opcodes/xstormy16-ibld.c

   1 /* Instruction building/extraction support for xstormy16. -*- 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 1996, 1997, 1998, 1999, 2000, 2001, 2005, 2006, 2007,
   7    2008, 2010  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
  48 static 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);
  51 static const char * insert_insn_normal
  52   (CGEN_CPU_DESC, const CGEN_INSN *,
  53    CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma);
  54 static 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 *);
  58 static 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
  62 static 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
  66 static CGEN_INLINE void insert_1
  67   (CGEN_CPU_DESC, unsigned long, int, int, int, unsigned char *);
  68 static CGEN_INLINE int fill_cache
  69   (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *,  int, int, bfd_vma);
  70 static CGEN_INLINE long extract_1
  71   (CGEN_CPU_DESC, CGEN_EXTRACT_INFO *, int, int, int, unsigned char *, bfd_vma);
  72 #endif
  73 \f
  74 /* Operand insertion.  */
  75
  76 #if ! CGEN_INT_INSN_P
  77
  78 /* Subroutine of insert_normal.  */
  79
  80 static CGEN_INLINE void
  81 insert_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);
  92
  93   /* Written this way to avoid undefined behaviour.  */
  94   mask = (((1L << (length - 1)) - 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);
 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
 122 static const char *
 123 insert_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   /* Written this way to avoid undefined behaviour.  */
 135   unsigned long mask = (((1L << (length - 1)) - 1) << 1) | 1;
 136
 137   /* If LENGTH is zero, this operand doesn't contribute to the value.  */
 138   if (length == 0)
 139     return NULL;
 140
 141   if (word_length > 8 * sizeof (CGEN_INSN_INT))
 142     abort ();
 143
 144   /* For architectures with insns smaller than the base-insn-bitsize,
 145      word_length may be too big.  */
 146   if (cd->min_insn_bitsize < cd->base_insn_bitsize)
 147     {
 148       if (word_offset == 0
 149           && word_length > total_length)
 150         word_length = total_length;
 151     }
 152
 153   /* Ensure VALUE will fit.  */
 154   if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGN_OPT))
 155     {
 156       long minval = - (1L << (length - 1));
 157       unsigned long maxval = mask;
 158
 159       if ((value > 0 && (unsigned long) value > maxval)
 160           || value < minval)
 161         {
 162           /* xgettext:c-format */
 163           sprintf (errbuf,
 164                    _("operand out of range (%ld not between %ld and %lu)"),
 165                    value, minval, maxval);
 166           return errbuf;
 167         }
 168     }
 169   else if (! CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED))
 170     {
 171       unsigned long maxval = mask;
 172       unsigned long val = (unsigned long) value;
 173
 174       /* For hosts with a word size > 32 check to see if value has been sign
 175          extended beyond 32 bits.  If so then ignore these higher sign bits
 176          as the user is attempting to store a 32-bit signed value into an
 177          unsigned 32-bit field which is allowed.  */
 178       if (sizeof (unsigned long) > 4 && ((value >> 32) == -1))
 179         val &= 0xFFFFFFFF;
 180
 181       if (val > maxval)
 182         {
 183           /* xgettext:c-format */
 184           sprintf (errbuf,
 185                    _("operand out of range (0x%lx not between 0 and 0x%lx)"),
 186                    val, maxval);
 187           return errbuf;
 188         }
 189     }
 190   else
 191     {
 192       if (! cgen_signed_overflow_ok_p (cd))
 193         {
 194           long minval = - (1L << (length - 1));
 195           long maxval =   (1L << (length - 1)) - 1;
 196
 197           if (value < minval || value > maxval)
 198             {
 199               sprintf
 200                 /* xgettext:c-format */
 201                 (errbuf, _("operand out of range (%ld not between %ld and %ld)"),
 202                  value, minval, maxval);
 203               return errbuf;
 204             }
 205         }
 206     }
 207
 208 #if CGEN_INT_INSN_P
 209
 210   {
 211     int shift;
 212
 213     if (CGEN_INSN_LSB0_P)
 214       shift = (word_offset + start + 1) - length;
 215     else
 216       shift = total_length - (word_offset + start + length);
 217     *buffer = (*buffer & ~(mask << shift)) | ((value & mask) << shift);
 218   }
 219
 220 #else /* ! CGEN_INT_INSN_P */
 221
 222   {
 223     unsigned char *bufp = (unsigned char *) buffer + word_offset / 8;
 224
 225     insert_1 (cd, value, start, length, word_length, bufp);
 226   }
 227
 228 #endif /* ! CGEN_INT_INSN_P */
 229
 230   return NULL;
 231 }
 232
 233 /* Default insn builder (insert handler).
 234    The instruction is recorded in CGEN_INT_INSN_P byte order (meaning
 235    that if CGEN_INSN_BYTES_PTR is an int * and thus, the value is
 236    recorded in host byte order, otherwise BUFFER is an array of bytes
 237    and the value is recorded in target byte order).
