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