1/* Instruction building/extraction support for ip2k. -*- C -*- 2 3 THIS FILE IS MACHINE GENERATED WITH CGEN: Cpu tools GENerator. 4 - the resultant file is machine generated, cgen-ibld.in isn't 5 6 Copyright (C) 1996-2017 Free Software Foundation, Inc. 7 8 This file is part of libopcodes. 9 10 This library 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, or (at your option) 13 any later version. 14 15 It is distributed in the hope that it will be useful, but WITHOUT 16 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 17 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 18 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 Foundation, Inc., 22 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 23 24/* ??? Eventually more and more of this stuff can go to cpu-independent files. 25 Keep that in mind. */ 26 27#include "sysdep.h" 28#include <stdio.h> 29#include "ansidecl.h" 30#include "dis-asm.h" 31#include "bfd.h" 32#include "symcat.h" 33#include "ip2k-desc.h" 34#include "ip2k-opc.h" 35#include "cgen/basic-modes.h" 36#include "opintl.h" 37#include "safe-ctype.h" 38 39#undef min 40#define min(a,b) ((a) < (b) ? (a) : (b)) 41#undef max 42#define max(a,b) ((a) > (b) ? (a) : (b)) 43 44/* Used by the ifield rtx function. */ 45#define FLD(f) (fields->f) 46 47static const char * insert_normal 48 (CGEN_CPU_DESC, long, unsigned int, unsigned int, unsigned int, 49 unsigned int, unsigned int, unsigned int, CGEN_INSN_BYTES_PTR); 50static const char * insert_insn_normal 51 (CGEN_CPU_DESC, const CGEN_INSN *, 52 CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma); 53static int extract_normal 54 (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, CGEN_INSN_INT, 55 unsigned int, unsigned int, unsigned int, unsigned int, 56 unsigned int, unsigned int, bfd_vma, long *); 57static int extract_insn_normal 58 (CGEN_CPU_DESC, const CGEN_INSN *, CGEN_EXTRACT_INFO *, 59 CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma); 60#if CGEN_INT_INSN_P 61static void put_insn_int_value 62 (CGEN_CPU_DESC, CGEN_INSN_BYTES_PTR, int, int, CGEN_INSN_INT); 63#endif 64#if ! CGEN_INT_INSN_P 65static CGEN_INLINE void insert_1 66 (CGEN_CPU_DESC, unsigned long, int, int, int, unsigned char *); 67static CGEN_INLINE int fill_cache 68 (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, bfd_vma); 69static CGEN_INLINE long extract_1 70 (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, int, unsigned char *, bfd_vma); 71#endif 72 73/* Operand insertion. */ 74 75#if ! CGEN_INT_INSN_P 76 77/* Subroutine of insert_normal. */ 78 79static CGEN_INLINE void 80insert_1 (CGEN_CPU_DESC cd, 81 unsigned long value, 82 int start, 83 int length, 84 int word_length, 85 unsigned char *bufp) 86{ 87 unsigned long x,mask; 88 int shift; 89 90 x = cgen_get_insn_value (cd, bufp, word_length); 91 92 /* Written this way to avoid undefined behaviour. */ 93 mask = (((1L << (length - 1)) - 1) << 1) | 1; 94 if (CGEN_INSN_LSB0_P) 95 shift = (start + 1) - length; 96 else 97 shift = (word_length - (start + length)); 98 x = (x & ~(mask << shift)) | ((value & mask) << shift); 99 100 cgen_put_insn_value (cd, bufp, word_length, (bfd_vma) x); 101} 102 103#endif /* ! CGEN_INT_INSN_P */ 104 105/* Default insertion routine. 106 107 ATTRS is a mask of the boolean attributes. 108 WORD_OFFSET is the offset in bits from the start of the insn of the value. 109 WORD_LENGTH is the length of the word in bits in which the value resides. 