gcc/config/i386/att.h

   1 /* Definitions for AT&T assembler syntax for the Intel 80386.
   2    Copyright (C) 1988, 1996 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, 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 /* Include common aspects of all 386 Unix assemblers.  */
  22 #include "i386/unix.h"
  23
  24 #define TARGET_VERSION fprintf (stderr, " (80386, ATT syntax)");
  25 \f
  26 /* Define the syntax of instructions and addresses.  */
  27
  28 /* Prefix for internally generated assembler labels.  */
  29 #define LPREFIX ".L"
  30
  31 /* Assembler pseudos to introduce constants of various size.  */
  32
  33 /* #define ASM_BYTE_OP "\t.byte"  Now in svr3.h or svr4.h.  */
  34 #define ASM_SHORT "\t.value"
  35 #define ASM_LONG "\t.long"
  36 #define ASM_DOUBLE "\t.double"
  37
  38 /* How to output an ASCII string constant.  */
  39
  40 #define ASM_OUTPUT_ASCII(FILE, p, size) \
  41 do                                                              \
  42 { int i = 0;                                                    \
  43   while (i < (size))                                            \
  44     { if (i%10 == 0) { if (i!=0) fprintf ((FILE), "\n");        \
  45                        fprintf ((FILE), "%s ", ASM_BYTE_OP); }  \
  46       else fprintf ((FILE), ",");                               \
  47         fprintf ((FILE), "0x%x", ((p)[i++] & 0377)) ;}          \
  48       fprintf ((FILE), "\n");                                   \
  49 } while (0)
  50
  51 /* Do use .optim by default on this machine.  */
  52 #undef ASM_FILE_START_1
  53 #define ASM_FILE_START_1(FILE) fprintf (FILE, "\t.optim\n")
  54
  55 /* This is how to output an assembler line
  56    that says to advance the location counter
  57    to a multiple of 2**LOG bytes.  */
  58
  59 #define ASM_OUTPUT_ALIGN(FILE,LOG)      \
  60     if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", 1<<(LOG))
  61
  62 /* This is how to output an assembler line
  63    that says to advance the location counter by SIZE bytes.  */
  64
  65 #define ASM_OUTPUT_SKIP(FILE,SIZE)  \
  66   fprintf ((FILE), "\t.set .,.+%u\n", (SIZE))
  67
  68 /* Can't use ASM_OUTPUT_SKIP in text section; it doesn't leave 0s.  */
  69
  70 #define ASM_NO_SKIP_IN_TEXT 1
  71 \f
  72 /* Define the syntax of labels and symbol definitions/declarations.  */
  73
  74 /* This is how to store into the string BUF
  75    the symbol_ref name of an internal numbered label where
  76    PREFIX is the class of label and NUM is the number within the class.
  77    This is suitable for output with `assemble_name'.  */
  78
  79 #undef ASM_GENERATE_INTERNAL_LABEL
  80 #define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER)  \
  81   sprintf ((BUF), ".%s%d", (PREFIX), (NUMBER))
  82
  83 /* This is how to output an internal numbered label where
  84    PREFIX is the class of label and NUM is the number within the class.  */
  85
  86 #undef ASM_OUTPUT_INTERNAL_LABEL
  87 #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)      \
  88   fprintf (FILE, ".%s%d:\n", PREFIX, NUM)
  89
  90 /* The prefix to add to user-visible assembler symbols. */
  91
  92 #undef USER_LABEL_PREFIX
  93 #define USER_LABEL_PREFIX ""