 238    The result is an error message or NULL if success.  */
 239
 240 static const char *
 241 insert_insn_normal (CGEN_CPU_DESC cd,
 242                     const CGEN_INSN * insn,
 243                     CGEN_FIELDS * fields,
 244                     CGEN_INSN_BYTES_PTR buffer,
 245                     bfd_vma pc)
 246 {
 247   const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
 248   unsigned long value;
 249   const CGEN_SYNTAX_CHAR_TYPE * syn;
 250
 251   CGEN_INIT_INSERT (cd);
 252   value = CGEN_INSN_BASE_VALUE (insn);
 253
 254   /* If we're recording insns as numbers (rather than a string of bytes),
 255      target byte order handling is deferred until later.  */
 256
 257 #if CGEN_INT_INSN_P
 258
 259   put_insn_int_value (cd, buffer, cd->base_insn_bitsize,
 260                       CGEN_FIELDS_BITSIZE (fields), value);
 261
 262 #else
 263
 264   cgen_put_insn_value (cd, buffer, min ((unsigned) cd->base_insn_bitsize,
 265                                         (unsigned) CGEN_FIELDS_BITSIZE (fields)),
 266                        value);
 267
 268 #endif /* ! CGEN_INT_INSN_P */
 269
 270   /* ??? It would be better to scan the format's fields.
 271      Still need to be able to insert a value based on the operand though;
 272      e.g. storing a branch displacement that got resolved later.
 273      Needs more thought first.  */
 274
 275   for (syn = CGEN_SYNTAX_STRING (syntax); * syn; ++ syn)
 276     {
 277       const char *errmsg;
 278
 279       if (CGEN_SYNTAX_CHAR_P (* syn))
 280         continue;
 281
 282       errmsg = (* cd->insert_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
 283                                        fields, buffer, pc);
 284       if (errmsg)
 285         return errmsg;
 286     }
 287
 288   return NULL;
 289 }
 290
 291 #if CGEN_INT_INSN_P
 292 /* Cover function to store an insn value into an integral insn.  Must go here
 293    because it needs <prefix>-desc.h for CGEN_INT_INSN_P.  */
 294
 295 static void
 296 put_insn_int_value (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 297                     CGEN_INSN_BYTES_PTR buf,
 298                     int length,
 299                     int insn_length,
 300                     CGEN_INSN_INT value)
 301 {
 302   /* For architectures with insns smaller than the base-insn-bitsize,
 303      length may be too big.  */
 304   if (length > insn_length)
 305     *buf = value;
 306   else
 307     {
 308       int shift = insn_length - length;
 309       /* Written this way to avoid undefined behaviour.  */
 310       CGEN_INSN_INT mask = (((1L << (length - 1)) - 1) << 1) | 1;
 311
 312       *buf = (*buf & ~(mask << shift)) | ((value & mask) << shift);
 313     }
 314 }
 315 #endif
 316 \f
 317 /* Operand extraction.  */
 318
 319 #if ! CGEN_INT_INSN_P
 320
 321 /* Subroutine of extract_normal.
 322    Ensure sufficient bytes are cached in EX_INFO.
 323    OFFSET is the offset in bytes from the start of the insn of the value.
 324    BYTES is the length of the needed value.
 325    Returns 1 for success, 0 for failure.  */
 326
 327 static CGEN_INLINE int
 328 fill_cache (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 329             CGEN_EXTRACT_INFO *ex_info,
 330             int offset,
 331             int bytes,
 332             bfd_vma pc)
 333 {
 334   /* It's doubtful that the middle part has already been fetched so
 335      we don't optimize that case.  kiss.  */
 336   unsigned int mask;
 337   disassemble_info *info = (disassemble_info *) ex_info->dis_info;
 338
 339   /* First do a quick check.  */
 340   mask = (1 << bytes) - 1;
 341   if (((ex_info->valid >> offset) & mask) == mask)
 342     return 1;
 343
 344   /* Search for the first byte we need to read.  */
 345   for (mask = 1 << offset; bytes > 0; --bytes, ++offset, mask <<= 1)
 346     if (! (mask & ex_info->valid))
 347       break;
 348
 349   if (bytes)
 350     {
 351       int status;
 352
 353       pc += offset;
 354       status = (*info->read_memory_func)
 355         (pc, ex_info->insn_bytes + offset, bytes, info);
 356
 357       if (status != 0)
 358         {
 359           (*info->memory_error_func) (status, pc, info);
 360           return 0;
 361         }
 362
 363       ex_info->valid |= ((1 << bytes) - 1) << offset;
 364     }
 365
 366   return 1;
 367 }
 368
 369 /* Subroutine of extract_normal.  */
 370
 371 static CGEN_INLINE long
 372 extract_1 (CGEN_CPU_DESC cd,
 373            CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
 374            int start,
 375            int length,
 376            int word_length,
 377            unsigned char *bufp,
 378            bfd_vma pc ATTRIBUTE_UNUSED)
 379 {
 380   unsigned long x;
 381   int shift;
 382
 383   x = cgen_get_insn_value (cd, bufp, word_length);
 384
 385   if (CGEN_INSN_LSB0_P)
 386     shift = (start + 1) - length;
 387   else
 388     shift = (word_length - (start + length));
 389   return x >> shift;
 390 }
 391
 392 #endif /* ! CGEN_INT_INSN_P */
 393
 394 /* Default extraction routine.
 395
 396    INSN_VALUE is the first base_insn_bitsize bits of the insn in host order,
 397    or sometimes less for cases like the m32r where the base insn size is 32
 398    but some insns are 16 bits.
 399    ATTRS is a mask of the boolean attributes.  We only need `SIGNED',
 400    but for generality we take a bitmask of all of them.
