1 /* XC16X opcode support. -*- C -*- 2 3 Copyright 2006, 2007, 2009 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 3 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 41 /* -- opc.h */ 43 44 #define CGEN_DIS_HASH_SIZE 8 45 #define CGEN_DIS_HASH(buf,value) (((* (unsigned char*) (buf)) >> 3) % CGEN_DIS_HASH_SIZE) 46 47 /* -- */ 48 49 /* -- opc.c */ 51 52 /* -- */ 53 54 /* -- asm.c */ 56 /* Handle '#' prefixes (i.e. skip over them). */ 57 58 static const char * 59 parse_hash (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 60 const char **strp, 61 int opindex ATTRIBUTE_UNUSED, 62 long *valuep ATTRIBUTE_UNUSED) 63 { 64 if (**strp == '#') 65 { 66 ++*strp; 67 return NULL; 68 } 69 return _("Missing '#' prefix"); 70 } 71 72 /* Handle '.' prefixes (i.e. skip over them). */ 73 74 static const char * 75 parse_dot (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 76 const char **strp, 77 int opindex ATTRIBUTE_UNUSED, 78 long *valuep ATTRIBUTE_UNUSED) 79 { 80 if (**strp == '.') 81 { 82 ++*strp; 83 return NULL; 84 } 85 return _("Missing '.' prefix"); 86 } 87 88 /* Handle 'pof:' prefixes (i.e. skip over them). */ 89 90 static const char * 91 parse_pof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 92 const char **strp, 93 int opindex ATTRIBUTE_UNUSED, 94 long *valuep ATTRIBUTE_UNUSED) 95 { 96 if (strncasecmp (*strp, "pof:", 4) == 0) 97 { 98 *strp += 4; 99 return NULL; 100 } 101 return _("Missing 'pof:' prefix"); 102 } 103 104 /* Handle 'pag:' prefixes (i.e. skip over them). */ 105 106 static const char * 107 parse_pag (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, "pag:", 4) == 0) 113 { 114 *strp += 4; 115 return NULL; 116 } 117 return _("Missing 'pag:' prefix"); 118 } 119 120 /* Handle 'sof' prefixes (i.e. skip over them). */ 121 122 static const char * 123 parse_sof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 124 const char **strp, 125 int opindex ATTRIBUTE_UNUSED, 126 long *valuep ATTRIBUTE_UNUSED) 127 { 128 if (strncasecmp (*strp, "sof:", 4) == 0) 129 { 130 *strp += 4; 131 return NULL; 132 } 133 return _("Missing 'sof:' prefix"); 134 } 135 136 /* Handle 'seg' prefixes (i.e. skip over them). */ 137 138 static const char * 139 parse_seg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 140 const char **strp, 141 int opindex ATTRIBUTE_UNUSED, 142 long *valuep ATTRIBUTE_UNUSED) 143 { 144 if (strncasecmp (*strp, "seg:", 4) == 0) 145 { 146 *strp += 4; 147 return NULL; 148 } 149 return _("Missing 'seg:' prefix"); 150 } 151 /* -- */ 152 153 /* -- dis.c */ 155 156 /* Print an operand with a "." prefix. 157 NOTE: This prints the operand in hex. 158 ??? This exists to maintain disassembler compatibility with previous 159 versions. Ideally we'd print the "." in print_dot. */ 160 161 static void 162 print_with_dot_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 163 void * dis_info, 164 long value, 165 unsigned attrs ATTRIBUTE_UNUSED, 166 bfd_vma pc ATTRIBUTE_UNUSED, 167 int length ATTRIBUTE_UNUSED) 168 { 169 disassemble_info *info = (disassemble_info *) dis_info; 170 171 info->fprintf_func (info->stream, "."); 172 info->fprintf_func (info->stream, "0x%lx", value); 173 } 174 175 /* Print an operand with a "#pof:" prefix. 176 NOTE: This prints the operand as an address. 