opcodes/hppa-dis.c

   1 /* Disassembler for the PA-RISC. Somewhat derived from sparc-pinsn.c.
   2    Copyright 1989, 1990, 1992, 1993, 1994, 1995, 1998, 1999, 2000, 2001
   3    Free Software Foundation, Inc.
   4
   5    Contributed by the Center for Software Science at the
   6    University of Utah (pa-gdb-bugs@cs.utah.edu).
   7
   8 This program is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 2 of the License, or
  11 (at your option) any later version.
  12
  13 This program is distributed in the hope that it will be useful,
  14 but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 GNU General Public License for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with this program; if not, write to the Free Software
  20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  21
  22 #include "sysdep.h"
  23 #include "dis-asm.h"
  24 #include "libhppa.h"
  25 #include "opcode/hppa.h"
  26
  27 /* Integer register names, indexed by the numbers which appear in the
  28    opcodes.  */
  29 static const char *const reg_names[] =
  30  {"flags", "r1", "rp", "r3", "r4", "r5", "r6", "r7", "r8", "r9",
  31   "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19",
  32   "r20", "r21", "r22", "r23", "r24", "r25", "r26", "dp", "ret0", "ret1",
  33   "sp", "r31"};
  34
  35 /* Floating point register names, indexed by the numbers which appear in the
  36    opcodes.  */
  37 static const char *const fp_reg_names[] =
  38  {"fpsr", "fpe2", "fpe4", "fpe6",
  39   "fr4", "fr5", "fr6", "fr7", "fr8",
  40   "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
  41   "fr16", "fr17", "fr18", "fr19", "fr20", "fr21", "fr22", "fr23",
  42   "fr24", "fr25", "fr26", "fr27", "fr28", "fr29", "fr30", "fr31"};
  43
  44 typedef unsigned int CORE_ADDR;
  45
  46 /* Get at various relevent fields of an instruction word.  */
  47
  48 #define MASK_5 0x1f
  49 #define MASK_10 0x3ff
  50 #define MASK_11 0x7ff
  51 #define MASK_14 0x3fff
  52 #define MASK_16 0xffff
  53 #define MASK_21 0x1fffff
  54
  55 /* These macros get bit fields using HP's numbering (MSB = 0) */
  56
  57 #define GET_FIELD(X, FROM, TO) \
  58   ((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1))
  59
  60 #define GET_BIT(X, WHICH) \
  61   GET_FIELD (X, WHICH, WHICH)
  62
  63 /* Some of these have been converted to 2-d arrays because they
  64    consume less storage this way.  If the maintenance becomes a
  65    problem, convert them back to const 1-d pointer arrays.  */
  66 static const char *const control_reg[] = {
  67   "rctr", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7",
  68   "pidr1", "pidr2", "ccr", "sar", "pidr3", "pidr4",
  69   "iva", "eiem", "itmr", "pcsq", "pcoq", "iir", "isr",
  70   "ior", "ipsw", "eirr", "tr0", "tr1", "tr2", "tr3",
  71   "tr4", "tr5", "tr6", "tr7"
  72 };
  73
  74 static const char *const compare_cond_names[] = {
  75   "", ",=", ",<", ",<=", ",<<", ",<<=", ",sv", ",od",
  76   ",tr", ",<>", ",>=", ",>", ",>>=", ",>>", ",nsv", ",ev"
  77 };
  78 static const char *const compare_cond_64_names[] = {
  79   "", ",*=", ",*<", ",*<=", ",*<<", ",*<<=", ",*sv", ",*od",
  80   ",*tr", ",*<>", ",*>=", ",*>", ",*>>=", ",*>>", ",*nsv", ",*ev"
  81 };
  82 static const char *const cmpib_cond_64_names[] = {
  83   ",*<<", ",*=", ",*<", ",*<=", ",*>>=", ",*<>", ",*>=", ",*>"
  84 };
  85 static const char *const add_cond_names[] = {
  86   "", ",=", ",<", ",<=", ",nuv", ",znv", ",sv", ",od",
  87   ",tr", ",<>", ",>=", ",>", ",uv", ",vnz", ",nsv", ",ev"
  88 };
  89 static const char *const add_cond_64_names[] = {
  90   "", ",*=", ",*<", ",*<=", ",*nuv", ",*znv", ",*sv", ",*od",
  91   ",*tr", ",*<>", ",*>=", ",*>", ",*uv", ",*vnz", ",*nsv", ",*ev"
  92 };
  93 static const char *const wide_add_cond_names[] = {
  94   "", ",=", ",<", ",<=", ",nuv", ",*=", ",*<", ",*<=",
  95   ",tr", ",<>", ",>=", ",>", ",uv", ",*<>", ",*>=", ",*>"
  96 };
  97 static const char *const logical_cond_names[] = {
  98   "", ",=", ",<", ",<=", 0, 0, 0, ",od",
  99   ",tr", ",<>", ",>=", ",>", 0, 0, 0, ",ev"};
 100 static const char *const logical_cond_64_names[] = {
 101   "", ",*=", ",*<", ",*<=", 0, 0, 0, ",*od",
 102   ",*tr", ",*<>", ",*>=", ",*>", 0, 0, 0, ",*ev"};
 103 static const char *const unit_cond_names[] = {
 104   "", ",swz", ",sbz", ",shz", ",sdc", ",swc", ",sbc", ",shc",
 105   ",tr", ",nwz", ",nbz", ",nhz", ",ndc", ",nwc", ",nbc", ",nhc"
 106 };
 107 static const char *const unit_cond_64_names[] = {
 108   "", ",*swz", ",*sbz", ",*shz", ",*sdc", ",*swc", ",*sbc", ",*shc",
 109   ",*tr", ",*nwz", ",*nbz", ",*nhz", ",*ndc", ",*nwc", ",*nbc", ",*nhc"
 110 };
 111 static const char *const shift_cond_names[] = {
 112   "", ",=", ",<", ",od", ",tr", ",<>", ",>=", ",ev"
 113 };
 114 static const char *const shift_cond_64_names[] = {
 115   "", ",*=", ",*<", ",*od", ",*tr", ",*<>", ",*>=", ",*ev"
 116 };
 117 static const char *const bb_cond_64_names[] = {
 118   ",*<", ",*>="
 119 };
 120 static const char *const index_compl_names[] = {"", ",m", ",s", ",sm"};
 121 static const char *const short_ldst_compl_names[] = {"", ",ma", "", ",mb"};
 122 static const char *const short_bytes_compl_names[] = {
 123   "", ",b,m", ",e", ",e,m"
 124 };
 125 static const char *const float_format_names[] = {",sgl", ",dbl", "", ",quad"};