 401    WORD_OFFSET is the offset in bits from the start of the insn of the value.
 402    WORD_LENGTH is the length of the word in bits in which the value resides.
 403    START is the starting bit number in the word, architecture origin.
 404    LENGTH is the length of VALUE in bits.
 405    TOTAL_LENGTH is the total length of the insn in bits.
 406
 407    Returns 1 for success, 0 for failure.  */
 408
 409 /* ??? The return code isn't properly used.  wip.  */
 410
 411 /* ??? This doesn't handle bfd_vma's.  Create another function when
 412    necessary.  */
 413
 414 static int
 415 extract_normal (CGEN_CPU_DESC cd,
 416 #if ! CGEN_INT_INSN_P
 417                 CGEN_EXTRACT_INFO *ex_info,
 418 #else
 419                 CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
 420 #endif
 421                 CGEN_INSN_INT insn_value,
 422                 unsigned int attrs,
 423                 unsigned int word_offset,
 424                 unsigned int start,
 425                 unsigned int length,
 426                 unsigned int word_length,
 427                 unsigned int total_length,
 428 #if ! CGEN_INT_INSN_P
 429                 bfd_vma pc,
 430 #else
 431                 bfd_vma pc ATTRIBUTE_UNUSED,
 432 #endif
 433                 long *valuep)
 434 {
 435   long value, mask;
 436
 437   /* If LENGTH is zero, this operand doesn't contribute to the value
 438      so give it a standard value of zero.  */
 439   if (length == 0)
 440     {
 441       *valuep = 0;
 442       return 1;
 443     }
 444
 445   if (word_length > 8 * sizeof (CGEN_INSN_INT))
 446     abort ();
 447
 448   /* For architectures with insns smaller than the insn-base-bitsize,
 449      word_length may be too big.  */
 450   if (cd->min_insn_bitsize < cd->base_insn_bitsize)
 451     {
 452       if (word_offset + word_length > total_length)
 453         word_length = total_length - word_offset;
 454     }
 455
 456   /* Does the value reside in INSN_VALUE, and at the right alignment?  */
 457
 458   if (CGEN_INT_INSN_P || (word_offset == 0 && word_length == total_length))
 459     {
 460       if (CGEN_INSN_LSB0_P)
 461         value = insn_value >> ((word_offset + start + 1) - length);
 462       else
 463         value = insn_value >> (total_length - ( word_offset + start + length));
 464     }
 465
 466 #if ! CGEN_INT_INSN_P
 467
 468   else
 469     {
 470       unsigned char *bufp = ex_info->insn_bytes + word_offset / 8;
 471
 472       if (word_length > 8 * sizeof (CGEN_INSN_INT))
 473         abort ();
 474
 475       if (fill_cache (cd, ex_info, word_offset / 8, word_length / 8, pc) == 0)
 476         return 0;
 477
 478       value = extract_1 (cd, ex_info, start, length, word_length, bufp, pc);
 479     }
 480
 481 #endif /* ! CGEN_INT_INSN_P */
 482
 483   /* Written this way to avoid undefined behaviour.  */
 484   mask = (((1L << (length - 1)) - 1) << 1) | 1;
 485
 486   value &= mask;
 487   /* sign extend? */
 488   if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED)
 489       && (value & (1L << (length - 1))))
 490     value |= ~mask;
 491
 492   *valuep = value;
 493
 494   return 1;
 495 }
 496
 497 /* Default insn extractor.
 498
 499    INSN_VALUE is the first base_insn_bitsize bits, translated to host order.
 500    The extracted fields are stored in FIELDS.
 501    EX_INFO is used to handle reading variable length insns.
 502    Return the length of the insn in bits, or 0 if no match,
 503    or -1 if an error occurs fetching data (memory_error_func will have
 504    been called).  */
 505
 506 static int
 507 extract_insn_normal (CGEN_CPU_DESC cd,
 508                      const CGEN_INSN *insn,
 509                      CGEN_EXTRACT_INFO *ex_info,
 510                      CGEN_INSN_INT insn_value,
 511                      CGEN_FIELDS *fields,
 512                      bfd_vma pc)
 513 {
 514   const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
 515   const CGEN_SYNTAX_CHAR_TYPE *syn;
 516
 517   CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
 518
 519   CGEN_INIT_EXTRACT (cd);
 520
 521   for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
 522     {
 523       int length;
 524
 525       if (CGEN_SYNTAX_CHAR_P (*syn))
 526         continue;
 527
 528       length = (* cd->extract_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
 529                                         ex_info, insn_value, fields, pc);
 530       if (length <= 0)
 531         return length;
 532     }
 533
 534   /* We recognized and successfully extracted this insn.  */
 535   return CGEN_INSN_BITSIZE (insn);
 536 }
 537 \f
 538 /* Machine generated code added here.  */
 539
 540 const char * xstormy16_cgen_insert_operand
 541   (CGEN_CPU_DESC, int, CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma);
 542
 543 /* Main entry point for operand insertion.
 544
 545    This function is basically just a big switch statement.  Earlier versions
 546    used tables to look up the function to use, but
 547    - if the table contains both assembler and disassembler functions then
 548      the disassembler contains much of the assembler and vice-versa,
 549    - there's a lot of inlining possibilities as things grow,
 550    - using a switch statement avoids the function call overhead.
