gcc/config/i386/unix.h

   1 /* Definitions for Unix assembler syntax for the Intel 80386.
   2    Copyright (C) 1988, 1994, 1999, 2000, 2001, 2002, 2007
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  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 \f
  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 #undef TARGET_SUBTARGET_DEFAULT
  65 #define TARGET_SUBTARGET_DEFAULT \
  66         (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS)
  67
  68 /* By default, 64-bit mode uses 128-bit long double.  */
  69 #undef TARGET_SUBTARGET64_DEFAULT
  70 #define TARGET_SUBTARGET64_DEFAULT \
  71         MASK_128BIT_LONG_DOUBLE