 126 static const char *const float_comp_names[] =
 127 {
 128   ",false?", ",false", ",?", ",!<=>", ",=", ",=t", ",?=", ",!<>",
 129   ",!?>=", ",<", ",?<", ",!>=", ",!?>", ",<=", ",?<=", ",!>",
 130   ",!?<=", ",>", ",?>", ",!<=", ",!?<", ",>=", ",?>=", ",!<",
 131   ",!?=", ",<>", ",!=", ",!=t", ",!?", ",<=>", ",true?", ",true"
 132 };
 133 static const char *const signed_unsigned_names[] = {",u", ",s"};
 134 static const char *const mix_half_names[] = {",l", ",r"};
 135 static const char *const saturation_names[] = {",us", ",ss", 0, ""};
 136 static const char *const read_write_names[] = {",r", ",w"};
 137 static const char *const add_compl_names[] = { 0, "", ",l", ",tsv" };
 138
 139 /* For a bunch of different instructions form an index into a
 140    completer name table.  */
 141 #define GET_COMPL(insn) (GET_FIELD (insn, 26, 26) | \
 142                          GET_FIELD (insn, 18, 18) << 1)
 143
 144 #define GET_COND(insn) (GET_FIELD ((insn), 16, 18) + \
 145                         (GET_FIELD ((insn), 19, 19) ? 8 : 0))
 146
 147 static void fput_reg PARAMS ((unsigned int, disassemble_info *));
 148 static void fput_fp_reg PARAMS ((unsigned int, disassemble_info *));
 149 static void fput_fp_reg_r PARAMS ((unsigned int, disassemble_info *));
 150 static void fput_creg PARAMS ((unsigned int, disassemble_info *));
 151 static void fput_const PARAMS ((unsigned int, disassemble_info *));
 152 static int extract_3 PARAMS ((unsigned int));
 153 static int extract_5_load PARAMS ((unsigned int));
 154 static int extract_5_store PARAMS ((unsigned int));
 155 static unsigned extract_5r_store PARAMS ((unsigned int));
 156 static unsigned extract_5R_store PARAMS ((unsigned int));
 157 static unsigned extract_10U_store PARAMS ((unsigned int));
 158 static unsigned extract_5Q_store PARAMS ((unsigned int));
 159 static int extract_11 PARAMS ((unsigned int));
 160 static int extract_14 PARAMS ((unsigned int));
 161 static int extract_16 PARAMS ((unsigned int));
 162 static int extract_21 PARAMS ((unsigned int));
 163 static int extract_12 PARAMS ((unsigned int));
 164 static int extract_17 PARAMS ((unsigned int));
 165 static int extract_22 PARAMS ((unsigned int));
 166
 167 /* Utility function to print registers.  Put these first, so gcc's function
 168    inlining can do its stuff.  */
 169
 170 #define fputs_filtered(STR,F)   (*info->fprintf_func) (info->stream, "%s", STR)
 171
 172 static void
 173 fput_reg (reg, info)
 174      unsigned reg;
 175      disassemble_info *info;
 176 {
 177   (*info->fprintf_func) (info->stream, reg ? reg_names[reg] : "r0");
 178 }
 179
 180 static void
 181 fput_fp_reg (reg, info)
 182      unsigned reg;
 183      disassemble_info *info;
 184 {
 185   (*info->fprintf_func) (info->stream, reg ? fp_reg_names[reg] : "fr0");
 186 }
 187
 188 static void
 189 fput_fp_reg_r (reg, info)
 190      unsigned reg;
 191      disassemble_info *info;
 192 {
 193   /* Special case floating point exception registers.  */
 194   if (reg < 4)
 195     (*info->fprintf_func) (info->stream, "fpe%d", reg * 2 + 1);
 196   else
 197     (*info->fprintf_func) (info->stream, "%sR", reg ? fp_reg_names[reg]
 198                                                     : "fr0");
 199 }
 200
 201 static void
 202 fput_creg (reg, info)
 203      unsigned reg;
 204      disassemble_info *info;
 205 {
 206   (*info->fprintf_func) (info->stream, control_reg[reg]);
 207 }
 208
 209 /* Print constants with sign.  */
 210
 211 static void
 212 fput_const (num, info)
 213      unsigned num;
 214      disassemble_info *info;
 215 {
 216   if ((int)num < 0)
 217     (*info->fprintf_func) (info->stream, "-%x", -(int)num);
 218   else
 219     (*info->fprintf_func) (info->stream, "%x", num);
 220 }
 221
 222 /* Routines to extract various sized constants out of hppa
 223    instructions.  */
 224
 225 /* Extract a 3-bit space register number from a be, ble, mtsp or mfsp.  */
 226 static int
 227 extract_3 (word)
 228      unsigned word;
 229 {
 230   return GET_FIELD (word, 18, 18) << 2 | GET_FIELD (word, 16, 17);
 231 }
 232
 233 static int
 234 extract_5_load (word)
 235      unsigned word;
 236 {
 237   return low_sign_extend (word >> 16 & MASK_5, 5);
 238 }
 239
 240 /* Extract the immediate field from a st{bhw}s instruction.  */
 241 static int
 242 extract_5_store (word)
 243      unsigned word;
 244 {
 245   return low_sign_extend (word & MASK_5, 5);
 246 }
 247
 248 /* Extract the immediate field from a break instruction.  */
 249 static unsigned
 250 extract_5r_store (word)
 251      unsigned word;
 252 {
 253   return (word & MASK_5);
 254 }
 255
 256 /* Extract the immediate field from a {sr}sm instruction.  */
 257 static unsigned
 258 extract_5R_store (word)
 259      unsigned word;
 260 {
 261   return (word >> 16 & MASK_5);
 262 }
 263
 264 /* Extract the 10 bit immediate field from a {sr}sm instruction.  */
 265 static unsigned
 266 extract_10U_store (word)
 267      unsigned word;
 268 {
 269   return (word >> 16 & MASK_10);
 270 }
 271
 272 /* Extract the immediate field from a bb instruction.  */
 273 static unsigned
 274 extract_5Q_store (word)
 275      unsigned word;
 276 {
 277   return (word >> 21 & MASK_5);
 278 }
 279
 280 /* Extract an 11 bit immediate field.  */
 281 static int
 282 extract_11 (word)
 283      unsigned word;
