opcodes/xstormy16-ibld.c

   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) 1996-2020 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_within_word, shift_to_word, shift;
 212
 213     /* How to shift the value to BIT0 of the word.  */
 214     shift_to_word = total_length - (word_offset + word_length);
 215
 216     /* How to shift the value to the field within the word.  */
 217     if (CGEN_INSN_LSB0_P)
 218       shift_within_word = start + 1 - length;
 219     else
 220       shift_within_word = word_length - start - length;
 221
 222     /* The total SHIFT, then mask in the value.  */
 223     shift = shift_to_word + shift_within_word;
 224     *buffer = (*buffer & ~(mask << shift)) | ((value & mask) << shift);
 225   }
 226
 227 #else /* ! CGEN_INT_INSN_P */
 228
 229   {
 230     unsigned char *bufp = (unsigned char *) buffer + word_offset / 8;
 231
 232     insert_1 (cd, value, start, length, word_length, bufp);
 233   }
 234
 235 #endif /* ! CGEN_INT_INSN_P */
 236
 237   return NULL;
 238 }
 239
 240 /* Default insn builder (insert handler).
 241    The instruction is recorded in CGEN_INT_INSN_P byte order (meaning
 242    that if CGEN_INSN_BYTES_PTR is an int * and thus, the value is
 243    recorded in host byte order, otherwise BUFFER is an array of bytes
 244    and the value is recorded in target byte order).
 245    The result is an error message or NULL if success.  */
 246
 247 static const char *
 248 insert_insn_normal (CGEN_CPU_DESC cd,
 249                     const CGEN_INSN * insn,
 250                     CGEN_FIELDS * fields,
 251                     CGEN_INSN_BYTES_PTR buffer,
 252                     bfd_vma pc)
 253 {
 254   const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
 255   unsigned long value;
 256   const CGEN_SYNTAX_CHAR_TYPE * syn;
 257
 258   CGEN_INIT_INSERT (cd);
 259   value = CGEN_INSN_BASE_VALUE (insn);
 260
 261   /* If we're recording insns as numbers (rather than a string of bytes),
 262      target byte order handling is deferred until later.  */
 263
 264 #if CGEN_INT_INSN_P
 265
 266   put_insn_int_value (cd, buffer, cd->base_insn_bitsize,
 267                       CGEN_FIELDS_BITSIZE (fields), value);
 268
 269 #else
 270
 271   cgen_put_insn_value (cd, buffer, min ((unsigned) cd->base_insn_bitsize,
 272                                         (unsigned) CGEN_FIELDS_BITSIZE (fields)),
 273                        value);
 274
 275 #endif /* ! CGEN_INT_INSN_P */
 276
 277   /* ??? It would be better to scan the format's fields.
 278      Still need to be able to insert a value based on the operand though;
 279      e.g. storing a branch displacement that got resolved later.
 280      Needs more thought first.  */
 281
 282   for (syn = CGEN_SYNTAX_STRING (syntax); * syn; ++ syn)
 283     {
 284       const char *errmsg;
 285
 286       if (CGEN_SYNTAX_CHAR_P (* syn))
 287         continue;
 288
 289       errmsg = (* cd->insert_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
 290                                        fields, buffer, pc);
 291       if (errmsg)
 292         return errmsg;
 293     }
 294
 295   return NULL;
 296 }
 297
 298 #if CGEN_INT_INSN_P
 299 /* Cover function to store an insn value into an integral insn.  Must go here
 300    because it needs <prefix>-desc.h for CGEN_INT_INSN_P.  */
 301
 302 static void
 303 put_insn_int_value (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 304                     CGEN_INSN_BYTES_PTR buf,
 305                     int length,
 306                     int insn_length,
 307                     CGEN_INSN_INT value)
 308 {
 309   /* For architectures with insns smaller than the base-insn-bitsize,
 310      length may be too big.  */
 311   if (length > insn_length)
 312     *buf = value;
 313   else
 314     {
 315       int shift = insn_length - length;
 316       /* Written this way to avoid undefined behaviour.  */
 317       CGEN_INSN_INT mask = (((1L << (length - 1)) - 1) << 1) | 1;
 318
 319       *buf = (*buf & ~(mask << shift)) | ((value & mask) << shift);
 320     }
 321 }
 322 #endif
 323 \f
 324 /* Operand extraction.  */
 325
 326 #if ! CGEN_INT_INSN_P
 327
 328 /* Subroutine of extract_normal.