110 START is the starting bit number in the word, architecture origin. 111 LENGTH is the length of VALUE in bits. 112 TOTAL_LENGTH is the total length of the insn in bits. 113 114 The result is an error message or NULL if success. */ 115 116/* ??? This duplicates functionality with bfd's howto table and 117 bfd_install_relocation. */ 118/* ??? This doesn't handle bfd_vma's. Create another function when 119 necessary. */ 120 121static const char * 122insert_normal (CGEN_CPU_DESC cd, 123 long value, 124 unsigned int attrs, 125 unsigned int word_offset, 126 unsigned int start, 127 unsigned int length, 128 unsigned int word_length, 129 unsigned int total_length, 130 CGEN_INSN_BYTES_PTR buffer) 131{ 132 static char errbuf[100]; 133 /* Written this way to avoid undefined behaviour. */ 134 unsigned long mask = (((1L << (length - 1)) - 1) << 1) | 1; 135 136 /* If LENGTH is zero, this operand doesn't contribute to the value. */ 137 if (length == 0) 138 return NULL; 139 140 if (word_length > 8 * sizeof (CGEN_INSN_INT)) 141 abort (); 142 143 /* For architectures with insns smaller than the base-insn-bitsize, 144 word_length may be too big. */ 145 if (cd->min_insn_bitsize < cd->base_insn_bitsize) 146 { 147 if (word_offset == 0 148 && word_length > total_length) 149 word_length = total_length; 150 } 151 152 /* Ensure VALUE will fit. */ 153 if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGN_OPT)) 154 { 155 long minval = - (1L << (length - 1)); 156 unsigned long maxval = mask; 157 158 if ((value > 0 && (unsigned long) value > maxval) 159 || value < minval) 160 { 161 /* xgettext:c-format */ 162 sprintf (errbuf, 163 _("operand out of range (%ld not between %ld and %lu)"), 164 value, minval, maxval); 165 return errbuf; 166 } 167 } 168 else if (! CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED)) 169 { 170 unsigned long maxval = mask; 171 unsigned long val = (unsigned long) value; 172 173 /* For hosts with a word size > 32 check to see if value has been sign 174 extended beyond 32 bits. If so then ignore these higher sign bits 175 as the user is attempting to store a 32-bit signed value into an 176 unsigned 32-bit field which is allowed. */ 177 if (sizeof (unsigned long) > 4 && ((value >> 32) == -1)) 178 val &= 0xFFFFFFFF; 179 180 if (val > maxval) 181 { 182 /* xgettext:c-format */ 183 sprintf (errbuf, 184 _("operand out of range (0x%lx not between 0 and 0x%lx)"), 185 val, maxval); 186 return errbuf; 187 } 188 } 189 else 190 { 191 if (! cgen_signed_overflow_ok_p (cd)) 192 { 193 long minval = - (1L << (length - 1)); 194 long maxval = (1L << (length - 1)) - 1; 195 196 if (value < minval || value > maxval) 197 { 198 sprintf 199 /* xgettext:c-format */ 200 (errbuf, _("operand out of range (%ld not between %ld and %ld)"), 201 value, minval, maxval); 202 return errbuf; 203 } 204 } 205 } 206 207#if CGEN_INT_INSN_P 208 209 { 210 int shift_within_word, shift_to_word, shift; 211 212 /* How to shift the value to BIT0 of the word. */ 213 shift_to_word = total_length - (word_offset + word_length); 214 215 /* How to shift the value to the field within the word. */ 216 if (CGEN_INSN_LSB0_P) 217 shift_within_word = start + 1 - length; 218 else 219 shift_within_word = word_length - start - length; 220 221 /* The total SHIFT, then mask in the value. */ 222 shift = shift_to_word + shift_within_word; 223 *buffer = (*buffer & ~(mask << shift)) | ((value & mask) << shift); 224 } 225 226#else /* ! CGEN_INT_INSN_P */ 227 228 { 229 unsigned char *bufp = (unsigned char *) buffer + word_offset / 8; 230 231 insert_1 (cd, value, start, length, word_length, bufp); 232 } 233 234#endif /* ! CGEN_INT_INSN_P */ 235 236 return NULL; 237} 238 239/* Default insn builder (insert handler). 