 284 {
 285   return low_sign_extend (word & MASK_11, 11);
 286 }
 287
 288 /* Extract a 14 bit immediate field.  */
 289 static int
 290 extract_14 (word)
 291      unsigned word;
 292 {
 293   return low_sign_extend (word & MASK_14, 14);
 294 }
 295
 296 /* Extract a 16 bit immediate field (PA2.0 wide only).  */
 297 static int
 298 extract_16 (word)
 299      unsigned word;
 300 {
 301   int m15, m0, m1;
 302   m0 = GET_BIT (word, 16);
 303   m1 = GET_BIT (word, 17);
 304   m15 = GET_BIT (word, 31);
 305   word = (word >> 1) & 0x1fff;
 306   word = word | (m15 << 15) | ((m15 ^ m0) << 14) | ((m15 ^ m1) << 13);
 307   return sign_extend (word, 16);
 308 }
 309
 310 /* Extract a 21 bit constant.  */
 311
 312 static int
 313 extract_21 (word)
 314      unsigned word;
 315 {
 316   int val;
 317
 318   word &= MASK_21;
 319   word <<= 11;
 320   val = GET_FIELD (word, 20, 20);
 321   val <<= 11;
 322   val |= GET_FIELD (word, 9, 19);
 323   val <<= 2;
 324   val |= GET_FIELD (word, 5, 6);
 325   val <<= 5;
 326   val |= GET_FIELD (word, 0, 4);
 327   val <<= 2;
 328   val |= GET_FIELD (word, 7, 8);
 329   return sign_extend (val, 21) << 11;
 330 }
 331
 332 /* Extract a 12 bit constant from branch instructions.  */
 333
 334 static int
 335 extract_12 (word)
 336      unsigned word;
 337 {
 338   return sign_extend (GET_FIELD (word, 19, 28) |
 339                       GET_FIELD (word, 29, 29) << 10 |
 340                       (word & 0x1) << 11, 12) << 2;
 341 }
 342
 343 /* Extract a 17 bit constant from branch instructions, returning the
 344    19 bit signed value.  */
 345
 346 static int
 347 extract_17 (word)
 348      unsigned word;
 349 {
 350   return sign_extend (GET_FIELD (word, 19, 28) |
 351                       GET_FIELD (word, 29, 29) << 10 |
 352                       GET_FIELD (word, 11, 15) << 11 |
 353                       (word & 0x1) << 16, 17) << 2;
 354 }
 355
 356 static int
 357 extract_22 (word)
 358      unsigned word;
 359 {
 360   return sign_extend (GET_FIELD (word, 19, 28) |
 361                       GET_FIELD (word, 29, 29) << 10 |
 362                       GET_FIELD (word, 11, 15) << 11 |
 363                       GET_FIELD (word, 6, 10) << 16 |
 364                       (word & 0x1) << 21, 22) << 2;
 365 }
 366
 367 /* Print one instruction.  */
 368 int
 369 print_insn_hppa (memaddr, info)
 370      bfd_vma memaddr;
 371      disassemble_info *info;
 372 {
 373   bfd_byte buffer[4];
 374   unsigned int insn, i;
 375
 376   {
 377     int status =
 378       (*info->read_memory_func) (memaddr, buffer, sizeof (buffer), info);
 379     if (status != 0)
 380       {
 381         (*info->memory_error_func) (status, memaddr, info);
 382         return -1;
 383       }
 384   }
 385
 386   insn = bfd_getb32 (buffer);
 387
 388   for (i = 0; i < NUMOPCODES; ++i)
 389     {
 390       const struct pa_opcode *opcode = &pa_opcodes[i];
 391       if ((insn & opcode->mask) == opcode->match)
 392         {
 393           register const char *s;
 394 #ifndef BFD64
 395           if (opcode->arch == pa20w)
 396             continue;
 397 #endif
 398           (*info->fprintf_func) (info->stream, "%s", opcode->name);
 399
 400           if (!strchr ("cfCY?-+nHNZFIuv", opcode->args[0]))
 401             (*info->fprintf_func) (info->stream, " ");
 402           for (s = opcode->args; *s != '\0'; ++s)
 403             {
 404               switch (*s)
 405                 {
 406                 case 'x':
 407                   fput_reg (GET_FIELD (insn, 11, 15), info);
 408                   break;
 409                 case 'a':
 410                 case 'b':
 411                   fput_reg (GET_FIELD (insn, 6, 10), info);
 412                   break;
 413                 case '^':
 414                   fput_creg (GET_FIELD (insn, 6, 10), info);
 415                   break;
 416                 case 't':
 417                   fput_reg (GET_FIELD (insn, 27, 31), info);
 418                   break;
 419
 420                 /* Handle floating point registers.  */
 421                 case 'f':
 422                   switch (*++s)
 423                     {
 424                     case 't':
 425                       fput_fp_reg (GET_FIELD (insn, 27, 31), info);
 426                       break;
 427                     case 'T':
 428                       if (GET_FIELD (insn, 25, 25))
 429                         fput_fp_reg_r (GET_FIELD (insn, 27, 31), info);
 430                       else
 431                         fput_fp_reg (GET_FIELD (insn, 27, 31), info);
 432                       break;
 433                     case 'a':
 434                       if (GET_FIELD (insn, 25, 25))
 435                         fput_fp_reg_r (GET_FIELD (insn, 6, 10), info);
 436                       else
 437                         fput_fp_reg (GET_FIELD (insn, 6, 10), info);
 438                       break;
 439
 440                     /* 'fA' will not generate a space before the regsiter
 441                         name.  Normally that is fine.  Except that it
 442                         causes problems with xmpyu which has no FP format
 443                         completer.  */
 444                     case 'X':
 445                       fputs_filtered (" ", info);
 446
 447                     /* FALLTHRU */