 551
 552    This function could be moved into `parse_insn_normal', but keeping it
 553    separate makes clear the interface between `parse_insn_normal' and each of
 554    the handlers.  It's also needed by GAS to insert operands that couldn't be
 555    resolved during parsing.  */
 556
 557 const char *
 558 xstormy16_cgen_insert_operand (CGEN_CPU_DESC cd,
 559                              int opindex,
 560                              CGEN_FIELDS * fields,
 561                              CGEN_INSN_BYTES_PTR buffer,
 562                              bfd_vma pc ATTRIBUTE_UNUSED)
 563 {
 564   const char * errmsg = NULL;
 565   unsigned int total_length = CGEN_FIELDS_BITSIZE (fields);
 566
 567   switch (opindex)
 568     {
 569     case XSTORMY16_OPERAND_RB :
 570       errmsg = insert_normal (cd, fields->f_Rb, 0, 0, 17, 3, 32, total_length, buffer);
 571       break;
 572     case XSTORMY16_OPERAND_RBJ :
 573       errmsg = insert_normal (cd, fields->f_Rbj, 0, 0, 11, 1, 32, total_length, buffer);
 574       break;
 575     case XSTORMY16_OPERAND_RD :
 576       errmsg = insert_normal (cd, fields->f_Rd, 0, 0, 12, 4, 32, total_length, buffer);
 577       break;
 578     case XSTORMY16_OPERAND_RDM :
 579       errmsg = insert_normal (cd, fields->f_Rdm, 0, 0, 13, 3, 32, total_length, buffer);
 580       break;
 581     case XSTORMY16_OPERAND_RM :
 582       errmsg = insert_normal (cd, fields->f_Rm, 0, 0, 4, 3, 32, total_length, buffer);
 583       break;
 584     case XSTORMY16_OPERAND_RS :
 585       errmsg = insert_normal (cd, fields->f_Rs, 0, 0, 8, 4, 32, total_length, buffer);
 586       break;
 587     case XSTORMY16_OPERAND_ABS24 :
 588       {
 589 {
 590   FLD (f_abs24_1) = ((FLD (f_abs24)) & (255));
 591   FLD (f_abs24_2) = ((UINT) (FLD (f_abs24)) >> (8));
 592 }
 593         errmsg = insert_normal (cd, fields->f_abs24_1, 0, 0, 8, 8, 32, total_length, buffer);
 594         if (errmsg)
 595           break;
 596         errmsg = insert_normal (cd, fields->f_abs24_2, 0, 0, 16, 16, 32, total_length, buffer);
 597         if (errmsg)
 598           break;
 599       }
 600       break;
 601     case XSTORMY16_OPERAND_BCOND2 :
 602       errmsg = insert_normal (cd, fields->f_op2, 0, 0, 4, 4, 32, total_length, buffer);
 603       break;
 604     case XSTORMY16_OPERAND_BCOND5 :
 605       errmsg = insert_normal (cd, fields->f_op5, 0, 0, 16, 4, 32, total_length, buffer);
 606       break;
 607     case XSTORMY16_OPERAND_HMEM8 :
 608       {
 609         long value = fields->f_hmem8;
 610         value = ((value) - (32512));
 611         errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 8, 32, total_length, buffer);
 612       }
 613       break;
 614     case XSTORMY16_OPERAND_IMM12 :
 615       errmsg = insert_normal (cd, fields->f_imm12, 0|(1<<CGEN_IFLD_SIGNED), 0, 20, 12, 32, total_length, buffer);
 616       break;
 617     case XSTORMY16_OPERAND_IMM16 :
 618       errmsg = insert_normal (cd, fields->f_imm16, 0|(1<<CGEN_IFLD_SIGN_OPT), 0, 16, 16, 32, total_length, buffer);
 619       break;
 620     case XSTORMY16_OPERAND_IMM2 :
 621       errmsg = insert_normal (cd, fields->f_imm2, 0, 0, 10, 2, 32, total_length, buffer);
 622       break;
 623     case XSTORMY16_OPERAND_IMM3 :
 624       errmsg = insert_normal (cd, fields->f_imm3, 0, 0, 4, 3, 32, total_length, buffer);
 625       break;
 626     case XSTORMY16_OPERAND_IMM3B :
 627       errmsg = insert_normal (cd, fields->f_imm3b, 0, 0, 17, 3, 32, total_length, buffer);
 628       break;
 629     case XSTORMY16_OPERAND_IMM4 :
 630       errmsg = insert_normal (cd, fields->f_imm4, 0, 0, 8, 4, 32, total_length, buffer);
 631       break;
 632     case XSTORMY16_OPERAND_IMM8 :
 633       errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 8, 8, 32, total_length, buffer);
 634       break;
 635     case XSTORMY16_OPERAND_IMM8SMALL :
 636       errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 8, 8, 32, total_length, buffer);
 637       break;
 638     case XSTORMY16_OPERAND_LMEM8 :
 639       errmsg = insert_normal (cd, fields->f_lmem8, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 8, 32, total_length, buffer);
 640       break;
 641     case XSTORMY16_OPERAND_REL12 :
 642       {
 643         long value = fields->f_rel12;
 644         value = ((value) - (((pc) + (4))));
 645         errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 20, 12, 32, total_length, buffer);
 646       }
 647       break;
 648     case XSTORMY16_OPERAND_REL12A :
 649       {
 650         long value = fields->f_rel12a;
 651         value = ((SI) (((value) - (((pc) + (2))))) >> (1));
 652         errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 4, 11, 32, total_length, buffer);
 653       }
 654       break;
 655     case XSTORMY16_OPERAND_REL8_2 :
 656       {
 657         long value = fields->f_rel8_2;
 658         value = ((value) - (((pc) + (2))));
 659         errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 8, 8, 32, total_length, buffer);
 660       }
 661       break;
 662     case XSTORMY16_OPERAND_REL8_4 :
 663       {
 664         long value = fields->f_rel8_4;
 665         value = ((value) - (((pc) + (4))));
 666         errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 8, 8, 32, total_length, buffer);
 667       }
 668       break;
 669     case XSTORMY16_OPERAND_WS2 :
 670       errmsg = insert_normal (cd, fields->f_op2m, 0, 0, 7, 1, 32, total_length, buffer);
 671       break;
 672
 673     default :
 674       /* xgettext:c-format */
 675       fprintf (stderr, _("Unrecognized field %d while building insn.\n"),
 676                opindex);
 677       abort ();
 678   }
 679
 680   return errmsg;
 681 }
 682
 683 int xstormy16_cgen_extract_operand
 684   (CGEN_CPU_DESC, int, CGEN_EXTRACT_INFO *, CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma);
 685
 686 /* Main entry point for operand extraction.
