1/* DO NOT EDIT! -*- buffer-read-only: t -*- vi:set ro: */ 2/* Instruction building/extraction support for xstormy16. -*- C -*- 3 4 THIS FILE IS MACHINE GENERATED WITH CGEN: Cpu tools GENerator. 5 - the resultant file is machine generated, cgen-ibld.in isn't 6 7 Copyright (C) 1996-2022 Free Software Foundation, Inc. 8 9 This file is part of libopcodes. 10 11 This library is free software; you can redistribute it and/or modify 12 it under the terms of the GNU General Public License as published by 13 the Free Software Foundation; either version 3, or (at your option) 14 any later version. 15 16 It is distributed in the hope that it will be useful, but WITHOUT 17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 18 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 19 License for more details. 20 21 You should have received a copy of the GNU General Public License 22 along with this program; if not, write to the Free Software Foundation, Inc., 23 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 24 25/* ??? Eventually more and more of this stuff can go to cpu-independent files. 26 Keep that in mind. */ 27 28#include "sysdep.h" 29#include <stdio.h> 30#include "ansidecl.h" 31#include "dis-asm.h" 32#include "bfd.h" 33#include "symcat.h" 34#include "xstormy16-desc.h" 35#include "xstormy16-opc.h" 36#include "cgen/basic-modes.h" 37#include "opintl.h" 38#include "safe-ctype.h" 39 40#undef min 41#define min(a,b) ((a) < (b) ? (a) : (b)) 42#undef max 43#define max(a,b) ((a) > (b) ? (a) : (b)) 44 45/* Used by the ifield rtx function. */ 46#define FLD(f) (fields->f) 47 48static const char * insert_normal 49 (CGEN_CPU_DESC, long, unsigned int, unsigned int, unsigned int, 50 unsigned int, unsigned int, unsigned int, CGEN_INSN_BYTES_PTR); 51static const char * insert_insn_normal 52 (CGEN_CPU_DESC, const CGEN_INSN *, 53 CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma); 54static int extract_normal 55 (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, CGEN_INSN_INT, 56 unsigned int, unsigned int, unsigned int, unsigned int, 57 unsigned int, unsigned int, bfd_vma, long *); 58static int extract_insn_normal 59 (CGEN_CPU_DESC, const CGEN_INSN *, CGEN_EXTRACT_INFO *, 60 CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma); 61#if CGEN_INT_INSN_P 62static void put_insn_int_value 63 (CGEN_CPU_DESC, CGEN_INSN_BYTES_PTR, int, int, CGEN_INSN_INT); 64#endif 65#if ! CGEN_INT_INSN_P 66static CGEN_INLINE void insert_1 67 (CGEN_CPU_DESC, unsigned long, int, int, int, unsigned char *); 68static CGEN_INLINE int fill_cache 69 (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, bfd_vma); 70static CGEN_INLINE long extract_1 71 (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, int, unsigned char *, bfd_vma); 72#endif 73 74/* Operand insertion. */ 75 76#if ! CGEN_INT_INSN_P 77 78/* Subroutine of insert_normal. */ 79 80static CGEN_INLINE void 81insert_1 (CGEN_CPU_DESC cd, 82 unsigned long value, 83 int start, 84 int length, 85 int word_length, 86 unsigned char *bufp) 87{ 88 unsigned long x, mask; 89 int shift; 90 91 x = cgen_get_insn_value (cd, bufp, word_length, cd->endian); 92 93 /* Written this way to avoid undefined behaviour. */ 94 mask = (1UL << (length - 1) << 1) - 1; 95 if (CGEN_INSN_LSB0_P) 96 shift = (start + 1) - length; 97 else 98 shift = (word_length - (start + length)); 99 x = (x & ~(mask << shift)) | ((value & mask) << shift); 100 101 cgen_put_insn_value (cd, bufp, word_length, (bfd_vma) x, cd->endian); 102} 103 104#endif /* ! CGEN_INT_INSN_P */ 105 106/* Default insertion routine. 107 108 ATTRS is a mask of the boolean attributes. 109 WORD_OFFSET is the offset in bits from the start of the insn of the value. 110 WORD_LENGTH is the length of the word in bits in which the value resides. 111 START is the starting bit number in the word, architecture origin. 112 LENGTH is the length of VALUE in bits. 113 TOTAL_LENGTH is the total length of the insn in bits. 114 115 The result is an error message or NULL if success. */ 116 117/* ??? This duplicates functionality with bfd's howto table and 118 bfd_install_relocation. */ 119/* ??? This doesn't handle bfd_vma's. Create another function when 120 necessary. */ 121 122static const char * 123insert_normal (CGEN_CPU_DESC cd, 124 long value, 125 unsigned int attrs, 126 unsigned int word_offset, 127 unsigned int start, 128 unsigned int length, 129 unsigned int word_length, 130 unsigned int total_length, 131 CGEN_INSN_BYTES_PTR buffer) 132{ 133 static char errbuf[100]; 134 unsigned long mask; 135 136 /* If LENGTH is zero, this operand doesn't contribute to the value. */ 137 if (length == 0) 138 return NULL; 139 140 /* Written this way to avoid undefined behaviour. */ 141 mask = (1UL << (length - 1) << 1) - 1; 