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, 2003
   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 fcnv_fixed_names[] = {",w", ",dw", "", ",qw"};
 127 static const char *const fcnv_ufixed_names[] = {",uw", ",udw", "", ",uqw"};
 128 static const char *const float_comp_names[] =
 129 {
 130   ",false?", ",false", ",?", ",!<=>", ",=", ",=t", ",?=", ",!<>",
 131   ",!?>=", ",<", ",?<", ",!>=", ",!?>", ",<=", ",?<=", ",!>",
 132   ",!?<=", ",>", ",?>", ",!<=", ",!?<", ",>=", ",?>=", ",!<",
 133   ",!?=", ",<>", ",!=", ",!=t", ",!?", ",<=>", ",true?", ",true"
 134 };
 135 static const char *const signed_unsigned_names[] = {",u", ",s"};
 136 static const char *const mix_half_names[] = {",l", ",r"};
 137 static const char *const saturation_names[] = {",us", ",ss", 0, ""};
 138 static const char *const read_write_names[] = {",r", ",w"};
 139 static const char *const add_compl_names[] = { 0, "", ",l", ",tsv" };
 140
 141 /* For a bunch of different instructions form an index into a
 142    completer name table.  */
 143 #define GET_COMPL(insn) (GET_FIELD (insn, 26, 26) | \
 144                          GET_FIELD (insn, 18, 18) << 1)
 145
 146 #define GET_COND(insn) (GET_FIELD ((insn), 16, 18) + \
 147                         (GET_FIELD ((insn), 19, 19) ? 8 : 0))
 148
 149 static void fput_reg PARAMS ((unsigned int, disassemble_info *));
 150 static void fput_fp_reg PARAMS ((unsigned int, disassemble_info *));
 151 static void fput_fp_reg_r PARAMS ((unsigned int, disassemble_info *));
 152 static void fput_creg PARAMS ((unsigned int, disassemble_info *));
 153 static void fput_const PARAMS ((unsigned int, disassemble_info *));
 154 static int extract_3 PARAMS ((unsigned int));
 155 static int extract_5_load PARAMS ((unsigned int));
 156 static int extract_5_store PARAMS ((unsigned int));
 157 static unsigned extract_5r_store PARAMS ((unsigned int));
 158 static unsigned extract_5R_store PARAMS ((unsigned int));
 159 static unsigned extract_10U_store PARAMS ((unsigned int));
 160 static unsigned extract_5Q_store PARAMS ((unsigned int));
 161 static int extract_11 PARAMS ((unsigned int));
 162 static int extract_14 PARAMS ((unsigned int));
 163 static int extract_16 PARAMS ((unsigned int));
 164 static int extract_21 PARAMS ((unsigned int));
 165 static int extract_12 PARAMS ((unsigned int));
 166 static int extract_17 PARAMS ((unsigned int));
 167 static int extract_22 PARAMS ((unsigned int));
 168
 169 /* Utility function to print registers.  Put these first, so gcc's function
 170    inlining can do its stuff.  */
 171
 172 #define fputs_filtered(STR,F)   (*info->fprintf_func) (info->stream, "%s", STR)
 173
 174 static void
 175 fput_reg (reg, info)
 176      unsigned reg;
 177      disassemble_info *info;
 178 {
 179   (*info->fprintf_func) (info->stream, reg ? reg_names[reg] : "r0");
 180 }
 181
 182 static void
 183 fput_fp_reg (reg, info)
 184      unsigned reg;
 185      disassemble_info *info;
 186 {
 187   (*info->fprintf_func) (info->stream, reg ? fp_reg_names[reg] : "fr0");
 188 }
 189
 190 static void
 191 fput_fp_reg_r (reg, info)
 192      unsigned reg;
 193      disassemble_info *info;
 194 {
 195   /* Special case floating point exception registers.  */
 196   if (reg < 4)
 197     (*info->fprintf_func) (info->stream, "fpe%d", reg * 2 + 1);
 198   else
 199     (*info->fprintf_func) (info->stream, "%sR",
 200                            reg ? fp_reg_names[reg] : "fr0");
 201 }
 202
 203 static void
 204 fput_creg (reg, info)
 205      unsigned reg;
 206      disassemble_info *info;
 207 {
 208   (*info->fprintf_func) (info->stream, control_reg[reg]);
 209 }
 210
 211 /* Print constants with sign.  */
 212
 213 static void
 214 fput_const (num, info)
 215      unsigned num;
 216      disassemble_info *info;
 217 {
 218   if ((int)num < 0)
 219     (*info->fprintf_func) (info->stream, "-%x", -(int)num);
 220   else
 221     (*info->fprintf_func) (info->stream, "%x", num);
 222 }
 223
 224 /* Routines to extract various sized constants out of hppa
 225    instructions.  */
 226
 227 /* Extract a 3-bit space register number from a be, ble, mtsp or mfsp.  */
 228 static int
 229 extract_3 (word)
 230      unsigned word;
 231 {
 232   return GET_FIELD (word, 18, 18) << 2 | GET_FIELD (word, 16, 17);
 233 }
 234
 235 static int
 236 extract_5_load (word)
 237      unsigned word;
 238 {
 239   return low_sign_extend (word >> 16 & MASK_5, 5);
 240 }
 241
 242 /* Extract the immediate field from a st{bhw}s instruction.  */
 243 static int
 244 extract_5_store (word)
 245      unsigned word;
 246 {
 247   return low_sign_extend (word & MASK_5, 5);
 248 }
 249
 250 /* Extract the immediate field from a break instruction.  */
 251 static unsigned
 252 extract_5r_store (word)
 253      unsigned word;
 254 {
 255   return (word & MASK_5);
 256 }
 257
 258 /* Extract the immediate field from a {sr}sm instruction.  */
 259 static unsigned