240 The instruction is recorded in CGEN_INT_INSN_P byte order (meaning 241 that if CGEN_INSN_BYTES_PTR is an int * and thus, the value is 242 recorded in host byte order, otherwise BUFFER is an array of bytes 243 and the value is recorded in target byte order). 244 The result is an error message or NULL if success. */ 245 246static const char * 247insert_insn_normal (CGEN_CPU_DESC cd, 248 const CGEN_INSN * insn, 249 CGEN_FIELDS * fields, 250 CGEN_INSN_BYTES_PTR buffer, 251 bfd_vma pc) 252{ 253 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); 254 unsigned long value; 255 const CGEN_SYNTAX_CHAR_TYPE * syn; 256 257 CGEN_INIT_INSERT (cd); 258 value = CGEN_INSN_BASE_VALUE (insn); 259 260 /* If we're recording insns as numbers (rather than a string of bytes), 261 target byte order handling is deferred until later. */ 262 263#if CGEN_INT_INSN_P 264 265 put_insn_int_value (cd, buffer, cd->base_insn_bitsize, 266 CGEN_FIELDS_BITSIZE (fields), value); 267 268#else 269 270 cgen_put_insn_value (cd, buffer, min ((unsigned) cd->base_insn_bitsize, 271 (unsigned) CGEN_FIELDS_BITSIZE (fields)), 272 value); 273 274#endif /* ! CGEN_INT_INSN_P */ 275 276 /* ??? It would be better to scan the format's fields. 277 Still need to be able to insert a value based on the operand though; 278 e.g. storing a branch displacement that got resolved later. 279 Needs more thought first. */ 280 281 for (syn = CGEN_SYNTAX_STRING (syntax); * syn; ++ syn) 282 { 283 const char *errmsg; 284 285 if (CGEN_SYNTAX_CHAR_P (* syn)) 286 continue; 287 288 errmsg = (* cd->insert_operand) (cd, CGEN_SYNTAX_FIELD (*syn), 289 fields, buffer, pc); 290 if (errmsg) 291 return errmsg; 292 } 293 294 return NULL; 295} 296 297#if CGEN_INT_INSN_P 298/* Cover function to store an insn value into an integral insn. Must go here 299 because it needs <prefix>-desc.h for CGEN_INT_INSN_P. */ 300 301static void 302put_insn_int_value (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 303 CGEN_INSN_BYTES_PTR buf, 304 int length, 305 int insn_length, 306 CGEN_INSN_INT value) 307{ 308 /* For architectures with insns smaller than the base-insn-bitsize, 309 length may be too big. */ 310 if (length > insn_length) 311 *buf = value; 312 else 313 { 314 int shift = insn_length - length; 315 /* Written this way to avoid undefined behaviour. */ 316 CGEN_INSN_INT mask = (((1L << (length - 1)) - 1) << 1) | 1; 317 318 *buf = (*buf & ~(mask << shift)) | ((value & mask) << shift); 319 } 320} 321#endif 322 323/* Operand extraction. */ 324 325#if ! CGEN_INT_INSN_P 326 327/* Subroutine of extract_normal. 328 Ensure sufficient bytes are cached in EX_INFO. 329 OFFSET is the offset in bytes from the start of the insn of the value. 330 BYTES is the length of the needed value. 