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      1 /* Definitions for BSD assembler syntax for Intel 386
      2    (actually AT&T syntax for insns and operands,
      3    adapted to BSD conventions for symbol names and debugging.)
      4    Copyright (C) 1988-2013 Free Software Foundation, Inc.
      5 
      6 This file is part of GCC.
      7 
      8 GCC is free software; you can redistribute it and/or modify
      9 it under the terms of the GNU General Public License as published by
     10 the Free Software Foundation; either version 3, or (at your option)
     11 any later version.
     12 
     13 GCC is distributed in the hope that it will be useful,
     14 but WITHOUT ANY WARRANTY; without even the implied warranty of
     15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16 GNU General Public License for more details.
     17 
     18 You should have received a copy of the GNU General Public License
     19 along with GCC; see the file COPYING3.  If not see
     20 <http://www.gnu.org/licenses/>.  */
     21 
     22 /* Use the Sequent Symmetry assembler syntax.  */
     23 
     24 /* Define the syntax of pseudo-ops, labels and comments.  */
     26 
     27 /* Prefix for internally generated assembler labels.  If we aren't using
     28    underscores, we are using prefix `.'s to identify labels that should
     29    be ignored, as in `i386/gas.h' --karl (at) cs.umb.edu  */
     30 
     31 #define LPREFIX "L"
     32 
     33 /* Assembler pseudos to introduce constants of various size.  */
     34 
     35 #define ASM_BYTE "\t.byte\t"
     36 #define ASM_SHORT "\t.word\t"
     37 #define ASM_LONG "\t.long\t"
     38 #define ASM_QUAD "\t.quad\t"  /* Should not be used for 32bit compilation.  */
     39 
     40 /* This was suggested, but it shouldn't be right for DBX output. -- RMS
     41    #define ASM_OUTPUT_SOURCE_FILENAME(FILE, NAME) */
     42 
     43 
     44 /* Define the syntax of labels and symbol definitions/declarations.  */
     46 
     47 /* This is how to output an assembler line
     48    that says to advance the location counter by SIZE bytes.  */
     49 
     50 #define ASM_OUTPUT_SKIP(FILE,SIZE)  \
     51   fprintf (FILE, "\t.space "HOST_WIDE_INT_PRINT_UNSIGNED"\n", (SIZE))
     52 
     53 /* Define the syntax of labels and symbol definitions/declarations.  */
     55 
     56 /* This says how to output an assembler line
     57    to define a global common symbol.  */
     58 
     59 #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED)  \
     60 ( fputs (".comm ", (FILE)),			\
     61   assemble_name ((FILE), (NAME)),		\
     62   fprintf ((FILE), ",%u\n", (int)(ROUNDED)))
     63 
     64 /* This says how to output an assembler line
     65    to define a local common symbol.  */
     66 
     67 #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)  \
     68 ( fputs (".lcomm ", (FILE)),			\
     69   assemble_name ((FILE), (NAME)),		\
     70   fprintf ((FILE), ",%u\n", (int)(ROUNDED)))
     71 
     72 #ifdef HAVE_GAS_LCOMM_WITH_ALIGNMENT
     73 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGNMENT)  \
     74 ( fputs (".lcomm ", (FILE)),			\
     75   assemble_name ((FILE), (NAME)),		\
     76   fprintf ((FILE), ",%u,%u\n", (int)(SIZE), (int)(ALIGNMENT) / BITS_PER_UNIT))
     77 #endif
     78 
     79 /* This is how to output an assembler line
     80    that says to advance the location counter
     81    to a multiple of 2**LOG bytes.  */
     82 
     83 #define ASM_OUTPUT_ALIGN(FILE,LOG)	\
     84   if ((LOG)!=0) fprintf ((FILE), "\t.align %d\n", (LOG))
     85 
     86 /* This is how to store into the string BUF
     87    the symbol_ref name of an internal numbered label where
     88    PREFIX is the class of label and NUM is the number within the class.
     89    This is suitable for output with `assemble_name'.  */
     90 
     91 #define ASM_GENERATE_INTERNAL_LABEL(BUF,PREFIX,NUMBER)	\
     92     sprintf ((BUF), "*%s%ld", (PREFIX), (long)(NUMBER))
     93 
     94 /* The prefix to add to user-visible assembler symbols.  */
     95 
     96 #define USER_LABEL_PREFIX "_"
     97 
     98 /* Sequent has some changes in the format of DBX symbols.  */
     99 #define DBX_NO_XREFS 1
    100 
    101 /* Don't split DBX symbols into continuations.  */
    102 #define DBX_CONTIN_LENGTH 0
    103