177 ??? This exists to maintain disassembler compatibility with previous 178 versions. Ideally we'd print "#pof:" in print_pof. */ 179 180 static void 181 print_with_pof_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 182 void * dis_info, 183 bfd_vma value, 184 unsigned attrs ATTRIBUTE_UNUSED, 185 bfd_vma pc ATTRIBUTE_UNUSED, 186 int length ATTRIBUTE_UNUSED) 187 { 188 disassemble_info *info = (disassemble_info *) dis_info; 189 190 info->fprintf_func (info->stream, "#pof:"); 191 info->fprintf_func (info->stream, "0x%lx", (long) value); 192 } 193 194 /* Print an operand with a "#pag:" prefix. 195 NOTE: This prints the operand in hex. 196 ??? This exists to maintain disassembler compatibility with previous 197 versions. Ideally we'd print "#pag:" in print_pag. */ 198 199 static void 200 print_with_pag_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 201 void * dis_info, 202 long value, 203 unsigned attrs ATTRIBUTE_UNUSED, 204 bfd_vma pc ATTRIBUTE_UNUSED, 205 int length ATTRIBUTE_UNUSED) 206 { 207 disassemble_info *info = (disassemble_info *) dis_info; 208 209 info->fprintf_func (info->stream, "#pag:"); 210 info->fprintf_func (info->stream, "0x%lx", value); 211 } 212 213 /* Print a 'pof:' prefix to an operand. */ 214 215 static void 216 print_pof (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 /* Print a 'pag:' prefix to an operand. */ 226 227 static void 228 print_pag (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 229 void * dis_info ATTRIBUTE_UNUSED, 230 long value ATTRIBUTE_UNUSED, 231 unsigned int attrs ATTRIBUTE_UNUSED, 232 bfd_vma pc ATTRIBUTE_UNUSED, 233 int length ATTRIBUTE_UNUSED) 234 { 235 } 236 237 /* Print a 'sof:' prefix to an operand. */ 238 239 static void 240 print_sof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 241 void * dis_info, 242 long value ATTRIBUTE_UNUSED, 243 unsigned int attrs ATTRIBUTE_UNUSED, 244 bfd_vma pc ATTRIBUTE_UNUSED, 245 int length ATTRIBUTE_UNUSED) 246 { 247 disassemble_info *info = (disassemble_info *) dis_info; 248 249 info->fprintf_func (info->stream, "sof:"); 250 } 251 252 /* Print a 'seg:' prefix to an operand. */ 253 254 static void 255 print_seg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 256 void * dis_info, 257 long value ATTRIBUTE_UNUSED, 258 unsigned int attrs ATTRIBUTE_UNUSED, 259 bfd_vma pc ATTRIBUTE_UNUSED, 260 int length ATTRIBUTE_UNUSED) 261 { 262 disassemble_info *info = (disassemble_info *) dis_info; 263 264 info->fprintf_func (info->stream, "seg:"); 265 } 266 267 /* Print a '#' prefix to an operand. */ 268 269 static void 270 print_hash (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 271 void * dis_info, 272 long value ATTRIBUTE_UNUSED, 273 unsigned int attrs ATTRIBUTE_UNUSED, 274 bfd_vma pc ATTRIBUTE_UNUSED, 275 int length ATTRIBUTE_UNUSED) 276 { 277 disassemble_info *info = (disassemble_info *) dis_info; 278 279 info->fprintf_func (info->stream, "#"); 280 } 281 282 /* Print a '.' prefix to an operand. */ 283 284 static void 285 print_dot (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 286 void * dis_info ATTRIBUTE_UNUSED, 287 long value ATTRIBUTE_UNUSED, 288 unsigned int attrs ATTRIBUTE_UNUSED, 289 bfd_vma pc ATTRIBUTE_UNUSED, 290 int length ATTRIBUTE_UNUSED) 291 { 292 } 293 294 /* -- */ 295