331 Returns 1 for success, 0 for failure. */ 332 333static CGEN_INLINE int 334fill_cache (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 335 CGEN_EXTRACT_INFO *ex_info, 336 int offset, 337 int bytes, 338 bfd_vma pc) 339{ 340 /* It's doubtful that the middle part has already been fetched so 341 we don't optimize that case. kiss. */ 342 unsigned int mask; 343 disassemble_info *info = (disassemble_info *) ex_info->dis_info; 344 345 /* First do a quick check. */ 346 mask = (1 << bytes) - 1; 347 if (((ex_info->valid >> offset) & mask) == mask) 348 return 1; 349 350 /* Search for the first byte we need to read. */ 351 for (mask = 1 << offset; bytes > 0; --bytes, ++offset, mask <<= 1) 352 if (! (mask & ex_info->valid)) 353 break; 354 355 if (bytes) 356 { 357 int status; 358 359 pc += offset; 360 status = (*info->read_memory_func) 361 (pc, ex_info->insn_bytes + offset, bytes, info); 362 363 if (status != 0) 364 { 365 (*info->memory_error_func) (status, pc, info); 366 return 0; 367 } 368 369 ex_info->valid |= ((1 << bytes) - 1) << offset; 370 } 371 372 return 1; 373} 374 375/* Subroutine of extract_normal. */ 376 377static CGEN_INLINE long 378extract_1 (CGEN_CPU_DESC cd, 379 CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED, 380 int start, 381 int length, 382 int word_length, 383 unsigned char *bufp, 384 bfd_vma pc ATTRIBUTE_UNUSED) 385{ 386 unsigned long x; 387 int shift; 388 389 x = cgen_get_insn_value (cd, bufp, word_length); 390 391 if (CGEN_INSN_LSB0_P) 392 shift = (start + 1) - length; 393 else 394 shift = (word_length - (start + length)); 395 return x >> shift; 396} 397 398#endif /* ! CGEN_INT_INSN_P */ 399 400/* Default extraction routine. 401 402 INSN_VALUE is the first base_insn_bitsize bits of the insn in host order, 403 or sometimes less for cases like the m32r where the base insn size is 32 404 but some insns are 16 bits. 405 ATTRS is a mask of the boolean attributes. We only need `SIGNED', 406 but for generality we take a bitmask of all of them. 407 WORD_OFFSET is the offset in bits from the start of the insn of the value. 408 WORD_LENGTH is the length of the word in bits in which the value resides. 409 START is the starting bit number in the word, architecture origin. 410 LENGTH is the length of VALUE in bits. 411 TOTAL_LENGTH is the total length of the insn in bits. 412 413 Returns 1 for success, 0 for failure. */ 414 415/* ??? The return code isn't properly used. wip. */ 416 417/* ??? This doesn't handle bfd_vma's. Create another function when 418 necessary. */ 419 420static int 421extract_normal (CGEN_CPU_DESC cd, 422#if ! CGEN_INT_INSN_P 423 CGEN_EXTRACT_INFO *ex_info, 424#else 425 CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED, 426#endif 427 CGEN_INSN_INT insn_value, 428 unsigned int attrs, 429 unsigned int word_offset, 430 unsigned int start, 431 unsigned int length, 432 unsigned int word_length, 433 unsigned int total_length, 434#if ! CGEN_INT_INSN_P 435 bfd_vma pc, 436#else 437 bfd_vma pc ATTRIBUTE_UNUSED, 438#endif 439 long *valuep) 440{ 441 long value, mask; 442 443 /* If LENGTH is zero, this operand doesn't contribute to the value 444 so give it a standard value of zero. */ 445 if (length == 0) 446 { 447 *valuep = 0; 448 return 1; 449 } 450 451 if (word_length > 8 * sizeof (CGEN_INSN_INT)) 452 abort (); 453 454 /* For architectures with insns smaller than the insn-base-bitsize, 455 word_length may be too big. */ 456 if (cd->min_insn_bitsize < cd->base_insn_bitsize) 457 { 458 if (word_offset + word_length > total_length) 459 word_length = total_length - word_offset; 460 } 461 462 /* Does the value reside in INSN_VALUE, and at the right alignment? */ 463 464 if (CGEN_INT_INSN_P || (word_offset == 0 && word_length == total_length)) 465 { 466 