 687    The result is <= 0 for error, >0 for success.
 688    ??? Actual values aren't well defined right now.
 689
 690    This function is basically just a big switch statement.  Earlier versions
 691    used tables to look up the function to use, but
 692    - if the table contains both assembler and disassembler functions then
 693      the disassembler contains much of the assembler and vice-versa,
 694    - there's a lot of inlining possibilities as things grow,
 695    - using a switch statement avoids the function call overhead.
 696
 697    This function could be moved into `print_insn_normal', but keeping it
 698    separate makes clear the interface between `print_insn_normal' and each of
 699    the handlers.  */
 700
 701 int
 702 xstormy16_cgen_extract_operand (CGEN_CPU_DESC cd,
 703                              int opindex,
 704                              CGEN_EXTRACT_INFO *ex_info,
 705                              CGEN_INSN_INT insn_value,
 706                              CGEN_FIELDS * fields,
 707                              bfd_vma pc)
 708 {
 709   /* Assume success (for those operands that are nops).  */
 710   int length = 1;
 711   unsigned int total_length = CGEN_FIELDS_BITSIZE (fields);
 712
 713   switch (opindex)
 714     {
 715     case XSTORMY16_OPERAND_RB :
 716       length = extract_normal (cd, ex_info, insn_value, 0, 0, 17, 3, 32, total_length, pc, & fields->f_Rb);
 717       break;
 718     case XSTORMY16_OPERAND_RBJ :
 719       length = extract_normal (cd, ex_info, insn_value, 0, 0, 11, 1, 32, total_length, pc, & fields->f_Rbj);
 720       break;
 721     case XSTORMY16_OPERAND_RD :
 722       length = extract_normal (cd, ex_info, insn_value, 0, 0, 12, 4, 32, total_length, pc, & fields->f_Rd);
 723       break;
 724     case XSTORMY16_OPERAND_RDM :
 725       length = extract_normal (cd, ex_info, insn_value, 0, 0, 13, 3, 32, total_length, pc, & fields->f_Rdm);
 726       break;
 727     case XSTORMY16_OPERAND_RM :
 728       length = extract_normal (cd, ex_info, insn_value, 0, 0, 4, 3, 32, total_length, pc, & fields->f_Rm);
 729       break;
 730     case XSTORMY16_OPERAND_RS :
 731       length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 4, 32, total_length, pc, & fields->f_Rs);
 732       break;
 733     case XSTORMY16_OPERAND_ABS24 :
 734       {
 735         length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 8, 32, total_length, pc, & fields->f_abs24_1);
 736         if (length <= 0) break;
 737         length = extract_normal (cd, ex_info, insn_value, 0, 0, 16, 16, 32, total_length, pc, & fields->f_abs24_2);
 738         if (length <= 0) break;
 739   FLD (f_abs24) = ((((FLD (f_abs24_2)) << (8))) | (FLD (f_abs24_1)));
 740       }
 741       break;
 742     case XSTORMY16_OPERAND_BCOND2 :
 743       length = extract_normal (cd, ex_info, insn_value, 0, 0, 4, 4, 32, total_length, pc, & fields->f_op2);
 744       break;
 745     case XSTORMY16_OPERAND_BCOND5 :
 746       length = extract_normal (cd, ex_info, insn_value, 0, 0, 16, 4, 32, total_length, pc, & fields->f_op5);
 747       break;
 748     case XSTORMY16_OPERAND_HMEM8 :
 749       {
 750         long value;
 751         length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 8, 32, total_length, pc, & value);
 752         value = ((value) + (32512));
 753         fields->f_hmem8 = value;
 754       }
 755       break;
 756     case XSTORMY16_OPERAND_IMM12 :
 757       length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 0, 20, 12, 32, total_length, pc, & fields->f_imm12);
 758       break;
 759     case XSTORMY16_OPERAND_IMM16 :
 760       length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGN_OPT), 0, 16, 16, 32, total_length, pc, & fields->f_imm16);
 761       break;
 762     case XSTORMY16_OPERAND_IMM2 :
 763       length = extract_normal (cd, ex_info, insn_value, 0, 0, 10, 2, 32, total_length, pc, & fields->f_imm2);
 764       break;
 765     case XSTORMY16_OPERAND_IMM3 :
 766       length = extract_normal (cd, ex_info, insn_value, 0, 0, 4, 3, 32, total_length, pc, & fields->f_imm3);
 767       break;
 768     case XSTORMY16_OPERAND_IMM3B :
 769       length = extract_normal (cd, ex_info, insn_value, 0, 0, 17, 3, 32, total_length, pc, & fields->f_imm3b);
 770       break;
 771     case XSTORMY16_OPERAND_IMM4 :
 772       length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 4, 32, total_length, pc, & fields->f_imm4);
 773       break;
 774     case XSTORMY16_OPERAND_IMM8 :
 775       length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 8, 32, total_length, pc, & fields->f_imm8);
 776       break;
 777     case XSTORMY16_OPERAND_IMM8SMALL :
 778       length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 8, 32, total_length, pc, & fields->f_imm8);