142 143 if (word_length > 8 * sizeof (CGEN_INSN_INT)) 144 abort (); 145 146 /* For architectures with insns smaller than the base-insn-bitsize, 147 word_length may be too big. */ 148 if (cd->min_insn_bitsize < cd->base_insn_bitsize) 149 { 150 if (word_offset == 0 151 && word_length > total_length) 152 word_length = total_length; 153 } 154 155 /* Ensure VALUE will fit. */ 156 if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGN_OPT)) 157 { 158 long minval = - (1UL << (length - 1)); 159 unsigned long maxval = mask; 160 161 if ((value > 0 && (unsigned long) value > maxval) 162 || value < minval) 163 { 164 /* xgettext:c-format */ 165 sprintf (errbuf, 166 _("operand out of range (%ld not between %ld and %lu)"), 167 value, minval, maxval); 168 return errbuf; 169 } 170 } 171 else if (! CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED)) 172 { 173 unsigned long maxval = mask; 174 unsigned long val = (unsigned long) value; 175 176 /* For hosts with a word size > 32 check to see if value has been sign 177 extended beyond 32 bits. If so then ignore these higher sign bits 178 as the user is attempting to store a 32-bit signed value into an 179 unsigned 32-bit field which is allowed. */ 180 if (sizeof (unsigned long) > 4 && ((value >> 32) == -1)) 181 val &= 0xFFFFFFFF; 182 183 if (val > maxval) 184 { 185 /* xgettext:c-format */ 186 sprintf (errbuf, 187 _("operand out of range (0x%lx not between 0 and 0x%lx)"), 188 val, maxval); 189 return errbuf; 190 } 191 } 192 else 193 { 194 if (! cgen_signed_overflow_ok_p (cd)) 195 { 196 long minval = - (1UL << (length - 1)); 197 long maxval = (1UL << (length - 1)) - 1; 198 199 if (value < minval || value > maxval) 200 { 201 sprintf 202 /* xgettext:c-format */ 203 (errbuf, _("operand out of range (%ld not between %ld and %ld)"), 204 value, minval, maxval); 205 return errbuf; 206 } 207 } 208 } 209 210#if CGEN_INT_INSN_P 211 212 { 213 int shift_within_word, shift_to_word, shift; 214 215 /* How to shift the value to BIT0 of the word. */ 216 shift_to_word = total_length - (word_offset + word_length); 217 218 /* How to shift the value to the field within the word. */ 219 if (CGEN_INSN_LSB0_P) 220 shift_within_word = start + 1 - length; 221 else 222 shift_within_word = word_length - start - length; 223 224 /* The total SHIFT, then mask in the value. */ 225 shift = shift_to_word + shift_within_word; 226 *buffer = (*buffer & ~(mask << shift)) | ((value & mask) << shift); 227 } 228 229#else /* ! CGEN_INT_INSN_P */ 230 231 { 232 unsigned char *bufp = (unsigned char *) buffer + word_offset / 8; 233 234 insert_1 (cd, value, start, length, word_length, bufp); 235 } 236 237#endif /* ! CGEN_INT_INSN_P */ 238 239 return NULL; 240} 241 242/* Default insn builder (insert handler). 243 The instruction is recorded in CGEN_INT_INSN_P byte order (meaning 244 that if CGEN_INSN_BYTES_PTR is an int * and thus, the value is 245 recorded in host byte order, otherwise BUFFER is an array of bytes 246 and the value is recorded in target byte order). 247 The result is an error message or NULL if success. */ 248 249static const char * 250insert_insn_normal (CGEN_CPU_DESC cd, 251 const CGEN_INSN * insn, 252 CGEN_FIELDS * fields, 253 CGEN_INSN_BYTES_PTR buffer, 254 bfd_vma pc) 255{ 256 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); 257 unsigned long value; 258 const CGEN_SYNTAX_CHAR_TYPE * syn; 259 260 CGEN_INIT_INSERT (cd); 261 value = CGEN_INSN_BASE_VALUE (insn); 262 263 /* If we're recording insns as numbers (rather than a string of bytes), 264 target byte order handling is deferred until later. */ 265 266#if CGEN_INT_INSN_P 267 268 put_insn_int_value (cd, buffer, cd->base_insn_bitsize, 269 CGEN_FIELDS_BITSIZE (fields), value); 270 271#else 272 273 cgen_put_insn_value (cd, buffer, min ((unsigned) cd->base_insn_bitsize, 274 (unsigned) CGEN_FIELDS_BITSIZE (fields)), 275 value, cd->insn_endian); 276 277#endif /* ! CGEN_INT_INSN_P */ 278 279 /* ??? It would be better to scan the format's fields. 280 Still need to be able to insert a value based on the operand though; 281 e.g. storing a branch displacement that got resolved later. 282 Needs more thought first. */ 283 284 for (syn = CGEN_SYNTAX_STRING (syntax); * syn; ++ syn) 285 { 286 const char *errmsg; 287 288 if (CGEN_SYNTAX_CHAR_P (* syn)) 289 continue; 290 291 errmsg = (* cd->insert_operand) (cd, CGEN_SYNTAX_FIELD (*syn), 292 fields, buffer, pc); 293 if (errmsg) 294 return errmsg; 295 } 296 297 return NULL; 298} 299 300#if CGEN_INT_INSN_P 301/* Cover function to store an insn value into an integral insn. Must go here 302 because it needs <prefix>-desc.h for CGEN_INT_INSN_P. */ 303 304static void 305put_insn_int_value (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 306 CGEN_INSN_BYTES_PTR buf, 307 int length, 308 int insn_length, 309 CGEN_INSN_INT value) 310{ 311 /* For architectures with insns smaller than the base-insn-bitsize, 312 length may be too big. */ 313 if (length > insn_length) 314 *buf = value; 315 else 316 { 317 int shift = insn_length - length; 318 /* Written this way to avoid undefined behaviour. */ 319 CGEN_INSN_INT mask = length == 0 ? 