 260 extract_5R_store (word)
 261      unsigned word;
 262 {
 263   return (word >> 16 & MASK_5);
 264 }
 265
 266 /* Extract the 10 bit immediate field from a {sr}sm instruction.  */
 267 static unsigned
 268 extract_10U_store (word)
 269      unsigned word;
 270 {
 271   return (word >> 16 & MASK_10);
 272 }
 273
 274 /* Extract the immediate field from a bb instruction.  */
 275 static unsigned
 276 extract_5Q_store (word)
 277      unsigned word;
 278 {
 279   return (word >> 21 & MASK_5);
 280 }
 281
 282 /* Extract an 11 bit immediate field.  */
 283 static int
 284 extract_11 (word)
 285      unsigned word;
 286 {
 287   return low_sign_extend (word & MASK_11, 11);
 288 }
 289
 290 /* Extract a 14 bit immediate field.  */
 291 static int
 292 extract_14 (word)
 293      unsigned word;
 294 {
 295   return low_sign_extend (word & MASK_14, 14);
 296 }
 297
 298 /* Extract a 16 bit immediate field (PA2.0 wide only).  */
 299 static int
 300 extract_16 (word)
 301      unsigned word;
 302 {
 303   int m15, m0, m1;
 304   m0 = GET_BIT (word, 16);
 305   m1 = GET_BIT (word, 17);
 306   m15 = GET_BIT (word, 31);
 307   word = (word >> 1) & 0x1fff;
 308   word = word | (m15 << 15) | ((m15 ^ m0) << 14) | ((m15 ^ m1) << 13);
 309   return sign_extend (word, 16);
 310 }
 311
 312 /* Extract a 21 bit constant.  */
 313
 314 static int
 315 extract_21 (word)
 316      unsigned word;
 317 {
 318   int val;
 319
 320   word &= MASK_21;
 321   word <<= 11;
 322   val = GET_FIELD (word, 20, 20);
 323   val <<= 11;
 324   val |= GET_FIELD (word, 9, 19);
 325   val <<= 2;
 326   val |= GET_FIELD (word, 5, 6);
 327   val <<= 5;
 328   val |= GET_FIELD (word, 0, 4);
 329   val <<= 2;
 330   val |= GET_FIELD (word, 7, 8);
 331   return sign_extend (val, 21) << 11;
 332 }
 333
 334 /* Extract a 12 bit constant from branch instructions.  */
 335
 336 static int
 337 extract_12 (word)
 338      unsigned word;
 339 {
 340   return sign_extend (GET_FIELD (word, 19, 28) |
 341                       GET_FIELD (word, 29, 29) << 10 |
 342                       (word & 0x1) << 11, 12) << 2;
 343 }
 344
 345 /* Extract a 17 bit constant from branch instructions, returning the
 346    19 bit signed value.  */
 347
 348 static int
 349 extract_17 (word)
 350      unsigned word;
 351 {
 352   return sign_extend (GET_FIELD (word, 19, 28) |
 353                       GET_FIELD (word, 29, 29) << 10 |
 354                       GET_FIELD (word, 11, 15) << 11 |
 355                       (word & 0x1) << 16, 17) << 2;
 356 }
 357
 358 static int
 359 extract_22 (word)
 360      unsigned word;
 361 {
 362   return sign_extend (GET_FIELD (word, 19, 28) |
 363                       GET_FIELD (word, 29, 29) << 10 |
 364                       GET_FIELD (word, 11, 15) << 11 |
 365                       GET_FIELD (word, 6, 10) << 16 |
 366                       (word & 0x1) << 21, 22) << 2;
 367 }
 368
 369 /* Print one instruction.  */
 370 int
 371 print_insn_hppa (memaddr, info)
 372      bfd_vma memaddr;
 373      disassemble_info *info;
 374 {
 375   bfd_byte buffer[4];
 376   unsigned int insn, i;
 377
 378   {
 379     int status =
 380       (*info->read_memory_func) (memaddr, buffer, sizeof (buffer), info);
 381     if (status != 0)
 382       {
 383         (*info->memory_error_func) (status, memaddr, info);
 384         return -1;
 385       }
 386   }
 387
 388   insn = bfd_getb32 (buffer);
 389
 390   for (i = 0; i < NUMOPCODES; ++i)
 391     {
 392       const struct pa_opcode *opcode = &pa_opcodes[i];
 393       if ((insn & opcode->mask) == opcode->match)
 394         {
 395           register const char *s;
 396 #ifndef BFD64
 397           if (opcode->arch == pa20w)
 398             continue;
 399 #endif
 400           (*info->fprintf_func) (info->stream, "%s", opcode->name);
 401
 402           if (!strchr ("cfCY?-+nHNZFIuv{", opcode->args[0]))
 403             (*info->fprintf_func) (info->stream, " ");
 404           for (s = opcode->args; *s != '\0'; ++s)
 405             {
 406               switch (*s)
 407                 {
 408                 case 'x':
 409                   fput_reg (GET_FIELD (insn, 11, 15), info);
 410                   break;
 411                 case 'a':
 412                 case 'b':
 413                   fput_reg (GET_FIELD (insn, 6, 10), info);
 414                   break;
 415                 case '^':
 416                   fput_creg (GET_FIELD (insn, 6, 10), info);
 417                   break;
 418                 case 't':
 419                   fput_reg (GET_FIELD (insn, 27, 31), info);
 420                   break;
 421
 422                   /* Handle floating point registers.  */
 423                 case 'f':
 424                   switch (*++s)
 425                     {
 426                     case 't':
 427                       fput_fp_reg (GET_FIELD (insn, 27, 31), info);
 428                       break;
