \
125 } while (sp < (LEN)); \
126 putc ('\n', (FILE)); \
129 /* The following should be unnecessary as a result of PIC_CASE_VECTOR_ADDRESS.
130 But rhealey@aggregate.com says they are still needed. */
132 /* Override these for the sake of an assembler bug: the Amix
133 assembler can't handle .LC0@GOT syntax. This pollutes the final
134 table for shared librarys but what's a poor soul to do; sigh... RFH */
136 #undef ASM_GENERATE_INTERNAL_LABEL
137 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
138 if (flag_pic && !strcmp(PREFIX,"LC")) \
139 sprintf (LABEL, "*%s%%%d", PREFIX, NUM); \
141 sprintf (LABEL, "*%s%s%d", LOCAL_LABEL_PREFIX, PREFIX, NUM)
143 #undef ASM_OUTPUT_INTERNAL_LABEL
144 #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
145 if (flag_pic && !strcmp(PREFIX,"LC")) \
146 asm_fprintf (FILE, "%s%%%d:\n", PREFIX, NUM); \
148 asm_fprintf (FILE, "%0L%s%d:\n", PREFIX, NUM)