opcodes/or1k-ibld.c

   1 /* DO NOT EDIT!  -*- buffer-read-only: t -*- vi:set ro:  */
   2 /* Instruction building/extraction support for or1k. -*- 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) 1996-2018 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 "or1k-desc.h"
  35 #include "or1k-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 * or1k_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 or1k_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 OR1K_OPERAND_DISP26 :
 577       {
 578         long value = fields->f_disp26;
 579         value = ((SI) (((value) - (pc))) >> (2));
 580         errmsg = insert_normal (cd, value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 25, 26, 32, total_length, buffer);
 581       }
 582       break;
 583     case OR1K_OPERAND_RA :
 584       errmsg = insert_normal (cd, fields->f_r2, 0, 0, 20, 5, 32, total_length, buffer);
 585       break;
 586     case OR1K_OPERAND_RADF :
 587       errmsg = insert_normal (cd, fields->f_r1, 0, 0, 25, 5, 32, total_length, buffer);
 588       break;
 589     case OR1K_OPERAND_RASF :
 590       errmsg = insert_normal (cd, fields->f_r2, 0, 0, 20, 5, 32, total_length, buffer);
 591       break;
 592     case OR1K_OPERAND_RB :
 593       errmsg = insert_normal (cd, fields->f_r3, 0, 0, 15, 5, 32, total_length, buffer);
 594       break;
 595     case OR1K_OPERAND_RBDF :
 596       errmsg = insert_normal (cd, fields->f_r1, 0, 0, 25, 5, 32, total_length, buffer);
 597       break;
 598     case OR1K_OPERAND_RBSF :
 599       errmsg = insert_normal (cd, fields->f_r3, 0, 0, 15, 5, 32, total_length, buffer);
 600       break;
 601     case OR1K_OPERAND_RD :
 602       errmsg = insert_normal (cd, fields->f_r1, 0, 0, 25, 5, 32, total_length, buffer);
 603       break;
 604     case OR1K_OPERAND_RDDF :
 605       errmsg = insert_normal (cd, fields->f_r1, 0, 0, 25, 5, 32, total_length, buffer);
 606       break;
 607     case OR1K_OPERAND_RDSF :
 608       errmsg = insert_normal (cd, fields->f_r1, 0, 0, 25, 5, 32, total_length, buffer);
 609       break;
 610     case OR1K_OPERAND_SIMM16 :
 611       errmsg = insert_normal (cd, fields->f_simm16, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_SIGN_OPT), 0, 15, 16, 32, total_length, buffer);
 612       break;
 613     case OR1K_OPERAND_SIMM16_SPLIT :
 614       {
 615 {
 616   FLD (f_imm16_25_5) = ((((INT) (FLD (f_simm16_split)) >> (11))) & (31));
 617   FLD (f_imm16_10_11) = ((FLD (f_simm16_split)) & (2047));
 618 }
 619         errmsg = insert_normal (cd, fields->f_imm16_25_5, 0, 0, 25, 5, 32, total_length, buffer);
 620         if (errmsg)
 621           break;
 622         errmsg = insert_normal (cd, fields->f_imm16_10_11, 0, 0, 10, 11, 32, total_length, buffer);
 623         if (errmsg)
 624           break;
 625       }
 626       break;
 627     case OR1K_OPERAND_UIMM16 :
 628       errmsg = insert_normal (cd, fields->f_uimm16, 0, 0, 15, 16, 32, total_length, buffer);
 629       break;
 630     case OR1K_OPERAND_UIMM16_SPLIT :
 631       {
 632 {
 633   FLD (f_imm16_25_5) = ((((UINT) (FLD (f_uimm16_split)) >> (11))) & (31));
 634   FLD (f_imm16_10_11) = ((FLD (f_uimm16_split)) & (2047));
 635 }
 636         errmsg = insert_normal (cd, fields->f_imm16_25_5, 0, 0, 25, 5, 32, total_length, buffer);
 637         if (errmsg)
 638           break;
 639         errmsg = insert_normal (cd, fields->f_imm16_10_11, 0, 0, 10, 11, 32, total_length, buffer);
 640         if (errmsg)
 641           break;
 642       }
 643       break;
 644     case OR1K_OPERAND_UIMM6 :
 645       errmsg = insert_normal (cd, fields->f_uimm6, 0, 0, 5, 6, 32, total_length, buffer);
 646       break;
 647
 648     default :
 649       /* xgettext:c-format */
 650       opcodes_error_handler
 651         (_("internal error: unrecognized field %d while building insn"),
 652          opindex);
 653       abort ();
 654   }
 655
 656   return errmsg;
 657 }
 658
 659 int or1k_cgen_extract_operand
 660   (CGEN_CPU_DESC, int, CGEN_EXTRACT_INFO *, CGEN_INSN_INT, CGEN_FIELDS *, bfd_vma);
 661
 662 /* Main entry point for operand extraction.
