db_disasm.c revision 1.2
1 /* $NetBSD: db_disasm.c,v 1.2 1995/11/30 00:59:34 jtc Exp $ */ 2 /* 3 * Copyright (c) 1995 Ludd, University of Lule}, Sweden. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed at Ludd, University of 17 * Lule}, Sweden and its contributors. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 34 #include <sys/param.h> 35 #include <sys/proc.h> 36 #include <sys/reboot.h> 37 38 #include <ddb/db_variables.h> 39 40 #include <machine/db_machdep.h> 41 42 43 44 struct vax_insn { 45 char *insn; 46 int nargs; 47 } instr[] = { 48 "halt", 0, 49 "nop", 0, 50 "rei", 0, 51 "bpt", 0, 52 "ret", 0, 53 "rsb", 0, 54 "ldpctx", 0, 55 "svpctx", 0, 56 "cvtps", 4, 57 "cvtsp", 4, 58 "index", 6, 59 "crc", 4, 60 "prober", 3, 61 "probew", 3, 62 "insque", 2, 63 "remque", 2, 64 "", -1, 65 "", -1, 66 "", -1, 67 "", -1, 68 "", -1, 69 "", -1, 70 "", -1, 71 "", -1, 72 "", -1, 73 "", -1, 74 "", -1, 75 "", -1, 76 "", -1, 77 "", -1, 78 "", -1, 79 "", -1, 80 "", -1, 81 "", -1, 82 "", -1, 83 "", -1, 84 "", -1, 85 "", -1, 86 "", -1, 87 "", -1, 88 "", -1, 89 "", -1, 90 "", -1, 91 "", -1, 92 "", -1, 93 "", -1, 94 "", -1, 95 "", -1, 96 "", -1, 97 "", -1, 98 "", -1, 99 "", -1, 100 "", -1, 101 "", -1, 102 "", -1, 103 "", -1, 104 "", -1, 105 "", -1, 106 "", -1, 107 "", -1, 108 "", -1, 109 "", -1, 110 "", -1, 111 "", -1, 112 "", -1, 113 "", -1, 114 "", -1, 115 "", -1, 116 "", -1, 117 "", -1, 118 "", -1, 119 "", -1, 120 "", -1, 121 "", -1, 122 "", -1, 123 "", -1, 124 "", -1, 125 "", -1, 126 "", -1, 127 "", -1, 128 "", -1, 129 "", -1, 130 "", -1, 131 "", -1, 132 "", -1, 133 "", -1, 134 "", -1, 135 "", -1, 136 "", -1, 137 "", -1, 138 "", -1, 139 "", -1, 140 "", -1, 141 "", -1, 142 "", -1, 143 "", -1, 144 "", -1, 145 "", -1, 146 "", -1, 147 "", -1, 148 "", -1, 149 "", -1, 150 "", -1, 151 "", -1, 152 "", -1, 153 "", -1, 154 "", -1, 155 "", -1, 156 "", -1, 157 "", -1, 158 "", -1, 159 "", -1, 160 "", -1, 161 "", -1, 162 "", -1, 163 "", -1, 164 "", -1, 165 "", -1, 166 "", -1, 167 "", -1, 168 "", -1, 169 "", -1, 170 "", -1, 171 "", -1, 172 "", -1, 173 "", -1, 174 "", -1, 175 "", -1, 176 "", -1, 177 "", -1, 178 "", -1, 179 "", -1, 180 "", -1, 181 "", -1, 182 "", -1, 183 "", -1, 184 "", -1, 185 "", -1, 186 "", -1, 187 "", -1, 188 "", -1, 189 "", -1, 190 "", -1, 191 "", -1, 192 "", -1, 193 "", -1, 194 "", -1, 195 "", -1, 196 "", -1, 197 "", -1, 198 "", -1, 199 "", -1, 200 "", -1, 201 "", -1, 202 "", -1, 203 "", -1, 204 "", -1, 205 "", -1, 206 "", -1, 207 "", -1, 208 "", -1, 209 "", -1, 210 "", -1, 211 "", -1, 212 "", -1, 213 "", -1, 214 "", -1, 215 "", -1, 216 "", -1, 217 "", -1, 218 "", -1, 219 "", -1, 220 "", -1, 221 "", -1, 222 "", -1, 223 "", -1, 224 "", -1, 225 "", -1, 226 "", -1, 227 "", -1, 228 "", -1, 229 "", -1, 230 "", -1, 231 "", -1, 232 "", -1, 233 "", -1, 234 "", -1, 235 "", -1, 236 "", -1, 237 "", -1, 238 "", -1, 239 "", -1, 240 "", -1, 241 "", -1, 242 "", -1, 243 "", -1, 244 "", -1, 245 "", -1, 246 "", -1, 247 "", -1, 248 "", -1, 249 "", -1, 250 "", -1, 251 "", -1, 252 "", -1, 253 "", -1, 254 "", -1, 255 "", -1, 256 "", -1, 257 "", -1, 258 "", -1, 259 "", -1, 260 "", -1, 261 "", -1, 262 "", -1, 263 "", -1, 264 "", -1, 265 "", -1, 266 "", -1, 267 "", -1, 268 "", -1, 269 "", -1, 270 "", -1, 271 "", -1, 272 "", -1, 273 "", -1, 274 "", -1, 275 "", -1, 276 "", -1, 277 "", -1, 278 "", -1, 279 "", -1, 280 "", -1, 281 "", -1, 282 "", -1, 283 "", -1, 284 "", -1, 285 "", -1, 286 "", -1, 287 "", -1, 288 "", -1, 289 "", -1, 290 "", -1, 291 "", -1, 292 "", -1, 293 "", -1, 294 "", -1, 295 "", -1, 296 "", -1, 297 "", -1, 298 "", -1, 299 "", -1, 300 "", -1, 301 "", -1, 302 "", -1, 303 "", -1, 304 "", -1, 305 "", -1, 306 "", -1, 307 "", -1, 308 "", -1, 309 "", -1, 310 "", -1, 311 "", -1, 312 "", -1, 313 "", -1, 314 "", -1, 315 "", -1, 316 "", -1, 317 "", -1, 318 "", -1, 319 "", -1, 320 }; 321 322 323 /* 324 * Disassemble instruction at 'loc'. 'altfmt' specifies an 325 * (optional) alternate format. Return address of start of 326 * next instruction. 327 */ 328 db_addr_t 329 db_disasm(loc, altfmt) 330 db_addr_t loc; 331 boolean_t altfmt; 332 { 333 char *i_pl; 334 int inr, i; 335 336 i_pl = (char *)loc; 337 inr = *i_pl; 338 339 if (instr[*i_pl].nargs < 0) { 340 printf("Ok{nd instruktion: %2x",*i_pl&0xff); 341 i_pl++; 342 } else { 343 printf("\t%s\t",instr[inr].insn); 344 i_pl++; 345 for (i=0;i<instr[inr].nargs;i++) { 346 i_pl = (char *)argprint(i_pl); 347 if (i<instr[inr].nargs-1) 348 printf(","); 349 } 350 } 351 352 353 354 return (int)i_pl; 355 } 356 357 argprint(plats) 358 char *plats; 359 { 360 switch (*plats&0xf0) { 361 case 0x00: 362 case 0x10: 363 case 0x20: 364 case 0x30: 365 printf("$%x",*plats++); 366 break; 367 368 case 0xe0: 369 if (*plats++&15 == 15) { 370 printf("%8x",*(unsigned *)plats + plats); 371 plats += 4; 372 } else { 373 printf("Oinpl. s{tt."); 374 } 375 break; 376 default: 377 printf("Oinpl. s{tt."); 378 } 379 return (int)plats; 380 } 381
Indexes created Fri Oct 03 02:09:57 GMT 2025