 429                     case 'T':
 430                       if (GET_FIELD (insn, 25, 25))
 431                         fput_fp_reg_r (GET_FIELD (insn, 27, 31), info);
 432                       else
 433                         fput_fp_reg (GET_FIELD (insn, 27, 31), info);
 434                       break;
 435                     case 'a':
 436                       if (GET_FIELD (insn, 25, 25))
 437                         fput_fp_reg_r (GET_FIELD (insn, 6, 10), info);
 438                       else
 439                         fput_fp_reg (GET_FIELD (insn, 6, 10), info);
 440                       break;
 441
 442                       /* 'fA' will not generate a space before the regsiter
 443                          name.  Normally that is fine.  Except that it
 444                          causes problems with xmpyu which has no FP format
 445                          completer.  */
 446                     case 'X':
 447                       fputs_filtered (" ", info);
 448                       /* FALLTHRU */
 449
 450                     case 'A':
 451                       if (GET_FIELD (insn, 24, 24))
 452                         fput_fp_reg_r (GET_FIELD (insn, 6, 10), info);
 453                       else
 454                         fput_fp_reg (GET_FIELD (insn, 6, 10), info);
 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                       /* FALLTHRU */
 526
 527                     case 'e':
 528                       if (GET_FIELD (insn, 30, 30))
 529                         fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
 530                       else
 531                         fput_fp_reg (GET_FIELD (insn, 11, 15), info);
 532                       break;
 533                     case 'x':
 534                       fput_fp_reg (GET_FIELD (insn, 11, 15), info);
 535                       break;
 536                     }
 537                   break;
 538
 539                 case '5':
 540                   fput_const (extract_5_load (insn), info);
 541                   break;
 542                 case 's':
 543                   {
 544                     int space = GET_FIELD (insn, 16, 17);
 545                     /* Zero means implicit addressing, not use of sr0.  */
 546                     if (space != 0)
 547                       (*info->fprintf_func) (info->stream, "sr%d", space);
 548                   }
 549                   break;
 550
 551                 case 'S':
 552                   (*info->fprintf_func) (info->stream, "sr%d",
 553                                          extract_3 (insn));
 554                   break;
 555
 556                   /* Handle completers.  */
 557                 case 'c':
 558                   switch (*++s)
 559                     {
 560                     case 'x':
 561                       (*info->fprintf_func)
 562                         (info->stream, "%s",
 563                          index_compl_names[GET_COMPL (insn)]);
 564                       break;
 565                     case 'X':
 566                       (*info->fprintf_func)
 567                         (info->stream, "%s ",
 568                          index_compl_names[GET_COMPL (insn)]);
 569                       break;
 570                     case 'm':
 571                       (*info->fprintf_func)
 572                         (info->stream, "%s",
 573                          short_ldst_compl_names[GET_COMPL (insn)]);
 574                       break;
 575                     case 'M':
 576                       (*info->fprintf_func)
 577                         (info->stream, "%s ",
 578                          short_ldst_compl_names[GET_COMPL (insn)]);
 579                       break;
 580                     case 'A':
 581                       (*info->fprintf_func)
 582                         (info->stream, "%s ",
 583                          short_bytes_compl_names[GET_COMPL (insn)]);
 584                       break;
 585                     case 's':
 586                       (*info->fprintf_func)
 587                         (info->stream, "%s",
 588                          short_bytes_compl_names[GET_COMPL (insn)]);
 589                       break;
 590                     case 'c':
 591                     case 'C':
 592                       switch (GET_FIELD (insn, 20, 21))
 593                         {
 594                         case 1:
 595                           (*info->fprintf_func) (info->stream, ",bc ");
 596                           break;
 597                         case 2:
 598                           (*info->fprintf_func) (info->stream, ",sl ");
 599                           break;
 600                         default:
 601                           (*info->fprintf_func) (info->stream, " ");
 602                         }
 603                       break;
 604                     case 'd':
