1 /* Disassembly routines for TMS320C30 architecture 2 Copyright (C) 1998-2024 Free Software Foundation, Inc. 3 Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au) 4 5 This file is part of the GNU opcodes library. 6 7 This library is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 It is distributed in the hope that it will be useful, but WITHOUT 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 15 License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this file; see the file COPYING. If not, write to the 19 Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, 20 MA 02110-1301, USA. */ 21 22 #include "sysdep.h" 23 #include <errno.h> 24 #include <math.h> 25 #include "disassemble.h" 26 #include "opcode/tic30.h" 27 28 #define NORMAL_INSN 1 29 #define PARALLEL_INSN 2 30 31 /* Gets the type of instruction based on the top 2 or 3 bits of the 32 instruction word. */ 33 #define GET_TYPE(insn) (insn & 0x80000000 ? insn & 0xC0000000 : insn & 0xE0000000) 34 35 /* Instruction types. */ 36 #define TWO_OPERAND_1 0x00000000 37 #define TWO_OPERAND_2 0x40000000 38 #define THREE_OPERAND 0x20000000 39 #define PAR_STORE 0xC0000000 40 #define MUL_ADDS 0x80000000 41 #define BRANCHES 0x60000000 42 43 /* Specific instruction id bits. */ 44 #define NORMAL_IDEN 0x1F800000 45 #define PAR_STORE_IDEN 0x3E000000 46 #define MUL_ADD_IDEN 0x2C000000 47 #define BR_IMM_IDEN 0x1F000000 48 #define BR_COND_IDEN 0x1C3F0000 49 50 /* Addressing modes. */ 51 #define AM_REGISTER 0x00000000 52 #define AM_DIRECT 0x00200000 53 #define AM_INDIRECT 0x00400000 54 #define AM_IMM 0x00600000 55 56 #define P_FIELD 0x03000000 57 58 #define REG_AR0 0x08 59 #define LDP_INSN 0x08700000 60 61 /* TMS320C30 program counter for current instruction. */ 62 static unsigned int _pc; 63 64 struct instruction 65 { 66 int type; 67 insn_template *tm; 68 partemplate *ptm; 69 }; 70 71 static int 72 get_tic30_instruction (unsigned long insn_word, struct instruction *insn) 73 { 74 switch (GET_TYPE (insn_word)) 75 { 76 case TWO_OPERAND_1: 77 case TWO_OPERAND_2: 78 case THREE_OPERAND: 79 insn->type = NORMAL_INSN; 80 { 81 insn_template *current_optab = (insn_template *) tic30_optab; 82 83 for (; current_optab < tic30_optab_end; current_optab++) 84 { 85 if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word)) 86 { 87 if (current_optab->operands == 0) 88 { 89 if (current_optab->base_opcode == insn_word) 90 { 91 insn->tm = current_optab; 92 break; 93 } 94 } 95 else if ((current_optab->base_opcode & NORMAL_IDEN) == (insn_word & NORMAL_IDEN)) 96 { 97 insn->tm = current_optab; 98 break; 99 } 100 } 101 } 102 } 103 break; 104 105 case PAR_STORE: 106 insn->type = PARALLEL_INSN; 107 { 108 partemplate *current_optab = (partemplate *) tic30_paroptab; 109 110 for (; current_optab < tic30_paroptab_end; current_optab++) 111 { 112 if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word)) 113 { 114 if ((current_optab->base_opcode & PAR_STORE_IDEN) 115 == (insn_word & PAR_STORE_IDEN)) 116 { 117 insn->ptm = current_optab; 118 break; 119 } 120 } 121 } 122 } 123 break; 124 125 case MUL_ADDS: 126 insn->type = PARALLEL_INSN; 127 { 128 partemplate *current_optab = (partemplate *) tic30_paroptab; 129 130 for (; current_optab < tic30_paroptab_end; current_optab++) 131 { 132 if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word)) 133 { 134 if ((current_optab->base_opcode & MUL_ADD_IDEN) 135 == (insn_word & MUL_ADD_IDEN)) 136 { 137 insn->ptm = current_optab; 138 break; 139 } 140 } 141 } 142 } 143 break; 144 145 case BRANCHES: 146 insn->type = NORMAL_INSN; 147 { 148 insn_template *current_optab = (insn_template *) tic30_optab; 149 150 for (; current_optab < tic30_optab_end; current_optab++) 151 { 152 if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word)) 153 { 154 if (current_optab->operand_types[0] & Imm24) 155 { 156 if ((current_optab->base_opcode & BR_IMM_IDEN) 157 == (insn_word & BR_IMM_IDEN)) 