 329    Ensure sufficient bytes are cached in EX_INFO.
 330    OFFSET is the offset in bytes from the start of the insn of the value.
 331    BYTES is the length of the needed value.
 332    Returns 1 for success, 0 for failure.  */
 333
 334 static CGEN_INLINE int
 335 fill_cache (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 336             CGEN_EXTRACT_INFO *ex_info,
 337             int offset,
 338             int bytes,
 339             bfd_vma pc)
 340 {
 341   /* It's doubtful that the middle part has already been fetched so
 342      we don't optimize that case.  kiss.  */
 343   unsigned int mask;
 344   disassemble_info *info = (disassemble_info *) ex_info->dis_info;
 345
 346   /* First do a quick check.  */
 347   mask = (1 << bytes) - 1;
 348   if (((ex_info->valid >> offset) & mask) == mask)
 349     return 1;
 350
 351   /* Search for the first byte we need to read.  */
 352   for (mask = 1 << offset; bytes > 0; --bytes, ++offset, mask <<= 1)
 353     if (! (mask & ex_info->valid))
 354       break;
 355
 356   if (bytes)
 357     {
 358       int status;
 359
 360       pc += offset;
 361       status = (*info->read_memory_func)
 362         (pc, ex_info->insn_bytes + offset, bytes, info);
 363
 364       if (status != 0)
 365         {
 366           (*info->memory_error_func) (status, pc, info);
 367           return 0;
 368         }
 369
 370       ex_info->valid |= ((1 << bytes) - 1) << offset;
 371     }
 372
 373   return 1;
 374 }
 375
 376 /* Subroutine of extract_normal.  */
 377
 378 static CGEN_INLINE long
 379 extract_1 (CGEN_CPU_DESC cd,
 380            CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
 381            int start,
 382            int length,
 383            int word_length,
 384            unsigned char *bufp,
 385            bfd_vma pc ATTRIBUTE_UNUSED)
 386 {
 387   unsigned long x;
 388   int shift;
 389
 390   x = cgen_get_insn_value (cd, bufp, word_length);
 391
 392   if (CGEN_INSN_LSB0_P)
 393     shift = (start + 1) - length;
 394   else
 395     shift = (word_length - (start + length));
 396   return x >> shift;
 397 }
 398
 399 #endif /* ! CGEN_INT_INSN_P */
 400
 401 /* Default extraction routine.
 402
 403    INSN_VALUE is the first base_insn_bitsize bits of the insn in host order,
 404    or sometimes less for cases like the m32r where the base insn size is 32
 405    but some insns are 16 bits.
 406    ATTRS is a mask of the boolean attributes.  We only need `SIGNED',
 407    but for generality we take a bitmask of all of them.
 408    WORD_OFFSET is the offset in bits from the start of the insn of the value.
 409    WORD_LENGTH is the length of the word in bits in which the value resides.
 410    START is the starting bit number in the word, architecture origin.
 411    LENGTH is the length of VALUE in bits.
 412    TOTAL_LENGTH is the total length of the insn in bits.
 413
 414    Returns 1 for success, 0 for failure.  */
 415
 416 /* ??? The return code isn't properly used.  wip.  */
 417
 418 /* ??? This doesn't handle bfd_vma's.  Create another function when
 419    necessary.  */
 420
 421 static int
 422 extract_normal (CGEN_CPU_DESC cd,
 423 #if ! CGEN_INT_INSN_P
 424                 CGEN_EXTRACT_INFO *ex_info,
 425 #else
 426                 CGEN_EXTRACT_INFO *ex_info ATTRIBUTE_UNUSED,
 427 #endif
 428                 CGEN_INSN_INT insn_value,
 429                 unsigned int attrs,
 430                 unsigned int word_offset,
 431                 unsigned int start,
 432                 unsigned int length,
 433                 unsigned int word_length,
 434                 unsigned int total_length,
 435 #if ! CGEN_INT_INSN_P
 436                 bfd_vma pc,
 437 #else
 438                 bfd_vma pc ATTRIBUTE_UNUSED,
 439 #endif
 440                 long *valuep)
 441 {
 442   long value, mask;
 443
 444   /* If LENGTH is zero, this operand doesn't contribute to the value
 445      so give it a standard value of zero.  */
 446   if (length == 0)
 447     {
 448       *valuep = 0;
 449       return 1;
 450     }
 451
 452   if (word_length > 8 * sizeof (CGEN_INSN_INT))
 453     abort ();
 454
 455   /* For architectures with insns smaller than the insn-base-bitsize,
 456      word_length may be too big.  */
 457   if (cd->min_insn_bitsize < cd->base_insn_bitsize)
 458     {
 459       if (word_offset + word_length > total_length)
 460         word_length = total_length - word_offset;
 461     }
 462
 463   /* Does the value reside in INSN_VALUE, and at the right alignment?  */
 464
 465   if (CGEN_INT_INSN_P || (word_offset == 0 && word_length == total_length))
 466     {
 467       if (CGEN_INSN_LSB0_P)
 468         value = insn_value >> ((word_offset + start + 1) - length);
 469       else
 470         value = insn_value >> (total_length - ( word_offset + start + length));
 471     }
 472
 473 #if ! CGEN_INT_INSN_P
 474
 475   else
 476     {
 477       unsigned char *bufp = ex_info->insn_bytes + word_offset / 8;
 478
 479       if (word_length > 8 * sizeof (CGEN_INSN_INT))
 480         abort ();
 481
 482       if (fill_cache (cd, ex_info, word_offset / 8, word_length / 8, pc) == 0)
 483         return 0;
 484
 485       value = extract_1 (cd, ex_info, start, length, word_length, bufp, pc);
 486     }
 487
 488 #endif /* ! CGEN_INT_INSN_P */
 489
 490   /* Written this way to avoid undefined behaviour.  */
 491   mask = (((1L << (length - 1)) - 1) << 1) | 1;
 492
 493   value &= mask;
 494   /* sign extend? */
 495   if (CGEN_BOOL_ATTR (attrs, CGEN_IFLD_SIGNED)
 496       && (value & (1L << (length - 1))))
 497     value |= ~mask;
 498
 499   *valuep = value;
 500
 501   return 1;
 502 }
 503
 504 /* Default insn extractor.