 605                       switch (GET_FIELD (insn, 20, 21))
 606                         {
 607                         case 1:
 608                           (*info->fprintf_func) (info->stream, ",co ");
 609                           break;
 610                         default:
 611                           (*info->fprintf_func) (info->stream, " ");
 612                         }
 613                       break;
 614                     case 'o':
 615                       (*info->fprintf_func) (info->stream, ",o");
 616                       break;
 617                     case 'g':
 618                       (*info->fprintf_func) (info->stream, ",gate");
 619                       break;
 620                     case 'p':
 621                       (*info->fprintf_func) (info->stream, ",l,push");
 622                       break;
 623                     case 'P':
 624                       (*info->fprintf_func) (info->stream, ",pop");
 625                       break;
 626                     case 'l':
 627                     case 'L':
 628                       (*info->fprintf_func) (info->stream, ",l");
 629                       break;
 630                     case 'w':
 631                       (*info->fprintf_func)
 632                         (info->stream, "%s ",
 633                          read_write_names[GET_FIELD (insn, 25, 25)]);
 634                       break;
 635                     case 'W':
 636                       (*info->fprintf_func) (info->stream, ",w");
 637                       break;
 638                     case 'r':
 639                       if (GET_FIELD (insn, 23, 26) == 5)
 640                         (*info->fprintf_func) (info->stream, ",r");
 641                       break;
 642                     case 'Z':
 643                       if (GET_FIELD (insn, 26, 26))
 644                         (*info->fprintf_func) (info->stream, ",m ");
 645                       else
 646                         (*info->fprintf_func) (info->stream, " ");
 647                       break;
 648                     case 'i':
 649                       if (GET_FIELD (insn, 25, 25))
 650                         (*info->fprintf_func) (info->stream, ",i");
 651                       break;
 652                     case 'z':
 653                       if (!GET_FIELD (insn, 21, 21))
 654                         (*info->fprintf_func) (info->stream, ",z");
 655                       break;
 656                     case 'a':
 657                       (*info->fprintf_func)
 658                         (info->stream, "%s",
 659                          add_compl_names[GET_FIELD (insn, 20, 21)]);
 660                       break;
 661                     case 'Y':
 662                       (*info->fprintf_func)
 663                         (info->stream, ",dc%s",
 664                          add_compl_names[GET_FIELD (insn, 20, 21)]);
 665                       break;
 666                     case 'y':
 667                       (*info->fprintf_func)
 668                         (info->stream, ",c%s",
 669                          add_compl_names[GET_FIELD (insn, 20, 21)]);
 670                       break;
 671                     case 'v':
 672                       if (GET_FIELD (insn, 20, 20))
 673                         (*info->fprintf_func) (info->stream, ",tsv");
 674                       break;
 675                     case 't':
 676                       (*info->fprintf_func) (info->stream, ",tc");
 677                       if (GET_FIELD (insn, 20, 20))
 678                         (*info->fprintf_func) (info->stream, ",tsv");
 679                       break;
 680                     case 'B':
 681                       (*info->fprintf_func) (info->stream, ",db");
 682                       if (GET_FIELD (insn, 20, 20))
 683                         (*info->fprintf_func) (info->stream, ",tsv");
 684                       break;
 685                     case 'b':
 686                       (*info->fprintf_func) (info->stream, ",b");
 687                       if (GET_FIELD (insn, 20, 20))
 688                         (*info->fprintf_func) (info->stream, ",tsv");
 689                       break;
 690                     case 'T':
 691                       if (GET_FIELD (insn, 25, 25))
 692                         (*info->fprintf_func) (info->stream, ",tc");
 693                       break;
 694                     case 'S':
 695                       /* EXTRD/W has a following condition.  */
 696                       if (*(s + 1) == '?')
 697                         (*info->fprintf_func)
 698                           (info->stream, "%s",
 699                            signed_unsigned_names[GET_FIELD (insn, 21, 21)]);
 700                       else
 701                         (*info->fprintf_func)
 702                           (info->stream, "%s ",
 703                            signed_unsigned_names[GET_FIELD (insn, 21, 21)]);