if (CGEN_INSN_LSB0_P) 467 value = insn_value >> ((word_offset + start + 1) - length); 468 else 469 value = insn_value >> (total_length - ( word_offset + start + length)); 470 } 471 472#if ! CGEN_INT_INSN_P 473 474 else 475 { 476 unsigned char *bufp = ex_info->insn_bytes + word_offset / 8; 477 478 if (word_length > 8 * sizeof (CGEN_INSN_INT)) 479 abort (); 480 481 if (fill_cache (cd, ex_info, word_offset / 8, word_length / 8, pc) == 0) 482 return 0; 483 484 value = extract_1 (cd, ex_info, start, length, word_length, bufp, pc); 485 } 486 487#endif /* ! CGEN_INT_INSN_P */ 488 489 /* Written this way to avoid undefined behaviour. */ 490 mask = (((1L << (length - 1)) - 1) << 1) | 1; 491 492 value &= mask; 493 /* sign extend? */ 494 if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED) 495 && (value & (1L << (length - 1)))) 496 value |= ~mask; 497 498 *valuep = value; 499 500 return 1; 501} 502 503/* Default insn extractor. 504 505 INSN_VALUE is the first base_insn_bitsize bits, translated to host order. 506 The extracted fields are stored in FIELDS. 507 EX_INFO is used to handle reading variable length insns. 508 Return the length of the insn in bits, or 0 if no match, 509 or -1 if an error occurs fetching data (memory_error_func will have 510 been called). */ 511 512static int 513extract_insn_normal (CGEN_CPU_DESC cd, 514 const CGEN_INSN *insn, 515 CGEN_EXTRACT_INFO *ex_info, 516 CGEN_INSN_INT insn_value, 517 CGEN_FIELDS *fields, 518 bfd_vma pc) 519{ 520 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); 521 const CGEN_SYNTAX_CHAR_TYPE *syn; 522 523 CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); 524 525 CGEN_INIT_EXTRACT (cd); 526 527 for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn) 528 { 529 int length; 530 531 if (CGEN_SYNTAX_CHAR_P (*syn)) 532 continue; 533 534 length = (* cd->extract_operand) (cd, CGEN_SYNTAX_FIELD (*syn), 535 ex_info, insn_value, fields, pc); 536 if (length <= 0) 537 return length; 538 } 539 540 /* We recognized and successfully extracted this insn. */ 541 return CGEN_INSN_BITSIZE (insn); 542} 543 544/* Machine generated code added here. */ 545 546const char * ip2k_cgen_insert_operand 547 (CGEN_CPU_DESC, int, CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma); 548 549/* Main entry point for operand insertion. 550 551 This function is basically just a big switch statement. Earlier versions 552 used tables to look up the function to use, but 553 - if the table contains both assembler and disassembler functions then 554 the disassembler contains much of the assembler and vice-versa, 555 - there's a lot of inlining possibilities as things grow, 556 - using a switch statement avoids the function call overhead. 557 558 This function could be moved into `parse_insn_normal', but keeping it 559 separate makes clear the interface between `parse_insn_normal' and each of 560 the handlers. It's also needed by GAS to insert operands that couldn't be 561 resolved during parsing. */ 562 563const char * 564ip2k_cgen_insert_operand (CGEN_CPU_DESC cd, 565 int opindex, 566 CGEN_FIELDS * fields, 567 CGEN_INSN_BYTES_PTR buffer, 568 bfd_vma pc ATTRIBUTE_UNUSED) 569{ 570 const char * errmsg = NULL; 571 unsigned int total_length = CGEN_FIELDS_BITSIZE (fields); 572 573 switch (opindex) 574 { 575 case IP2K_OPERAND_ADDR16CJP : 576 errmsg = insert_normal (cd, fields->f_addr16cjp, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 