 505
 506    INSN_VALUE is the first base_insn_bitsize bits, translated to host order.
 507    The extracted fields are stored in FIELDS.
 508    EX_INFO is used to handle reading variable length insns.
 509    Return the length of the insn in bits, or 0 if no match,
 510    or -1 if an error occurs fetching data (memory_error_func will have
 511    been called).  */
 512
 513 static int
 514 extract_insn_normal (CGEN_CPU_DESC cd,
 515                      const CGEN_INSN *insn,
 516                      CGEN_EXTRACT_INFO *ex_info,
 517                      CGEN_INSN_INT insn_value,
 518                      CGEN_FIELDS *fields,
 519                      bfd_vma pc)
 520 {
 521   const CGEN_SYNTAX *syntax = CGEN_INSN_SYNTAX (insn);
 522   const CGEN_SYNTAX_CHAR_TYPE *syn;
 523
 524   CGEN_FIELDS_BITSIZE (fields) = CGEN_INSN_BITSIZE (insn);
 525
 526   CGEN_INIT_EXTRACT (cd);
 527
 528   for (syn = CGEN_SYNTAX_STRING (syntax); *syn; ++syn)
 529     {
 530       int length;
 531
 532       if (CGEN_SYNTAX_CHAR_P (*syn))
 533         continue;
 534
 535       length = (* cd->extract_operand) (cd, CGEN_SYNTAX_FIELD (*syn),
 536                                         ex_info, insn_value, fields, pc);
 537       if (length <= 0)
 538         return length;
 539     }
 540
 541   /* We recognized and successfully extracted this insn.  */
 542   return CGEN_INSN_BITSIZE (insn);
 543 }
 544 \f
 545 /* Machine generated code added here.  */
 546
 547 const char * xstormy16_cgen_insert_operand
 548   (CGEN_CPU_DESC, int, CGEN_FIELDS *, CGEN_INSN_BYTES_PTR, bfd_vma);
 549
 550 /* Main entry point for operand insertion.
 551
 552    This function is basically just a big switch statement.  Earlier versions
 553    used tables to look up the function to use, but
 554    - if the table contains both assembler and disassembler functions then
 555      the disassembler contains much of the assembler and vice-versa,
 556    - there's a lot of inlining possibilities as things grow,
 557    - using a switch statement avoids the function call overhead.
 558
 559    This function could be moved into `parse_insn_normal', but keeping it
 560    separate makes clear the interface between `parse_insn_normal' and each of
 561    the handlers.  It's also needed by GAS to insert operands that couldn't be
 562    resolved during parsing.  */
 563
 564 const char *
 565 xstormy16_cgen_insert_operand (CGEN_CPU_DESC cd,
 566                              int opindex,
 567                              CGEN_FIELDS * fields,
 568                              CGEN_INSN_BYTES_PTR buffer,
 569                              bfd_vma pc ATTRIBUTE_UNUSED)
 570 {
 571   const char * errmsg = NULL;
 572   unsigned int total_length = CGEN_FIELDS_BITSIZE (fields);
 573
 574   switch (opindex)
 575     {
 576     case XSTORMY16_OPERAND_RB :
 577       errmsg = insert_normal (cd, fields->f_Rb, 0, 0, 17, 3, 32, total_length, buffer);
 578       break;
 579     case XSTORMY16_OPERAND_RBJ :
 580       errmsg = insert_normal (cd, fields->f_Rbj, 0, 0, 11, 1, 32, total_length, buffer);
 581       break;
 582     case XSTORMY16_OPERAND_RD :
 583       errmsg = insert_normal (cd, fields->f_Rd, 0, 0, 12, 4, 32, total_length, buffer);
 584       break;
 585     case XSTORMY16_OPERAND_RDM :
 586       errmsg = insert_normal (cd, fields->f_Rdm, 0, 0, 13, 3, 32, total_length, buffer);
 587       break;
 588     case XSTORMY16_OPERAND_RM :
 589       errmsg = insert_normal (cd, fields->f_Rm, 0, 0, 4, 3, 32, total_length, buffer);
 590       break;
 591     case XSTORMY16_OPERAND_RS :
 592       errmsg = insert_normal (cd, fields->f_Rs, 0, 0, 8, 4, 32, total_length, buffer);
 593       break;
 594     case XSTORMY16_OPERAND_ABS24 :
 595       {
 596 {
 597   FLD (f_abs24_1) = ((FLD (f_abs24)) & (255));
 598   FLD (f_abs24_2) = ((UINT) (FLD (f_abs24)) >> (8));
 599 }
 600         errmsg = insert_normal (cd, fields->f_abs24_1, 0, 0, 8, 8, 32, total_length, buffer);
 601         if (errmsg)
 602           break;
 603         errmsg = insert_normal (cd, fields->f_abs24_2, 0, 0, 16, 16, 32, total_length, buffer);
 604         if (errmsg)
 605           break;
 606       }
 607       break;
