1 /* Disassemble i80960 instructions. 2 Copyright (C) 1990-2014 Free Software Foundation, Inc. 3 4 This file is part of the GNU opcodes library. 5 6 This library 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 3, or (at your option) 9 any later version. 10 11 It is distributed in the hope that it will be useful, but WITHOUT 12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 14 License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; see the file COPYING. If not, write to the 18 Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 19 02110-1301, USA. */ 20 21 #include "sysdep.h" 22 #include "dis-asm.h" 23 24 static const char *const reg_names[] = { 25 /* 0 */ "pfp", "sp", "rip", "r3", "r4", "r5", "r6", "r7", 26 /* 8 */ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", 27 /* 16 */ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", 28 /* 24 */ "g8", "g9", "g10", "g11", "g12", "g13", "g14", "fp", 29 /* 32 */ "pc", "ac", "ip", "tc", "fp0", "fp1", "fp2", "fp3" 30 }; 31 32 33 static FILE *stream; /* Output goes here */ 34 static struct disassemble_info *info; 35 static void print_addr (bfd_vma); 36 static void ctrl (bfd_vma, unsigned long, unsigned long); 37 static void cobr (bfd_vma, unsigned long, unsigned long); 38 static void reg (unsigned long); 39 static int mem (bfd_vma, unsigned long, unsigned long, int); 40 static void ea (bfd_vma, int, const char *, const char *, int, unsigned int); 41 static void dstop (int, int, int); 42 static void regop (int, int, int, int); 43 static void invalid (int); 44 static int pinsn (bfd_vma, unsigned long, unsigned long); 45 static void put_abs (unsigned long, unsigned long); 46 47 48 /* Print the i960 instruction at address 'memaddr' in debugged memory, 49 on INFO->STREAM. Returns length of the instruction, in bytes. */ 50 51 int 52 print_insn_i960 (bfd_vma memaddr, struct disassemble_info *info_arg) 53 { 54 unsigned int word1, word2 = 0xdeadbeef; 55 bfd_byte buffer[8]; 56 int status; 57 58 info = info_arg; 59 stream = info->stream; 60 61 /* Read word1. Only read word2 if the instruction 62 needs it, to prevent reading past the end of a section. */ 63 64 status = (*info->read_memory_func) (memaddr, (bfd_byte *) buffer, 4, info); 65 if (status != 0) 66 { 67 (*info->memory_error_func) (status, memaddr, info); 68 return -1; 69 } 70 71 word1 = bfd_getl32 (buffer); 72 73 /* Divide instruction set into classes based on high 4 bits of opcode. */ 74 switch ( (word1 >> 28) & 0xf ) 75 { 76 default: 77 break; 78 case 0x8: 79 case 0x9: 80 case 0xa: 81 case 0xb: 82 case 0xc: 83 /* Read word2. */ 84 status = (*info->read_memory_func) 85 (memaddr + 4, (bfd_byte *) (buffer + 4), 4, info); 86 if (status != 0) 87 { 88 (*info->memory_error_func) (status, memaddr, info); 89 return -1; 90 } 91 word2 = bfd_getl32 (buffer + 4); 92 break; 93 } 94 95 return pinsn( memaddr, word1, word2 ); 96 } 97 98 #define IN_GDB 100 101 /***************************************************************************** 102 * All code below this point should be identical with that of 103 * the disassembler in gdmp960. 