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 */ 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 48/* -- opc.c */ 49 50/* -- */ 51 52/* -- asm.c */ 53/* Handle '#' prefixes (i.e. skip over them). */ 54 55static const char * 56parse_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 { 63 ++*strp; 64 return NULL; 65 } 66 return _("Missing '#' prefix"); 67} 68 69/* Handle '.' prefixes (i.e. skip over them). */ 70 71static const char * 72parse_dot (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 73 const char **strp, 74 int opindex ATTRIBUTE_UNUSED, 75 long *valuep ATTRIBUTE_UNUSED) 76{ 77 if (**strp == '.') 78 { 79 ++*strp; 80 return NULL; 81 } 82 return _("Missing '.' prefix"); 83} 84 85/* Handle 'pof:' prefixes (i.e. skip over them). */ 86 87static const char * 88parse_pof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 89 const char **strp, 90 int opindex ATTRIBUTE_UNUSED, 91 long *valuep ATTRIBUTE_UNUSED) 92{ 93 if (strncasecmp (*strp, "pof:", 4) == 0) 94 { 95 *strp += 4; 96 return NULL; 97 } 98 return _("Missing 'pof:' prefix"); 99} 100 101/* Handle 'pag:' prefixes (i.e. skip over them). */ 102 103static const char * 104parse_pag (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 105 const char **strp, 106 int opindex ATTRIBUTE_UNUSED, 107 long *valuep ATTRIBUTE_UNUSED) 108{ 109 if (strncasecmp (*strp, "pag:", 4) == 0) 110 { 111 *strp += 4; 112 return NULL; 113 } 114 return _("Missing 'pag:' prefix"); 115} 116 117/* Handle 'sof' prefixes (i.e. skip over them). */ 118 119static const char * 120parse_sof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 121 const char **strp, 122 int opindex ATTRIBUTE_UNUSED, 123 long *valuep ATTRIBUTE_UNUSED) 124{ 125 if (strncasecmp (*strp, "sof:", 4) == 0) 126 { 127 *strp += 4; 128 return NULL; 129 } 130 return _("Missing 'sof:' prefix"); 131} 132 133/* Handle 'seg' prefixes (i.e. skip over them). */ 134 135static const char * 136parse_seg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 137 const char **strp, 138 int opindex ATTRIBUTE_UNUSED, 139 long *valuep ATTRIBUTE_UNUSED) 140{ 141 if (strncasecmp (*strp, "seg:", 4) == 0) 142 { 143 *strp += 4; 144 return NULL; 145 } 146 return _("Missing 'seg:' prefix"); 147} 148/* -- */ 149 150/* -- dis.c */ 151 152/* Print an operand with a "." prefix. 153 NOTE: This prints the operand in hex. 154 ??? This exists to maintain disassembler compatibility with previous 155 versions. Ideally we'd print the "." in print_dot. */ 156 157static void 158print_with_dot_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 159 void * dis_info, 160 long value, 161 unsigned attrs ATTRIBUTE_UNUSED, 162 bfd_vma pc ATTRIBUTE_UNUSED, 163 int length ATTRIBUTE_UNUSED) 164{ 165 disassemble_info *info = (disassemble_info *) dis_info; 166 167 info->fprintf_func (info->stream, "."); 168 info->fprintf_func (info->stream, "0x%lx", value); 169} 170 171/* Print an operand with a "#pof:" prefix. 172 NOTE: This prints the operand as an address. 173 ??? This exists to maintain disassembler compatibility with previous 174 versions. Ideally we'd print "#pof:" in print_pof. */ 175 176static void 177print_with_pof_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 178 void * dis_info, 179 bfd_vma value, 180 unsigned attrs ATTRIBUTE_UNUSED, 181 bfd_vma pc ATTRIBUTE_UNUSED, 182 int length ATTRIBUTE_UNUSED) 183{ 184 disassemble_info *info = (disassemble_info *) dis_info; 185 186 info->fprintf_func (info->stream, "#pof:"); 187 info->fprintf_func (info->stream, "0x%lx", (long) value); 188} 189 190/* Print an operand with a "#pag:" prefix. 191 NOTE: This prints the operand in hex. 192 ??? This exists to maintain disassembler compatibility with previous 193 versions. Ideally we'd print "#pag:" in print_pag. */ 194 195static void 196print_with_pag_prefix (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 197 void * dis_info, 198 long value, 199 unsigned attrs ATTRIBUTE_UNUSED, 200 bfd_vma pc ATTRIBUTE_UNUSED, 201 int length ATTRIBUTE_UNUSED) 202{ 203 disassemble_info *info = (disassemble_info *) dis_info; 204 205 info->fprintf_func (info->stream, "#pag:"); 206 info->fprintf_func (info->stream, "0x%lx", value); 207} 208 209/* Print a 'pof:' prefix to an operand. */ 210 211static void 212print_pof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 213 void * dis_info ATTRIBUTE_UNUSED, 214 long value ATTRIBUTE_UNUSED, 215 unsigned int attrs ATTRIBUTE_UNUSED, 216 bfd_vma pc ATTRIBUTE_UNUSED, 217 int length ATTRIBUTE_UNUSED) 218{ 219} 220 221/* Print a 'pag:' prefix to an operand. */ 222 223static void 224print_pag (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 225 void * dis_info ATTRIBUTE_UNUSED, 226 long value ATTRIBUTE_UNUSED, 227 unsigned int attrs ATTRIBUTE_UNUSED, 228 bfd_vma pc ATTRIBUTE_UNUSED, 229 int length ATTRIBUTE_UNUSED) 230{ 231} 232 233/* Print a 'sof:' prefix to an operand. */ 234 235static void 236print_sof (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 237 void * dis_info, 238 long value ATTRIBUTE_UNUSED, 239 unsigned int attrs ATTRIBUTE_UNUSED, 240 bfd_vma pc ATTRIBUTE_UNUSED, 241 int length ATTRIBUTE_UNUSED) 242{ 243 disassemble_info *info = (disassemble_info *) dis_info; 244 245 info->fprintf_func (info->stream, "sof:"); 246} 247 248/* Print a 'seg:' prefix to an operand. */ 249 250static void 251print_seg (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 252 void * dis_info, 253 long value ATTRIBUTE_UNUSED, 254 unsigned int attrs ATTRIBUTE_UNUSED, 255 bfd_vma pc ATTRIBUTE_UNUSED, 256 int length ATTRIBUTE_UNUSED) 257{ 258 disassemble_info *info = (disassemble_info *) dis_info; 259 260 info->fprintf_func (info->stream, "seg:"); 261} 262 263/* Print a '#' prefix to an operand. */ 264 265static void 266print_hash (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 267 void * dis_info, 268 long value ATTRIBUTE_UNUSED, 269 unsigned int attrs ATTRIBUTE_UNUSED, 270 bfd_vma pc ATTRIBUTE_UNUSED, 271 int length ATTRIBUTE_UNUSED) 272{ 273 disassemble_info *info = (disassemble_info *) dis_info; 274 275 info->fprintf_func (info->stream, "#"); 276} 277 278/* Print a '.' prefix to an operand. */ 279 280static void 281print_dot (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 282 void * dis_info ATTRIBUTE_UNUSED, 283 long value ATTRIBUTE_UNUSED, 284 unsigned int attrs ATTRIBUTE_UNUSED, 285 bfd_vma pc ATTRIBUTE_UNUSED, 286 int length ATTRIBUTE_UNUSED) 287{ 288} 289 290/* -- */ 291