0 : (1UL << (length - 1) << 1) - 1; 320 321 *buf = (*buf & ~(mask << shift)) | ((value & mask) << shift); 322 } 323} 324#endif 325 326/* Operand extraction. */ 327 328#if ! CGEN_INT_INSN_P 329 330/* Subroutine of extract_normal. 331 Ensure sufficient bytes are cached in EX_INFO. 332 OFFSET is the offset in bytes from the start of the insn of the value. 333 BYTES is the length of the needed value. 334 Returns 1 for success, 0 for failure. */ 335 336static CGEN_INLINE int 337fill_cache (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 338 CGEN_EXTRACT_INFO *ex_info, 339 int offset, 340 int bytes, 341 bfd_vma pc) 342{ 343 /* It's doubtful that the middle part has already been fetched so 344 we don't optimize that case. kiss. */ 345 unsigned int mask; 346 disassemble_info *info = (disassemble_info *) ex_info->dis_info; 347 348 /* First do a quick check. */ 349 mask = (1 << bytes) - 1; 350 if (((ex_info->valid >> offset) & mask) == mask) 351 return 1; 352 353 /* Search for the first byte we need to read. */ 354 for (mask = 1 << offset; bytes > 0; --bytes, ++offset, mask <<= 1) 355 if (! (mask & ex_info->valid)) 356 break; 357 358 if (bytes) 359 { 360 int status; 361 362 pc += offset; 363 status = (*info->read_memory_func) 364 (pc, ex_info->insn_bytes + offset, bytes, info); 365 366 if (status != 0) 367 { 368 (*info->memory_error_func) (status, pc, info); 369 return 0; 370 } 371 372 ex_info->valid |= ((1 << bytes) - 1) << offset; 373 } 374 375 return 1; 376} 377 378/* Subroutine of extract_normal. */ 379 380static CGEN_INLINE long 381extract_1 (CGEN_CPU_DESC cd, 382 CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED, 383 int start, 384 int length, 385 int word_length, 386 unsigned char *bufp, 387 bfd_vma pc ATTRIBUTE_UNUSED) 388{ 389 unsigned long x; 390 int shift; 391 392 x = cgen_get_insn_value (cd, bufp, word_length, cd->endian); 393 394 if (CGEN_INSN_LSB0_P) 395 shift = (start + 1) - length; 396 else 397 shift = (word_length - (start + length)); 398 return x >> shift; 399} 400 401#endif /* ! CGEN_INT_INSN_P */ 402 403/* Default extraction routine. 404 405 INSN_VALUE is the first base_insn_bitsize bits of the insn in host order, 406 or sometimes less for cases like the m32r where the base insn size is 32 407 but some insns are 16 bits. 408 ATTRS is a mask of the boolean attributes. We only need `SIGNED', 409 but for generality we take a bitmask of all of them. 410 WORD_OFFSET is the offset in bits from the start of the insn of the value. 411 WORD_LENGTH is the length of the word in bits in which the value resides. 412 START is the starting bit number in the word, architecture origin. 413 LENGTH is the length of VALUE in bits. 414 TOTAL_LENGTH is the total length of the insn in bits. 415 416 Returns 1 for success, 0 for failure. */ 417 418/* ??? The return code isn't properly used. wip. */ 419 420/* ??? This doesn't handle bfd_vma's. Create another function when 421 necessary. */ 422 423static int 424extract_normal (CGEN_CPU_DESC cd, 425#if ! CGEN_INT_INSN_P 426 CGEN_EXTRACT_INFO *ex_info, 427#else 428 CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED, 429#endif 430 CGEN_INSN_INT insn_value, 431 unsigned int attrs, 432 unsigned int word_offset, 433 unsigned int start, 434 unsigned int length, 435 unsigned int word_length, 436 unsigned int total_length, 437#if ! CGEN_INT_INSN_P 438 bfd_vma pc, 439#else 440 bfd_vma pc ATTRIBUTE_UNUSED, 441#endif 442 long *valuep) 443{ 444 long value, mask; 445 446 /* If LENGTH is zero, this operand doesn't contribute to the value 447 so give it a standard value of zero. */ 448 if (length == 0) 449 { 450 *valuep = 0; 451 return 1; 452 } 453 454 if (word_length > 8 * sizeof (CGEN_INSN_INT)) 455 abort (); 456 457 /* For architectures with insns smaller than the insn-base-bitsize, 458 word_length may be too big. */ 459 if (cd->min_insn_bitsize < cd->base_insn_bitsize) 460 { 461 if (word_offset + word_length > total_length) 462 word_length = total_length - word_offset; 463 } 464 465 /* Does the value reside in INSN_VALUE, and at the right alignment? */ 466 467 if (CGEN_INT_INSN_P || (word_offset == 0 && word_length == total_length)) 468 { 469 if (CGEN_INSN_LSB0_P) 470 value = insn_value >> ((word_offset + start + 1) - length); 471 else 472 value = insn_value >> (total_length - ( word_offset + start + length)); 473 } 474 475#if ! CGEN_INT_INSN_P 476 477 