 608     case XSTORMY16_OPERAND_BCOND2 :
 609       errmsg = insert_normal (cd, fields->f_op2, 0, 0, 4, 4, 32, total_length, buffer);
 610       break;
 611     case XSTORMY16_OPERAND_BCOND5 :
 612       errmsg = insert_normal (cd, fields->f_op5, 0, 0, 16, 4, 32, total_length, buffer);
 613       break;
 614     case XSTORMY16_OPERAND_HMEM8 :
 615       {
 616         long value = fields->f_hmem8;
 617         value = ((value) - (32512));
 618         errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 8, 32, total_length, buffer);
 619       }
 620       break;
 621     case XSTORMY16_OPERAND_IMM12 :
 622       errmsg = insert_normal (cd, fields->f_imm12, 0|(1<<CGEN_IFLD_SIGNED), 0, 20, 12, 32, total_length, buffer);
 623       break;
 624     case XSTORMY16_OPERAND_IMM16 :
 625       errmsg = insert_normal (cd, fields->f_imm16, 0|(1<<CGEN_IFLD_SIGN_OPT), 0, 16, 16, 32, total_length, buffer);
 626       break;
 627     case XSTORMY16_OPERAND_IMM2 :
 628       errmsg = insert_normal (cd, fields->f_imm2, 0, 0, 10, 2, 32, total_length, buffer);
 629       break;
 630     case XSTORMY16_OPERAND_IMM3 :
 631       errmsg = insert_normal (cd, fields->f_imm3, 0, 0, 4, 3, 32, total_length, buffer);
 632       break;
 633     case XSTORMY16_OPERAND_IMM3B :
 634       errmsg = insert_normal (cd, fields->f_imm3b, 0, 0, 17, 3, 32, total_length, buffer);
 635       break;
 636     case XSTORMY16_OPERAND_IMM4 :
 637       errmsg = insert_normal (cd, fields->f_imm4, 0, 0, 8, 4, 32, total_length, buffer);
 638       break;
 639     case XSTORMY16_OPERAND_IMM8 :
 640       errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 8, 8, 32, total_length, buffer);
 641       break;
 642     case XSTORMY16_OPERAND_IMM8SMALL :
 643       errmsg = insert_normal (cd, fields->f_imm8, 0, 0, 8, 8, 32, total_length, buffer);
 644       break;
 645     case XSTORMY16_OPERAND_LMEM8 :
 646       errmsg = insert_normal (cd, fields->f_lmem8, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 8, 32, total_length, buffer);
 647       break;
 648     case XSTORMY16_OPERAND_REL12 :
 649       {
 650         long value = fields->f_rel12;
 651         value = ((value) - (((pc) + (4))));
 652         errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 20, 12, 32, total_length, buffer);
 653       }
 654       break;
 655     case XSTORMY16_OPERAND_REL12A :
 656       {
 657         long value = fields->f_rel12a;
 658         value = ((SI) (((value) - (((pc) + (2))))) >> (1));
 659         errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 4, 11, 32, total_length, buffer);
 660       }
 661       break;
 662     case XSTORMY16_OPERAND_REL8_2 :
 663       {
 664         long value = fields->f_rel8_2;
 665         value = ((value) - (((pc) + (2))));
 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_REL8_4 :
 670       {
 671         long value = fields->f_rel8_4;
 672         value = ((value) - (((pc) + (4))));
 673         errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 8, 8, 32, total_length, buffer);
 674       }
 675       break;
 676     case XSTORMY16_OPERAND_WS2 :
 677       errmsg = insert_normal (cd, fields->f_op2m, 0, 0, 7, 1, 32, total_length, buffer);
 678       break;
 679
 680     default :
 681       /* xgettext:c-format */
 682       opcodes_error_handler
 683         (_("internal error: unrecognized field %d while building insn"),
 684          opindex);
 685       abort ();
 686   }
 687
 688   return errmsg;
 689 }
 690
 691 int xstormy16_cgen_extract_operand
 692   (CGEN_CPU_DESC, int, CGEN_EXTRACT_INFO *, CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma);
 693
 694 /* Main entry point for operand extraction.
 695    The result is <= 0 for error, >0 for success.
 696    ??? Actual values aren't well defined right now.
 697
 698    This function is basically just a big switch statement.  Earlier versions
 699    used tables to look up the function to use, but
 700    - if the table contains both assembler and disassembler functions then
 701      the disassembler contains much of the assembler and vice-versa,
 702    - there's a lot of inlining possibilities as things grow,
 703    - using a switch statement avoids the function call overhead.