158 { 159 insn->tm = current_optab; 160 break; 161 } 162 } 163 else if (current_optab->operands > 0) 164 { 165 if ((current_optab->base_opcode & BR_COND_IDEN) 166 == (insn_word & BR_COND_IDEN)) 167 { 168 insn->tm = current_optab; 169 break; 170 } 171 } 172 else 173 { 174 if ((current_optab->base_opcode & (BR_COND_IDEN | 0x00800000)) 175 == (insn_word & (BR_COND_IDEN | 0x00800000))) 176 { 177 insn->tm = current_optab; 178 break; 179 } 180 } 181 } 182 } 183 } 184 break; 185 default: 186 return 0; 187 } 188 return 1; 189 } 190 191 #define OPERAND_BUFFER_LEN 15 192 193 static int 194 get_register_operand (unsigned char fragment, char *buffer) 195 { 196 const reg *current_reg = tic30_regtab; 197 198 if (buffer == NULL) 199 return 0; 200 for (; current_reg < tic30_regtab_end; current_reg++) 201 { 202 if ((fragment & 0x1F) == current_reg->opcode) 203 { 204 strncpy (buffer, current_reg->name, OPERAND_BUFFER_LEN - 1); 205 buffer[OPERAND_BUFFER_LEN - 1] = 0; 206 return 1; 207 } 208 } 209 return 0; 210 } 211 212 static int 213 get_indirect_operand (unsigned short fragment, 214 int size, 215 char *buffer) 216 { 217 unsigned char mod; 218 unsigned arnum; 219 unsigned char disp; 220 221 if (buffer == NULL) 222 return 0; 223 /* Determine which bits identify the sections of the indirect 224 operand based on the size in bytes. */ 225 switch (size) 226 { 227 case 1: 228 mod = (fragment & 0x00F8) >> 3; 229 arnum = (fragment & 0x0007); 230 disp = 0; 231 break; 232 case 2: 233 mod = (fragment & 0xF800) >> 11; 234 arnum = (fragment & 0x0700) >> 8; 235 disp = (fragment & 0x00FF); 236 break; 237 default: 238 return 0; 239 } 240 { 241 const ind_addr_type *current_ind = tic30_indaddr_tab; 242 243 for (; current_ind < tic30_indaddrtab_end; current_ind++) 244 { 245 if (current_ind->modfield == mod) 246 { 247 if (current_ind->displacement == IMPLIED_DISP && size == 2) 248 continue; 249 250 else 251 { 252 size_t i, len; 253 int bufcnt; 254 255 len = strlen (current_ind->syntax); 256 257 for (i = 0, bufcnt = 0; i < len; i++, bufcnt++) 258 { 259 buffer[bufcnt] = current_ind->syntax[i]; 260 261 if (bufcnt > 0 262 && bufcnt < OPERAND_BUFFER_LEN - 1 263 && buffer[bufcnt - 1] == 'a' 264 && buffer[bufcnt] == 'r') 265 buffer[++bufcnt] = arnum + '0'; 266 267 if (bufcnt < OPERAND_BUFFER_LEN - 1 268 && buffer[bufcnt] == '(' 269 && current_ind->displacement == DISP_REQUIRED) 270 { 271 snprintf (buffer + (bufcnt + 1), 272 OPERAND_BUFFER_LEN - (bufcnt + 1), 273 "%u", disp); 274 bufcnt += strlen (buffer + (bufcnt + 1)); 275 } 276 } 277 buffer[bufcnt + 1] = '\0'; 278 break; 279 } 280 } 281 } 282 } 283 return 1; 284 } 285 286 static int 287 cnvt_tmsfloat_ieee (unsigned long tmsfloat, int size, float *ieeefloat) 288 { 289 unsigned long exponent, sign, mant; 290 union 291 { 292 unsigned long l; 293 float f; 294 } val; 295 296 if (size == 2) 297 { 298 if ((tmsfloat & 0x0000F000) == 0x00008000) 299 tmsfloat = 0x80000000; 300 else 301 { 302 tmsfloat <<= 16; 303 tmsfloat = (long) tmsfloat >> 4; 304 } 305 } 306 exponent = tmsfloat & 0xFF000000; 307 if (exponent == 0x80000000) 308 { 309 *ieeefloat = 0.0; 310 return 1; 311 } 312 exponent += 0x7F000000; 313 sign = (tmsfloat & 0x00800000) << 8; 314 mant = tmsfloat & 0x007FFFFF; 315 if (exponent == 0xFF000000) 316 { 317 if (mant == 0) 318 *ieeefloat = ERANGE; 319 #ifdef HUGE_VALF 320 if (sign == 0) 321 *ieeefloat = HUGE_VALF; 322 else 323 *ieeefloat = -HUGE_VALF; 324 #else 325 if (sign == 0) 326 *ieeefloat = 1.0 / 0.0; 327 else 328 *ieeefloat = -1.0 / 0.0; 329 #endif 330 return 1; 331 } 332 exponent >>= 1; 333 if (sign) 334 { 335 mant = (~mant) & 0x007FFFFF; 336 mant += 1; 337 exponent += mant & 0x00800000; 338 exponent &= 0x7F800000; 339 mant &= 0x007FFFFF; 340 } 341 if (tmsfloat == 0x80000000) 342 sign = mant = exponent = 0; 343 tmsfloat = sign | exponent | mant; 344 val.l = tmsfloat; 345 *ieeefloat = val.f; 346 return 1; 347 } 348 349 static