 704                       break;
 705                     case 'h':
 706                       (*info->fprintf_func)
 707                         (info->stream, "%s",
 708                          mix_half_names[GET_FIELD (insn, 17, 17)]);
 709                       break;
 710                     case 'H':
 711                       (*info->fprintf_func)
 712                         (info->stream, "%s ",
 713                          saturation_names[GET_FIELD (insn, 24, 25)]);
 714                       break;
 715                     case '*':
 716                       (*info->fprintf_func)
 717                         (info->stream, ",%d%d%d%d ",
 718                          GET_FIELD (insn, 17, 18), GET_FIELD (insn, 20, 21),
 719                          GET_FIELD (insn, 22, 23), GET_FIELD (insn, 24, 25));
 720                       break;
 721
 722                     case 'q':
 723                       {
 724                         int m, a;
 725
 726                         m = GET_FIELD (insn, 28, 28);
 727                         a = GET_FIELD (insn, 29, 29);
 728
 729                         if (m && !a)
 730                           fputs_filtered (",ma ", info);
 731                         else if (m && a)
 732                           fputs_filtered (",mb ", info);
 733                         else
 734                           fputs_filtered (" ", info);
 735                         break;
 736                       }
 737
 738                     case 'J':
 739                       {
 740                         int opc = GET_FIELD (insn, 0, 5);
 741
 742                         if (opc == 0x16 || opc == 0x1e)
 743                           {
 744                             if (GET_FIELD (insn, 29, 29) == 0)
 745                               fputs_filtered (",ma ", info);
 746                             else
 747                               fputs_filtered (",mb ", info);
 748                           }
 749                         else
 750                           fputs_filtered (" ", info);
 751                         break;
 752                       }
 753
 754                     case 'e':
 755                       {
 756                         int opc = GET_FIELD (insn, 0, 5);
 757
 758                         if (opc == 0x13 || opc == 0x1b)
 759                           {
 760                             if (GET_FIELD (insn, 18, 18) == 1)
 761                               fputs_filtered (",mb ", info);
 762                             else
 763                               fputs_filtered (",ma ", info);
 764                           }
 765                         else if (opc == 0x17 || opc == 0x1f)
 766                           {
 767                             if (GET_FIELD (insn, 31, 31) == 1)
 768                               fputs_filtered (",ma ", info);
 769                             else
 770                               fputs_filtered (",mb ", info);
 771                           }
 772                         else
 773                           fputs_filtered (" ", info);
 774
 775                         break;
 776                       }
 777                     }
 778                   break;
 779
 780                   /* Handle conditions.  */
 781                 case '?':
 782                   {
 783                     s++;
 784                     switch (*s)
 785                       {
 786                       case 'f':
 787                         (*info->fprintf_func)
 788                           (info->stream, "%s ",
 789                            float_comp_names[GET_FIELD (insn, 27, 31)]);
 790                         break;
 791
 792                         /* these four conditions are for the set of instructions
 793                            which distinguish true/false conditions by opcode
 794                            rather than by the 'f' bit (sigh): comb, comib,
 795                            addb, addib */
 796                       case 't':
 797                         fputs_filtered
 798                           (compare_cond_names[GET_FIELD (insn, 16, 18)], info);
 799                         break;
 800                       case 'n':
 801                         fputs_filtered
 802                           (compare_cond_names[GET_FIELD (insn, 16, 18)
 803                                               + GET_FIELD (insn, 4, 4) * 8],
 804                            info);
 805                         break;
 806                       case 'N':
 807                         fputs_filtered
 808                           (compare_cond_64_names[GET_FIELD (insn, 16, 18)
 809                                                  + GET_FIELD (insn, 2, 2) * 8],
 810                            info);
 811                         break;
 812                       case 'Q':
 813                         fputs_filtered