104 105 A noble sentiment, but at least in cosmetic ways (info->fprintf_func), it 106 just ain't so. -kingdon, 31 Mar 93 107 *****************************************************************************/ 108 109 struct tabent { 110 char *name; 111 short numops; 112 }; 113 114 struct sparse_tabent { 115 int opcode; 116 char *name; 117 short numops; 118 }; 119 120 static int 121 pinsn (bfd_vma memaddr, unsigned long word1, unsigned long word2) 122 { 123 int instr_len; 124 125 instr_len = 4; 126 put_abs (word1, word2); 127 128 /* Divide instruction set into classes based on high 4 bits of opcode. */ 129 switch ((word1 >> 28) & 0xf) 130 { 131 case 0x0: 132 case 0x1: 133 ctrl (memaddr, word1, word2); 134 break; 135 case 0x2: 136 case 0x3: 137 cobr (memaddr, word1, word2); 138 break; 139 case 0x5: 140 case 0x6: 141 case 0x7: 142 reg (word1); 143 break; 144 case 0x8: 145 case 0x9: 146 case 0xa: 147 case 0xb: 148 case 0xc: 149 instr_len = mem (memaddr, word1, word2, 0); 150 break; 151 default: 152 /* Invalid instruction, print as data word. */ 153 invalid (word1); 154 break; 155 } 156 return instr_len; 157 } 158 159 /* CTRL format.. */ 160 161 static void 162 ctrl (bfd_vma memaddr, unsigned long word1, unsigned long word2 ATTRIBUTE_UNUSED) 163 { 164 int i; 165 static const struct tabent ctrl_tab[] = { 166 { NULL, 0, }, /* 0x00 */ 167 { NULL, 0, }, /* 0x01 */ 168 { NULL, 0, }, /* 0x02 */ 169 { NULL, 0, }, /* 0x03 */ 170 { NULL, 0, }, /* 0x04 */ 171 { NULL, 0, }, /* 0x05 */ 172 { NULL, 0, }, /* 0x06 */ 173 { NULL, 0, }, /* 0x07 */ 174 { "b", 1, }, /* 0x08 */ 175 { "call", 1, }, /* 0x09 */ 176 { "ret", 0, }, /* 0x0a */ 177 { "bal", 1, }, /* 0x0b */ 178 { NULL, 0, }, /* 0x0c */ 179 { NULL, 0, }, /* 0x0d */ 180 { NULL, 0, }, /* 0x0e */ 181 { NULL, 0, }, /* 0x0f */ 182 { "bno", 1, }, /* 0x10 */ 183 { "bg", 1, }, /* 0x11 */ 184 { "be", 1, }, /* 0x12 */ 185 { "bge", 1, }, /* 0x13 */ 186 { "bl", 1, }, /* 0x14 */ 187 { "bne", 1, }, /* 0x15 */ 188 { "ble", 1, }, /* 0x16 */ 189 { "bo", 1, }, /* 0x17 */ 190 { "faultno", 0, }, /* 0x18 */ 191 { "faultg", 0, }, /* 0x19 */ 192 { "faulte", 0, }, /* 0x1a */ 193 { "faultge", 0, }, /* 0x1b */ 194 { "faultl", 0, }, /* 0x1c */ 195 { "faultne", 0, }, /* 0x1d */ 196 { "faultle", 0, }, /* 0x1e */ 197 { "faulto", 0, }, /* 0x1f */ 198 }; 199 200 i = (word1 >> 24) & 0xff; 201 if ((ctrl_tab[i].name == NULL) || ((word1 & 1) != 0)) 202 { 203 invalid (word1); 204 return; 205 } 206 207 (*info->fprintf_func) (stream, "%s", ctrl_tab[i].name); 208 if (word1 & 2) 209 /* Predicts branch not taken. */ 210 (*info->fprintf_func) (stream, ".f"); 211 212 if (ctrl_tab[i].numops == 1) 213 { 214 /* Extract displacement and convert to address. */ 215 word1 &= 0x00ffffff; 216 217 if (word1 & 0x00800000) 218 { 219 /* Sign bit is set. */ 220 word1 |= (-1 & ~0xffffff); /* Sign extend. */ 221 } 222 223 (*info->fprintf_func) (stream, "\t"); 224 print_addr (word1 + memaddr); 225 } 226 } 227 228 /* COBR format. */ 229 230 static void 231 cobr (bfd_vma memaddr, unsigned long word1, unsigned long word2 ATTRIBUTE_UNUSED) 232 { 233 int src1; 234 int src2; 235 int i; 236 237 static const struct tabent cobr_tab[] = { 238 { "testno", 1, }, /* 0x20 */ 239 { "testg", 1, }, /* 0x21 */ 240 { "teste", 1, }, /* 0x22 */ 241 { "testge", 1, }, /* 0x23 */ 242 { "testl", 1, }, /* 0x24 */ 243 { "testne", 1, }, /* 0x25 */ 244 { "testle", 1, }, /* 0x26 */ 245 { "testo", 1, }, /* 0x27 */ 246 { NULL, 0, }, /* 0x28 */ 247 { NULL, 0, }, /* 0x29 */ 248 { NULL, 0, }, /* 0x2a */ 249 { NULL, 0, }, /* 0x2b */ 250 { NULL, 0, }, /* 0x2c */ 251 { NULL, 0, }, /* 0x2d */ 252 { NULL, 0, }, /* 0x2e */ 253 { NULL, 0, }, /* 0x2f */ 254 { "bbc", 3, }, /* 0x30 */ 255 { "cmpobg", 3, }, /* 0x31 */ 256 { "cmpobe", 3, }, /* 0x32 */ 257 { "cmpobge",3, }, /* 0x33 */ 258 { "cmpobl", 3, }, /* 0x34 */ 259 { "cmpobne",3, }, /* 0x35 */ 260 { "cmpoble",3, }, /* 0x36 */ 261 { "bbs", 3, }, /* 0x37 */ 262 { "cmpibno",3, }, /* 0x38 */ 263 { "cmpibg", 3, }, /* 0x39 */ 264 { "cmpibe", 3, }, /* 0x3a */ 265 { "cmpibge",3, }, /* 0x3b */ 266 { "cmpibl", 3, }, /* 0x3c */ 267 { "cmpibne",3, }, /* 0x3d */ 268 { "cmpible",3, }, /* 0x3e */ 269 { "cmpibo", 3, }, /* 0x3f */ 270 }; 271 272 i = ((word1 >> 24) & 0xff) - 0x20; 273 if (cobr_tab[i].name == NULL) 274 { 275 invalid (word1); 276 return; 277 } 278 279 (*info->fprintf_func) (stream, "%s", cobr_tab[i].name); 280 281 /* Predicts branch not taken. */ 282 if (word1 & 2) 283 (*info->fprintf_func) (stream, ".f"); 284 285 (*info->fprintf_func) (stream, "\t"); 286 287 src1 = (word1 >> 19) & 0x1f; 288 src2 = (word1 >> 14) & 0x1f; 289 290 if (word1 & 0x02000) 291 /* M1 is 1 */ 292 (*info->fprintf_func) (stream, "%d", src1); 293 else 294 (*info->fprintf_func) (stream, "%s", reg_names[src1]); 295 296 if (cobr_tab[i].numops > 1) 297 { 298 if (word1 & 1) 299 /* S2 is 1. */ 300 (*info->fprintf_func) (stream, ",sf%d,", src2); 301 else 302 /* S1 is 0. */ 303 (*info->fprintf_func) (stream, ",%s,", reg_names[src2]); 304 305 /* Extract displacement and convert to address. */ 306 word1 &= 0x00001ffc; 307 if (word1 & 0x00001000) 308 /* Negative displacement. */ 309 word1 |= (-1 & ~0x1fff); /* Sign extend. */ 310 311 print_addr (memaddr + word1); 312 } 313 } 314 315 /* MEM format. */ 316 /* Returns instruction length: 4 or 8. */ 317 318 static int 319 mem (bfd_vma memaddr, unsigned long word1, unsigned long word2, int noprint) 320 { 321 int i, j; 322 int len; 323 int mode; 324 int offset; 325 const char *reg1, *reg2, *reg3; 326 327 /* This lookup table is too sparse to make it worth typing in, but not 328 so large as to make a sparse array necessary. We create the table 329 at runtime. */ 330 331 /* NOTE: In this table, the meaning of 'numops' is: 332 1: single operand 333 2: 2 operands, load instruction 334 -2: 2 operands, store instruction. */ 