 663    The result is <= 0 for error, >0 for success.
 664    ??? Actual values aren't well defined right now.
 665
 666    This function is basically just a big switch statement.  Earlier versions
 667    used tables to look up the function to use, but
 668    - if the table contains both assembler and disassembler functions then
 669      the disassembler contains much of the assembler and vice-versa,
 670    - there's a lot of inlining possibilities as things grow,
 671    - using a switch statement avoids the function call overhead.
 672
 673    This function could be moved into `print_insn_normal', but keeping it
 674    separate makes clear the interface between `print_insn_normal' and each of
 675    the handlers.  */
 676
 677 int
 678 or1k_cgen_extract_operand (CGEN_CPU_DESC cd,
 679                              int opindex,
 680                              CGEN_EXTRACT_INFO *ex_info,
 681                              CGEN_INSN_INT insn_value,
 682                              CGEN_FIELDS * fields,
 683                              bfd_vma pc)
 684 {
 685   /* Assume success (for those operands that are nops).  */
 686   int length = 1;
 687   unsigned int total_length = CGEN_FIELDS_BITSIZE (fields);
 688
 689   switch (opindex)
 690     {
 691     case OR1K_OPERAND_DISP26 :
 692       {
 693         long value;
 694         length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_PCREL_ADDR), 0, 25, 26, 32, total_length, pc, & value);
 695         value = ((((value) << (2))) + (pc));
 696         fields->f_disp26 = value;
 697       }
 698       break;
 699     case OR1K_OPERAND_RA :
 700       length = extract_normal (cd, ex_info, insn_value, 0, 0, 20, 5, 32, total_length, pc, & fields->f_r2);
 701       break;
 702     case OR1K_OPERAND_RADF :
 703       length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_r1);
 704       break;
 705     case OR1K_OPERAND_RASF :
 706       length = extract_normal (cd, ex_info, insn_value, 0, 0, 20, 5, 32, total_length, pc, & fields->f_r2);
 707       break;
 708     case OR1K_OPERAND_RB :
 709       length = extract_normal (cd, ex_info, insn_value, 0, 0, 15, 5, 32, total_length, pc, & fields->f_r3);
 710       break;
 711     case OR1K_OPERAND_RBDF :
 712       length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_r1);
 713       break;
 714     case OR1K_OPERAND_RBSF :
 715       length = extract_normal (cd, ex_info, insn_value, 0, 0, 15, 5, 32, total_length, pc, & fields->f_r3);
 716       break;
 717     case OR1K_OPERAND_RD :
 718       length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_r1);
 719       break;
 720     case OR1K_OPERAND_RDDF :
 721       length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_r1);
 722       break;
 723     case OR1K_OPERAND_RDSF :
 724       length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_r1);
 725       break;
 726     case OR1K_OPERAND_SIMM16 :
 727       length = extract_normal (cd, ex_info, insn_value, 0|(1<<CGEN_IFLD_SIGNED)|(1<<CGEN_IFLD_SIGN_OPT), 0, 15, 16, 32, total_length, pc, & fields->f_simm16);
 728       break;
