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1.1 root 1: /* Definitions for AT&T assembler syntax for the Intel 80386.
2: Copyright (C) 1988 Free Software Foundation, Inc.
3:
4: This file is part of GNU CC.
5:
6: GNU CC is free software; you can redistribute it and/or modify
7: it under the terms of the GNU General Public License as published by
8: the Free Software Foundation; either version 2, or (at your option)
9: any later version.
10:
11: GNU CC is distributed in the hope that it will be useful,
12: but WITHOUT ANY WARRANTY; without even the implied warranty of
13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14: GNU General Public License for more details.
15:
16: You should have received a copy of the GNU General Public License
17: along with GNU CC; see the file COPYING. If not, write to
18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
19:
20: /* Include common aspects of all 386 Unix assemblers. */
21: #include "unx386.h"
22:
23: #define TARGET_VERSION fprintf (stderr, " (80386, ATT syntax)");
24:
25: /* Define the syntax of instructions and addresses. */
26:
27: /* Prefix for internally generated assembler labels. */
28: #define LPREFIX ".L"
29:
30: /* Assembler pseudos to introduce constants of various size. */
31:
32: /* #define ASM_BYTE_OP "\t.byte" Now in svr3.h or svr4.h. */
33: #define ASM_SHORT "\t.value"
34: #define ASM_LONG "\t.long"
35: #define ASM_DOUBLE "\t.double"
36:
37: /* How to output an ASCII string constant. */
38:
39: #define ASM_OUTPUT_ASCII(FILE, p, size) \
40: { int i = 0; \
41: while (i < (size)) \
42: { if (i%10 == 0) { if (i!=0) fprintf ((FILE), "\n"); \
43: fprintf ((FILE), "%s ", ASM_BYTE_OP); } \
44: else fprintf ((FILE), ","); \
45: fprintf ((FILE), "0x%x", ((p)[i++] & 0377)) ;} \
46: fprintf ((FILE), "\n"); }
47:
48: /* Do use .optim by default on this machine. */
49: #undef ASM_FILE_START_1
50: #define ASM_FILE_START_1(FILE) fprintf (FILE, "\t.optim\n")
51:
52: /* This is how to output an assembler line
53: that says to advance the location counter
54: to a multiple of 2**LOG bytes. */
55:
56: #define ASM_OUTPUT_ALIGN(FILE,LOG) \
57: if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG))
58:
59: /* This is how to output an assembler line
60: that says to advance the location counter by SIZE bytes. */
61:
62: #define ASM_OUTPUT_SKIP(FILE,SIZE) \
63: fprintf ((FILE), "\t.set .,.+%u\n", (SIZE))
64:
65: /* Can't use ASM_OUTPUT_SKIP in text section; it doesn't leave 0s. */
66:
67: #define ASM_NO_SKIP_IN_TEXT 1
68:
69: #define BSS_SECTION_FUNCTION \
70: void \
71: bss_section () \
72: { \
73: if (in_section != in_bss) \
74: { \
75: fprintf (asm_out_file, "%s\n", BSS_SECTION_ASM_OP); \
76: in_section = in_bss; \
77: } \
78: }
79:
80: /* Define the syntax of labels and symbol definitions/declarations. */
81:
82: /* This is how to store into the string BUF
83: the symbol_ref name of an internal numbered label where
84: PREFIX is the class of label and NUM is the number within the class.
85: This is suitable for output with `assemble_name'. */
86:
87: #define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER) \
88: sprintf ((BUF), ".%s%d", (PREFIX), (NUMBER))
89:
90: /* This is how to output an internal numbered label where
91: PREFIX is the class of label and NUM is the number within the class. */
92:
93: #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
94: fprintf (FILE, ".%s%d:\n", PREFIX, NUM)
95:
96: /* This is how to output a reference to a user-level label named NAME. */
97:
98: #undef ASM_OUTPUT_LABELREF
99: #define ASM_OUTPUT_LABELREF(FILE,NAME) \
100: fprintf (FILE, "%s", NAME)
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