cpu/xc16x.opc

   1 /* XC16X opcode support.  -*- C -*-
   2
   3    Copyright 2006 Free Software Foundation, Inc.
   4
   5    Contributed by KPIT Cummins Infosystems Ltd.; developed under contract
   6    from Infineon Systems, GMBH , Germany.
   7
   8    This file is part of the GNU Binutils.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
  23    02110-1301, USA.  */
  24
  25
  26 /* This file is an addendum to xc16x.cpu.  Heavy use of C code isn't
  27    appropriate in .cpu files, so it resides here.  This especially applies
  28    to assembly/disassembly where parsing/printing can be quite involved.
  29    Such things aren't really part of the specification of the cpu, per se,
  30    so .cpu files provide the general framework and .opc files handle the
  31    nitty-gritty details as necessary.
  32
  33    Each section is delimited with start and end markers.
  34
  35    <arch>-opc.h additions use: "-- opc.h"
  36    <arch>-opc.c additions use: "-- opc.c"
  37    <arch>-asm.c additions use: "-- asm.c"
  38    <arch>-dis.c additions use: "-- dis.c"
  39    <arch>-ibd.h additions use: "-- ibd.h"  */
  40 \f
  41 /* -- opc.h */
  42
  43 #define CGEN_DIS_HASH_SIZE 8
  44 #define CGEN_DIS_HASH(buf,value) (((* (unsigned char*) (buf)) >> 3) % CGEN_DIS_HASH_SIZE)
  45
  46 /* -- */
  47 \f
  48 /* -- opc.c */
  49
  50 /* -- */
  51 \f
  52 /* -- asm.c */
  53 /* Handle '#' prefixes (i.e. skip over them).  */
  54
  55 static const char *
  56 parse_hash (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
  57             const char **strp,
  58             int opindex ATTRIBUTE_UNUSED,
  59             long *valuep ATTRIBUTE_UNUSED)
  60 {
  61   if (**strp == '#')
  62     ++*strp;
  63   return NULL;
  64 }
  65
  66 /* Handle '.' prefixes (i.e. skip over them).  */
  67
  68 static const char *
  69 parse_dot (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
  70            const char **strp,
  71            int opindex ATTRIBUTE_UNUSED,
  72            long *valuep ATTRIBUTE_UNUSED)
  73 {
  74   if (**strp == '.')
  75     ++*strp;
  76   return NULL;
  77 }
  78
  79 /* Handle '.' prefixes (i.e. skip over them).  */
  80
  81 static const char *
  82 parse_pof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
  83            const char **strp,
  84            int opindex ATTRIBUTE_UNUSED,
  85            long *valuep ATTRIBUTE_UNUSED)
  86 {
  87   if (!strncasecmp (*strp, "pof:", 4))
  88     *strp += 4;
  89   return NULL;
  90 }
  91
  92 /* Handle '.' prefixes (i.e. skip over them).  */
  93
  94 static const char *
  95 parse_pag (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
  96            const char **strp,
  97            int opindex ATTRIBUTE_UNUSED,
  98            long *valuep ATTRIBUTE_UNUSED)
  99 {
 100   if (!strncasecmp (*strp, "pag:", 4))
 101     *strp += 4;
 102   return NULL;
 103 }
 104
 105 /* Handle 'sof' prefixes (i.e. skip over them).  */
 106 static const char *
 107 parse_sof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 108            const char **strp,
 109            int opindex ATTRIBUTE_UNUSED,
 110            long *valuep ATTRIBUTE_UNUSED)
 111 {
 112   if (!strncasecmp (*strp, "sof:", 4))
 113     *strp += 4;
 114   return NULL;
 115 }
 116
 117 /* Handle 'seg' prefixes (i.e. skip over them).  */
 118 static const char *
 119 parse_seg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 120            const char **strp,
 121            int opindex ATTRIBUTE_UNUSED,
 122            long *valuep ATTRIBUTE_UNUSED)