int 350 print_two_operand (disassemble_info *info, 351 unsigned long insn_word, 352 struct instruction *insn) 353 { 354 char name[12]; 355 char operand[2][OPERAND_BUFFER_LEN] = 356 { 357 {0}, 358 {0} 359 }; 360 float f_number; 361 362 if (insn->tm == NULL) 363 return 0; 364 strcpy (name, insn->tm->name); 365 if (insn->tm->opcode_modifier == AddressMode) 366 { 367 int src_op, dest_op; 368 /* Determine whether instruction is a store or a normal instruction. */ 369 if ((insn->tm->operand_types[1] & (Direct | Indirect)) 370 == (Direct | Indirect)) 371 { 372 src_op = 1; 373 dest_op = 0; 374 } 375 else 376 { 377 src_op = 0; 378 dest_op = 1; 379 } 380 /* Get the destination register. */ 381 if (insn->tm->operands == 2) 382 get_register_operand ((insn_word & 0x001F0000) >> 16, operand[dest_op]); 383 /* Get the source operand based on addressing mode. */ 384 switch (insn_word & AddressMode) 385 { 386 case AM_REGISTER: 387 /* Check for the NOP instruction before getting the operand. */ 388 if ((insn->tm->operand_types[0] & NotReq) == 0) 389 get_register_operand ((insn_word & 0x0000001F), operand[src_op]); 390 break; 391 case AM_DIRECT: 392 sprintf (operand[src_op], "@0x%lX", (insn_word & 0x0000FFFF)); 393 break; 394 case AM_INDIRECT: 395 get_indirect_operand ((insn_word & 0x0000FFFF), 2, operand[src_op]); 396 break; 397 case AM_IMM: 398 /* Get the value of the immediate operand based on variable type. */ 399 switch (insn->tm->imm_arg_type) 400 { 401 case Imm_Float: 402 cnvt_tmsfloat_ieee ((insn_word & 0x0000FFFF), 2, &f_number); 403 sprintf (operand[src_op], "%2.2f", f_number); 404 break; 405 case Imm_SInt: 406 sprintf (operand[src_op], "%d", (short) (insn_word & 0x0000FFFF)); 407 break; 408 case Imm_UInt: 409 sprintf (operand[src_op], "%lu", (insn_word & 0x0000FFFF)); 410 break; 411 default: 412 return 0; 413 } 414 /* Handle special case for LDP instruction. */ 415 if ((insn_word & 0xFFFFFF00) == LDP_INSN) 416 { 417 strcpy (name, "ldp"); 418 sprintf (operand[0], "0x%06lX", (insn_word & 0x000000FF) << 16); 419 operand[1][0] = '\0'; 420 } 421 } 422 } 423 /* Handle case for stack and rotate instructions. */ 424 else if (insn->tm->operands == 1) 425 { 426 if (insn->tm->opcode_modifier == StackOp) 427 get_register_operand ((insn_word & 0x001F0000) >> 16, operand[0]); 428 } 429 /* Output instruction to stream. */ 430 info->fprintf_func (info->stream, " %s %s%c%s", name, 431 operand[0][0] ? operand[0] : "", 432 operand[1][0] ? ',' : ' ', 433 operand[1][0] ? operand[1] : ""); 434 return 1; 435 } 436 437 static int 438 print_three_operand (disassemble_info *info, 439 unsigned long insn_word, 440 struct instruction *insn) 441 { 442 char operand[3][OPERAND_BUFFER_LEN] = 443 { 444 {0}, 445 {0}, 446 {0} 447 }; 448 449 if (insn->tm == NULL) 450 return 0; 451 switch (insn_word & AddressMode) 452 { 453 case AM_REGISTER: 454 get_register_operand ((insn_word & 0x000000FF), operand[0]); 455 get_register_operand ((insn_word & 0x0000FF00) >> 8, operand[1]); 456 break; 457 case AM_DIRECT: 458 get_register_operand ((insn_word & 0x000000FF), operand[0]); 459 get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1]); 460 break; 461 case AM_INDIRECT: 462 get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0]); 463 get_register_operand ((insn_word & 0x0000FF00) >> 8, operand[1]); 464 break; 465 case AM_IMM: 466 get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0]); 467 get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1]); 468 break; 469 default: 470 return 0; 471 } 472 if (insn->tm->operands == 3) 473 get_register_operand ((insn_word & 0x001F0000) >> 16, operand[2]); 474 info->fprintf_func (info->stream, " %s %s,%s%c%s", insn->tm->name, 475 operand[0], operand[1], 476 operand[2][0] ? ',' : ' ', 477 operand[2][0] ? operand[2] : ""); 478 return 1; 479 } 480 481 static int 482 print_par_insn (disassemble_info *info, 483 unsigned long insn_word, 484 struct