 779       break;
 780     case XSTORMY16_OPERAND_LMEM8 :
 781       length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 8, 32, total_length, pc, & fields->f_lmem8);
 782       break;
 783     case XSTORMY16_OPERAND_REL12 :
 784       {
 785         long value;
 786         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);
 787         value = ((value) + (((pc) + (4))));
 788         fields->f_rel12 = value;
 789       }
 790       break;
 791     case XSTORMY16_OPERAND_REL12A :
 792       {
 793         long value;
 794         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);
 795         value = ((((value) << (1))) + (((pc) + (2))));
 796         fields->f_rel12a = value;
 797       }
 798       break;
 799     case XSTORMY16_OPERAND_REL8_2 :
 800       {
 801         long value;
 802         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);
 803         value = ((value) + (((pc) + (2))));
 804         fields->f_rel8_2 = value;
 805       }
 806       break;
 807     case XSTORMY16_OPERAND_REL8_4 :
 808       {
 809         long value;
 810         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);
 811         value = ((value) + (((pc) + (4))));
 812         fields->f_rel8_4 = value;
 813       }
 814       break;
 815     case XSTORMY16_OPERAND_WS2 :
 816       length = extract_normal (cd, ex_info, insn_value, 0, 0, 7, 1, 32, total_length, pc, & fields->f_op2m);
 817       break;
 818
 819     default :
 820       /* xgettext:c-format */
 821       fprintf (stderr, _("Unrecognized field %d while decoding insn.\n"),
 822                opindex);
 823       abort ();
 824     }
 825
 826   return length;
 827 }
 828
 829 cgen_insert_fn * const xstormy16_cgen_insert_handlers[] =
 830 {
 831   insert_insn_normal,
 832 };
 833
 834 cgen_extract_fn * const xstormy16_cgen_extract_handlers[] =
 835 {
 836   extract_insn_normal,
 837 };
 838
 839 int xstormy16_cgen_get_int_operand     (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
 840 bfd_vma xstormy16_cgen_get_vma_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
 841
 842 /* Getting values from cgen_fields is handled by a collection of functions.
 843    They are distinguished by the type of the VALUE argument they return.
 844    TODO: floating point, inlining support, remove cases where result type
 845    not appropriate.  */
 846
 847 int
 848 xstormy16_cgen_get_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 849                              int opindex,
 850                              const CGEN_FIELDS * fields)
 851 {
 852   int value;
 853
 854   switch (opindex)
 855     {
 856     case XSTORMY16_OPERAND_RB :
 857       value = fields->f_Rb;
 858       break;
 859     case XSTORMY16_OPERAND_RBJ :
 860       value = fields->f_Rbj;
 861       break;
 862     case XSTORMY16_OPERAND_RD :
 863       value = fields->f_Rd;
 864       break;
 865     case XSTORMY16_OPERAND_RDM :
 866       value = fields->f_Rdm;
 867       break;
 868     case XSTORMY16_OPERAND_RM :
 869       value = fields->f_Rm;
 870       break;
 871     case XSTORMY16_OPERAND_RS :
 872       value = fields->f_Rs;
 873       break;
 874     case XSTORMY16_OPERAND_ABS24 :
 875       value = fields->f_abs24;
 876       break;
 877     case XSTORMY16_OPERAND_BCOND2 :
 878       value = fields->f_op2;
 879       break;
 880     case XSTORMY16_OPERAND_BCOND5 :
 881       value = fields->f_op5;
 882       break;
 883     case XSTORMY16_OPERAND_HMEM8 :
 884       value = fields->f_hmem8;
 885       break;
 886     case XSTORMY16_OPERAND_IMM12 :
 887       value = fields->f_imm12;
 888       break;
 889     case XSTORMY16_OPERAND_IMM16 :
 890       value = fields->f_imm16;
 891       break;
 892     case XSTORMY16_OPERAND_IMM2 :
 893       value = fields->f_imm2;
 894       break;
 895     case XSTORMY16_OPERAND_IMM3 :
 896       value = fields->f_imm3;
 897       break;
 898     case XSTORMY16_OPERAND_IMM3B :
 899       value = fields->f_imm3b;
 900       break;
 901     case XSTORMY16_OPERAND_IMM4 :
 902       value = fields->f_imm4;
 903       break;
 904     case XSTORMY16_OPERAND_IMM8 :
 905       value = fields->f_imm8;
 906       break;
 907     case XSTORMY16_OPERAND_IMM8SMALL :
 908       value = fields->f_imm8;
 909       break;
 910     case XSTORMY16_OPERAND_LMEM8 :
 911       value = fields->f_lmem8;
 912       break;
 913     case XSTORMY16_OPERAND_REL12 :
 914       value = fields->f_rel12;
 915       break;
 916     case XSTORMY16_OPERAND_REL12A :
 917       value = fields->f_rel12a;
 918       break;
 919     case XSTORMY16_OPERAND_REL8_2 :
 920       value = fields->f_rel8_2;
 921       break;
 922     case XSTORMY16_OPERAND_REL8_4 :
 923       value = fields->f_rel8_4;
 924       break;
 925     case XSTORMY16_OPERAND_WS2 :