else 478 { 479 unsigned char *bufp = ex_info->insn_bytes + word_offset / 8; 480 481 if (word_length > 8 * sizeof (CGEN_INSN_INT)) 482 abort (); 483 484 if (fill_cache (cd, ex_info, word_offset / 8, word_length / 8, pc) == 0) 485 { 486 *valuep = 0; 487 return 0; 488 } 489 490 value = extract_1 (cd, ex_info, start, length, word_length, bufp, pc); 491 } 492 493#endif /* ! CGEN_INT_INSN_P */ 494 495 /* Written this way to avoid undefined behaviour. */ 496 mask = (1UL << (length - 1) << 1) - 1; 497 498 value &= mask; 499 /* sign extend? */ 500 if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED) 501 && (value & (1UL << (length - 1)))) 502 value |= ~mask; 503 504 *valuep = value; 505 506 return 1; 507} 508 509/* Default insn extractor. 510 511 INSN_VALUE is the first base_insn_bitsize bits, translated to host order. 512 The extracted fields are stored in FIELDS. 513 EX_INFO is used to handle reading variable length insns. 514 Return the length of the insn in bits, or 0 if no match, 515 or -1 if an error occurs fetching data (memory_error_func will have 516 been called). */ 517 518static int 519extract_insn_normal (CGEN_CPU_DESC cd, 520 const CGEN_INSN *insn, 521 CGEN_EXTRACT_INFO *ex_info, 522 CGEN_INSN_INT insn_value, 523 CGEN_FIELDS *fields, 524 bfd_vma pc) 525{ 526 const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn); 527 const CGEN_SYNTAX_CHAR_TYPE *syn; 528 529 CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn); 530 531 CGEN_INIT_EXTRACT (cd); 532 533 for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn) 534 { 535 int length; 536 537 if (CGEN_SYNTAX_CHAR_P (*syn)) 538 continue; 539 540 length = (* cd->extract_operand) (cd, CGEN_SYNTAX_FIELD (*syn), 541 ex_info, insn_value, fields, pc); 542 if (length <= 0) 543 return length; 544 } 545 546 /* We recognized and successfully extracted this insn. */ 547 return CGEN_INSN_BITSIZE (insn); 548} 549 550/* Machine generated code added here. */ 551 552const char * xstormy16_cgen_insert_operand 553 (CGEN_CPU_DESC, int, CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma); 554 555/* Main entry point for operand insertion. 556 557 This function is basically just a big switch statement. Earlier versions 558 used tables to look up the function to use, but 559 - if the table contains both assembler and disassembler functions then 560 the disassembler contains much of the assembler and vice-versa, 561 - there's a lot of inlining possibilities as things grow, 562 - using a switch statement avoids the function call overhead. 563 564 This function could be moved into `parse_insn_normal', but keeping it 565 separate makes clear the interface between `parse_insn_normal' and each of 566 the handlers. It's also needed by GAS to insert operands that couldn't be 567 resolved during parsing. */ 568 569const char * 570xstormy16_cgen_insert_operand (CGEN_CPU_DESC cd, 571 int opindex, 572 CGEN_FIELDS * fields, 573 CGEN_INSN_BYTES_PTR buffer, 574 bfd_vma pc ATTRIBUTE_UNUSED) 575{ 576 const char * errmsg = NULL; 577 unsigned int total_length = CGEN_FIELDS_BITSIZE (fields); 578 579 switch (opindex) 580 { 581 case XSTORMY16_OPERAND_RB : 582 errmsg = insert_normal (cd, fields->f_Rb, 0, 0, 17, 3, 32, total_length, buffer); 583 break; 584 case XSTORMY16_OPERAND_RBJ : 585 errmsg = insert_normal (cd, fields->f_Rbj, 0, 0, 11, 1, 32, total_length, buffer); 586 break; 587 case XSTORMY16_OPERAND_RD : 588 errmsg = insert_normal (cd, fields->f_Rd, 0, 0, 12, 4, 32, total_length, buffer); 589 break; 590 case XSTORMY16_OPERAND_RDM : 591 errmsg = insert_normal (cd, fields->f_Rdm, 0, 0, 13, 3, 32, total_length, buffer); 592 break; 593 case XSTORMY16_OPERAND_RM : 594 errmsg = insert_normal (cd, fields->f_Rm, 0, 0, 4, 3, 32, total_length, buffer); 595 break; 596 case XSTORMY16_OPERAND_RS : 597 errmsg = insert_normal (cd, fields->f_Rs, 0, 0, 8, 4, 32, total_length, buffer); 598 break; 599 case XSTORMY16_OPERAND_ABS24 : 600 { 601{ 602 FLD (f_abs24_1) = ((FLD (f_abs24)) & (255)); 603 FLD (f_abs24_2) = ((UINT) (FLD (f_abs24)) >> (8)); 604} 605 errmsg = insert_normal (cd, fields->f_abs24_1, 0, 0, 8, 8, 32, total_length, buffer); 606 if (errmsg) 607 break; 608 errmsg = insert_normal (cd, fields->f_abs24_2, 0, 0, 16, 16, 32, total_length, buffer); 609 if (errmsg) 610 break; 611 } 612 break; 613 case XSTORMY16_OPERAND_BCOND2 : 614 errmsg = insert_normal (cd, fields->f_op2, 0, 0, 4, 4, 32, total_length, buffer); 615 break; 616 case XSTORMY16_OPERAND_BCOND5 : 617 errmsg = insert_normal (cd, fields->f_op5, 0, 0, 16, 4, 32, total_length, buffer); 618 break; 619 case XSTORMY16_OPERAND_HMEM8 : 620 { 621 long value = fields->f_hmem8; 622 value = ((value) - (32512)); 623 errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 8, 32, total_length, buffer); 