 448
 449                     case 'A':
 450                       if (GET_FIELD (insn, 24, 24))
 451                         fput_fp_reg_r (GET_FIELD (insn, 6, 10), info);
 452                       else
 453                         fput_fp_reg (GET_FIELD (insn, 6, 10), info);
 454
 455                       break;
 456                     case 'b':
 457                       if (GET_FIELD (insn, 25, 25))
 458                         fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
 459                       else
 460                         fput_fp_reg (GET_FIELD (insn, 11, 15), info);
 461                       break;
 462                     case 'B':
 463                       if (GET_FIELD (insn, 19, 19))
 464                         fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
 465                       else
 466                         fput_fp_reg (GET_FIELD (insn, 11, 15), info);
 467                       break;
 468                     case 'C':
 469                       {
 470                         int reg = GET_FIELD (insn, 21, 22);
 471                         reg |= GET_FIELD (insn, 16, 18) << 2;
 472                         if (GET_FIELD (insn, 23, 23) != 0)
 473                           fput_fp_reg_r (reg, info);
 474                         else
 475                           fput_fp_reg (reg, info);
 476                         break;
 477                       }
 478                     case 'i':
 479                       {
 480                         int reg = GET_FIELD (insn, 6, 10);
 481
 482                         reg |= (GET_FIELD (insn, 26, 26) << 4);
 483                         fput_fp_reg (reg, info);
 484                         break;
 485                       }
 486                     case 'j':
 487                       {
 488                         int reg = GET_FIELD (insn, 11, 15);
 489
 490                         reg |= (GET_FIELD (insn, 26, 26) << 4);
 491                         fput_fp_reg (reg, info);
 492                         break;
 493                       }
 494                     case 'k':
 495                       {
 496                         int reg = GET_FIELD (insn, 27, 31);
 497
 498                         reg |= (GET_FIELD (insn, 26, 26) << 4);
 499                         fput_fp_reg (reg, info);
 500                         break;
 501                       }
 502                     case 'l':
 503                       {
 504                         int reg = GET_FIELD (insn, 21, 25);
 505
 506                         reg |= (GET_FIELD (insn, 26, 26) << 4);
 507                         fput_fp_reg (reg, info);
 508                         break;
 509                       }
 510                     case 'm':
 511                       {
 512                         int reg = GET_FIELD (insn, 16, 20);
 513
 514                         reg |= (GET_FIELD (insn, 26, 26) << 4);
 515                         fput_fp_reg (reg, info);
 516                         break;
 517                       }
 518
 519                     /* 'fe' will not generate a space before the register
 520                         name.  Normally that is fine.  Except that it
 521                         causes problems with fstw fe,y(b) which has no FP
 522                         format completer.  */
 523                     case 'E':
 524                       fputs_filtered (" ", info);
 525
 526                     /* FALLTHRU */
 527
 528                     case 'e':
 529                       if (GET_FIELD (insn, 30, 30))
 530                         fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
 531                       else
 532                         fput_fp_reg (GET_FIELD (insn, 11, 15), info);
 533                       break;
 534                     case 'x':
 535                       fput_fp_reg (GET_FIELD (insn, 11, 15), info);
 536                       break;
 537                     }
 538                   break;
 539
 540                 case '5':
 541                   fput_const (extract_5_load (insn), info);
 542                   break;
 543                 case 's':
 544                   (*info->fprintf_func) (info->stream,
 545                                          "sr%d", GET_FIELD (insn, 16, 17));
 546                   break;
 547
 548                 case 'S':
 549                   (*info->fprintf_func) (info->stream, "sr%d", extract_3 (insn));
 550                   break;
 551
 552                 /* Handle completers.  */
 553                 case 'c':
 554                   switch (*++s)
 555                     {
 556                     case 'x':
 557                       (*info->fprintf_func) (info->stream, "%s ",
 558                                              index_compl_names[GET_COMPL (insn)]);
 559                       break;
 560                     case 'm':
 561                       (*info->fprintf_func) (info->stream, "%s ",
 562                                              short_ldst_compl_names[GET_COMPL (insn)]);
 563                       break;
 564                     case 's':
 565                       (*info->fprintf_func) (info->stream, "%s ",
 566                                              short_bytes_compl_names[GET_COMPL (insn)]);
 567                       break;