 729     case OR1K_OPERAND_SIMM16_SPLIT :
 730       {
 731         length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_imm16_25_5);
 732         if (length <= 0) break;
 733         length = extract_normal (cd, ex_info, insn_value, 0, 0, 10, 11, 32, total_length, pc, & fields->f_imm16_10_11);
 734         if (length <= 0) break;
 735   FLD (f_simm16_split) = ((HI) (UINT) (((((FLD (f_imm16_25_5)) << (11))) | (FLD (f_imm16_10_11)))));
 736       }
 737       break;
 738     case OR1K_OPERAND_UIMM16 :
 739       length = extract_normal (cd, ex_info, insn_value, 0, 0, 15, 16, 32, total_length, pc, & fields->f_uimm16);
 740       break;
 741     case OR1K_OPERAND_UIMM16_SPLIT :
 742       {
 743         length = extract_normal (cd, ex_info, insn_value, 0, 0, 25, 5, 32, total_length, pc, & fields->f_imm16_25_5);
 744         if (length <= 0) break;
 745         length = extract_normal (cd, ex_info, insn_value, 0, 0, 10, 11, 32, total_length, pc, & fields->f_imm16_10_11);
 746         if (length <= 0) break;
 747   FLD (f_uimm16_split) = ((UHI) (UINT) (((((FLD (f_imm16_25_5)) << (11))) | (FLD (f_imm16_10_11)))));
 748       }
 749       break;
 750     case OR1K_OPERAND_UIMM6 :
 751       length = extract_normal (cd, ex_info, insn_value, 0, 0, 5, 6, 32, total_length, pc, & fields->f_uimm6);
 752       break;
 753
 754     default :
 755       /* xgettext:c-format */
 756       opcodes_error_handler
 757         (_("internal error: unrecognized field %d while decoding insn"),
 758          opindex);
 759       abort ();
 760     }
 761
 762   return length;
 763 }
 764
 765 cgen_insert_fn * const or1k_cgen_insert_handlers[] =
 766 {
 767   insert_insn_normal,
 768 };
 769
 770 cgen_extract_fn * const or1k_cgen_extract_handlers[] =
 771 {
 772   extract_insn_normal,
 773 };
 774
 775 int or1k_cgen_get_int_operand     (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
 776 bfd_vma or1k_cgen_get_vma_operand (CGEN_CPU_DESC, int, const CGEN_FIELDS *);
 777
 778 /* Getting values from cgen_fields is handled by a collection of functions.
 779    They are distinguished by the type of the VALUE argument they return.
 780    TODO: floating point, inlining support, remove cases where result type
 781    not appropriate.  */
 782
 783 int
 784 or1k_cgen_get_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 785                              int opindex,
 786                              const CGEN_FIELDS * fields)
 787 {
 788   int value;
 789
 790   switch (opindex)
 791     {
 792     case OR1K_OPERAND_DISP26 :
 793       value = fields->f_disp26;
 794       break;
 795     case OR1K_OPERAND_RA :
 796       value = fields->f_r2;
 797       break;
 798     case OR1K_OPERAND_RADF :
 799       value = fields->f_r1;
 800       break;
 801     case OR1K_OPERAND_RASF :
 802       value = fields->f_r2;
 803       break;
 804     case OR1K_OPERAND_RB :
 805       value = fields->f_r3;
 806       break;
 807     case OR1K_OPERAND_RBDF :
 808       value = fields->f_r1;
 809       break;
 810     case OR1K_OPERAND_RBSF :
 811       value = fields->f_r3;
 812       break;