 926       value = fields->f_op2m;
 927       break;
 928
 929     default :
 930       /* xgettext:c-format */
 931       fprintf (stderr, _("Unrecognized field %d while getting int operand.\n"),
 932                        opindex);
 933       abort ();
 934   }
 935
 936   return value;
 937 }
 938
 939 bfd_vma
 940 xstormy16_cgen_get_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 941                              int opindex,
 942                              const CGEN_FIELDS * fields)
 943 {
 944   bfd_vma value;
 945
 946   switch (opindex)
 947     {
 948     case XSTORMY16_OPERAND_RB :
 949       value = fields->f_Rb;
 950       break;
 951     case XSTORMY16_OPERAND_RBJ :
 952       value = fields->f_Rbj;
 953       break;
 954     case XSTORMY16_OPERAND_RD :
 955       value = fields->f_Rd;
 956       break;
 957     case XSTORMY16_OPERAND_RDM :
 958       value = fields->f_Rdm;
 959       break;
 960     case XSTORMY16_OPERAND_RM :
 961       value = fields->f_Rm;
 962       break;
 963     case XSTORMY16_OPERAND_RS :
 964       value = fields->f_Rs;
 965       break;
 966     case XSTORMY16_OPERAND_ABS24 :
 967       value = fields->f_abs24;
 968       break;
 969     case XSTORMY16_OPERAND_BCOND2 :
 970       value = fields->f_op2;
 971       break;
 972     case XSTORMY16_OPERAND_BCOND5 :
 973       value = fields->f_op5;
 974       break;
 975     case XSTORMY16_OPERAND_HMEM8 :
 976       value = fields->f_hmem8;
 977       break;
 978     case XSTORMY16_OPERAND_IMM12 :
 979       value = fields->f_imm12;
 980       break;
 981     case XSTORMY16_OPERAND_IMM16 :
 982       value = fields->f_imm16;
 983       break;
 984     case XSTORMY16_OPERAND_IMM2 :
 985       value = fields->f_imm2;
 986       break;
 987     case XSTORMY16_OPERAND_IMM3 :
 988       value = fields->f_imm3;
 989       break;
 990     case XSTORMY16_OPERAND_IMM3B :
 991       value = fields->f_imm3b;
 992       break;
 993     case XSTORMY16_OPERAND_IMM4 :
 994       value = fields->f_imm4;
 995       break;
 996     case XSTORMY16_OPERAND_IMM8 :
 997       value = fields->f_imm8;
 998       break;
 999     case XSTORMY16_OPERAND_IMM8SMALL :
1000       value = fields->f_imm8;
1001       break;
1002     case XSTORMY16_OPERAND_LMEM8 :
1003       value = fields->f_lmem8;
1004       break;
1005     case XSTORMY16_OPERAND_REL12 :
1006       value = fields->f_rel12;
1007       break;
1008     case XSTORMY16_OPERAND_REL12A :
1009       value = fields->f_rel12a;
1010       break;
1011     case XSTORMY16_OPERAND_REL8_2 :
1012       value = fields->f_rel8_2;
1013       break;
1014     case XSTORMY16_OPERAND_REL8_4 :
1015       value = fields->f_rel8_4;
1016       break;
1017     case XSTORMY16_OPERAND_WS2 :
1018       value = fields->f_op2m;
1019       break;
1020
1021     default :
1022       /* xgettext:c-format */
1023       fprintf (stderr, _("Unrecognized field %d while getting vma operand.\n"),
1024                        opindex);
1025       abort ();
1026   }
1027
1028   return value;
1029 }
1030
1031 void xstormy16_cgen_set_int_operand  (CGEN_CPU_DESC, int, CGEN_FIELDS *, int);
1032 void xstormy16_cgen_set_vma_operand  (CGEN_CPU_DESC, int, CGEN_FIELDS *, bfd_vma);
1033
1034 /* Stuffing values in cgen_fields is handled by a collection of functions.
1035    They are distinguished by the type of the VALUE argument they accept.
1036    TODO: floating point, inlining support, remove cases where argument type
1037    not appropriate.  */
1038
1039 void
1040 xstormy16_cgen_set_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
1041                              int opindex,
1042                              CGEN_FIELDS * fields,
1043                              int value)
1044 {
1045   switch (opindex)
1046     {
1047     case XSTORMY16_OPERAND_RB :
1048       fields->f_Rb = value;
1049       break;
1050     case XSTORMY16_OPERAND_RBJ :
1051       fields->f_Rbj = value;
1052       break;
1053     case XSTORMY16_OPERAND_RD :
1054       fields->f_Rd = value;
1055       break;
1056     case XSTORMY16_OPERAND_RDM :
1057       fields->f_Rdm = value;
1058       break;
1059     case XSTORMY16_OPERAND_RM :
1060       fields->f_Rm = value;
1061       break;
1062     case XSTORMY16_OPERAND_RS :
1063       fields->f_Rs = value;
1064       break;
1065     case XSTORMY16_OPERAND_ABS24 :
1066       fields->f_abs24 = value;
1067       break;
1068     case XSTORMY16_OPERAND_BCOND2 :
1069       fields->f_op2 = value;
1070       break;
1071     case XSTORMY16_OPERAND_BCOND5 :
1072       fields->f_op5 = value;
1073       break;
1074     case XSTORMY16_OPERAND_HMEM8 :
1075       fields->f_hmem8 = value;
1076       break;
1077     case XSTORMY16_OPERAND_IMM12 :
1078       fields->f_imm12 = value;
1079       break;
1080     case XSTORMY16_OPERAND_IMM16 :