 568                     case 'c':
 569                     case 'C':
 570                       switch (GET_FIELD (insn, 20, 21))
 571                         {
 572                         case 1:
 573                           (*info->fprintf_func) (info->stream, ",bc ");
 574                           break;
 575                         case 2:
 576                           (*info->fprintf_func) (info->stream, ",sl ");
 577                           break;
 578                         default:
 579                           (*info->fprintf_func) (info->stream, " ");
 580                         }
 581                       break;
 582                     case 'd':
 583                       switch (GET_FIELD (insn, 20, 21))
 584                         {
 585                         case 1:
 586                           (*info->fprintf_func) (info->stream, ",co ");
 587                           break;
 588                         default:
 589                           (*info->fprintf_func) (info->stream, " ");
 590                         }
 591                       break;
 592                     case 'o':
 593                       (*info->fprintf_func) (info->stream, ",o");
 594                       break;
 595                     case 'g':
 596                       (*info->fprintf_func) (info->stream, ",gate");
 597                       break;
 598                     case 'p':
 599                       (*info->fprintf_func) (info->stream, ",l,push");
 600                       break;
 601                     case 'P':
 602                       (*info->fprintf_func) (info->stream, ",pop");
 603                       break;
 604                     case 'l':
 605                     case 'L':
 606                       (*info->fprintf_func) (info->stream, ",l");
 607                       break;
 608                     case 'w':
 609                       (*info->fprintf_func) (info->stream, "%s ",
 610                                              read_write_names[GET_FIELD (insn, 25, 25)]);
 611                       break;
 612                     case 'W':
 613                       (*info->fprintf_func) (info->stream, ",w");
 614                       break;
 615                     case 'r':
 616                       if (GET_FIELD (insn, 23, 26) == 5)
 617                         (*info->fprintf_func) (info->stream, ",r");
 618                       break;
 619                     case 'Z':
 620                       if (GET_FIELD (insn, 26, 26))
 621                         (*info->fprintf_func) (info->stream, ",m ");
 622                       else
 623                         (*info->fprintf_func) (info->stream, " ");
 624                       break;
 625                     case 'i':
 626                       if (GET_FIELD (insn, 25, 25))
 627                         (*info->fprintf_func) (info->stream, ",i");
 628                       break;
 629                     case 'z':
 630                       if (!GET_FIELD (insn, 21, 21))
 631                         (*info->fprintf_func) (info->stream, ",z");
 632                       break;
 633                     case 'a':
 634                       (*info->fprintf_func)
 635                         (info->stream, "%s", add_compl_names[GET_FIELD
 636                                                             (insn, 20, 21)]);
 637                       break;
 638                     case 'Y':
 639                       (*info->fprintf_func)
 640                         (info->stream, ",dc%s", add_compl_names[GET_FIELD
 641                                                                (insn, 20, 21)]);
 642                       break;
 643                     case 'y':
 644                       (*info->fprintf_func)
 645                         (info->stream, ",c%s", add_compl_names[GET_FIELD
 646                                                               (insn, 20, 21)]);
 647                       break;
 648                     case 'v':
 649                       if (GET_FIELD (insn, 20, 20))
 650                         (*info->fprintf_func) (info->stream, ",tsv");
 651                       break;
 652                     case 't':
 653                       (*info->fprintf_func) (info->stream, ",tc");
 654                       if (GET_FIELD (insn, 20, 20))
 655                         (*info->fprintf_func) (info->stream, ",tsv");
 656                       break;
 657                     case 'B':
 658                       (*info->fprintf_func) (info->stream, ",db");
 659                       if (GET_FIELD (insn, 20, 20))
 660                         (*info->fprintf_func) (info->stream, ",tsv");
 661                       break;
 662                     case 'b':
 663                       (*info->fprintf_func) (info->stream, ",b");
 664                       if (GET_FIELD (insn, 20, 20))
 665                         (*info->fprintf_func) (info->stream, ",tsv");
 666                       break;
 667                     case 'T':
 668                       if (GET_FIELD (insn, 25, 25))
 669                         (*info->fprintf_func) (info->stream, ",tc");
 670                       break;
 671                     case 'S':
 672                       /* EXTRD/W has a following condition.  */
 673                       if (*(s + 1) == '?')