12, 13, 16, total_length, buffer); 577 break; 578 case IP2K_OPERAND_ADDR16H : 579 errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 7, 8, 16, total_length, buffer); 580 break; 581 case IP2K_OPERAND_ADDR16L : 582 errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 7, 8, 16, total_length, buffer); 583 break; 584 case IP2K_OPERAND_ADDR16P : 585 errmsg = insert_normal (cd, fields->f_page3, 0, 0, 2, 3, 16, total_length, buffer); 586 break; 587 case IP2K_OPERAND_BITNO : 588 errmsg = insert_normal (cd, fields->f_bitno, 0, 0, 11, 3, 16, total_length, buffer); 589 break; 590 case IP2K_OPERAND_CBIT : 591 break; 592 case IP2K_OPERAND_DCBIT : 593 break; 594 case IP2K_OPERAND_FR : 595 errmsg = insert_normal (cd, fields->f_reg, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 9, 16, total_length, buffer); 596 break; 597 case IP2K_OPERAND_LIT8 : 598 errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 7, 8, 16, total_length, buffer); 599 break; 600 case IP2K_OPERAND_PABITS : 601 break; 602 case IP2K_OPERAND_RETI3 : 603 errmsg = insert_normal (cd, fields->f_reti3, 0, 0, 2, 3, 16, total_length, buffer); 604 break; 605 case IP2K_OPERAND_ZBIT : 606 break; 607 608 default : 609 /* xgettext:c-format */ 610 fprintf (stderr, _("Unrecognized field %d while building insn.\n"), 611 opindex); 612 abort (); 613 } 614 615 return errmsg; 616} 617 618int ip2k_cgen_extract_operand 619 (CGEN_CPU_DESC, int, CGEN_EXTRACT_INFO *, CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma); 620 621/* Main entry point for operand extraction. 622 The result is <= 0 for error, >0 for success. 623 ??? Actual values aren't well defined right now. 624 625 This function is basically just a big switch statement. Earlier versions 626 used tables to look up the function to use, but 627 - if the table contains both assembler and disassembler functions then 628 the disassembler contains much of the assembler and vice-versa, 629 - there's a lot of inlining possibilities as things grow, 630 - using a switch statement avoids the function call overhead. 631 632 This function could be moved into `print_insn_normal', but keeping it 633 separate makes clear the interface between `print_insn_normal' and each of 634 the handlers. */ 635 636int 637ip2k_cgen_extract_operand (CGEN_CPU_DESC cd, 638 int opindex, 639 CGEN_EXTRACT_INFO *ex_info, 640 CGEN_INSN_INT insn_value, 641 CGEN_FIELDS * fields, 642 bfd_vma pc) 643{ 644 /* Assume success (for those operands that are nops). */ 645 int length = 1; 646 unsigned int total_length = CGEN_FIELDS_BITSIZE (fields); 647 648 switch (opindex) 649 { 650 case IP2K_OPERAND_ADDR16CJP : 651 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 12, 13, 16, total_length, pc, & fields->f_addr16cjp); 652 break; 653 case IP2K_OPERAND_ADDR16H : 654 length = extract_normal (cd, ex_info, insn_value, 0, 0, 7, 8, 16, total_length, pc, & fields->f_imm8); 655 break; 656 case IP2K_OPERAND_ADDR16L : 657 length = extract_normal (cd, ex_info, insn_value, 0, 0, 7, 8, 16, total_length, pc, & fields->f_imm8); 658 break; 659 case IP2K_OPERAND_ADDR16P : 660 length = extract_normal (cd, ex_info, insn_value, 0, 0, 2, 3, 16, total_length, pc, & fields->f_page3); 661 break; 662 case IP2K_OPERAND_BITNO : 663 length = extract_normal (cd, ex_info, insn_value, 0, 0, 11, 3, 16, total_length, pc, & fields->f_bitno); 664 break; 665 case IP2K_OPERAND_CBIT : 666 break; 667 case