624 } 625 break; 626 case XSTORMY16_OPERAND_IMM12 : 627 errmsg = insert_normal (cd, fields->f_imm12, 0|(1<<CGEN_IFLD_SIGNED), 0, 20, 12, 32, total_length, buffer); 628 break; 629 case XSTORMY16_OPERAND_IMM16 : 630 errmsg = insert_normal (cd, fields->f_imm16, 0|(1<<CGEN_IFLD_SIGN_OPT), 0, 16, 16, 32, total_length, buffer); 631 break; 632 case XSTORMY16_OPERAND_IMM2 : 633 errmsg = insert_normal (cd, fields->f_imm2, 0, 0, 10, 2, 32, total_length, buffer); 634 break; 635 case XSTORMY16_OPERAND_IMM3 : 636 errmsg = insert_normal (cd, fields->f_imm3, 0, 0, 4, 3, 32, total_length, buffer); 637 break; 638 case XSTORMY16_OPERAND_IMM3B : 639 errmsg = insert_normal (cd, fields->f_imm3b, 0, 0, 17, 3, 32, total_length, buffer); 640 break; 641 case XSTORMY16_OPERAND_IMM4 : 642 errmsg = insert_normal (cd, fields->f_imm4, 0, 0, 8, 4, 32, total_length, buffer); 643 break; 644 case XSTORMY16_OPERAND_IMM8 : 645 errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 8, 8, 32, total_length, buffer); 646 break; 647 case XSTORMY16_OPERAND_IMM8SMALL : 648 errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 8, 8, 32, total_length, buffer); 649 break; 650 case XSTORMY16_OPERAND_LMEM8 : 651 errmsg = insert_normal (cd, fields->f_lmem8, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 8, 32, total_length, buffer); 652 break; 653 case XSTORMY16_OPERAND_REL12 : 654 { 655 long value = fields->f_rel12; 656 value = ((value) - (((pc) + (4)))); 657 errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 20, 12, 32, total_length, buffer); 658 } 659 break; 660 case XSTORMY16_OPERAND_REL12A : 661 { 662 long value = fields->f_rel12a; 663 value = ((SI) (((value) - (((pc) + (2))))) >> (1)); 664 errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 4, 11, 32, total_length, buffer); 665 } 666 break; 667 case XSTORMY16_OPERAND_REL8_2 : 668 { 669 long value = fields->f_rel8_2; 670 value = ((value) - (((pc) + (2)))); 671 errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 8, 8, 32, total_length, buffer); 672 } 673 break; 674 case XSTORMY16_OPERAND_REL8_4 : 675 { 676 long value = fields->f_rel8_4; 677 value = ((value) - (((pc) + (4)))); 678 errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 8, 8, 32, total_length, buffer); 679 } 680 break; 681 case XSTORMY16_OPERAND_WS2 : 682 errmsg = insert_normal (cd, fields->f_op2m, 0, 0, 7, 1, 32, total_length, buffer); 683 break; 684 685 default : 686 /* xgettext:c-format */ 687 opcodes_error_handler 688 (_("internal error: unrecognized field %d while building insn"), 689 opindex); 690 abort (); 691 } 692 693 return errmsg; 694} 695 696int xstormy16_cgen_extract_operand 697 (CGEN_CPU_DESC, int, CGEN_EXTRACT_INFO *, CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma); 698 699/* Main entry point for operand extraction. 700 The result is <= 0 for error, >0 for success. 701 ??? Actual values aren't well defined right now. 702 703 This function is basically just a big switch statement. Earlier versions 704 used tables to look up the function to use, but 705 - if the table contains both assembler and disassembler functions then 706 the disassembler contains much of the assembler and vice-versa, 707 - there's a lot of inlining possibilities as things grow, 708 - using a switch statement avoids the function call overhead. 709 710 This function could be moved into `print_insn_normal', but keeping it 711 separate makes clear the interface between `print_insn_normal' and each of 712 the handlers. */ 713 714int 715xstormy16_cgen_extract_operand (CGEN_CPU_DESC cd, 716 int opindex, 717 CGEN_EXTRACT_INFO *ex_info, 718 CGEN_INSN_INT insn_value, 719 CGEN_FIELDS * fields, 720 bfd_vma pc) 721{ 722 /* Assume success (for those operands that are nops). */ 723 int length = 1; 724 unsigned int total_length = CGEN_FIELDS_BITSIZE (fields); 725 726 switch (opindex) 727 { 728 case XSTORMY16_OPERAND_RB : 729 length = extract_normal (cd, ex_info, insn_value, 0, 0, 17, 3, 32, total_length, pc, & fields->f_Rb); 730 break; 731 case XSTORMY16_OPERAND_RBJ : 732 length = extract_normal (cd, ex_info, insn_value, 0, 0, 11, 1, 32, total_length, pc, & fields->f_Rbj); 733 break; 734 case XSTORMY16_OPERAND_RD : 735 length = extract_normal (cd, ex_info, insn_value, 0, 0, 12, 4, 32, total_length, pc, & fields->f_Rd); 736 break; 737 case XSTORMY16_OPERAND_RDM : 738 length = extract_normal (cd, ex_info, insn_value, 0, 0, 13, 3, 32, total_length, pc, & fields->f_Rdm); 739 break; 740 case XSTORMY16_OPERAND_RM : 741 length = extract_normal (cd, ex_info, insn_value, 0, 0, 4, 3, 32, total_length, pc, & fields->f_Rm); 742 break; 743 case XSTORMY16_OPERAND_RS : 744 length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 4, 32, total_length, pc, & fields->f_Rs); 745 