 674                         (*info->fprintf_func)
 675                           (info->stream, "%s", signed_unsigned_names[GET_FIELD
 676                                                                     (insn, 21, 21)]);
 677                       else
 678                         (*info->fprintf_func)
 679                           (info->stream, "%s ", signed_unsigned_names[GET_FIELD
 680                                                                      (insn, 21, 21)]);
 681                       break;
 682                     case 'h':
 683                       (*info->fprintf_func)
 684                           (info->stream, "%s", mix_half_names[GET_FIELD
 685                                                              (insn, 17, 17)]);
 686                       break;
 687                     case 'H':
 688                       (*info->fprintf_func)
 689                           (info->stream, "%s", saturation_names[GET_FIELD
 690                                                                (insn, 24, 25)]);
 691                       break;
 692                     case '*':
 693                       (*info->fprintf_func)
 694                           (info->stream, ",%d%d%d%d ",
 695                            GET_FIELD (insn, 17, 18), GET_FIELD (insn, 20, 21),
 696                            GET_FIELD (insn, 22, 23), GET_FIELD (insn, 24, 25));
 697                       break;
 698
 699                     case 'q':
 700                       {
 701                         int m, a;
 702
 703                         m = GET_FIELD (insn, 28, 28);
 704                         a = GET_FIELD (insn, 29, 29);
 705
 706                         if (m && !a)
 707                           fputs_filtered (",ma ", info);
 708                         else if (m && a)
 709                           fputs_filtered (",mb ", info);
 710                         else
 711                           fputs_filtered (" ", info);
 712                         break;
 713                       }
 714
 715                     case 'J':
 716                       {
 717                         int opc = GET_FIELD (insn, 0, 5);
 718
 719                         if (opc == 0x16 || opc == 0x1e)
 720                           {
 721                             if (GET_FIELD (insn, 29, 29) == 0)
 722                               fputs_filtered (",ma ", info);
 723                             else
 724                               fputs_filtered (",mb ", info);
 725                           }
 726                         else
 727                           fputs_filtered (" ", info);
 728                         break;
 729                       }
 730
 731                     case 'e':
 732                       {
 733                         int opc = GET_FIELD (insn, 0, 5);
 734
 735                         if (opc == 0x13 || opc == 0x1b)
 736                           {
 737                             if (GET_FIELD (insn, 18, 18) == 1)
 738                               fputs_filtered (",mb ", info);
 739                             else
 740                               fputs_filtered (",ma ", info);
 741                           }
 742                         else if (opc == 0x17 || opc == 0x1f)
 743                           {
 744                             if (GET_FIELD (insn, 31, 31) == 1)
 745                               fputs_filtered (",ma ", info);
 746                             else
 747                               fputs_filtered (",mb ", info);
 748                           }
 749                         else
 750                           fputs_filtered (" ", info);
 751
 752                         break;
 753                       }
 754                     }
 755                   break;
 756
 757                 /* Handle conditions.  */
 758                 case '?':
 759                   {
 760                     s++;
 761                     switch (*s)
 762                       {
 763                       case 'f':
 764                         (*info->fprintf_func) (info->stream, "%s ",
 765                                                float_comp_names[GET_FIELD
 766                                                                (insn, 27, 31)]);
 767                         break;
 768
 769                       /* these four conditions are for the set of instructions
 770                            which distinguish true/false conditions by opcode
 771                            rather than by the 'f' bit (sigh): comb, comib,
 772                            addb, addib */
 773                       case 't':
 774                         fputs_filtered (compare_cond_names[GET_FIELD (insn, 16, 18)],
 775                                         info);
 776                         break;
 777                       case 'n':
 778                         fputs_filtered (compare_cond_names[GET_FIELD (insn, 16, 18)
 779                                         + GET_FIELD (insn, 4, 4) * 8], info);
 780                         break;
 781                       case 'N':
 782                         fputs_filtered (compare_cond_64_names[GET_FIELD (insn, 16, 18)
 783                                         + GET_FIELD (insn, 2, 2) * 8], info);
 784                         break;
 785                       case 'Q':
 786                         fputs_filtered (cmpib_cond_64_names[GET_FIELD (insn, 16, 18)],
 787                                         info);
 788                         break;
 789                       case '@':
 790                         fputs_filtered (add_cond_names[GET_FIELD (insn, 16, 18)
 791                                         + GET_FIELD (insn, 4, 4) * 8], info);
 792                         break;
 793                       case 's':
 794                         (*info->fprintf_func) (info->stream, "%s ",
 795                                                compare_cond_names[GET_COND (insn)]);
 796                         break;
 797                       case 'S':
 798                         (*info->fprintf_func) (info->stream, "%s ",
 799                                                compare_cond_64_names[GET_COND (insn)]);
 800                         break;
 801                       case 'a':
 802                         (*info->fprintf_func) (info->stream, "%s ",
 803                                                add_cond_names[GET_COND (insn)]);
 804                         break;
 805                       case 'A':
 806                         (*info->fprintf_func) (info->stream, "%s ",
 807                                                add_cond_64_names[GET_COND (insn)]);
 808                         break;
 809                       case 'd':
 810                         (*info->fprintf_func) (info->stream, "%s",
 811                                                add_cond_names[GET_FIELD (insn, 16, 18)]);
 812                         break;
 813
 814                       case 'W':
 815                         (*info->fprintf_func)
 816                           (info->stream, "%s",
 817                            wide_add_cond_names[GET_FIELD (insn, 16, 18) +
 818                                               GET_FIELD (insn, 4, 4) * 8]);
 819                         break;
 820
 821                       case 'l':
 822                         (*info->fprintf_func) (info->stream, "%s ",
 823                                                logical_cond_names[GET_COND (insn)]);
 824                         break;
 825                       case 'L':
 826                         (*info->fprintf_func) (info->stream, "%s ",
 827                                                logical_cond_64_names[GET_COND (insn)]);
 828                         break;
 829                       case 'u':
 830                         (*info->fprintf_func) (info->stream, "%s ",
 831                                                unit_cond_names[GET_COND (insn)]);
 832                         break;
 833                       case 'U':
 834                         (*info->fprintf_func) (info->stream, "%s ",
 835                                                unit_cond_64_names[GET_COND (insn)]);
 836                         break;
 837                       case 'y':
 838                       case 'x':
 839                       case 'b':
 840                         (*info->fprintf_func)
 841                           (info->stream, "%s",
 842                            shift_cond_names[GET_FIELD (insn, 16, 18)]);
 843
 844                         /* If the next character in args is 'n', it will handle
 845                            putting out the space.  */