 704
 705    This function could be moved into `print_insn_normal', but keeping it
 706    separate makes clear the interface between `print_insn_normal' and each of
 707    the handlers.  */
 708
 709 int
 710 xstormy16_cgen_extract_operand (CGEN_CPU_DESC cd,
 711                              int opindex,
 712                              CGEN_EXTRACT_INFO *ex_info,
 713                              CGEN_INSN_INT insn_value,
 714                              CGEN_FIELDS * fields,
 715                              bfd_vma pc)
 716 {
 717   /* Assume success (for those operands that are nops).  */
 718   int length = 1;
 719   unsigned int total_length = CGEN_FIELDS_BITSIZE (fields);
 720
 721   switch (opindex)
 722     {
 723     case XSTORMY16_OPERAND_RB :
 724       length = extract_normal (cd, ex_info, insn_value, 0, 0, 17, 3, 32, total_length, pc, & fields->f_Rb);
 725       break;
 726     case XSTORMY16_OPERAND_RBJ :
 727       length = extract_normal (cd, ex_info, insn_value, 0, 0, 11, 1, 32, total_length, pc, & fields->f_Rbj);
 728       break;
 729     case XSTORMY16_OPERAND_RD :
 730       length = extract_normal (cd, ex_info, insn_value, 0, 0, 12, 4, 32, total_length, pc, & fields->f_Rd);
 731       break;
 732     case XSTORMY16_OPERAND_RDM :
 733       length = extract_normal (cd, ex_info, insn_value, 0, 0, 13, 3, 32, total_length, pc, & fields->f_Rdm);
 734       break;
 735     case XSTORMY16_OPERAND_RM :
 736       length = extract_normal (cd, ex_info, insn_value, 0, 0, 4, 3, 32, total_length, pc, & fields->f_Rm);
 737       break;
 738     case XSTORMY16_OPERAND_RS :
 739       length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 4, 32, total_length, pc, & fields->f_Rs);
 740       break;
 741     case XSTORMY16_OPERAND_ABS24 :
 742       {
 743         length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 8, 32, total_length, pc, & fields->f_abs24_1);
 744         if (length <= 0) break;
 745         length = extract_normal (cd, ex_info, insn_value, 0, 0, 16, 16, 32, total_length, pc, & fields->f_abs24_2);
 746         if (length <= 0) break;
 747   FLD (f_abs24) = ((((FLD (f_abs24_2)) << (8))) | (FLD (f_abs24_1)));
 748       }
 749       break;
 750     case XSTORMY16_OPERAND_BCOND2 :
 751       length = extract_normal (cd, ex_info, insn_value, 0, 0, 4, 4, 32, total_length, pc, & fields->f_op2);
 752       break;
 753     case XSTORMY16_OPERAND_BCOND5 :
 754       length = extract_normal (cd, ex_info, insn_value, 0, 0, 16, 4, 32, total_length, pc, & fields->f_op5);
 755       break;
 756     case XSTORMY16_OPERAND_HMEM8 :
 757       {
 758         long value;
 759         length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 8, 32, total_length, pc, & value);
 760         value = ((value) + (32512));
 761         fields->f_hmem8 = value;
 762       }
 763       break;
 764     case XSTORMY16_OPERAND_IMM12 :
 765       length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED), 0, 20, 12, 32, total_length, pc, & fields->f_imm12);
 766       break;
 767     case XSTORMY16_OPERAND_IMM16 :
 768       length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGN_OPT), 0, 16, 16, 32, total_length, pc, & fields->f_imm16);
 769       break;
 770     case XSTORMY16_OPERAND_IMM2 :
 771       length = extract_normal (cd, ex_info, insn_value, 0, 0, 10, 2, 32, total_length, pc, & fields->f_imm2);
 772       break;
 773     case XSTORMY16_OPERAND_IMM3 :
 774       length = extract_normal (cd, ex_info, insn_value, 0, 0, 4, 3, 32, total_length, pc, & fields->f_imm3);
 775       break;
 776     case XSTORMY16_OPERAND_IMM3B :
 777       length = extract_normal (cd, ex_info, insn_value, 0, 0, 17, 3, 32, total_length, pc, & fields->f_imm3b);
 778       break;
 779     case XSTORMY16_OPERAND_IMM4 :
 780       length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 4, 32, total_length, pc, & fields->f_imm4);
 781       break;
 782     case XSTORMY16_OPERAND_IMM8 :
 783       length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 8, 32, total_length, pc, & fields->f_imm8);
 784       break;
 785     case XSTORMY16_OPERAND_IMM8SMALL :
 786       length = extract_normal (cd, ex_info, insn_value, 0, 0, 8, 8, 32, total_length, pc, & fields->f_imm8);
 787       break;
 788     case XSTORMY16_OPERAND_LMEM8 :
 789       length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_ABS_ADDR), 0, 8, 8, 32, total_length, pc, & fields->f_lmem8);
 790       break;
 791     case XSTORMY16_OPERAND_REL12 :
 792       {
 793         long value;
 794         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);
 795         value = ((value) + (((pc) + (4))));
 796         fields->f_rel12 = value;
 797       }
 798       break;
 799     case XSTORMY16_OPERAND_REL12A :
 800       {
 801         long value;
 802         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);
 803         value = ((((value) * (2))) + (((pc) + (2))));
 804         fields->f_rel12a = value;
 805       }
 806       break;
 807     case XSTORMY16_OPERAND_REL8_2 :
 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) + (2))));
 812         fields->f_rel8_2 = value;
 813       }
 814       break;
 815     case XSTORMY16_OPERAND_REL8_4 :
 816       {
 817         long value;
 818         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);
 819         value = ((value) + (((pc) + (4))));
 820         fields->f_rel8_4 = value;
 821       }
 822       break;
 823     case XSTORMY16_OPERAND_WS2 :
 824       length = extract_normal (cd, ex_info, insn_value, 0, 0, 7, 1, 32, total_length, pc, & fields->f_op2m);
 825       break;
 826
 827     default :
 828       /* xgettext:c-format */
 829       opcodes_error_handler
 830         (_("internal error: unrecognized field %d while decoding insn"),
 831          opindex);
 832       abort ();
 833     }
 834
 835   return length;
 836 }
 837
 838 cgen_insert_fn * const xstormy16_cgen_insert_handlers[] =
 839 {
 840   insert_insn_normal,
 841 };
 842
 843 cgen_extract_fn * const xstormy16_cgen_extract_handlers[] =
 844 {
 845   extract_insn_normal,
 846 };
 847
 848 int xstormy16_cgen_get_int_operand     (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
 849 bfd_vma xstormy16_cgen_get_vma_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
 850
 851 /* Getting values from cgen_fields is handled by a collection of functions.
