| 1 | /* Definitions for Unix assembler syntax for the Intel 80386.
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| 2 | Copyright (C) 1988, 1994, 1999, 2000, 2001 Free Software Foundation, Inc.
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| 3 |
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| 4 | This file is part of GNU CC.
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| 5 |
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| 6 | GNU CC is free software; you can redistribute it and/or modify
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| 7 | it under the terms of the GNU General Public License as published by
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| 8 | the Free Software Foundation; either version 2, or (at your option)
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| 9 | any later version.
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| 10 |
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| 11 | GNU CC is distributed in the hope that it will be useful,
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | GNU General Public License for more details.
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| 15 |
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| 16 | You should have received a copy of the GNU General Public License
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| 17 | along with GNU CC; see the file COPYING. If not, write to
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| 18 | the Free Software Foundation, 59 Temple Place - Suite 330,
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| 19 | Boston, MA 02111-1307, USA. */
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| 20 |
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| 21 | /* This file defines the aspects of assembler syntax
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| 22 | that are the same for all the i386 Unix systems
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| 23 | (though they may differ in non-Unix systems). */
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| 24 |
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| 25 | #define DEFAULT_ASSEMBLER_DIALECT 0
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| 26 |
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| 27 | /* Define macro used to output shift-double opcodes when the shift
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| 28 | count is in %cl. Some assemblers require %cl as an argument;
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| 29 | some don't. This macro controls what to do: by default, don't
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| 30 | print %cl. */
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| 31 | #define SHIFT_DOUBLE_OMITS_COUNT 1
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| 32 | |
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| 33 |
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| 34 | /* Define the syntax of pseudo-ops, labels and comments. */
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| 35 |
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| 36 | /* String containing the assembler's comment-starter. */
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| 37 |
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| 38 | #define ASM_COMMENT_START "/"
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| 39 |
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| 40 | /* Output to assembler file text saying following lines
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| 41 | may contain character constants, extra white space, comments, etc. */
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| 42 |
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| 43 | #define ASM_APP_ON "/APP\n"
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| 44 |
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| 45 | /* Output to assembler file text saying following lines
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| 46 | no longer contain unusual constructs. */
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| 47 |
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| 48 | #define ASM_APP_OFF "/NO_APP\n"
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| 49 |
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| 50 | /* Output before read-only data. */
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| 51 |
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| 52 | #define TEXT_SECTION_ASM_OP "\t.text"
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| 53 |
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| 54 | /* Output before writable (initialized) data. */
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| 55 |
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| 56 | #define DATA_SECTION_ASM_OP "\t.data"
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| 57 |
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| 58 | /* Output before writable (uninitialized) data. */
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| 59 |
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| 60 | #define BSS_SECTION_ASM_OP "\t.bss"
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| 61 |
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| 62 | /* This is how to output a command to make the user-level label named NAME
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| 63 | defined for reference from other files. */
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| 64 |
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| 65 | #define ASM_GLOBALIZE_LABEL(FILE,NAME) \
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| 66 | (fputs (".globl ", FILE), assemble_name (FILE, NAME), fputs ("\n", FILE))
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| 67 |
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| 68 | /* By default, target has a 80387, uses IEEE compatible arithmetic,
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| 69 | and returns float values in the 387. */
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| 70 |
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| 71 | #define TARGET_SUBTARGET_DEFAULT (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS)
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| 72 |
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| 73 | /* Floating-point return values come in the FP register. */
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| 74 |
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| 75 | #define VALUE_REGNO(MODE) \
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| 76 | (GET_MODE_CLASS (MODE) == MODE_FLOAT \
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| 77 | && TARGET_FLOAT_RETURNS_IN_80387 ? FIRST_FLOAT_REG \
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| 78 | : (MODE) == TImode || VECTOR_MODE_P (MODE) ? FIRST_SSE_REG \
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| 79 | : 0)
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| 80 |
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| 81 | /* Output code to add DELTA to the first argument, and then jump to FUNCTION.
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| 82 | Used for C++ multiple inheritance. */
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| 83 | #define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION) \
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| 84 | x86_output_mi_thunk (FILE, DELTA, FUNCTION);
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