 846                         if (s[1] != 'n')
 847                           (*info->fprintf_func) (info->stream, " ");
 848                         break;
 849                       case 'X':
 850                         (*info->fprintf_func) (info->stream, "%s ",
 851                                                shift_cond_64_names[GET_FIELD (insn, 16, 18)]);
 852                         break;
 853                       case 'B':
 854                         (*info->fprintf_func)
 855                           (info->stream, "%s",
 856                            bb_cond_64_names[GET_FIELD (insn, 16, 16)]);
 857
 858                         /* If the next character in args is 'n', it will handle
 859                            putting out the space.  */
 860                         if (s[1] != 'n')
 861                           (*info->fprintf_func) (info->stream, " ");
 862                         break;
 863                       }
 864                     break;
 865                   }
 866
 867                 case 'V':
 868                   fput_const (extract_5_store (insn), info);
 869                   break;
 870                 case 'r':
 871                   fput_const (extract_5r_store (insn), info);
 872                   break;
 873                 case 'R':
 874                   fput_const (extract_5R_store (insn), info);
 875                   break;
 876                 case 'U':
 877                   fput_const (extract_10U_store (insn), info);
 878                   break;
 879                 case 'B':
 880                 case 'Q':
 881                   fput_const (extract_5Q_store (insn), info);
 882                   break;
 883                 case 'i':
 884                   fput_const (extract_11 (insn), info);
 885                   break;
 886                 case 'j':
 887                   fput_const (extract_14 (insn), info);
 888                   break;
 889                 case 'k':
 890                   fput_const (extract_21 (insn), info);
 891                   break;
 892                 case '<':
 893                 case 'l':
 894                   /* 16-bit long disp., PA2.0 wide only.  */
 895                   fput_const (extract_16 (insn), info);
 896                   break;
 897                 case 'n':
 898                   if (insn & 0x2)
 899                     (*info->fprintf_func) (info->stream, ",n ");
 900                   else
 901                     (*info->fprintf_func) (info->stream, " ");
 902                   break;
 903                 case 'N':
 904                   if ((insn & 0x20) && s[1])
 905                     (*info->fprintf_func) (info->stream, ",n ");
 906                   else if (insn & 0x20)
 907                     (*info->fprintf_func) (info->stream, ",n");
 908                   else if (s[1])
 909                     (*info->fprintf_func) (info->stream, " ");
 910                   break;
 911                 case 'w':
 912                   (*info->print_address_func) (memaddr + 8 + extract_12 (insn),
 913                                                info);
 914                   break;
 915                 case 'W':
 916                   /* 17 bit PC-relative branch.  */
 917                   (*info->print_address_func) ((memaddr + 8
 918                                                 + extract_17 (insn)),
 919                                                info);
 920                   break;
 921                 case 'z':
 922                   /* 17 bit displacement.  This is an offset from a register
 923                      so it gets disasssembled as just a number, not any sort
 924                      of address.  */
 925                   fput_const (extract_17 (insn), info);
 926                   break;
 927
 928                 case 'Z':
 929                   /* addil %r1 implicit output.  */
 930                   (*info->fprintf_func) (info->stream, "%%r1");
 931                   break;
 932
 933                 case 'Y':
 934                   /* be,l %sr0,%r31 implicit output.  */
 935                   (*info->fprintf_func) (info->stream, "%%sr0,%%r31");
 936                   break;
 937
 938                 case '@':
 939                   (*info->fprintf_func) (info->stream, "0");
 940                   break;
 941
 942                 case '.':
 943                   (*info->fprintf_func) (info->stream, "%d",
 944                                     GET_FIELD (insn, 24, 25));
 945                   break;
 946                 case '*':
 947                   (*info->fprintf_func) (info->stream, "%d",
 948                                     GET_FIELD (insn, 22, 25));
 949                   break;
 950                 case '!':
 951                   (*info->fprintf_func) (info->stream, "%%sar");
 952                   break;
 953                 case 'p':
 954                   (*info->fprintf_func) (info->stream, "%d",
 955                                     31 - GET_FIELD (insn, 22, 26));
 956                   break;
 957                 case '~':
 958                   {
 959                     int num;
 960                     num = GET_FIELD (insn, 20, 20) << 5;
 961                     num |= GET_FIELD (insn, 22, 26);
 962                     (*info->fprintf_func) (info->stream, "%d", 63 - num);
 963                     break;
 964                   }
 965                 case 'P':
 966                   (*info->fprintf_func) (info->stream, "%d",
 967                                     GET_FIELD (insn, 22, 26));
 968                   break;
 969                 case 'q':
 970                   {
 971                     int num;
 972                     num = GET_FIELD (insn, 20, 20) << 5;
 973                     num |= GET_FIELD (insn, 22, 26);
 974                     (*info->fprintf_func) (info->stream, "%d", num);
 975                     break;
 976                   }
 977                 case 'T':
 978                   (*info->fprintf_func) (info->stream, "%d",
 979                                     32 - GET_FIELD (insn, 27, 31));
 980                   break;
 981                 case '%':
 982                   {
 983                     int num;
 984                     num = (GET_FIELD (insn, 23, 23) + 1) * 32;
 985                     num -= GET_FIELD (insn, 27, 31);
 986                     (*info->fprintf_func) (info->stream, "%d", num);
 987                     break;
 988                   }
 989                 case '|':
 990                   {
 991                     int num;
 992                     num = (GET_FIELD (insn, 19, 19) + 1) * 32;
 993                     num -= GET_FIELD (insn, 27, 31);
 994                     (*info->fprintf_func) (info->stream, "%d", num);
 995                     break;
 996                   }
 997                 case '$':
 998                   fput_const (GET_FIELD (insn, 20, 28), info);
 999                   break;
1000                 case 'A':
1001                   fput_const (GET_FIELD (insn, 6, 18), info);
1002                   break;
1003                 case 'D':
1004                   fput_const (GET_FIELD (insn, 6, 31), info);
1005                   break;
1006                 case 'v':
1007                   (*info->fprintf_func) (info->stream, ",%d", GET_FIELD (insn, 23, 25));
1008                   break;
1009                 case 'O':
1010                   fput_const ((GET_FIELD (insn, 6,20) << 5 |
1011                                GET_FIELD (insn, 27, 31)), info);
1012                   break;
1013                 case 'o':
1014                   fput_const (GET_FIELD (insn, 6, 20), info);
1015                   break;
1016                 case '2':
1017                   fput_const ((GET_FIELD (insn, 6, 22) << 5 |
1018                                GET_FIELD (insn, 27, 31)), info);
1019                   break;
1020                 case '1':
1021                   fput_const ((GET_FIELD (insn, 11, 20) << 5 |
1022                                GET_FIELD (insn, 27, 31)), info);
1023                   break;
1024                 case '0':
1025                   fput_const ((GET_FIELD (insn, 16, 20) << 5 |
1026                                GET_FIELD (insn, 27, 31)), info);
1027                   break;
1028                 case 'u':
1029                   (*info->fprintf_func) (info->stream, ",%d", GET_FIELD (insn, 23, 25));
1030                   break;
1031                 case 'F':
1032                   /* if no destination completer and not before a completer
1033                      for fcmp, need a space here */
1034                   if (s[1] == 'G' || s[1] == '?')