break; 746 case XSTORMY16_OPERAND_ABS24 : 747 { 748 length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 8, 32, total_length, pc, & fields->f_abs24_1); 749 if (length <= 0) break; 750 length = extract_normal (cd, ex_info, insn_value, 0, 0, 16, 16, 32, total_length, pc, & fields->f_abs24_2); 751 if (length <= 0) break; 752 FLD (f_abs24) = ((((FLD (f_abs24_2)) << (8))) | (FLD (f_abs24_1))); 753 } 754 break; 755 case XSTORMY16_OPERAND_BCOND2 : 756 length = extract_normal (cd, ex_info, insn_value, 0, 0, 4, 4, 32, total_length, pc, & fields->f_op2); 757 break; 758 case XSTORMY16_OPERAND_BCOND5 : 759 length = extract_normal (cd, ex_info, insn_value, 0, 0, 16, 4, 32, total_length, pc, & fields->f_op5); 760 break; 761 case XSTORMY16_OPERAND_HMEM8 : 762 { 763 long value; 764 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 8, 32, total_length, pc, & value); 765 value = ((value) + (32512)); 766 fields->f_hmem8 = value; 767 } 768 break; 769 case XSTORMY16_OPERAND_IMM12 : 770 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 0, 20, 12, 32, total_length, pc, & fields->f_imm12); 771 break; 772 case XSTORMY16_OPERAND_IMM16 : 773 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGN_OPT), 0, 16, 16, 32, total_length, pc, & fields->f_imm16); 774 break; 775 case XSTORMY16_OPERAND_IMM2 : 776 length = extract_normal (cd, ex_info, insn_value, 0, 0, 10, 2, 32, total_length, pc, & fields->f_imm2); 777 break; 778 case XSTORMY16_OPERAND_IMM3 : 779 length = extract_normal (cd, ex_info, insn_value, 0, 0, 4, 3, 32, total_length, pc, & fields->f_imm3); 780 break; 781 case XSTORMY16_OPERAND_IMM3B : 782 length = extract_normal (cd, ex_info, insn_value, 0, 0, 17, 3, 32, total_length, pc, & fields->f_imm3b); 783 break; 784 case XSTORMY16_OPERAND_IMM4 : 785 length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 4, 32, total_length, pc, & fields->f_imm4); 786 break; 787 case XSTORMY16_OPERAND_IMM8 : 788 length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 8, 32, total_length, pc, & fields->f_imm8); 789 break; 790 case XSTORMY16_OPERAND_IMM8SMALL : 791 length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 8, 32, total_length, pc, & fields->f_imm8); 792 break; 793 case XSTORMY16_OPERAND_LMEM8 : 794 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 8, 32, total_length, pc, & fields->f_lmem8); 795 break; 796 case XSTORMY16_OPERAND_REL12 : 797 { 798 long value; 799 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 20, 12, 32, total_length, pc, & value); 800 value = ((value) + (((pc) + (4)))); 801 fields->f_rel12 = value; 802 } 803 break; 804 case XSTORMY16_OPERAND_REL12A : 805 { 806 long value; 807 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 4, 11, 32, total_length, pc, & value); 808 value = ((((value) * (2))) + (((pc) + (2)))); 809 fields->f_rel12a = value; 810 } 811 break; 812 case XSTORMY16_OPERAND_REL8_2 : 813 { 814 long value; 815 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 8, 8, 32, total_length, pc, & value); 816 value = ((value) + (((pc) + (2)))); 817 fields->f_rel8_2 = value; 818 } 819 break; 820 case XSTORMY16_OPERAND_REL8_4 : 821 { 822 long value; 823 length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 8, 8, 32, total_length, pc, & value); 824 value = ((value) + (((pc) + (4)))); 825 fields->f_rel8_4 = value; 826 } 827 break; 828 case XSTORMY16_OPERAND_WS2 : 829 length = extract_normal (cd, ex_info, insn_value, 0, 0, 7, 1, 32, total_length, pc, & fields->f_op2m); 830 break; 831 832 default : 833 /* xgettext:c-format */ 834 opcodes_error_handler 835 (_("internal error: unrecognized field %d while decoding insn"), 836 opindex); 837 abort (); 838 } 839 840 return length; 841} 842 843cgen_insert_fn * const xstormy16_cgen_insert_handlers[] = 844{ 845 insert_insn_normal, 846}; 847 848cgen_extract_fn * const xstormy16_cgen_extract_handlers[] = 849{ 850 extract_insn_normal, 851}; 852 853int xstormy16_cgen_get_int_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *); 854bfd_vma xstormy16_cgen_get_vma_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *); 855 856/* Getting values from cgen_fields is handled by a collection of functions. 857 They are distinguished by the type of the VALUE argument they return. 