1081       fields->f_imm16 = value;
1082       break;
1083     case XSTORMY16_OPERAND_IMM2 :
1084       fields->f_imm2 = value;
1085       break;
1086     case XSTORMY16_OPERAND_IMM3 :
1087       fields->f_imm3 = value;
1088       break;
1089     case XSTORMY16_OPERAND_IMM3B :
1090       fields->f_imm3b = value;
1091       break;
1092     case XSTORMY16_OPERAND_IMM4 :
1093       fields->f_imm4 = value;
1094       break;
1095     case XSTORMY16_OPERAND_IMM8 :
1096       fields->f_imm8 = value;
1097       break;
1098     case XSTORMY16_OPERAND_IMM8SMALL :
1099       fields->f_imm8 = value;
1100       break;
1101     case XSTORMY16_OPERAND_LMEM8 :
1102       fields->f_lmem8 = value;
1103       break;
1104     case XSTORMY16_OPERAND_REL12 :
1105       fields->f_rel12 = value;
1106       break;
1107     case XSTORMY16_OPERAND_REL12A :
1108       fields->f_rel12a = value;
1109       break;
1110     case XSTORMY16_OPERAND_REL8_2 :
1111       fields->f_rel8_2 = value;
1112       break;
1113     case XSTORMY16_OPERAND_REL8_4 :
1114       fields->f_rel8_4 = value;
1115       break;
1116     case XSTORMY16_OPERAND_WS2 :
1117       fields->f_op2m = value;
1118       break;
1119
1120     default :
1121       /* xgettext:c-format */
1122       fprintf (stderr, _("Unrecognized field %d while setting int operand.\n"),
1123                        opindex);
1124       abort ();
1125   }
1126 }
1127
1128 void
1129 xstormy16_cgen_set_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
1130                              int opindex,
1131                              CGEN_FIELDS * fields,
1132                              bfd_vma value)
1133 {
1134   switch (opindex)
1135     {
1136     case XSTORMY16_OPERAND_RB :
1137       fields->f_Rb = value;
1138       break;
1139     case XSTORMY16_OPERAND_RBJ :
1140       fields->f_Rbj = value;
1141       break;
1142     case XSTORMY16_OPERAND_RD :
1143       fields->f_Rd = value;
1144       break;
1145     case XSTORMY16_OPERAND_RDM :
1146       fields->f_Rdm = value;
1147       break;
1148     case XSTORMY16_OPERAND_RM :
1149       fields->f_Rm = value;
1150       break;
1151     case XSTORMY16_OPERAND_RS :
1152       fields->f_Rs = value;
1153       break;
1154     case XSTORMY16_OPERAND_ABS24 :
1155       fields->f_abs24 = value;
1156       break;
1157     case XSTORMY16_OPERAND_BCOND2 :
1158       fields->f_op2 = value;
1159       break;
1160     case XSTORMY16_OPERAND_BCOND5 :
1161       fields->f_op5 = value;
1162       break;
1163     case XSTORMY16_OPERAND_HMEM8 :
1164       fields->f_hmem8 = value;
1165       break;
1166     case XSTORMY16_OPERAND_IMM12 :
1167       fields->f_imm12 = value;
1168       break;
1169     case XSTORMY16_OPERAND_IMM16 :
1170       fields->f_imm16 = value;
1171       break;
1172     case XSTORMY16_OPERAND_IMM2 :
1173       fields->f_imm2 = value;
1174       break;
1175     case XSTORMY16_OPERAND_IMM3 :
1176       fields->f_imm3 = value;
1177       break;
1178     case XSTORMY16_OPERAND_IMM3B :
1179       fields->f_imm3b = value;
1180       break;
1181     case XSTORMY16_OPERAND_IMM4 :
1182       fields->f_imm4 = value;
1183       break;
1184     case XSTORMY16_OPERAND_IMM8 :
1185       fields->f_imm8 = value;
1186       break;
1187     case XSTORMY16_OPERAND_IMM8SMALL :
1188       fields->f_imm8 = value;
1189       break;
1190     case XSTORMY16_OPERAND_LMEM8 :
1191       fields->f_lmem8 = value;
1192       break;
1193     case XSTORMY16_OPERAND_REL12 :
1194       fields->f_rel12 = value;
1195       break;
1196     case XSTORMY16_OPERAND_REL12A :
1197       fields->f_rel12a = value;
1198       break;
1199     case XSTORMY16_OPERAND_REL8_2 :
1200       fields->f_rel8_2 = value;
1201       break;
1202     case XSTORMY16_OPERAND_REL8_4 :
1203       fields->f_rel8_4 = value;
1204       break;
1205     case XSTORMY16_OPERAND_WS2 :
1206       fields->f_op2m = value;
1207       break;
1208
1209     default :
1210       /* xgettext:c-format */
1211       fprintf (stderr, _("Unrecognized field %d while setting vma operand.\n"),
1212                        opindex);
1213       abort ();
1214   }
1215 }
1216
1217 /* Function to call before using the instruction builder tables.  */
1218
1219 void
1220 xstormy16_cgen_init_ibld_table (CGEN_CPU_DESC cd)
1221 {
1222   cd->insert_handlers = & xstormy16_cgen_insert_handlers[0];
1223   cd->extract_handlers = & xstormy16_cgen_extract_handlers[0];
1224
1225   cd->insert_operand = xstormy16_cgen_insert_operand;
1226   cd->extract_operand = xstormy16_cgen_extract_operand;
1227
1228   cd->get_int_operand = xstormy16_cgen_get_int_operand;
1229   cd->set_int_operand = xstormy16_cgen_set_int_operand;
1230   cd->get_vma_operand = xstormy16_cgen_get_vma_operand;
1231   cd->set_vma_operand = xstormy16_cgen_set_vma_operand;
1232 }