1035                     fputs_filtered (float_format_names[GET_FIELD (insn, 19, 20)],
1036                                     info);
1037                   else
1038                     (*info->fprintf_func) (info->stream, "%s ",
1039                                            float_format_names[GET_FIELD
1040                                                               (insn, 19, 20)]);
1041                   break;
1042                 case 'G':
1043                   (*info->fprintf_func) (info->stream, "%s ",
1044                                     float_format_names[GET_FIELD (insn,
1045                                                                   17, 18)]);
1046                   break;
1047                 case 'H':
1048                   if (GET_FIELD (insn, 26, 26) == 1)
1049                     (*info->fprintf_func) (info->stream, "%s ",
1050                                     float_format_names[0]);
1051                   else
1052                     (*info->fprintf_func) (info->stream, "%s ",
1053                                     float_format_names[1]);
1054                   break;
1055                 case 'I':
1056                   /* if no destination completer and not before a completer
1057                      for fcmp, need a space here */
1058                   if (s[1] == '?')
1059                     fputs_filtered (float_format_names[GET_FIELD (insn, 20, 20)],
1060                                     info);
1061                   else
1062                     (*info->fprintf_func) (info->stream, "%s ",
1063                                            float_format_names[GET_FIELD
1064                                                               (insn, 20, 20)]);
1065                   break;
1066
1067                 case 'J':
1068                   fput_const (extract_14 (insn), info);
1069                   break;
1070
1071                 case '#':
1072                   {
1073                     int sign = GET_FIELD (insn, 31, 31);
1074                     int imm10 = GET_FIELD (insn, 18, 27);
1075                     int disp;
1076
1077                     if (sign)
1078                       disp = (-1 << 10) | imm10;
1079                     else
1080                       disp = imm10;
1081
1082                     disp <<= 3;
1083                     fput_const (disp, info);
1084                     break;
1085                   }
1086                 case 'K':
1087                 case 'd':
1088                   {
1089                     int sign = GET_FIELD (insn, 31, 31);
1090                     int imm11 = GET_FIELD (insn, 18, 28);
1091                     int disp;
1092
1093                     if (sign)
1094                       disp = (-1 << 11) | imm11;
1095                     else
1096                       disp = imm11;
1097
1098                     disp <<= 2;
1099                     fput_const (disp, info);
1100                     break;
1101                   }
1102
1103                 case '>':
1104                 case 'y':
1105                   {
1106                     /* 16-bit long disp., PA2.0 wide only.  */
1107                     int disp = extract_16 (insn);
1108                     disp &= ~3;
1109                     fput_const (disp, info);
1110                     break;
1111                   }
1112
1113                 case '&':
1114                   {
1115                     /* 16-bit long disp., PA2.0 wide only.  */
1116                     int disp = extract_16 (insn);
1117                     disp &= ~7;
1118                     fput_const (disp, info);
1119                     break;
1120                   }
1121
1122                 /* ?!? FIXME */
1123                 case '_':
1124                 case '{':
1125                   fputs_filtered ("Disassembler botch.\n", info);
1126                   break;
1127
1128                 case 'm':
1129                   {
1130                     int y = GET_FIELD (insn, 16, 18);
1131
1132                     if (y != 1)
1133                       fput_const ((y ^ 1) - 1, info);
1134                   }
1135                   break;
1136
1137                 case 'h':
1138                   {
1139                     int cbit;
1140
1141                     cbit = GET_FIELD (insn, 16, 18);
1142
1143                     if (cbit > 0)
1144                       (*info->fprintf_func) (info->stream, ",%d", cbit - 1);
1145                     break;
1146                   }
1147
1148                 case '=':
1149                   {
1150                     int cond = GET_FIELD (insn, 27, 31);
1151
1152                     if (cond == 0)
1153                       fputs_filtered (" ", info);
1154                     else if (cond == 1)
1155                       fputs_filtered ("acc ", info);
1156                     else if (cond == 2)
1157                       fputs_filtered ("rej ", info);
1158                     else if (cond == 5)
1159                       fputs_filtered ("acc8 ", info);
1160                     else if (cond == 6)
1161                       fputs_filtered ("rej8 ", info);
1162                     else if (cond == 9)
1163                       fputs_filtered ("acc6 ", info);
1164                     else if (cond == 13)
1165                       fputs_filtered ("acc4 ", info);
1166                     else if (cond == 17)
1167                       fputs_filtered ("acc2 ", info);
1168                     break;
1169                   }
1170
1171                 case 'X':
1172                   (*info->print_address_func) ((memaddr + 8
1173                                                 + extract_22 (insn)),
1174                                                info);
1175                   break;
1176                 case 'L':
1177                   fputs_filtered (",%r2", info);
1178                   break;
1179                 default:
1180                   (*info->fprintf_func) (info->stream, "%c", *s);
1181                   break;
1182                 }
1183             }
1184           return sizeof(insn);
1185         }
1186     }
1187   (*info->fprintf_func) (info->stream, "#%8x", insn);
1188   return sizeof(insn);
1189 }