instruction *insn) 485 { 486 size_t i, len; 487 char *name1, *name2; 488 char operand[2][3][OPERAND_BUFFER_LEN] = 489 { 490 { 491 {0}, 492 {0}, 493 {0} 494 }, 495 { 496 {0}, 497 {0}, 498 {0} 499 } 500 }; 501 502 if (insn->ptm == NULL) 503 return 0; 504 /* Parse out the names of each of the parallel instructions from the 505 q_insn1_insn2 format. */ 506 name1 = (char *) strdup (insn->ptm->name + 2); 507 name2 = ""; 508 len = strlen (name1); 509 for (i = 0; i < len; i++) 510 { 511 if (name1[i] == '_') 512 { 513 name2 = &name1[i + 1]; 514 name1[i] = '\0'; 515 break; 516 } 517 } 518 /* Get the operands of the instruction based on the operand order. */ 519 switch (insn->ptm->oporder) 520 { 521 case OO_4op1: 522 get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]); 523 get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]); 524 get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]); 525 get_register_operand ((insn_word >> 22) & 0x07, operand[0][1]); 526 break; 527 case OO_4op2: 528 get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]); 529 get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][0]); 530 get_register_operand ((insn_word >> 19) & 0x07, operand[1][1]); 531 get_register_operand ((insn_word >> 22) & 0x07, operand[0][1]); 532 break; 533 case OO_4op3: 534 get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]); 535 get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]); 536 get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]); 537 get_register_operand ((insn_word >> 22) & 0x07, operand[0][0]); 538 break; 539 case OO_5op1: 540 get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]); 541 get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]); 542 get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]); 543 get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]); 544 get_register_operand ((insn_word >> 22) & 0x07, operand[0][2]); 545 break; 546 case OO_5op2: 547 get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]); 548 get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]); 549 get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]); 550 get_register_operand ((insn_word >> 19) & 0x07, operand[0][0]); 551 get_register_operand ((insn_word >> 22) & 0x07, operand[0][2]); 552 break; 553 case OO_PField: 554 if (insn_word & 0x00800000) 555 get_register_operand (0x01, operand[0][2]); 556 else 557 get_register_operand (0x00, operand[0][2]); 558 if (insn_word & 0x00400000) 559 get_register_operand (0x03, operand[1][2]); 560 else 561 get_register_operand (0x02, operand[1][2]); 562 switch (insn_word & P_FIELD) 563 { 564 case 0x00000000: 565 get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]); 566 get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]); 567 get_register_operand ((insn_word >> 16) & 0x07, operand[1][1]); 568 get_register_operand ((insn_word >> 19) & 0x07, operand[1][0]); 569 break; 570 case 0x01000000: 571 get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][0]); 572 get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]); 573 get_register_operand ((insn_word >> 16) & 0x07, operand[1][1]); 574 get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]); 575 break; 576 case 0x02000000: 577 get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][1]); 578 get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][0]); 579 get_register_operand ((insn_word >> 16) & 0x07, operand[0][1]); 580 get_register_operand ((insn_word >> 19) & 0x07, operand[0][0]); 581 break; 582 case 0x03000000: 583 get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][1]); 584 get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]); 585 get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]); 586 get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]); 587 break; 588 } 589 break; 590 default: 591 return 0; 592 } 593 info->fprintf_func (info->stream, " %s %s,%s%c%s", name1, 