858 TODO: floating point, inlining support, remove cases where result type 859 not appropriate. */ 860 861int 862xstormy16_cgen_get_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 863 int opindex, 864 const CGEN_FIELDS * fields) 865{ 866 int value; 867 868 switch (opindex) 869 { 870 case XSTORMY16_OPERAND_RB : 871 value = fields->f_Rb; 872 break; 873 case XSTORMY16_OPERAND_RBJ : 874 value = fields->f_Rbj; 875 break; 876 case XSTORMY16_OPERAND_RD : 877 value = fields->f_Rd; 878 break; 879 case XSTORMY16_OPERAND_RDM : 880 value = fields->f_Rdm; 881 break; 882 case XSTORMY16_OPERAND_RM : 883 value = fields->f_Rm; 884 break; 885 case XSTORMY16_OPERAND_RS : 886 value = fields->f_Rs; 887 break; 888 case XSTORMY16_OPERAND_ABS24 : 889 value = fields->f_abs24; 890 break; 891 case XSTORMY16_OPERAND_BCOND2 : 892 value = fields->f_op2; 893 break; 894 case XSTORMY16_OPERAND_BCOND5 : 895 value = fields->f_op5; 896 break; 897 case XSTORMY16_OPERAND_HMEM8 : 898 value = fields->f_hmem8; 899 break; 900 case XSTORMY16_OPERAND_IMM12 : 901 value = fields->f_imm12; 902 break; 903 case XSTORMY16_OPERAND_IMM16 : 904 value = fields->f_imm16; 905 break; 906 case XSTORMY16_OPERAND_IMM2 : 907 value = fields->f_imm2; 908 break; 909 case XSTORMY16_OPERAND_IMM3 : 910 value = fields->f_imm3; 911 break; 912 case XSTORMY16_OPERAND_IMM3B : 913 value = fields->f_imm3b; 914 break; 915 case XSTORMY16_OPERAND_IMM4 : 916 value = fields->f_imm4; 917 break; 918 case XSTORMY16_OPERAND_IMM8 : 919 value = fields->f_imm8; 920 break; 921 case XSTORMY16_OPERAND_IMM8SMALL : 922 value = fields->f_imm8; 923 break; 924 case XSTORMY16_OPERAND_LMEM8 : 925 value = fields->f_lmem8; 926 break; 927 case XSTORMY16_OPERAND_REL12 : 928 value = fields->f_rel12; 929 break; 930 case XSTORMY16_OPERAND_REL12A : 931 value = fields->f_rel12a; 932 break; 933 case XSTORMY16_OPERAND_REL8_2 : 934 value = fields->f_rel8_2; 935 break; 936 case XSTORMY16_OPERAND_REL8_4 : 937 value = fields->f_rel8_4; 938 break; 939 case XSTORMY16_OPERAND_WS2 : 940 value = fields->f_op2m; 941 break; 942 943 default : 944 /* xgettext:c-format */ 945 opcodes_error_handler 946 (_("internal error: unrecognized field %d while getting int operand"), 947 opindex); 948 abort (); 949 } 950 951 return value; 952} 953 954bfd_vma 955xstormy16_cgen_get_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 956 int opindex, 957 const CGEN_FIELDS * fields) 958{ 959 bfd_vma value; 960 961 switch (opindex) 962 { 963 case XSTORMY16_OPERAND_RB : 964 value = fields->f_Rb; 965 break; 966 case XSTORMY16_OPERAND_RBJ : 967 value = fields->f_Rbj; 968 break; 969 case XSTORMY16_OPERAND_RD : 970 value = fields->f_Rd; 971 break; 972 case XSTORMY16_OPERAND_RDM : 973 value = fields->f_Rdm; 974 break; 975 case XSTORMY16_OPERAND_RM : 976 value = fields->f_Rm; 977 break; 978 case XSTORMY16_OPERAND_RS : 979 value = fields->f_Rs; 980 break; 981 case XSTORMY16_OPERAND_ABS24 : 982 value = fields->f_abs24; 983 break; 984 case XSTORMY16_OPERAND_BCOND2 : 985 value = fields->f_op2; 986 break; 987 case XSTORMY16_OPERAND_BCOND5 : 988 value = fields->f_op5; 989 break; 990 case XSTORMY16_OPERAND_HMEM8 : 991 value = fields->f_hmem8; 992 break; 993 case XSTORMY16_OPERAND_IMM12 : 994 value = fields->f_imm12; 995 break; 996 case XSTORMY16_OPERAND_IMM16 : 997 value = fields->f_imm16; 998 break; 999 case XSTORMY16_OPERAND_IMM2 : 1000 value = fields->f_imm2; 1001 break; 1002 case XSTORMY16_OPERAND_IMM3 : 1003 value = fields->f_imm3; 1004 break; 1005 case XSTORMY16_OPERAND_IMM3B : 1006 value = fields->f_imm3b; 1007 break; 1008 case XSTORMY16_OPERAND_IMM4 : 1009 value = fields->f_imm4; 1010 break; 1011 case XSTORMY16_OPERAND_IMM8 : 1012 value = fields->f_imm8; 1013 break; 1014 case XSTORMY16_OPERAND_IMM8SMALL : 1015 value = fields->f_imm8; 1016 break; 1017 case XSTORMY16_OPERAND_LMEM8 : 1018 value = fields->f_lmem8; 1019 break; 1020 case XSTORMY16_OPERAND_REL12 : 1021 value = fields->f_rel12; 1022 break; 1023 case XSTORMY16_OPERAND_REL12A : 1024 value = fields->f_rel12a; 1025 break; 1026 case XSTORMY16_OPERAND_REL8_2 : 1027 value = fields->f_rel8_2; 1028 break; 1029 case XSTORMY16_OPERAND_REL8_4 : 1030 value = fields->f_rel8_4; 1031 break; 1032 case XSTORMY16_OPERAND_WS2 : 1033 value = fields->f_op2m; 1034 break; 1035 1036 default : 1037 /* xgettext:c-format */ 1038 opcodes_error_handler 1039 (_("internal error: unrecognized field %d while getting vma operand"), 1040 opindex); 1041 abort (); 1042 } 1043 1044 return value; 1045} 1046 1047void xstormy16_cgen_set_int_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, int); 1048void xstormy16_cgen_set_vma_operand (CGEN_CPU_DESC, int, CGEN_FIELDS *, bfd_vma); 1049 1050/* Stuffing values in cgen_fields is handled by a collection of functions. 1051 They are distinguished by the type of the VALUE argument they accept. 