xref: /openbsd/gnu/gcc/gcc/config/i386/unix.h (revision 5af055cd)
1 /* Definitions for Unix assembler syntax for the Intel 80386.
2    Copyright (C) 1988, 1994, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
3 
4 This file is part of GCC.
5 
6 GCC 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 GCC 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 GCC; see the file COPYING.  If not, write to
18 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
19 Boston, MA 02110-1301, USA.  */
20 
21 /* This file defines the aspects of assembler syntax
22    that are the same for all the i386 Unix systems
23    (though they may differ in non-Unix systems).  */
24 
25 /* Define macro used to output shift-double opcodes when the shift
26    count is in %cl.  Some assemblers require %cl as an argument;
27    some don't.  This macro controls what to do: by default, don't
28    print %cl.  */
29 #define SHIFT_DOUBLE_OMITS_COUNT 1
30 
31 /* Define the syntax of pseudo-ops, labels and comments.  */
32 
33 /* String containing the assembler's comment-starter.  */
34 
35 #define ASM_COMMENT_START "/"
36 
37 /* Output to assembler file text saying following lines
38    may contain character constants, extra white space, comments, etc.  */
39 
40 #define ASM_APP_ON "/APP\n"
41 
42 /* Output to assembler file text saying following lines
43    no longer contain unusual constructs.  */
44 
45 #define ASM_APP_OFF "/NO_APP\n"
46 
47 /* Output before read-only data.  */
48 
49 #define TEXT_SECTION_ASM_OP "\t.text"
50 
51 /* Output before writable (initialized) data.  */
52 
53 #define DATA_SECTION_ASM_OP "\t.data"
54 
55 /* Output before writable (uninitialized) data.  */
56 
57 #define BSS_SECTION_ASM_OP "\t.bss"
58 
59 /* Globalizing directive for a label.  */
60 #define GLOBAL_ASM_OP ".globl "
61 
62 /* By default, target has a 80387, uses IEEE compatible arithmetic,
63    and returns float values in the 387.  */
64 
65 #define TARGET_SUBTARGET_DEFAULT (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS)
66