 852    They are distinguished by the type of the VALUE argument they return.
 853    TODO: floating point, inlining support, remove cases where result type
 854    not appropriate.  */
 855
 856 int
 857 xstormy16_cgen_get_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 858                              int opindex,
 859                              const CGEN_FIELDS * fields)
 860 {
 861   int value;
 862
 863   switch (opindex)
 864     {
 865     case XSTORMY16_OPERAND_RB :
 866       value = fields->f_Rb;
 867       break;
 868     case XSTORMY16_OPERAND_RBJ :
 869       value = fields->f_Rbj;
 870       break;
 871     case XSTORMY16_OPERAND_RD :
 872       value = fields->f_Rd;
 873       break;
 874     case XSTORMY16_OPERAND_RDM :
 875       value = fields->f_Rdm;
 876       break;
 877     case XSTORMY16_OPERAND_RM :
 878       value = fields->f_Rm;
 879       break;
 880     case XSTORMY16_OPERAND_RS :
 881       value = fields->f_Rs;
 882       break;
 883     case XSTORMY16_OPERAND_ABS24 :
 884       value = fields->f_abs24;
 885       break;
 886     case XSTORMY16_OPERAND_BCOND2 :
 887       value = fields->f_op2;
 888       break;
 889     case XSTORMY16_OPERAND_BCOND5 :
 890       value = fields->f_op5;
 891       break;
 892     case XSTORMY16_OPERAND_HMEM8 :
 893       value = fields->f_hmem8;
 894       break;
 895     case XSTORMY16_OPERAND_IMM12 :
 896       value = fields->f_imm12;
 897       break;
 898     case XSTORMY16_OPERAND_IMM16 :
 899       value = fields->f_imm16;
 900       break;
 901     case XSTORMY16_OPERAND_IMM2 :
 902       value = fields->f_imm2;
 903       break;
 904     case XSTORMY16_OPERAND_IMM3 :
 905       value = fields->f_imm3;
 906       break;
 907     case XSTORMY16_OPERAND_IMM3B :
 908       value = fields->f_imm3b;
 909       break;
 910     case XSTORMY16_OPERAND_IMM4 :
 911       value = fields->f_imm4;
 912       break;
 913     case XSTORMY16_OPERAND_IMM8 :
 914       value = fields->f_imm8;
 915       break;
 916     case XSTORMY16_OPERAND_IMM8SMALL :
 917       value = fields->f_imm8;
 918       break;
 919     case XSTORMY16_OPERAND_LMEM8 :
 920       value = fields->f_lmem8;
 921       break;
 922     case XSTORMY16_OPERAND_REL12 :
 923       value = fields->f_rel12;
 924       break;
 925     case XSTORMY16_OPERAND_REL12A :
 926       value = fields->f_rel12a;
 927       break;
 928     case XSTORMY16_OPERAND_REL8_2 :
 929       value = fields->f_rel8_2;
 930       break;
 931     case XSTORMY16_OPERAND_REL8_4 :
 932       value = fields->f_rel8_4;
 933       break;
 934     case XSTORMY16_OPERAND_WS2 :
 935       value = fields->f_op2m;
 936       break;
 937
 938     default :
 939       /* xgettext:c-format */
 940       opcodes_error_handler
 941         (_("internal error: unrecognized field %d while getting int operand"),
 942          opindex);
 943       abort ();
 944   }
 945
 946   return value;
 947 }
 948
 949 bfd_vma
 950 xstormy16_cgen_get_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 951                              int opindex,
 952                              const CGEN_FIELDS * fields)
 953 {
 954   bfd_vma value;
 955
 956   switch (opindex)
 957     {
 958     case XSTORMY16_OPERAND_RB :
 959       value = fields->f_Rb;
 960       break;
 961     case XSTORMY16_OPERAND_RBJ :
 962       value = fields->f_Rbj;
 963       break;
 964     case XSTORMY16_OPERAND_RD :
 965       value = fields->f_Rd;
 966       break;
 967     case XSTORMY16_OPERAND_RDM :
 968       value = fields->f_Rdm;
 969       break;
 970     case XSTORMY16_OPERAND_RM :
 971       value = fields->f_Rm;
 972       break;
 973     case XSTORMY16_OPERAND_RS :
 974       value = fields->f_Rs;
 975       break;
 976     case XSTORMY16_OPERAND_ABS24 :
 977       value = fields->f_abs24;
 978       break;
 979     case XSTORMY16_OPERAND_BCOND2 :
 980       value = fields->f_op2;
 981       break;
 982     case XSTORMY16_OPERAND_BCOND5 :
 983       value = fields->f_op5;
 984       break;
 985     case XSTORMY16_OPERAND_HMEM8 :
 986       value = fields->f_hmem8;