1052 TODO: floating point, inlining support, remove cases where argument type 1053 not appropriate. */ 1054 1055void 1056xstormy16_cgen_set_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 1057 int opindex, 1058 CGEN_FIELDS * fields, 1059 int value) 1060{ 1061 switch (opindex) 1062 { 1063 case XSTORMY16_OPERAND_RB : 1064 fields->f_Rb = value; 1065 break; 1066 case XSTORMY16_OPERAND_RBJ : 1067 fields->f_Rbj = value; 1068 break; 1069 case XSTORMY16_OPERAND_RD : 1070 fields->f_Rd = value; 1071 break; 1072 case XSTORMY16_OPERAND_RDM : 1073 fields->f_Rdm = value; 1074 break; 1075 case XSTORMY16_OPERAND_RM : 1076 fields->f_Rm = value; 1077 break; 1078 case XSTORMY16_OPERAND_RS : 1079 fields->f_Rs = value; 1080 break; 1081 case XSTORMY16_OPERAND_ABS24 : 1082 fields->f_abs24 = value; 1083 break; 1084 case XSTORMY16_OPERAND_BCOND2 : 1085 fields->f_op2 = value; 1086 break; 1087 case XSTORMY16_OPERAND_BCOND5 : 1088 fields->f_op5 = value; 1089 break; 1090 case XSTORMY16_OPERAND_HMEM8 : 1091 fields->f_hmem8 = value; 1092 break; 1093 case XSTORMY16_OPERAND_IMM12 : 1094 fields->f_imm12 = value; 1095 break; 1096 case XSTORMY16_OPERAND_IMM16 : 1097 fields->f_imm16 = value; 1098 break; 1099 case XSTORMY16_OPERAND_IMM2 : 1100 fields->f_imm2 = value; 1101 break; 1102 case XSTORMY16_OPERAND_IMM3 : 1103 fields->f_imm3 = value; 1104 break; 1105 case XSTORMY16_OPERAND_IMM3B : 1106 fields->f_imm3b = value; 1107 break; 1108 case XSTORMY16_OPERAND_IMM4 : 1109 fields->f_imm4 = value; 1110 break; 1111 case XSTORMY16_OPERAND_IMM8 : 1112 fields->f_imm8 = value; 1113 break; 1114 case XSTORMY16_OPERAND_IMM8SMALL : 1115 fields->f_imm8 = value; 1116 break; 1117 case XSTORMY16_OPERAND_LMEM8 : 1118 fields->f_lmem8 = value; 1119 break; 1120 case XSTORMY16_OPERAND_REL12 : 1121 fields->f_rel12 = value; 1122 break; 1123 case XSTORMY16_OPERAND_REL12A : 1124 fields->f_rel12a = value; 1125 break; 1126 case XSTORMY16_OPERAND_REL8_2 : 1127 fields->f_rel8_2 = value; 1128 break; 1129 case XSTORMY16_OPERAND_REL8_4 : 1130 fields->f_rel8_4 = value; 1131 break; 1132 case XSTORMY16_OPERAND_WS2 : 1133 fields->f_op2m = value; 1134 break; 1135 1136 default : 1137 /* xgettext:c-format */ 1138 opcodes_error_handler 1139 (_("internal error: unrecognized field %d while setting int operand"), 1140 opindex); 1141 abort (); 1142 } 1143} 1144 1145void 1146xstormy16_cgen_set_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED, 1147 int opindex, 1148 CGEN_FIELDS * fields, 1149 bfd_vma value) 1150{ 1151 switch (opindex) 1152 { 1153 case XSTORMY16_OPERAND_RB : 1154 fields->f_Rb = value; 1155 break; 1156 case XSTORMY16_OPERAND_RBJ : 1157 fields->f_Rbj = value; 1158 break; 1159 case XSTORMY16_OPERAND_RD : 1160 fields->f_Rd = value; 1161 break; 1162 case XSTORMY16_OPERAND_RDM : 1163 fields->f_Rdm = value; 1164 break; 1165 case XSTORMY16_OPERAND_RM : 1166 fields->f_Rm = value; 1167 break; 1168 case XSTORMY16_OPERAND_RS : 1169 fields->f_Rs = value; 1170 break; 1171 case XSTORMY16_OPERAND_ABS24 : 1172 fields->f_abs24 = value; 1173 break; 1174 case XSTORMY16_OPERAND_BCOND2 : 1175 fields->f_op2 = value; 1176 break; 1177 case XSTORMY16_OPERAND_BCOND5 : 1178 fields->f_op5 = value; 1179 break; 1180 case XSTORMY16_OPERAND_HMEM8 : 1181 fields->f_hmem8 = value; 1182 break; 1183 case XSTORMY16_OPERAND_IMM12 : 1184 fields->f_imm12 = value; 1185 break; 1186 case XSTORMY16_OPERAND_IMM16 : 1187 fields->f_imm16 = value; 1188 break; 1189 case XSTORMY16_OPERAND_IMM2 : 1190 fields->f_imm2 = value; 1191 break; 1192 case XSTORMY16_OPERAND_IMM3 : 1193 fields->f_imm3 = value; 1194 break; 1195 case XSTORMY16_OPERAND_IMM3B : 1196 fields->f_imm3b = value; 1197 break; 1198 case XSTORMY16_OPERAND_IMM4 : 1199 fields->f_imm4 = value; 1200 break; 1201 case XSTORMY16_OPERAND_IMM8 : 1202 fields->f_imm8 = value; 1203 break; 1204 case XSTORMY16_OPERAND_IMM8SMALL : 1205 fields->f_imm8 = value; 1206 break; 1207 case XSTORMY16_OPERAND_LMEM8 : 1208 fields->f_lmem8 = value; 1209 break; 1210 case XSTORMY16_OPERAND_REL12 : 1211 fields->f_rel12 = value; 1212 break; 1213 case XSTORMY16_OPERAND_REL12A : 1214 fields->f_rel12a = value; 1215 break; 1216 case XSTORMY16_OPERAND_REL8_2 : 1217 fields->f_rel8_2 = value; 1218 break; 1219 case XSTORMY16_OPERAND_REL8_4 : 1220 fields->f_rel8_4 = value; 1221 break; 1222 case XSTORMY16_OPERAND_WS2 : 1223 fields->f_op2m = value; 1224 break; 1225 1226 default : 1227 /* xgettext:c-format */ 1228 opcodes_error_handler 1229 (_("internal error: unrecognized field %d while setting vma operand"), 1230 opindex); 1231 abort (); 1232 } 1233} 1234 1235/* Function to call before using the instruction builder tables. */ 1236 1237void 1238xstormy16_cgen_init_ibld_table (CGEN_CPU_DESC cd) 1239{ 1240 cd->insert_handlers = & xstormy16_cgen_insert_handlers[0]; 1241 cd->extract_handlers = & xstormy16_cgen_extract_handlers[0]; 1242 1243 cd->insert_operand = xstormy16_cgen_insert_operand; 1244 cd->extract_operand = xstormy16_cgen_extract_operand; 1245 1246 cd->get_int_operand = xstormy16_cgen_get_int_operand; 1247 cd->set_int_operand = xstormy16_cgen_set_int_operand; 1248 cd->get_vma_operand = xstormy16_cgen_get_vma_operand; 1249 cd->set_vma_operand = xstormy16_cgen_set_vma_operand; 1250} 1251