 123 {
 124   if (!strncasecmp (*strp, "seg:", 4))
 125     *strp += 4;
 126   return NULL;
 127 }
 128 /* -- */
 129 \f
 130 /* -- dis.c */
 131
 132 #define CGEN_PRINT_NORMAL(cd, info, value, attrs, pc, length)   \
 133   do                                                            \
 134     {                                                           \
 135       if (CGEN_BOOL_ATTR ((attrs), CGEN_OPERAND_DOT_PREFIX))    \
 136         info->fprintf_func (info->stream, ".");                 \
 137       if (CGEN_BOOL_ATTR ((attrs), CGEN_OPERAND_POF_PREFIX))    \
 138         info->fprintf_func (info->stream, "#pof:");             \
 139       if (CGEN_BOOL_ATTR ((attrs), CGEN_OPERAND_PAG_PREFIX))    \
 140         info->fprintf_func (info->stream, "#pag:");             \
 141     }                                                           \
 142   while (0)
 143
 144 /* Handle '.' prefixes as operands.  */
 145
 146 static void
 147 print_pof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 148            void * dis_info ATTRIBUTE_UNUSED,
 149            long value ATTRIBUTE_UNUSED,
 150            unsigned int attrs ATTRIBUTE_UNUSED,
 151            bfd_vma pc ATTRIBUTE_UNUSED,
 152            int length ATTRIBUTE_UNUSED)
 153 {
 154 }
 155
 156 /* Handle '.' prefixes as operands.  */
 157
 158 static void
 159 print_pag (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 160            void * dis_info ATTRIBUTE_UNUSED,
 161            long value ATTRIBUTE_UNUSED,
 162            unsigned int attrs ATTRIBUTE_UNUSED,
 163            bfd_vma pc ATTRIBUTE_UNUSED,
 164            int length ATTRIBUTE_UNUSED)
 165 {
 166 }
 167
 168 /* Handle '.' prefixes as operands.  */
 169
 170 static void
 171 print_sof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 172            void * dis_info,
 173            long value ATTRIBUTE_UNUSED,
 174            unsigned int attrs ATTRIBUTE_UNUSED,
 175            bfd_vma pc ATTRIBUTE_UNUSED,
 176            int length ATTRIBUTE_UNUSED)
 177 {
 178   disassemble_info *info = (disassemble_info *) dis_info;
 179
 180   info->fprintf_func (info->stream, "sof:");
 181 }
 182
 183 /* Handle '.' prefixes as operands.  */
 184
 185 static void
 186 print_seg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 187            void * dis_info,
 188            long value ATTRIBUTE_UNUSED,
 189            unsigned int attrs ATTRIBUTE_UNUSED,
 190            bfd_vma pc ATTRIBUTE_UNUSED,
 191            int length ATTRIBUTE_UNUSED)
 192 {
 193   disassemble_info *info = (disassemble_info *) dis_info;
 194
 195   info->fprintf_func (info->stream, "seg:");
 196 }
 197
 198 /* Handle '#' prefixes as operands.  */
 199
 200 static void
 201 print_hash (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 202             void * dis_info,
 203             long value ATTRIBUTE_UNUSED,
 204             unsigned int attrs ATTRIBUTE_UNUSED,
 205             bfd_vma pc ATTRIBUTE_UNUSED,
 206             int length ATTRIBUTE_UNUSED)
 207 {
 208   disassemble_info *info = (disassemble_info *) dis_info;
 209
 210   info->fprintf_func (info->stream, "#");
 211 }
 212
 213 /* Handle '.' prefixes as operands.  */
 214
 215 static void
 216 print_dot (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 217            void * dis_info ATTRIBUTE_UNUSED,
 218            long value ATTRIBUTE_UNUSED,
 219            unsigned int attrs ATTRIBUTE_UNUSED,
 220            bfd_vma pc ATTRIBUTE_UNUSED,
 221            int length ATTRIBUTE_UNUSED)
 222 {
 223 }
 224
 225 /* -- */