 987       break;
 988     case XSTORMY16_OPERAND_IMM12 :
 989       value = fields->f_imm12;
 990       break;
 991     case XSTORMY16_OPERAND_IMM16 :
 992       value = fields->f_imm16;
 993       break;
 994     case XSTORMY16_OPERAND_IMM2 :
 995       value = fields->f_imm2;
 996       break;
 997     case XSTORMY16_OPERAND_IMM3 :
 998       value = fields->f_imm3;
 999       break;
1000     case XSTORMY16_OPERAND_IMM3B :
1001       value = fields->f_imm3b;
1002       break;
1003     case XSTORMY16_OPERAND_IMM4 :
1004       value = fields->f_imm4;
1005       break;
1006     case XSTORMY16_OPERAND_IMM8 :
1007       value = fields->f_imm8;
1008       break;
1009     case XSTORMY16_OPERAND_IMM8SMALL :
1010       value = fields->f_imm8;
1011       break;
1012     case XSTORMY16_OPERAND_LMEM8 :
1013       value = fields->f_lmem8;
1014       break;
1015     case XSTORMY16_OPERAND_REL12 :
1016       value = fields->f_rel12;
1017       break;
1018     case XSTORMY16_OPERAND_REL12A :
1019       value = fields->f_rel12a;
1020       break;
1021     case XSTORMY16_OPERAND_REL8_2 :
1022       value = fields->f_rel8_2;
1023       break;
1024     case XSTORMY16_OPERAND_REL8_4 :
1025       value = fields->f_rel8_4;
1026       break;
1027     case XSTORMY16_OPERAND_WS2 :
1028       value = fields->f_op2m;
1029       break;
1030
1031     default :
1032       /* xgettext:c-format */
1033       opcodes_error_handler
1034         (_("internal error: unrecognized field %d while getting vma operand"),
1035          opindex);
1036       abort ();
1037   }
1038
1039   return value;
1040 }
1041
1042 void xstormy16_cgen_set_int_operand  (CGEN_CPU_DESC, int, CGEN_FIELDS *, int);
1043 void xstormy16_cgen_set_vma_operand  (CGEN_CPU_DESC, int, CGEN_FIELDS *, bfd_vma);
1044
1045 /* Stuffing values in cgen_fields is handled by a collection of functions.
1046    They are distinguished by the type of the VALUE argument they accept.
1047    TODO: floating point, inlining support, remove cases where argument type
1048    not appropriate.  */
1049
1050 void
1051 xstormy16_cgen_set_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
1052                              int opindex,
1053                              CGEN_FIELDS * fields,
1054                              int value)
1055 {
1056   switch (opindex)
1057     {
1058     case XSTORMY16_OPERAND_RB :
1059       fields->f_Rb = value;
1060       break;
1061     case XSTORMY16_OPERAND_RBJ :
1062       fields->f_Rbj = value;
1063       break;
1064     case XSTORMY16_OPERAND_RD :
1065       fields->f_Rd = value;
1066       break;
1067     case XSTORMY16_OPERAND_RDM :
1068       fields->f_Rdm = value;
1069       break;
1070     case XSTORMY16_OPERAND_RM :
1071       fields->f_Rm = value;
1072       break;
1073     case XSTORMY16_OPERAND_RS :
1074       fields->f_Rs = value;
1075       break;
1076     case XSTORMY16_OPERAND_ABS24 :
1077       fields->f_abs24 = value;
1078       break;
1079     case XSTORMY16_OPERAND_BCOND2 :
1080       fields->f_op2 = value;
1081       break;
1082     case XSTORMY16_OPERAND_BCOND5 :
1083       fields->f_op5 = value;
1084       break;
1085     case XSTORMY16_OPERAND_HMEM8 :
1086       fields->f_hmem8 = value;
1087       break;
1088     case XSTORMY16_OPERAND_IMM12 :
1089       fields->f_imm12 = value;
1090       break;
1091     case XSTORMY16_OPERAND_IMM16 :
1092       fields->f_imm16 = value;
1093       break;
1094     case XSTORMY16_OPERAND_IMM2 :
1095       fields->f_imm2 = value;
1096       break;
1097     case XSTORMY16_OPERAND_IMM3 :
1098       fields->f_imm3 = value;
1099       break;
1100     case XSTORMY16_OPERAND_IMM3B :
1101       fields->f_imm3b = value;
1102       break;
1103     case XSTORMY16_OPERAND_IMM4 :
1104       fields->f_imm4 = value;
1105       break;
1106     case XSTORMY16_OPERAND_IMM8 :
1107       fields->f_imm8 = value;
1108       break;
1109     case XSTORMY16_OPERAND_IMM8SMALL :
1110       fields->f_imm8 = value;
1111       break;
1112     case XSTORMY16_OPERAND_LMEM8 :
1113       fields->f_lmem8 = value;
1114       break;
1115     case XSTORMY16_OPERAND_REL12 :
