1  /* Definitions for Unix assembler syntax for the Intel 80386.
       2     Copyright (C) 1988-2023 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 3, 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  Under Section 7 of GPL version 3, you are granted additional
      17  permissions described in the GCC Runtime Library Exception, version
      18  3.1, as published by the Free Software Foundation.
      19  
      20  You should have received a copy of the GNU General Public License and
      21  a copy of the GCC Runtime Library Exception along with this program;
      22  see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
      23  <http://www.gnu.org/licenses/>.  */
      24  
      25  /* This file defines the aspects of assembler syntax
      26     that are the same for all the i386 Unix systems
      27     (though they may differ in non-Unix systems).  */
      28  
      29  /* Define macro used to output shift-double opcodes when the shift
      30     count is in %cl.  Some assemblers require %cl as an argument;
      31     some don't.  This macro controls what to do: by default, don't
      32     print %cl.  */
      33  #define SHIFT_DOUBLE_OMITS_COUNT 1
      34  
      35  /* Define the syntax of pseudo-ops, labels and comments.  */
      36  
      37  /* String containing the assembler's comment-starter.
      38     Note the trailing space is necessary in case the character
      39     that immediately follows the comment is '*'.  If this happens
      40     and the space is not there the assembler will interpret this
      41     as the start of a C-like slash-star comment and complain when
      42     there is no terminator.  */
      43  
      44  #define ASM_COMMENT_START "/ "
      45  
      46  /* Output to assembler file text saying following lines
      47     may contain character constants, extra white space, comments, etc.  */
      48  
      49  #define ASM_APP_ON "/APP\n"
      50  
      51  /* Output to assembler file text saying following lines
      52     no longer contain unusual constructs.  */
      53  
      54  #define ASM_APP_OFF "/NO_APP\n"
      55  
      56  /* Output before read-only data.  */
      57  
      58  #define TEXT_SECTION_ASM_OP "\t.text"
      59  
      60  /* Output before writable (initialized) data.  */
      61  
      62  #define DATA_SECTION_ASM_OP "\t.data"
      63  
      64  /* Output before writable (uninitialized) data.  */
      65  
      66  #define BSS_SECTION_ASM_OP "\t.bss"
      67  
      68  /* Globalizing directive for a label.  */
      69  #define GLOBAL_ASM_OP "\t.globl\t"
      70  
      71  /* By default, target has a 80387, uses IEEE compatible arithmetic,
      72     and returns float values in the 387.  */
      73  #undef TARGET_SUBTARGET_DEFAULT
      74  #define TARGET_SUBTARGET_DEFAULT \
      75  	(MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS)
      76  
      77  /* By default, 64-bit mode uses 128-bit long double.  */
      78  #undef TARGET_SUBTARGET64_DEFAULT
      79  #define TARGET_SUBTARGET64_DEFAULT \
      80  	MASK_128BIT_LONG_DOUBLE