 814                           (cmpib_cond_64_names[GET_FIELD (insn, 16, 18)],
 815                            info);
 816                         break;
 817                       case '@':
 818                         fputs_filtered
 819                           (add_cond_names[GET_FIELD (insn, 16, 18)
 820                                           + GET_FIELD (insn, 4, 4) * 8],
 821                            info);
 822                         break;
 823                       case 's':
 824                         (*info->fprintf_func)
 825                           (info->stream, "%s ",
 826                            compare_cond_names[GET_COND (insn)]);
 827                         break;
 828                       case 'S':
 829                         (*info->fprintf_func)
 830                           (info->stream, "%s ",
 831                            compare_cond_64_names[GET_COND (insn)]);
 832                         break;
 833                       case 'a':
 834                         (*info->fprintf_func)
 835                           (info->stream, "%s ",
 836                            add_cond_names[GET_COND (insn)]);
 837                         break;
 838                       case 'A':
 839                         (*info->fprintf_func)
 840                           (info->stream, "%s ",
 841                            add_cond_64_names[GET_COND (insn)]);
 842                         break;
 843                       case 'd':
 844                         (*info->fprintf_func)
 845                           (info->stream, "%s",
 846                            add_cond_names[GET_FIELD (insn, 16, 18)]);
 847                         break;
 848
 849                       case 'W':
 850                         (*info->fprintf_func)
 851                           (info->stream, "%s",
 852                            wide_add_cond_names[GET_FIELD (insn, 16, 18) +
 853                                                GET_FIELD (insn, 4, 4) * 8]);
 854                         break;
 855
 856                       case 'l':
 857                         (*info->fprintf_func)
 858                           (info->stream, "%s ",
 859                            logical_cond_names[GET_COND (insn)]);
 860                         break;
 861                       case 'L':
 862                         (*info->fprintf_func)
 863                           (info->stream, "%s ",
 864                            logical_cond_64_names[GET_COND (insn)]);
 865                         break;
 866                       case 'u':
 867                         (*info->fprintf_func)
 868                           (info->stream, "%s ",
 869                            unit_cond_names[GET_COND (insn)]);
 870                         break;
 871                       case 'U':
 872                         (*info->fprintf_func)
 873                           (info->stream, "%s ",
 874                            unit_cond_64_names[GET_COND (insn)]);
 875                         break;
 876                       case 'y':
 877                       case 'x':
 878                       case 'b':
 879                         (*info->fprintf_func)
 880                           (info->stream, "%s",
 881                            shift_cond_names[GET_FIELD (insn, 16, 18)]);
 882
 883                         /* If the next character in args is 'n', it will handle
 884                            putting out the space.  */
 885                         if (s[1] != 'n')
 886                           (*info->fprintf_func) (info->stream, " ");
 887                         break;
 888                       case 'X':
 889                         (*info->fprintf_func)
 890                           (info->stream, "%s ",
 891                            shift_cond_64_names[GET_FIELD (insn, 16, 18)]);
 892                         break;
 893                       case 'B':
 894                         (*info->fprintf_func)
 895                           (info->stream, "%s",
 896                            bb_cond_64_names[GET_FIELD (insn, 16, 16)]);
 897
 898                         /* If the next character in args is 'n', it will handle
 899                            putting out the space.  */
 900                         if (s[1] != 'n')
 901                           (*info->fprintf_func) (info->stream, " ");
 902                         break;
 903                       }
 904                     break;
 905                   }
 906
 907                 case 'V':
 908                   fput_const (extract_5_store (insn), info);
 909                   break;
 910                 case 'r':
 911                   fput_const (extract_5r_store (insn), info);
 912                   break;
 913                 case 'R':
 914                   fput_const (extract_5R_store (insn), info);
 915                   break;
 916                 case 'U':
