gas/config/tc-ns32k.h

   1 /* tc-ns32k.h -- Opcode table for National Semi 32k processor
   2    Copyright (C) 1987, 92, 93, 94, 95, 1997 Free Software Foundation, Inc.
   3
   4    This file is part of GAS, the GNU Assembler.
   5
   6    GAS 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    GAS 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 GAS; see the file COPYING.  If not, write to the Free
  18    Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  19    02111-1307, USA.  */
  20
  21 #define TC_NS32K
  22
  23 #define TARGET_BYTES_BIG_ENDIAN 0
  24
  25 #define TC_PCREL_ADJUST(F) md_pcrel_adjust(F)
  26
  27 #ifdef BFD_ASSEMBLER
  28 #define NO_RELOC BFD_RELOC_NONE
  29
  30 #define TARGET_ARCH             bfd_arch_ns32k
  31
  32 #ifndef TARGET_FORMAT           /* Maybe defined in te-*.h */
  33 #define TARGET_FORMAT           "a.out-pc532-mach"
  34 #endif
  35 #else
  36 #define NO_RELOC 0
  37 #endif
  38
  39 #define LOCAL_LABELS_FB 1
  40
  41 #include "bit_fix.h"
  42
  43 #define tc_aout_pre_write_hook(x)       {;}     /* not used */
  44 #define tc_crawl_symbol_chain(a)        {;}     /* not used */
  45 #define tc_headers_hook(a)              {;}     /* not used */
  46
  47 #ifdef SEQUENT_COMPATABILITY
  48 #define DEF_MODEC 20
  49 #define DEF_MODEL 21
  50 #endif
  51
  52 #ifndef DEF_MODEC
  53 #define DEF_MODEC 20
  54 #endif
  55
  56 #ifndef DEF_MODEL
  57 #define DEF_MODEL 20
  58 #endif
  59
  60 #define MAX_ARGS 4
  61 #define ARG_LEN 50
  62
  63 #define TC_CONS_FIX_NEW cons_fix_new_ns32k
  64 extern void fix_new_ns32k_exp PARAMS((fragS *frag,
  65                                    int where,
  66                                    int size,
  67                                    expressionS *exp,
  68                                    int pcrel,
  69                                    int im_disp,
  70                                    bit_fixS *bit_fixP,  /* really bit_fixS */
  71                                    int bsr,
  72                                    fragS *opcode_frag,
  73                                    unsigned int opcode_offset));
  74
  75
  76 extern void fix_new_ns32k PARAMS ((fragS *frag,
  77                                    int where,
  78                                    int size,
  79                                    struct symbol *add_symbol,
  80                                    long offset,
  81                                    int pcrel,
  82                                    int im_disp,
  83                                    bit_fixS *bit_fixP,  /* really bit_fixS */
  84                                    int bsr,
  85                                    fragS *opcode_frag,
  86                                    unsigned int opcode_offset));
  87
  88 extern void cons_fix_new_ns32k PARAMS ((fragS *frag,
  89                                         int where,
  90                                         int size,
  91                                         expressionS *exp));
  92
  93 /* the NS32x32 has a non 0 nop instruction which should be used in aligns */
  94 #define NOP_OPCODE 0xa2
  95
  96 #define md_operand(x)
  97
  98 extern const struct relax_type md_relax_table[];
  99 #define TC_GENERIC_RELAX_TABLE md_relax_table
 100
 101
 102 #define TC_FRAG_INIT(X)                         \
 103   do                                            \
 104      {                                          \
 105        frag_opcode_frag(X) = NULL;              \
 106        frag_opcode_offset(X) = 0;               \
 107        frag_bsr(X) = 0;                         \
 108      }                                          \
 109   while(0)
 110
 111 /* Accessor macros for things which may move around */
 112 #define frag_opcode_frag(X) (X)->fr_targ.fr_ns32k.fr_opcode_fragP
 113 #define frag_opcode_offset(X) (X)->fr_targ.fr_ns32k.fr_opcode_offset
 114 #define frag_bsr(X) (X)->fr_targ.fr_ns32k.fr_bsr
 115
 116 #define TC_FIX_TYPE                             \
 117 struct                                          \
 118 {                                               \
 119   fragS *opcode_fragP;                          \
 120   unsigned int opcode_offset;                   \
 121   unsigned int bsr : 1;                         \
 122 }
 123
 124 /* Accessor macros for things which may move around.
 125    See comments in write.h.  */
 126 #define fix_im_disp(X)  (X)->fx_im_disp
 127 #define fix_bit_fixP(X) (X)->fx_bit_fixP
 128 #define fix_opcode_frag(X) (X)->tc_fix_data.opcode_fragP
 129 #define fix_opcode_offset(X) (X)->tc_fix_data.opcode_offset
 130 #define fix_bsr(X) (X)->tc_fix_data.bsr
 131
 132 #define TC_INIT_FIX_DATA(X)                     \
 133   do                                            \
 134      {                                          \
 135        fix_opcode_frag(X) = NULL;               \
 136        fix_opcode_offset(X) = 0;                \
 137        fix_bsr(X) = 0;                          \
 138      }                                          \
 139   while(0)
 140
 141 #define TC_FIX_DATA_PRINT(FILE, FIXP)                                   \
 142   do                                                                    \
 143     {                                                                   \
 144       fprintf((FILE), "opcode_frag=%ld, operand offset=%d, bsr=%d\n",   \
 145               (unsigned long) fix_opcode_frag (FIXP),                   \
 146               fix_opcode_offset (FIXP),                                 \
 147               fix_bsr (FIXP));                                          \
 148     }                                                                   \
 149   while(0)