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1.1 root 1: /* Definitions of target machine for GNU compiler.
2: Commodore Amiga A3000UX version.
3:
4: Copyright (C) 1991 Free Software Foundation, Inc.
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
20: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
21:
22: #include "m68kv4.h"
23:
1.1.1.2 ! root 24: /* Alter assembler syntax for fsgldiv. */
! 25:
! 26: #define FSGLDIV_USE_S
! 27:
1.1 root 28: /* Names to predefine in the preprocessor for this target machine. For the
29: Amiga, these definitions match those of the native AT&T compiler. Note
30: that we override the definition in m68kv4.h, where SVR4 is defined and
31: AMIX isn't. */
32:
33: #undef CPP_PREDEFINES
34: #define CPP_PREDEFINES \
35: "-Dm68k -Dunix -DAMIX -Amachine(m68k) -Acpu(m68k) -Asystem(unix) -Alint(off)"
36:
37: /* This is the library routine that is used to transfer control from
38: the trampoline to the actual nested function. FIXME: This needs to
39: be implemented still. -fnf */
40:
41: #undef TRANSFER_FROM_TRAMPOLINE
42:
43: /* At end of a switch table, define LDnnn iff the symbol LInnn was defined.
44: Some SGS assemblers have a bug such that "Lnnn-LInnn-2.b(pc,d0.l*2)"
45: fails to assemble. Luckily "Lnnn(pc,d0.l*2)" produces the results
1.1.1.2 ! root 46: we want. This difference can be accommodated by making the assembler
1.1 root 47: define such "LDnnn" to be either "Lnnn-LInnn-2.b", "Lnnn", or any other
48: string, as necessary. This is accomplished via the ASM_OUTPUT_CASE_END
49: macro. (the Amiga assembler has this bug) */
50:
51: #undef ASM_OUTPUT_CASE_END
52: #define ASM_OUTPUT_CASE_END(FILE,NUM,TABLE) \
53: do { \
1.1.1.2 ! root 54: if (switch_table_difference_label_flag) \
1.1 root 55: asm_fprintf ((FILE), "%s %LLD%d,%LL%d\n", SET_ASM_OP, (NUM), (NUM));\
1.1.1.2 ! root 56: switch_table_difference_label_flag = 0; \
1.1 root 57: } while (0)
58:
1.1.1.2 ! root 59: int switch_table_difference_label_flag;
! 60:
1.1 root 61: /* This says how to output assembler code to declare an
62: uninitialized external linkage data object. Under SVR4,
63: the linker seems to want the alignment of data objects
64: to depend on their types. We do exactly that here.
65: [This macro overrides the one in svr4.h because the amix assembler
66: has a minimum default alignment of 4, and will not accept any
67: explicit alignment smaller than this. -fnf] */
68:
69: #undef ASM_OUTPUT_ALIGNED_COMMON
70: #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
71: do { \
72: fputs ("\t.comm\t", (FILE)); \
73: assemble_name ((FILE), (NAME)); \
74: fprintf ((FILE), ",%u,%u\n", (SIZE), MAX ((ALIGN) / BITS_PER_UNIT, 4)); \
75: } while (0)
76:
77: /* This says how to output assembler code to declare an
78: uninitialized internal linkage data object. Under SVR4,
79: the linker seems to want the alignment of data objects
80: to depend on their types. We do exactly that here.
81: [This macro overrides the one in svr4.h because the amix assembler
82: has a minimum default alignment of 4, and will not accept any
83: explicit alignment smaller than this. -fnf] */
84:
85: #undef ASM_OUTPUT_ALIGNED_LOCAL
86: #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
87: do { \
88: fprintf ((FILE), "%s\t%s,%u,%u\n", \
89: BSS_ASM_OP, (NAME), (SIZE), MAX ((ALIGN) / BITS_PER_UNIT, 4)); \
90: } while (0)
91:
92: /* This definition of ASM_OUTPUT_ASCII is the same as the one in m68ksgs.h,
93: which has been overridden by the one in svr4.h. However, we can't use
94: the one in svr4.h because the amix assembler croaks on some of the
95: strings that it emits (such as .string "\"%s\"\n"). */
96:
97: #undef ASM_OUTPUT_ASCII
98: #define ASM_OUTPUT_ASCII(FILE,PTR,LEN) \
99: { \
100: register int sp = 0, lp = 0, ch; \
1.1.1.2 ! root 101: fprintf ((FILE), "\t%s ", BYTE_ASM_OP); \
1.1 root 102: do { \
103: ch = (PTR)[sp]; \
104: if (ch > ' ' && ! (ch & 0x80) && ch != '\\') \
105: { \
106: fprintf ((FILE), "'%c", ch); \
107: } \
108: else \
109: { \
110: fprintf ((FILE), "0x%x", ch); \
111: } \
112: if (++sp < (LEN)) \
113: { \
114: if ((sp % 10) == 0) \
115: { \
1.1.1.2 ! root 116: fprintf ((FILE), "\n\t%s ", BYTE_ASM_OP); \
1.1 root 117: } \
118: else \
119: { \
120: putc (',', (FILE)); \
121: } \
122: } \
123: } while (sp < (LEN)); \
124: putc ('\n', (FILE)); \
125: }
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