 917                   fput_const (extract_10U_store (insn), info);
 918                   break;
 919                 case 'B':
 920                 case 'Q':
 921                   fput_const (extract_5Q_store (insn), info);
 922                   break;
 923                 case 'i':
 924                   fput_const (extract_11 (insn), info);
 925                   break;
 926                 case 'j':
 927                   fput_const (extract_14 (insn), info);
 928                   break;
 929                 case 'k':
 930                   fput_const (extract_21 (insn), info);
 931                   break;
 932                 case '<':
 933                 case 'l':
 934                   /* 16-bit long disp., PA2.0 wide only.  */
 935                   fput_const (extract_16 (insn), info);
 936                   break;
 937                 case 'n':
 938                   if (insn & 0x2)
 939                     (*info->fprintf_func) (info->stream, ",n ");
 940                   else
 941                     (*info->fprintf_func) (info->stream, " ");
 942                   break;
 943                 case 'N':
 944                   if ((insn & 0x20) && s[1])
 945                     (*info->fprintf_func) (info->stream, ",n ");
 946                   else if (insn & 0x20)
 947                     (*info->fprintf_func) (info->stream, ",n");
 948                   else if (s[1])
 949                     (*info->fprintf_func) (info->stream, " ");
 950                   break;
 951                 case 'w':
 952                   (*info->print_address_func)
 953                     (memaddr + 8 + extract_12 (insn), info);
 954                   break;
 955                 case 'W':
 956                   /* 17 bit PC-relative branch.  */
 957                   (*info->print_address_func)
 958                     ((memaddr + 8 + extract_17 (insn)), info);
 959                   break;
 960                 case 'z':
 961                   /* 17 bit displacement.  This is an offset from a register
 962                      so it gets disasssembled as just a number, not any sort
 963                      of address.  */
 964                   fput_const (extract_17 (insn), info);
 965                   break;
 966
 967                 case 'Z':
 968                   /* addil %r1 implicit output.  */
 969                   (*info->fprintf_func) (info->stream, "%%r1");
 970                   break;
 971
 972                 case 'Y':
 973                   /* be,l %sr0,%r31 implicit output.  */
 974                   (*info->fprintf_func) (info->stream, "%%sr0,%%r31");
 975                   break;
 976
 977                 case '@':
 978                   (*info->fprintf_func) (info->stream, "0");
 979                   break;
 980
 981                 case '.':
 982                   (*info->fprintf_func) (info->stream, "%d",
 983                                          GET_FIELD (insn, 24, 25));
 984                   break;
 985                 case '*':
 986                   (*info->fprintf_func) (info->stream, "%d",
 987                                          GET_FIELD (insn, 22, 25));
 988                   break;
 989                 case '!':
 990                   (*info->fprintf_func) (info->stream, "%%sar");
 991                   break;
 992                 case 'p':
 993                   (*info->fprintf_func) (info->stream, "%d",
 994                                          31 - GET_FIELD (insn, 22, 26));
 995                   break;
 996                 case '~':
 997                   {
 998                     int num;
 999                     num = GET_FIELD (insn, 20, 20) << 5;
1000                     num |= GET_FIELD (insn, 22, 26);
1001                     (*info->fprintf_func) (info->stream, "%d", 63 - num);
1002                     break;
1003                   }
1004                 case 'P':
1005                   (*info->fprintf_func) (info->stream, "%d",
1006                                          GET_FIELD (insn, 22, 26));
1007                   break;
1008                 case 'q':
1009                   {
1010                     int num;
1011                     num = GET_FIELD (insn, 20, 20) << 5;
1012                     num |= GET_FIELD (insn, 22, 26);
1013                     (*info->fprintf_func) (info->stream, "%d", num);
1014                     break;
1015                   }
1016                 case 'T':
1017                   (*info->fprintf_func) (info->stream, "%d",
1018                                          32 - GET_FIELD (insn, 27, 31));
1019                   break;
1020                 case '%':
1021                   {
1022                     int num;
1023                     num = (GET_FIELD (insn, 23, 23) + 1) * 32;
1024                     num -= GET_FIELD (insn, 27, 31);
1025                     (*info->fprintf_func) (info->stream, "%d", num);
1026                     break;