594 operand[0][0], operand[0][1], 595 operand[0][2][0] ? ',' : ' ', 596 operand[0][2][0] ? operand[0][2] : ""); 597 info->fprintf_func (info->stream, "\n\t\t\t|| %s %s,%s%c%s", name2, 598 operand[1][0], operand[1][1], 599 operand[1][2][0] ? ',' : ' ', 600 operand[1][2][0] ? operand[1][2] : ""); 601 free (name1); 602 return 1; 603 } 604 605 static int 606 print_branch (disassemble_info *info, 607 unsigned long insn_word, 608 struct instruction *insn) 609 { 610 char operand[2][OPERAND_BUFFER_LEN] = 611 { 612 {0}, 613 {0} 614 }; 615 unsigned long address; 616 int print_label = 0; 617 618 if (insn->tm == NULL) 619 return 0; 620 /* Get the operands for 24-bit immediate jumps. */ 621 if (insn->tm->operand_types[0] & Imm24) 622 { 623 address = insn_word & 0x00FFFFFF; 624 sprintf (operand[0], "0x%lX", address); 625 print_label = 1; 626 } 627 /* Get the operand for the trap instruction. */ 628 else if (insn->tm->operand_types[0] & IVector) 629 { 630 address = insn_word & 0x0000001F; 631 sprintf (operand[0], "0x%lX", address); 632 } 633 else 634 { 635 address = insn_word & 0x0000FFFF; 636 /* Get the operands for the DB instructions. */ 637 if (insn->tm->operands == 2) 638 { 639 get_register_operand (((insn_word & 0x01C00000) >> 22) + REG_AR0, operand[0]); 640 if (insn_word & PCRel) 641 { 642 sprintf (operand[1], "%d", (short) address); 643 print_label = 1; 644 } 645 else 646 get_register_operand (insn_word & 0x0000001F, operand[1]); 647 } 648 /* Get the operands for the standard branches. */ 649 else if (insn->tm->operands == 1) 650 { 651 if (insn_word & PCRel) 652 { 653 address = (short) address; 654 sprintf (operand[0], "%ld", address); 655 print_label = 1; 656 } 657 else 658 get_register_operand (insn_word & 0x0000001F, operand[0]); 659 } 660 } 661 info->fprintf_func (info->stream, " %s %s%c%s", insn->tm->name, 662 operand[0][0] ? operand[0] : "", 663 operand[1][0] ? ',' : ' ', 664 operand[1][0] ? operand[1] : ""); 665 /* Print destination of branch in relation to current symbol. */ 666 if (print_label && info->symbols) 667 { 668 asymbol *sym = *info->symbols; 669 670 if ((insn->tm->opcode_modifier == PCRel) && (insn_word & PCRel)) 671 { 672 address = (_pc + 1 + (short) address) - ((sym->section->vma + sym->value) / 4); 673 /* Check for delayed instruction, if so adjust destination. */ 674 if (insn_word & 0x00200000) 675 address += 2; 676 } 677 else 678 { 679 address -= ((sym->section->vma + sym->value) / 4); 680 } 681 if (address == 0) 682 info->fprintf_func (info->stream, " <%s>", sym->name); 683 else 684 info->fprintf_func (info->stream, " <%s %c %lu>", sym->name, 685 ((short) address < 0) ? '-' : '+', 686 address); 687 } 688 return 1; 689 } 690 691 int 692 print_insn_tic30 (bfd_vma pc, disassemble_info *info) 693 { 694 unsigned long insn_word; 695 struct instruction insn = { 0, NULL, NULL }; 696 bfd_vma bufaddr = pc - info->buffer_vma; 697 698 if (bufaddr + 3 >= info->buffer_length) 699 return -1; 700 701 /* Obtain the current instruction word from the buffer. */ 702 insn_word = (((unsigned) *(info->buffer + bufaddr) << 24) 703 | (*(info->buffer + bufaddr + 1) << 16) 704 | (*(info->buffer + bufaddr + 2) << 8) 705 | *(info->buffer + bufaddr + 3)); 706 _pc = pc / 4; 707 /* Get the instruction referred to by the current instruction word 708 and print it out based on its type. */ 709 if (!get_tic30_instruction (insn_word, &insn)) 710 return -1; 711 switch (GET_TYPE (insn_word)) 712 { 713 case TWO_OPERAND_1: 714 case TWO_OPERAND_2: 715 if (!print_two_operand (info, insn_word, &insn)) 716 return -1; 717 break; 718 case THREE_OPERAND: 719 if (!print_three_operand (info, insn_word, &insn)) 720 return -1; 721 break; 722 case PAR_STORE: 723 case MUL_ADDS: 724 if (!print_par_insn (info, insn_word, &insn)) 725 return -1; 726 break; 727 case BRANCHES: 728 if (!print_branch (info, insn_word, &insn)) 729 return -1; 730 break; 731 } 732 return 4; 733 } 734