IP2K_OPERAND_DCBIT : 668 break; 669 case IP2K_OPERAND_FR : 670 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 9, 16, total_length, pc, & fields->f_reg); 671 break; 672 case IP2K_OPERAND_LIT8 : 673 length = extract_normal (cd, ex_info, insn_value, 0, 0, 7, 8, 16, total_length, pc, & fields->f_imm8); 674 break; 675 case IP2K_OPERAND_PABITS : 676 break; 677 case IP2K_OPERAND_RETI3 : 678 length = extract_normal (cd, ex_info, insn_value, 0, 0, 2, 3, 16, total_length, pc, & fields->f_reti3); 679 break; 680 case IP2K_OPERAND_ZBIT : 681 break; 682 683 default : 684 /* xgettext:c-format */ 685 fprintf (stderr, _("Unrecognized field %d while decoding insn.\n"), 686 opindex); 687 abort (); 688 } 689 690 return length; 691} 692 693cgen_insert_fn * const ip2k_cgen_insert_handlers[] = 694{ 695 insert_insn_normal, 696}; 697 698cgen_extract_fn * const ip2k_cgen_extract_handlers[] = 699{ 700 extract_insn_normal, 701}; 702 703int ip2k_cgen_get_int_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *); 704bfd_vma ip2k_cgen_get_vma_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *); 705 706/* Getting values from cgen_fields is handled by a collection of functions. 707 They are distinguished by the type of the VALUE argument they return. 708 TODO: floating point, inlining support, remove cases where result type 709 not appropriate. */ 710 711int 712ip2k_cgen_get_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 713 int opindex, 714 const CGEN_FIELDS * fields) 715{ 716 int value; 717 718 switch (opindex) 719 { 720 case IP2K_OPERAND_ADDR16CJP : 721 value = fields->f_addr16cjp; 722 break; 723 case IP2K_OPERAND_ADDR16H : 724 value = fields->f_imm8; 725 break; 726 case IP2K_OPERAND_ADDR16L : 727 value = fields->f_imm8; 728 break; 729 case IP2K_OPERAND_ADDR16P : 730 value = fields->f_page3; 731 break; 732 case IP2K_OPERAND_BITNO : 733 value = fields->f_bitno; 734 break; 735 case IP2K_OPERAND_CBIT : 736 value = 0; 737 break; 738 case IP2K_OPERAND_DCBIT : 739 value = 0; 740 break; 741 case IP2K_OPERAND_FR : 742 value = fields->f_reg; 743 break; 744 case IP2K_OPERAND_LIT8 : 745 value = fields->f_imm8; 746 break; 747 case IP2K_OPERAND_PABITS : 748 value = 0; 749 break; 750 case IP2K_OPERAND_RETI3 : 751 value = fields->f_reti3; 752 break; 753 case IP2K_OPERAND_ZBIT : 754 value = 0; 755 break; 756 757 default : 758 /* xgettext:c-format */ 759 fprintf (stderr, _("Unrecognized field %d while getting int operand.\n"), 760 opindex); 761 abort (); 762 } 763 764 return value; 765} 766 767bfd_vma 768ip2k_cgen_get_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 769 int opindex, 770 const CGEN_FIELDS * fields) 771{ 772 bfd_vma value; 773 774 switch (opindex) 775 { 776 case IP2K_OPERAND_ADDR16CJP : 777 value = fields->f_addr16cjp; 778 break; 779 case IP2K_OPERAND_ADDR16H : 780 value = fields->f_imm8; 781 break; 782 case IP2K_OPERAND_ADDR16L : 783 value = fields->f_imm8; 784 break; 785 case IP2K_OPERAND_ADDR16P : 786 value = fields->f_page3; 787 break; 788 case IP2K_OPERAND_BITNO : 789 value = fields->f_bitno; 790 break; 791 case IP2K_OPERAND_CBIT : 792 value = 0; 793 break; 794 case IP2K_OPERAND_DCBIT : 795 value = 0; 796 break; 797 case IP2K_OPERAND_FR : 798 value = fields->f_reg; 799 break; 800 case IP2K_OPERAND_LIT8 : 801 value = fields->f_imm8; 802 break; 803 case IP2K_OPERAND_PABITS : 804 value = 0; 805 break; 806 case IP2K_OPERAND_RETI3 : 807 value = fields->f_reti3; 808 break; 809 case IP2K_OPERAND_ZBIT : 810 value = 0; 811 break; 812 813 default : 814 /* xgettext:c-format */ 815 fprintf (stderr, _("Unrecognized field %d while getting vma operand.