 813     case OR1K_OPERAND_RD :
 814       value = fields->f_r1;
 815       break;
 816     case OR1K_OPERAND_RDDF :
 817       value = fields->f_r1;
 818       break;
 819     case OR1K_OPERAND_RDSF :
 820       value = fields->f_r1;
 821       break;
 822     case OR1K_OPERAND_SIMM16 :
 823       value = fields->f_simm16;
 824       break;
 825     case OR1K_OPERAND_SIMM16_SPLIT :
 826       value = fields->f_simm16_split;
 827       break;
 828     case OR1K_OPERAND_UIMM16 :
 829       value = fields->f_uimm16;
 830       break;
 831     case OR1K_OPERAND_UIMM16_SPLIT :
 832       value = fields->f_uimm16_split;
 833       break;
 834     case OR1K_OPERAND_UIMM6 :
 835       value = fields->f_uimm6;
 836       break;
 837
 838     default :
 839       /* xgettext:c-format */
 840       opcodes_error_handler
 841         (_("internal error: unrecognized field %d while getting int operand"),
 842          opindex);
 843       abort ();
 844   }
 845
 846   return value;
 847 }
 848
 849 bfd_vma
 850 or1k_cgen_get_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 851                              int opindex,
 852                              const CGEN_FIELDS * fields)
 853 {
 854   bfd_vma value;
 855
 856   switch (opindex)
 857     {
 858     case OR1K_OPERAND_DISP26 :
 859       value = fields->f_disp26;
 860       break;
 861     case OR1K_OPERAND_RA :
 862       value = fields->f_r2;
 863       break;
 864     case OR1K_OPERAND_RADF :
 865       value = fields->f_r1;
 866       break;
 867     case OR1K_OPERAND_RASF :
 868       value = fields->f_r2;
 869       break;
 870     case OR1K_OPERAND_RB :
 871       value = fields->f_r3;
 872       break;
 873     case OR1K_OPERAND_RBDF :
 874       value = fields->f_r1;
 875       break;
 876     case OR1K_OPERAND_RBSF :
 877       value = fields->f_r3;
 878       break;
 879     case OR1K_OPERAND_RD :
 880       value = fields->f_r1;
 881       break;
 882     case OR1K_OPERAND_RDDF :
 883       value = fields->f_r1;
 884       break;
 885     case OR1K_OPERAND_RDSF :
 886       value = fields->f_r1;
 887       break;
 888     case OR1K_OPERAND_SIMM16 :
 889       value = fields->f_simm16;
 890       break;
 891     case OR1K_OPERAND_SIMM16_SPLIT :
 892       value = fields->f_simm16_split;
 893       break;
 894     case OR1K_OPERAND_UIMM16 :
 895       value = fields->f_uimm16;
 896       break;
 897     case OR1K_OPERAND_UIMM16_SPLIT :
 898       value = fields->f_uimm16_split;
 899       break;
 900     case OR1K_OPERAND_UIMM6 :
 901       value = fields->f_uimm6;
 902       break;
 903
 904     default :
 905       /* xgettext:c-format */
 906       opcodes_error_handler
 907         (_("internal error: unrecognized field %d while getting vma operand"),
 908          opindex);
 909       abort ();
 910   }
 911
 912   return value;
 913 }
 914
 915 void or1k_cgen_set_int_operand  (CGEN_CPU_DESC, int, CGEN_FIELDS *, int);
 916 void or1k_cgen_set_vma_operand  (CGEN_CPU_DESC, int, CGEN_FIELDS *, bfd_vma);
 917
 918 /* Stuffing values in cgen_fields is handled by a collection of functions.
