129 lines
4.1 KiB
C
129 lines
4.1 KiB
C
/* Definitions for BSD assembler syntax for Intel 386
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(actually AT&T syntax for insns and operands,
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adapted to BSD conventions for symbol names and debugging.)
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Copyright (C) 1988, 1996 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Include common aspects of all 386 Unix assemblers. */
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#include "i386/unix.h"
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/* Use the Sequent Symmetry assembler syntax. */
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#define TARGET_VERSION fprintf (stderr, " (80386, BSD syntax)");
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/* Define the syntax of pseudo-ops, labels and comments. */
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/* Prefix for internally generated assembler labels. If we aren't using
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underscores, we are using prefix `.'s to identify labels that should
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be ignored, as in `i386/gas.h' --karl@cs.umb.edu */
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#ifdef NO_UNDERSCORES
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#define LPREFIX ".L"
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#else
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#define LPREFIX "L"
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#endif /* not NO_UNDERSCORES */
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/* Assembler pseudos to introduce constants of various size. */
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#define ASM_BYTE_OP "\t.byte"
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#define ASM_SHORT "\t.word"
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#define ASM_LONG "\t.long"
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#define ASM_DOUBLE "\t.double"
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/* Output at beginning of assembler file.
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??? I am skeptical of this -- RMS. */
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#define ASM_FILE_START(FILE) \
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do { output_file_directive (FILE, main_input_filename); \
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} while (0)
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/* This was suggested, but it shouldn't be right for DBX output. -- RMS
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#define ASM_OUTPUT_SOURCE_FILENAME(FILE, NAME) */
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/* Define the syntax of labels and symbol definitions/declarations. */
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/* This is how to output an assembler line
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that says to advance the location counter by SIZE bytes. */
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#define ASM_OUTPUT_SKIP(FILE,SIZE) \
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fprintf (FILE, "\t.space %u\n", (SIZE))
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/* Define the syntax of labels and symbol definitions/declarations. */
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/* This says how to output an assembler line
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to define a global common symbol. */
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#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \
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( fputs (".comm ", (FILE)), \
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assemble_name ((FILE), (NAME)), \
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fprintf ((FILE), ",%u\n", (ROUNDED)))
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/* This says how to output an assembler line
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to define a local common symbol. */
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#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
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( fputs (".lcomm ", (FILE)), \
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assemble_name ((FILE), (NAME)), \
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fprintf ((FILE), ",%u\n", (ROUNDED)))
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/* This is how to output an assembler line
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that says to advance the location counter
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to a multiple of 2**LOG bytes. */
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#define ASM_OUTPUT_ALIGN(FILE,LOG) \
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if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", (LOG))
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/* This is how to store into the string BUF
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the symbol_ref name of an internal numbered label where
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PREFIX is the class of label and NUM is the number within the class.
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This is suitable for output with `assemble_name'. */
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#ifdef NO_UNDERSCORES
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#define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER) \
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sprintf ((BUF), "*.%s%d", (PREFIX), (NUMBER))
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#else
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#define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER) \
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sprintf ((BUF), "*%s%d", (PREFIX), (NUMBER))
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#endif
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/* This is how to output an internal numbered label where
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PREFIX is the class of label and NUM is the number within the class. */
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#ifdef NO_UNDERSCORES
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#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
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fprintf (FILE, ".%s%d:\n", PREFIX, NUM)
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#else
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#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \
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fprintf (FILE, "%s%d:\n", PREFIX, NUM)
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#endif
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/* The prefix to add to user-visible assembler symbols. */
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#ifdef NO_UNDERSCORES
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#define USER_LABEL_PREFIX ""
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#else
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#define USER_LABEL_PREFIX "_"
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#endif /* not NO_UNDERSCORES */
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/* Sequent has some changes in the format of DBX symbols. */
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#define DBX_NO_XREFS 1
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/* Don't split DBX symbols into continuations. */
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#define DBX_CONTIN_LENGTH 0
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