\n"), 816 opindex); 817 abort (); 818 } 819 820 return value; 821} 822 823void ip2k_cgen_set_int_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, int); 824void ip2k_cgen_set_vma_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, bfd_vma); 825 826/* Stuffing values in cgen_fields is handled by a collection of functions. 827 They are distinguished by the type of the VALUE argument they accept. 828 TODO: floating point, inlining support, remove cases where argument type 829 not appropriate. */ 830 831void 832ip2k_cgen_set_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 833 int opindex, 834 CGEN_FIELDS * fields, 835 int value) 836{ 837 switch (opindex) 838 { 839 case IP2K_OPERAND_ADDR16CJP : 840 fields->f_addr16cjp = value; 841 break; 842 case IP2K_OPERAND_ADDR16H : 843 fields->f_imm8 = value; 844 break; 845 case IP2K_OPERAND_ADDR16L : 846 fields->f_imm8 = value; 847 break; 848 case IP2K_OPERAND_ADDR16P : 849 fields->f_page3 = value; 850 break; 851 case IP2K_OPERAND_BITNO : 852 fields->f_bitno = value; 853 break; 854 case IP2K_OPERAND_CBIT : 855 break; 856 case IP2K_OPERAND_DCBIT : 857 break; 858 case IP2K_OPERAND_FR : 859 fields->f_reg = value; 860 break; 861 case IP2K_OPERAND_LIT8 : 862 fields->f_imm8 = value; 863 break; 864 case IP2K_OPERAND_PABITS : 865 break; 866 case IP2K_OPERAND_RETI3 : 867 fields->f_reti3 = value; 868 break; 869 case IP2K_OPERAND_ZBIT : 870 break; 871 872 default : 873 /* xgettext:c-format */ 874 fprintf (stderr, _("Unrecognized field %d while setting int operand.\n"), 875 opindex); 876 abort (); 877 } 878} 879 880void 881ip2k_cgen_set_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 882 int opindex, 883 CGEN_FIELDS * fields, 884 bfd_vma value) 885{ 886 switch (opindex) 887 { 888 case IP2K_OPERAND_ADDR16CJP : 889 fields->f_addr16cjp = value; 890 break; 891 case IP2K_OPERAND_ADDR16H : 892 fields->f_imm8 = value; 893 break; 894 case IP2K_OPERAND_ADDR16L : 895 fields->f_imm8 = value; 896 break; 897 case IP2K_OPERAND_ADDR16P : 898 fields->f_page3 = value; 899 break; 900 case IP2K_OPERAND_BITNO : 901 fields->f_bitno = value; 902 break; 903 case IP2K_OPERAND_CBIT : 904 break; 905 case IP2K_OPERAND_DCBIT : 906 break; 907 case IP2K_OPERAND_FR : 908 fields->f_reg = value; 909 break; 910 case IP2K_OPERAND_LIT8 : 911 fields->f_imm8 = value; 912 break; 913 case IP2K_OPERAND_PABITS : 914 break; 915 case IP2K_OPERAND_RETI3 : 916 fields->f_reti3 = value; 917 break; 918 case IP2K_OPERAND_ZBIT : 919 break; 920 921 default : 922 /* xgettext:c-format */ 923 fprintf (stderr, _("Unrecognized field %d while setting vma operand.\n"), 924 opindex); 925 abort (); 926 } 927} 928 929/* Function to call before using the instruction builder tables. */ 930 931void 932ip2k_cgen_init_ibld_table (CGEN_CPU_DESC cd) 933{ 934 cd->insert_handlers = & ip2k_cgen_insert_handlers[0]; 935 cd->extract_handlers = & ip2k_cgen_extract_handlers[0]; 936 937 cd->insert_operand = ip2k_cgen_insert_operand; 938 cd->extract_operand = ip2k_cgen_extract_operand; 939 940 cd->get_int_operand = ip2k_cgen_get_int_operand; 941 cd->set_int_operand = ip2k_cgen_set_int_operand; 942 cd->get_vma_operand = ip2k_cgen_get_vma_operand; 943 cd->set_vma_operand = ip2k_cgen_set_vma_operand; 944} 945