335 static struct tabent *mem_tab; 336 /* Opcodes of 0x8X, 9X, aX, bX, and cX must be in the table. */ 337 #define MEM_MIN 0x80 338 #define MEM_MAX 0xcf 339 #define MEM_SIZ ( * sizeof(struct tabent)) 340 341 static const struct sparse_tabent mem_init[] = { 342 { 0x80, "ldob", 2 }, 343 { 0x82, "stob", -2 }, 344 { 0x84, "bx", 1 }, 345 { 0x85, "balx", 2 }, 346 { 0x86, "callx", 1 }, 347 { 0x88, "ldos", 2 }, 348 { 0x8a, "stos", -2 }, 349 { 0x8c, "lda", 2 }, 350 { 0x90, "ld", 2 }, 351 { 0x92, "st", -2 }, 352 { 0x98, "ldl", 2 }, 353 { 0x9a, "stl", -2 }, 354 { 0xa0, "ldt", 2 }, 355 { 0xa2, "stt", -2 }, 356 { 0xac, "dcinva", 1 }, 357 { 0xb0, "ldq", 2 }, 358 { 0xb2, "stq", -2 }, 359 { 0xc0, "ldib", 2 }, 360 { 0xc2, "stib", -2 }, 361 { 0xc8, "ldis", 2 }, 362 { 0xca, "stis", -2 }, 363 { 0, NULL, 0 } 364 }; 365 static struct tabent mem_tab_buf[MEM_MAX - MEM_MIN + 1]; 366 367 if (mem_tab == NULL) 368 { 369 mem_tab = mem_tab_buf; 370 371 for (i = 0; mem_init[i].opcode != 0; i++) 372 { 373 j = mem_init[i].opcode - MEM_MIN; 374 mem_tab[j].name = mem_init[i].name; 375 mem_tab[j].numops = mem_init[i].numops; 376 } 377 } 378 379 i = ((word1 >> 24) & 0xff) - MEM_MIN; 380 mode = (word1 >> 10) & 0xf; 381 382 if ((mem_tab[i].name != NULL) /* Valid instruction */ 383 && ((mode == 5) || (mode >= 12))) 384 /* With 32-bit displacement. */ 385 len = 8; 386 else 387 len = 4; 388 389 if (noprint) 390 return len; 391 392 if ((mem_tab[i].name == NULL) || (mode == 6)) 393 { 394 invalid (word1); 395 return len; 396 } 397 398 (*info->fprintf_func) (stream, "%s\t", mem_tab[i].name); 399 400 reg1 = reg_names[ (word1 >> 19) & 0x1f ]; /* MEMB only */ 401 reg2 = reg_names[ (word1 >> 14) & 0x1f ]; 402 reg3 = reg_names[ word1 & 0x1f ]; /* MEMB only */ 403 offset = word1 & 0xfff; /* MEMA only */ 404 405 switch (mem_tab[i].numops) 406 { 407 case 2: /* LOAD INSTRUCTION */ 408 if (mode & 4) 409 { /* MEMB FORMAT */ 410 ea (memaddr, mode, reg2, reg3, word1, word2); 411 (*info->fprintf_func) (stream, ",%s", reg1); 412 } 413 else 414 { /* MEMA FORMAT */ 415 (*info->fprintf_func) (stream, "0x%x", (unsigned) offset); 416 417 if (mode & 8) 418 (*info->fprintf_func) (stream, "(%s)", reg2); 419 420 (*info->fprintf_func)(stream, ",%s", reg1); 421 } 422 break; 423 424 case -2: /* STORE INSTRUCTION */ 425 if (mode & 4) 426 { 427 /* MEMB FORMAT */ 428 (*info->fprintf_func) (stream, "%s,", reg1); 429 ea (memaddr, mode, reg2, reg3, word1, word2); 430 } 431 else 432 { 433 /* MEMA FORMAT */ 434 (*info->fprintf_func) (stream, "%s,0x%x", reg1, (unsigned) offset); 435 436 if (mode & 8) 437 (*info->fprintf_func) (stream, "(%s)", reg2); 438 } 439 break; 440 441 case 1: /* BX/CALLX INSTRUCTION */ 442 if (mode & 4) 443 { 444 /* MEMB FORMAT */ 445 ea (memaddr, mode, reg2, reg3, word1, word2); 446 } 447 else 448 { 449 /* MEMA FORMAT */ 450 (*info->fprintf_func) (stream, "0x%x", (unsigned) offset); 451 if (mode & 8) 452 (*info->fprintf_func) (stream, "(%s)", reg2); 453 } 454 break; 455 } 456 457 return len; 458 } 459 460 /* REG format. */ 461 462 static void 463 reg (unsigned long word1) 464 { 465 int i, j; 466 int opcode; 467 int fp; 468 int m1, m2, m3; 469 int s1, s2; 470 int src, src2, dst; 471 char *mnemp; 472 473 /* This lookup table is too sparse to make it worth typing in, but not 474 so large as to make a sparse array necessary. We create the table 475 at runtime. */ 476 477 /* NOTE: In this table, the meaning of 'numops' is: 478 1: single operand, which is NOT a destination. 479 -1: single operand, which IS a destination. 480 2: 2 operands, the 2nd of which is NOT a destination. 481 -2: 2 operands, the 2nd of which IS a destination. 482 3: 3 operands 483 484 If an opcode mnemonic begins with "F", it is a floating-point 485 opcode (the "F" is not printed). */ 486 487 static struct tabent *reg_tab; 488 static const struct sparse_tabent reg_init[] = 489 { 490 #define REG_MIN 0x580 491 { 0x580, "notbit", 3 }, 492 { 0x581, "and", 3 }, 493 { 0x582, "andnot", 3 }, 494 { 0x583, "setbit", 3 }, 495 { 0x584, "notand", 3 }, 496 { 0x586, "xor", 3 }, 497 { 0x587, "or", 3 }, 498 { 0x588, "nor", 3 }, 499 { 0x589, "xnor", 3 }, 500 { 0x58a, "not", -2 }, 501 { 0x58b, "ornot", 3 }, 502 { 0x58c, "clrbit", 3 }, 503 { 0x58d, "notor", 3 }, 504 { 0x58e, "nand", 3 }, 505 { 0x58f, "alterbit", 3 }, 506 { 0x590, "addo", 3 }, 507 { 0x591, "addi", 3 }, 508 { 0x592, "subo", 3 }, 509 { 0x593, "subi", 3 }, 510 { 0x594, "cmpob", 2 }, 511 { 0x595, "cmpib", 2 }, 512 { 0x596, "cmpos", 2 }, 513 { 0x597, "cmpis", 2 }, 514 { 0x598, "shro", 3 }, 515 { 0x59a, "shrdi", 3 }, 516 { 0x59b, "shri", 3 }, 517 { 0x59c, "shlo", 3 }, 518 { 0x59d, "rotate", 3 }, 519 { 0x59e, "shli", 3 }, 520 { 0x5a0, "cmpo", 2 }, 521 { 0x5a1, "cmpi", 2 }, 522 { 0x5a2, "concmpo", 2 }, 523 { 0x5a3, "concmpi", 2 }, 524 { 0x5a4, "cmpinco", 3 }, 525 { 0x5a5, "cmpinci", 3 }, 526 { 0x5a6, "cmpdeco", 3 }, 527 { 0x5a7, "cmpdeci", 3 }, 528 { 0x5ac, "scanbyte", 2 }, 529 { 0x5ad, "bswap", -2 }, 530 { 0x5ae, "chkbit", 2 }, 531 { 0x5b0, "addc", 3 }, 532 { 0x5b2, "subc", 3 }, 533 { 0x5b4, "intdis", 0 }, 534 { 0x5b5, "inten", 0 }, 535 { 0x5cc, "mov", -2 }, 536 { 0x5d8, "eshro", 3 }, 537 { 0x5dc, "movl", -2 }, 538 { 0x5ec, "movt", -2 }, 539 { 0x5fc, "movq", -2 }, 540 { 0x600, "synmov", 2 }, 541 { 0x601, "synmovl", 2 }, 542 { 0x602, "synmovq", 2 }, 543 { 0x603, "cmpstr", 3 }, 544 { 0x604, "movqstr", 3 }, 545 { 0x605, "movstr", 3 }, 546 { 0x610, "atmod", 3 }, 547 { 0x612, "atadd", 3 }, 548 { 0x613, "inspacc", -2 }, 549 { 0x614, "ldphy", -2 }, 550 { 0x615, "synld", -2 }, 551 { 0x617, "fill", 3 }, 552 { 0x630, "sdma", 3 }, 553 { 0x631, "udma", 0 }, 554 { 0x640, "spanbit", -2 }, 555 { 0x641, "scanbit", -2 }, 556 { 0x642, "daddc", 3 }, 557 { 0x643, "dsubc", 3 }, 558 { 0x644, "dmovt", -2 }, 559 { 0x645, "modac", 3 }, 560 { 0x646, "condrec", -2 }, 561 { 0x650, "modify", 3 }, 562 { 0x651, "extract", 3 }, 563 { 0x654, "modtc", 3 }, 564 { 0x655, "modpc", 3 }, 565 { 0x656, "receive", -2 }, 566 { 0x658, "intctl", -2 }, 567 { 0x659, "sysctl", 3 }, 568 { 0x65b, "icctl", 3 }, 569 { 0x65c, "dcctl", 3 }, 570 { 0x65d, "halt", 0 }, 571 { 0x660, "calls", 1 }, 572 { 0x662, "send", 3 }, 573 { 0x663, "sendserv", 1 }, 574 { 0x664, "resumprcs", 1 }, 575 { 0x665, "schedprcs", 1 }, 576 { 0x666, "saveprcs", 0 }, 577 { 0x668, "condwait", 1 }, 578 { 0x669, "wait", 1 }, 579 { 0x66a, "signal", 1 }, 580 { 0x66b, "mark", 0 }, 581 { 0x66c, "fmark", 0 }, 582 { 0x66d, "flushreg", 0 }, 583 { 0x66f, "syncf", 0 }, 584 { 0x670, "emul", 3 }, 585 { 0x671, "ediv", 3 }, 586 { 0x673, "ldtime", -1 }, 587 { 0x674, "Fcvtir", -2 }, 588 { 0x675, "Fcvtilr", -2 }, 589 { 0x676, "Fscalerl", 3 }, 590 { 0x677, "Fscaler", 3 }, 591 { 0x680, "Fatanr", 3 }, 592 { 0x681, "Flogepr", 3 }, 593 { 0x682, "Flogr", 3 }, 594 { 0x683, "Fremr", 3 }, 595 { 0x684, "Fcmpor", 2 }, 596 { 0x685, "Fcmpr", 2 }, 597 { 0x688, "Fsqrtr", -2 }, 598 { 0x689, "Fexpr", -2 }, 599 { 0x68a, "Flogbnr", -2 }, 600 { 0x68b, "Froundr", -2 }, 601 { 0x68c, "Fsinr", -2 }, 602 { 0x68d, "Fcosr", -2 }, 603 { 0x68e, "Ftanr", -2 }, 604 { 0x68f, "Fclassr", 1 }, 605 { 0x690, "Fatanrl", 3 }, 606 { 0x691, "Flogeprl", 3 }, 607 { 0x692, "Flogrl", 3 }, 608 { 0x693, "Fremrl", 3 }, 609 { 0x694, "Fcmporl", 2 }, 610 { 0x695, "Fcmprl", 2 }, 611 { 0x698, "Fsqrtrl", -2 }, 612 { 0x699, "Fexprl", -2 }, 613 { 0x69a, "Flogbnrl", -2 }, 614 { 0x69b, "Froundrl", -2 }, 615 { 0x69c, "Fsinrl", -2 }, 616 { 0x69d, "Fcosrl", -2 }, 617 { 0x69e, "Ftanrl", -2 }, 618 { 0x69f, "Fclassrl", 1 }, 619 { 0x6c0, "Fcvtri", -2 }, 620 { 0x6c1, "Fcvtril", -2 }, 621 { 0x6c2, "Fcvtzri", -2 }, 622 { 0x6c3, "Fcvtzril", -2 }, 623 { 0x6c9, "Fmovr", -2 }, 624 { 0x6d9, "Fmovrl", -2 }, 625 { 0x6e1, "Fmovre", -2 }, 626 { 0x6e2, "Fcpysre", 3 }, 627 { 0x6e3, "Fcpyrsre", 3 }, 628 { 0x701, "mulo", 3 }, 629 { 0x708, "remo", 3 }, 630 { 0x70b, "divo", 3 }, 631 { 0x741, "muli", 3 }, 632 { 0x748, "remi", 3 }, 633 { 0x749, "modi", 3 }, 634 { 0x74b, "divi", 3 }, 635 { 0x780, "addono", 3 }, 636 { 0x781, "addino", 3 }, 637 { 0x782, "subono", 3 }, 638 { 0x783, "subino", 3 }, 639 { 0x784, "selno", 3 }, 640 { 0x78b, "Fdivr", 3 }, 641 { 0x78c, "Fmulr", 3 }, 642 { 0x78d, "Fsubr", 3 }, 643 { 0x78f, "Faddr", 3 }, 644 { 0x790, "addog", 3 }, 645 { 0x791, "addig", 3 }, 646 { 0x792, "subog", 3 }, 647 { 0x793, "subig", 3 }, 648 { 0x794, "selg", 3 }, 649 { 0x79b, "Fdivrl", 3 }, 650 { 0x79c, "Fmulrl", 3 }, 651 { 0x79d, "Fsubrl", 3 }, 652 { 0x79f, "Faddrl", 3 }, 653 { 0x7a0, "addoe", 3 }, 654 { 0x7a1, "addie", 3 }, 655 { 0x7a2, "suboe", 3 }, 656 { 0x7a3, "subie", 3 }, 657 { 0x7a4, "sele", 3 }, 658 { 0x7b0, "addoge", 3 }, 659 { 0x7b1, "addige", 3 }, 660 { 0x7b2, "suboge", 3 }, 661 { 0x7b3, "subige", 3 }, 662 { 0x7b4, "selge", 3 }, 663 { 0x7c0, "addol", 3 }, 664 { 0x7c1, "addil", 3 }, 665 { 0x7c2, "subol", 3 }, 666 { 0x7c3, "subil", 3 }, 667 { 0x7c4, "sell", 3 }, 668 { 0x7d0, "addone", 3 }, 669 { 0x7d1, "addine", 3 }, 670 { 0x7d2, "subone", 3 }, 671 { 0x7d3, "subine", 