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