 919    They are distinguished by the type of the VALUE argument they accept.
 920    TODO: floating point, inlining support, remove cases where argument type
 921    not appropriate.  */
 922
 923 void
 924 or1k_cgen_set_int_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 925                              int opindex,
 926                              CGEN_FIELDS * fields,
 927                              int value)
 928 {
 929   switch (opindex)
 930     {
 931     case OR1K_OPERAND_DISP26 :
 932       fields->f_disp26 = value;
 933       break;
 934     case OR1K_OPERAND_RA :
 935       fields->f_r2 = value;
 936       break;
 937     case OR1K_OPERAND_RADF :
 938       fields->f_r1 = value;
 939       break;
 940     case OR1K_OPERAND_RASF :
 941       fields->f_r2 = value;
 942       break;
 943     case OR1K_OPERAND_RB :
 944       fields->f_r3 = value;
 945       break;
 946     case OR1K_OPERAND_RBDF :
 947       fields->f_r1 = value;
 948       break;
 949     case OR1K_OPERAND_RBSF :
 950       fields->f_r3 = value;
 951       break;
 952     case OR1K_OPERAND_RD :
 953       fields->f_r1 = value;
 954       break;
 955     case OR1K_OPERAND_RDDF :
 956       fields->f_r1 = value;
 957       break;
 958     case OR1K_OPERAND_RDSF :
 959       fields->f_r1 = value;
 960       break;
 961     case OR1K_OPERAND_SIMM16 :
 962       fields->f_simm16 = value;
 963       break;
 964     case OR1K_OPERAND_SIMM16_SPLIT :
 965       fields->f_simm16_split = value;
 966       break;
 967     case OR1K_OPERAND_UIMM16 :
 968       fields->f_uimm16 = value;
 969       break;
 970     case OR1K_OPERAND_UIMM16_SPLIT :
 971       fields->f_uimm16_split = value;
 972       break;
 973     case OR1K_OPERAND_UIMM6 :
 974       fields->f_uimm6 = value;
 975       break;
 976
 977     default :
 978       /* xgettext:c-format */
 979       opcodes_error_handler
 980         (_("internal error: unrecognized field %d while setting int operand"),
 981          opindex);
 982       abort ();
 983   }
 984 }
 985
 986 void
 987 or1k_cgen_set_vma_operand (CGEN_CPU_DESC cd ATTRIBUTE_UNUSED,
 988                              int opindex,
 989                              CGEN_FIELDS * fields,
 990                              bfd_vma value)
 991 {
 992   switch (opindex)
 993     {
 994     case OR1K_OPERAND_DISP26 :
 995       fields->f_disp26 = value;
 996       break;
 997     case OR1K_OPERAND_RA :
 998       fields->f_r2 = value;
 999       break;
1000     case OR1K_OPERAND_RADF :
1001       fields->f_r1 = value;
1002       break;
1003     case OR1K_OPERAND_RASF :
1004       fields->f_r2 = value;
1005       break;
1006     case OR1K_OPERAND_RB :
1007       fields->f_r3 = value;
1008       break;
1009     case OR1K_OPERAND_RBDF :
1010       fields->f_r1 = value;
1011       break;
1012     case OR1K_OPERAND_RBSF :
1013       fields->f_r3 = value;
1014       break;
1015     case OR1K_OPERAND_RD :
1016       fields->f_r1 = value;
1017       break;
1018     case OR1K_OPERAND_RDDF :
1019       fields->f_r1 = value;
1020       break;
1021     case OR1K_OPERAND_RDSF :
1022       fields->f_r1 = value;
1023       break;
1024     case OR1K_OPERAND_SIMM16 :
1025       fields->f_simm16 = value;
1026       break;
1027     case OR1K_OPERAND_SIMM16_SPLIT :
1028       fields->f_simm16_split = value;
1029       break;
1030     case OR1K_OPERAND_UIMM16 :
1031       fields->f_uimm16 = value;
1032       break;
1033     case OR1K_OPERAND_UIMM16_SPLIT :
1034       fields->f_uimm16_split = value;
1035       break;
1036     case OR1K_OPERAND_UIMM6 :
1037       fields->f_uimm6 = value;
1038       break;
1039
1040     default :
1041       /* xgettext:c-format */
1042       opcodes_error_handler
1043         (_("internal error: unrecognized field %d while setting vma operand"),
1044          opindex);
1045       abort ();
1046   }
1047 }
1048
1049 /* Function to call before using the instruction builder tables.  */
1050
1051 void
1052 or1k_cgen_init_ibld_table (CGEN_CPU_DESC cd)
1053 {
1054   cd->insert_handlers = & or1k_cgen_insert_handlers[0];
1055   cd->extract_handlers = & or1k_cgen_extract_handlers[0];
1056
1057   cd->insert_operand = or1k_cgen_insert_operand;
1058   cd->extract_operand = or1k_cgen_extract_operand;
1059
1060   cd->get_int_operand = or1k_cgen_get_int_operand;
1061   cd->set_int_operand = or1k_cgen_set_int_operand;
1062   cd->get_vma_operand = or1k_cgen_get_vma_operand;
1063   cd->set_vma_operand = or1k_cgen_set_vma_operand;
1064 }