3 }, 672 { 0x7d4, "selne", 3 }, 673 { 0x7e0, "addole", 3 }, 674 { 0x7e1, "addile", 3 }, 675 { 0x7e2, "subole", 3 }, 676 { 0x7e3, "subile", 3 }, 677 { 0x7e4, "selle", 3 }, 678 { 0x7f0, "addoo", 3 }, 679 { 0x7f1, "addio", 3 }, 680 { 0x7f2, "suboo", 3 }, 681 { 0x7f3, "subio", 3 }, 682 { 0x7f4, "selo", 3 }, 683 #define REG_MAX 0x7f4 684 { 0, NULL, 0 } 685 }; 686 static struct tabent reg_tab_buf[REG_MAX - REG_MIN + 1]; 687 688 if (reg_tab == NULL) 689 { 690 reg_tab = reg_tab_buf; 691 692 for (i = 0; reg_init[i].opcode != 0; i++) 693 { 694 j = reg_init[i].opcode - REG_MIN; 695 reg_tab[j].name = reg_init[i].name; 696 reg_tab[j].numops = reg_init[i].numops; 697 } 698 } 699 700 opcode = ((word1 >> 20) & 0xff0) | ((word1 >> 7) & 0xf); 701 i = opcode - REG_MIN; 702 703 if ((opcode<REG_MIN) || (opcode>REG_MAX) || (reg_tab[i].name==NULL)) 704 { 705 invalid (word1); 706 return; 707 } 708 709 mnemp = reg_tab[i].name; 710 if (*mnemp == 'F') 711 { 712 fp = 1; 713 mnemp++; 714 } 715 else 716 { 717 fp = 0; 718 } 719 720 (*info->fprintf_func) (stream, "%s", mnemp); 721 722 s1 = (word1 >> 5) & 1; 723 s2 = (word1 >> 6) & 1; 724 m1 = (word1 >> 11) & 1; 725 m2 = (word1 >> 12) & 1; 726 m3 = (word1 >> 13) & 1; 727 src = word1 & 0x1f; 728 src2 = (word1 >> 14) & 0x1f; 729 dst = (word1 >> 19) & 0x1f; 730 731 if (reg_tab[i].numops != 0) 732 { 733 (*info->fprintf_func) (stream, "\t"); 734 735 switch (reg_tab[i].numops) 736 { 737 case 1: 738 regop (m1, s1, src, fp); 739 break; 740 case -1: 741 dstop (m3, dst, fp); 742 break; 743 case 2: 744 regop (m1, s1, src, fp); 745 (*info->fprintf_func) (stream, ","); 746 regop (m2, s2, src2, fp); 747 break; 748 case -2: 749 regop (m1, s1, src, fp); 750 (*info->fprintf_func) (stream, ","); 751 dstop (m3, dst, fp); 752 break; 753 case 3: 754 regop (m1, s1, src, fp); 755 (*info->fprintf_func) (stream, ","); 756 regop (m2, s2, src2, fp); 757 (*info->fprintf_func) (stream, ","); 758 dstop (m3, dst, fp); 759 break; 760 } 761 } 762 } 763 764 /* Print out effective address for memb instructions. */ 765 766 static void 767 ea (bfd_vma memaddr, int mode, const char *reg2, const char *reg3, int word1, 768 unsigned int word2) 769 { 770 int scale; 771 static const int scale_tab[] = { 1, 2, 4, 8, 16 }; 772 773 scale = (word1 >> 7) & 0x07; 774 775 if ((scale > 4) || (((word1 >> 5) & 0x03) != 0)) 776 { 777 invalid (word1); 778 return; 779 } 780 scale = scale_tab[scale]; 781 782 switch (mode) 783 { 784 case 4: /* (reg) */ 785 (*info->fprintf_func)( stream, "(%s)", reg2 ); 786 break; 787 case 5: /* displ+8(ip) */ 788 print_addr (word2 + 8 + memaddr); 789 break; 790 case 7: /* (reg)[index*scale] */ 791 if (scale == 1) 792 (*info->fprintf_func) (stream, "(%s)[%s]", reg2, reg3); 793 else 794 (*info->fprintf_func) (stream, "(%s)[%s*%d]", reg2, reg3, scale); 795 break; 796 case 12: /* displacement */ 797 print_addr ((bfd_vma) word2); 798 break; 799 case 13: /* displ(reg) */ 800 print_addr ((bfd_vma) word2); 801 (*info->fprintf_func) (stream, "(%s)", reg2); 802 break; 803 case 14: /* displ[index*scale] */ 804 print_addr ((bfd_vma) word2); 805 if (scale == 1) 806 (*info->fprintf_func) (stream, "[%s]", reg3); 807 else 808 (*info->fprintf_func) (stream, "[%s*%d]", reg3, scale); 809 break; 810 case 15: /* displ(reg)[index*scale] */ 811 print_addr ((bfd_vma) word2); 812 if (scale == 1) 813 (*info->fprintf_func) (stream, "(%s)[%s]", reg2, reg3); 814 else 815 (*info->fprintf_func) (stream, "(%s)[%s*%d]", reg2, reg3, scale); 816 break; 817 default: 818 invalid (word1); 819 return; 820 } 821 } 822 823 824 /* Register Instruction Operand. */ 825 826 static void 827 regop (int mode, int spec, int fp_reg, int fp) 828 { 829 if (fp) 830 { 831 /* Floating point instruction. */ 832 if (mode == 1) 833 { 834 /* FP operand. */ 835 switch (fp_reg) 836 { 837 case 0: (*info->fprintf_func) (stream, "fp0"); 838 break; 839 case 1: (*info->fprintf_func) (stream, "fp1"); 840 break; 841 case 2: (*info->fprintf_func) (stream, "fp2"); 842 break; 843 case 3: (*info->fprintf_func) (stream, "fp3"); 844 break; 845 case 16: (*info->fprintf_func) (stream, "0f0.0"); 846 break; 847 case 22: (*info->fprintf_func) (stream, "0f1.0"); 848 break; 849 default: (*info->fprintf_func) (stream, "?"); 850 break; 851 } 852 } 853 else 854 { 855 /* Non-FP register. */ 856 (*info->fprintf_func) (stream, "%s", reg_names[fp_reg]); 857 } 858 } 859 else 860 { 861 /* Not floating point. */ 862 if (mode == 1) 863 { 864 /* Literal. */ 865 (*info->fprintf_func) (stream, "%d", fp_reg); 866 } 867 else 868 { 869 /* Register. */ 870 if (spec == 0) 871 (*info->fprintf_func) (stream, "%s", reg_names[fp_reg]); 872 else 873 (*info->fprintf_func) (stream, "sf%d", fp_reg); 874 } 875 } 876 } 877 878 /* Register Instruction Destination Operand. */ 879 880 static void 881 dstop (int mode, int dest_reg, int fp) 882 { 883 /* 'dst' operand can't be a literal. On non-FP instructions, register 884 mode is assumed and "m3" acts as if were "s3"; on FP-instructions, 885 sf registers are not allowed so m3 acts normally. */ 886 if (fp) 887 regop (mode, 0, dest_reg, fp); 888 else 889 regop (0, mode, dest_reg, fp); 890 } 891 892 static void 893 invalid (int word1) 894 { 895 (*info->fprintf_func) (stream, ".word\t0x%08x", (unsigned) word1); 896 } 897 898 static void 899 print_addr (bfd_vma a) 900 { 901 (*info->print_address_func) (a, info); 902 } 903 904 static void 905 put_abs (unsigned long word1 ATTRIBUTE_UNUSED, 906 unsigned long word2 ATTRIBUTE_UNUSED) 907 { 908 #ifdef IN_GDB 909 return; 910 #else 911 int len; 912 913 switch ((word1 >> 28) & 0xf) 914 { 915 case 0x8: 916 case 0x9: 917 case 0xa: 918 case 0xb: 919 case 0xc: 920 /* MEM format instruction. */ 921 len = mem (0, word1, word2, 1); 922 break; 923 default: 924 len = 4; 925 break; 926 } 927 928 if (len == 8) 929 (*info->fprintf_func) (stream, "%08x %08x\t", word1, word2); 930 else 931 (*info->fprintf_func) (stream, "%08x \t", word1); 932 #endif 933 } 934