1116       fields->f_rel12 = value;
1117       break;
1118     case XSTORMY16_OPERAND_REL12A :
1119       fields->f_rel12a = value;
1120       break;
1121     case XSTORMY16_OPERAND_REL8_2 :
1122       fields->f_rel8_2 = value;
1123       break;
1124     case XSTORMY16_OPERAND_REL8_4 :
1125       fields->f_rel8_4 = value;
1126       break;
1127     case XSTORMY16_OPERAND_WS2 :
1128       fields->f_op2m = value;
1129       break;
1130
1131     default :
1132       /* xgettext:c-format */
1133       opcodes_error_handler
1134         (_("internal error: unrecognized field %d while setting int operand"),
1135          opindex);
1136       abort ();
1137   }
1138 }
1139
1140 void
1141 xstormy16_cgen_set_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
1142                              int opindex,
1143                              CGEN_FIELDS * fields,
1144                              bfd_vma value)
1145 {
1146   switch (opindex)
1147     {
1148     case XSTORMY16_OPERAND_RB :
1149       fields->f_Rb = value;
1150       break;
1151     case XSTORMY16_OPERAND_RBJ :
1152       fields->f_Rbj = value;
1153       break;
1154     case XSTORMY16_OPERAND_RD :
1155       fields->f_Rd = value;
1156       break;
1157     case XSTORMY16_OPERAND_RDM :
1158       fields->f_Rdm = value;
1159       break;
1160     case XSTORMY16_OPERAND_RM :
1161       fields->f_Rm = value;
1162       break;
1163     case XSTORMY16_OPERAND_RS :
1164       fields->f_Rs = value;
1165       break;
1166     case XSTORMY16_OPERAND_ABS24 :
1167       fields->f_abs24 = value;
1168       break;
1169     case XSTORMY16_OPERAND_BCOND2 :
1170       fields->f_op2 = value;
1171       break;
1172     case XSTORMY16_OPERAND_BCOND5 :
1173       fields->f_op5 = value;
1174       break;
1175     case XSTORMY16_OPERAND_HMEM8 :
1176       fields->f_hmem8 = value;
1177       break;
1178     case XSTORMY16_OPERAND_IMM12 :
1179       fields->f_imm12 = value;
1180       break;
1181     case XSTORMY16_OPERAND_IMM16 :
1182       fields->f_imm16 = value;
1183       break;
1184     case XSTORMY16_OPERAND_IMM2 :
1185       fields->f_imm2 = value;
1186       break;
1187     case XSTORMY16_OPERAND_IMM3 :
1188       fields->f_imm3 = value;
1189       break;
1190     case XSTORMY16_OPERAND_IMM3B :
1191       fields->f_imm3b = value;
1192       break;
1193     case XSTORMY16_OPERAND_IMM4 :
1194       fields->f_imm4 = value;
1195       break;
1196     case XSTORMY16_OPERAND_IMM8 :
1197       fields->f_imm8 = value;
1198       break;
1199     case XSTORMY16_OPERAND_IMM8SMALL :
1200       fields->f_imm8 = value;
1201       break;
1202     case XSTORMY16_OPERAND_LMEM8 :
1203       fields->f_lmem8 = value;
1204       break;
1205     case XSTORMY16_OPERAND_REL12 :
1206       fields->f_rel12 = value;
1207       break;
1208     case XSTORMY16_OPERAND_REL12A :
1209       fields->f_rel12a = value;
1210       break;
1211     case XSTORMY16_OPERAND_REL8_2 :
1212       fields->f_rel8_2 = value;
1213       break;
1214     case XSTORMY16_OPERAND_REL8_4 :
1215       fields->f_rel8_4 = value;
1216       break;
1217     case XSTORMY16_OPERAND_WS2 :
1218       fields->f_op2m = value;
1219       break;
1220
1221     default :
1222       /* xgettext:c-format */
1223       opcodes_error_handler
1224         (_("internal error: unrecognized field %d while setting vma operand"),
1225          opindex);
1226       abort ();
1227   }
1228 }
1229
1230 /* Function to call before using the instruction builder tables.  */
1231
1232 void
1233 xstormy16_cgen_init_ibld_table (CGEN_CPU_DESC cd)
1234 {
1235   cd->insert_handlers = & xstormy16_cgen_insert_handlers[0];
1236   cd->extract_handlers = & xstormy16_cgen_extract_handlers[0];
1237
1238   cd->insert_operand = xstormy16_cgen_insert_operand;
1239   cd->extract_operand = xstormy16_cgen_extract_operand;
1240
1241   cd->get_int_operand = xstormy16_cgen_get_int_operand;
1242   cd->set_int_operand = xstormy16_cgen_set_int_operand;
1243   cd->get_vma_operand = xstormy16_cgen_get_vma_operand;
1244   cd->set_vma_operand = xstormy16_cgen_set_vma_operand;
1245 }