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1.1 root 1: /* Definitions of target machine for GNU compiler.
2: Commodore Amiga A3000UX version.
3:
1.1.1.3 root 4: Copyright (C) 1991, 1993 Free Software Foundation, Inc.
1.1 root 5:
6: This file is part of GNU CC.
7:
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)
11: any later version.
12:
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.
17:
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
1.1.1.4 ! root 20: the Free Software Foundation, 59 Temple Place - Suite 330,
! 21: Boston, MA 02111-1307, USA. */
1.1 root 22:
23: #include "m68k/m68kv4.h"
24:
1.1.1.2 root 25: /* [email protected] says dots are no good either. */
26: #define NO_DOT_IN_LABEL
27:
1.1 root 28: /* Alter assembler syntax for fsgldiv and fsglmul.
29: It is highly likely that this is a generic SGS m68k assembler dependency.
30: If so, it should eventually be handled in the m68k/sgs.h ASM_OUTPUT_OPCODE
31: macro, like the other SGS assembler quirks. -fnf */
32:
33: #define FSGLDIV_USE_S /* Use fsgldiv.s, not fsgldiv.x */
34: #define FSGLMUL_USE_S /* Use fsglmul.s, not fsglmul.x */
35:
36: /* Names to predefine in the preprocessor for this target machine. For the
37: Amiga, these definitions match those of the native AT&T compiler. Note
38: that we override the definition in m68kv4.h, where SVR4 is defined and
39: AMIX isn't. */
40:
41: #undef CPP_PREDEFINES
42: #define CPP_PREDEFINES \
1.1.1.2 root 43: "-Dm68k -Dunix -DAMIX -D__svr4__ -D__motorola__ \
44: -Amachine(m68k) -Acpu(m68k) -Asystem(unix) -Alint(off)"
1.1 root 45:
46: /* At end of a switch table, define LDnnn iff the symbol LInnn was defined.
47: Some SGS assemblers have a bug such that "Lnnn-LInnn-2.b(pc,d0.l*2)"
48: fails to assemble. Luckily "Lnnn(pc,d0.l*2)" produces the results
49: we want. This difference can be accommodated by making the assembler
50: define such "LDnnn" to be either "Lnnn-LInnn-2.b", "Lnnn", or any other
51: string, as necessary. This is accomplished via the ASM_OUTPUT_CASE_END
52: macro. (the Amiga assembler has this bug) */
53:
54: #undef ASM_OUTPUT_CASE_END
55: #define ASM_OUTPUT_CASE_END(FILE,NUM,TABLE) \
56: do { \
57: if (switch_table_difference_label_flag) \
58: asm_fprintf ((FILE), "\t%s %LLD%d,%LL%d\n", SET_ASM_OP, (NUM), (NUM));\
59: switch_table_difference_label_flag = 0; \
60: } while (0)
61:
62: int switch_table_difference_label_flag;
63:
64: /* This says how to output assembler code to declare an
65: uninitialized external linkage data object. Under SVR4,
66: the linker seems to want the alignment of data objects
67: to depend on their types. We do exactly that here.
68: [This macro overrides the one in svr4.h because the amix assembler
69: has a minimum default alignment of 4, and will not accept any
70: explicit alignment smaller than this. -fnf] */
71:
72: #undef ASM_OUTPUT_ALIGNED_COMMON
73: #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
74: do { \
75: fputs ("\t.comm\t", (FILE)); \
76: assemble_name ((FILE), (NAME)); \
77: fprintf ((FILE), ",%u,%u\n", (SIZE), MAX ((ALIGN) / BITS_PER_UNIT, 4)); \
78: } while (0)
79:
80: /* This says how to output assembler code to declare an
81: uninitialized internal linkage data object. Under SVR4,
82: the linker seems to want the alignment of data objects
83: to depend on their types. We do exactly that here.
84: [This macro overrides the one in svr4.h because the amix assembler
85: has a minimum default alignment of 4, and will not accept any
86: explicit alignment smaller than this. -fnf] */
87:
88: #undef ASM_OUTPUT_ALIGNED_LOCAL
89: #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
90: do { \
91: fprintf ((FILE), "\t%s\t%s,%u,%u\n", \
92: BSS_ASM_OP, (NAME), (SIZE), MAX ((ALIGN) / BITS_PER_UNIT, 4)); \
93: } while (0)
94:
95: /* This definition of ASM_OUTPUT_ASCII is the same as the one in m68k/sgs.h,
96: which has been overridden by the one in svr4.h. However, we can't use
97: the one in svr4.h because the amix assembler croaks on some of the
98: strings that it emits (such as .string "\"%s\"\n"). */
99:
100: #undef ASM_OUTPUT_ASCII
101: #define ASM_OUTPUT_ASCII(FILE,PTR,LEN) \
1.1.1.3 root 102: do { \
1.1 root 103: register int sp = 0, lp = 0, ch; \
1.1.1.3 root 104: fprintf ((FILE), "\t%s ", BYTE_ASM_OP); \
1.1 root 105: do { \
106: ch = (PTR)[sp]; \
107: if (ch > ' ' && ! (ch & 0x80) && ch != '\\') \
108: { \
109: fprintf ((FILE), "'%c", ch); \
110: } \
111: else \
112: { \
113: fprintf ((FILE), "0x%x", ch); \
114: } \
115: if (++sp < (LEN)) \
116: { \
117: if ((sp % 10) == 0) \
118: { \
119: fprintf ((FILE), "\n\t%s ", BYTE_ASM_OP); \
120: } \
121: else \
122: { \
123: putc (',', (FILE)); \
124: } \
125: } \
126: } while (sp < (LEN)); \
127: putc ('\n', (FILE)); \
1.1.1.3 root 128: } while (0)
1.1 root 129:
1.1.1.2 root 130: /* The following should be unnecessary as a result of PIC_CASE_VECTOR_ADDRESS.
131: But [email protected] says they are still needed. */
132:
1.1 root 133: /* Override these for the sake of an assembler bug: the Amix
134: assembler can't handle .LC0@GOT syntax. This pollutes the final
135: table for shared librarys but what's a poor soul to do; sigh... RFH */
136:
137: #undef ASM_GENERATE_INTERNAL_LABEL
138: #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
139: if (flag_pic && !strcmp(PREFIX,"LC")) \
140: sprintf (LABEL, "*%s%%%d", PREFIX, NUM); \
141: else \
142: sprintf (LABEL, "*%s%s%d", LOCAL_LABEL_PREFIX, PREFIX, NUM)
143:
144: #undef ASM_OUTPUT_INTERNAL_LABEL
145: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
146: if (flag_pic && !strcmp(PREFIX,"LC")) \
147: asm_fprintf (FILE, "%s%%%d:\n", PREFIX, NUM); \
148: else \
149: asm_fprintf (FILE, "%0L%s%d:\n", PREFIX, NUM)
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