1027                   }
1028                 case '|':
1029                   {
1030                     int num;
1031                     num = (GET_FIELD (insn, 19, 19) + 1) * 32;
1032                     num -= GET_FIELD (insn, 27, 31);
1033                     (*info->fprintf_func) (info->stream, "%d", num);
1034                     break;
1035                   }
1036                 case '$':
1037                   fput_const (GET_FIELD (insn, 20, 28), info);
1038                   break;
1039                 case 'A':
1040                   fput_const (GET_FIELD (insn, 6, 18), info);
1041                   break;
1042                 case 'D':
1043                   fput_const (GET_FIELD (insn, 6, 31), info);
1044                   break;
1045                 case 'v':
1046                   (*info->fprintf_func) (info->stream, ",%d",
1047                                          GET_FIELD (insn, 23, 25));
1048                   break;
1049                 case 'O':
1050                   fput_const ((GET_FIELD (insn, 6,20) << 5 |
1051                                GET_FIELD (insn, 27, 31)), info);
1052                   break;
1053                 case 'o':
1054                   fput_const (GET_FIELD (insn, 6, 20), info);
1055                   break;
1056                 case '2':
1057                   fput_const ((GET_FIELD (insn, 6, 22) << 5 |
1058                                GET_FIELD (insn, 27, 31)), info);
1059                   break;
1060                 case '1':
1061                   fput_const ((GET_FIELD (insn, 11, 20) << 5 |
1062                                GET_FIELD (insn, 27, 31)), info);
1063                   break;
1064                 case '0':
1065                   fput_const ((GET_FIELD (insn, 16, 20) << 5 |
1066                                GET_FIELD (insn, 27, 31)), info);
1067                   break;
1068                 case 'u':
1069                   (*info->fprintf_func) (info->stream, ",%d",
1070                                          GET_FIELD (insn, 23, 25));
1071                   break;
1072                 case 'F':
1073                   /* if no destination completer and not before a completer
1074                      for fcmp, need a space here */
1075                   if (s[1] == 'G' || s[1] == '?')
1076                     fputs_filtered
1077                       (float_format_names[GET_FIELD (insn, 19, 20)], info);
1078                   else
1079                     (*info->fprintf_func)
1080                       (info->stream, "%s ",
1081                        float_format_names[GET_FIELD (insn, 19, 20)]);
1082                   break;
1083                 case 'G':
1084                   (*info->fprintf_func)
1085                     (info->stream, "%s ",
1086                      float_format_names[GET_FIELD (insn, 17, 18)]);
1087                   break;
1088                 case 'H':
1089                   if (GET_FIELD (insn, 26, 26) == 1)
1090                     (*info->fprintf_func) (info->stream, "%s ",
1091                                            float_format_names[0]);
1092                   else
1093                     (*info->fprintf_func) (info->stream, "%s ",
1094                                            float_format_names[1]);
1095                   break;
1096                 case 'I':
1097                   /* if no destination completer and not before a completer
1098                      for fcmp, need a space here */
1099                   if (s[1] == '?')
1100                     fputs_filtered
1101                       (float_format_names[GET_FIELD (insn, 20, 20)], info);
1102                   else
1103                     (*info->fprintf_func)
1104                       (info->stream, "%s ",
1105                        float_format_names[GET_FIELD (insn, 20, 20)]);
1106                   break;
1107
1108                 case 'J':
1109                   fput_const (extract_14 (insn), info);
1110                   break;
1111
1112                 case '#':
1113                   {
1114                     int sign = GET_FIELD (insn, 31, 31);
1115                     int imm10 = GET_FIELD (insn, 18, 27);
1116                     int disp;
1117
1118                     if (sign)
1119                       disp = (-1 << 10) | imm10;
1120                     else
1121                       disp = imm10;
1122
1123                     disp <<= 3;
1124                     fput_const (disp, info);
1125                     break;
1126                   }
1127                 case 'K':
1128                 case 'd':
1129                   {
1130                     int sign = GET_FIELD (insn, 31, 31);
1131                     int imm11 = GET_FIELD (insn, 18, 28);
1132                     int disp;
1133
1134                     if (sign)
1135                       disp = (-1 << 11) | imm11;
1136                     else
1137                       disp = imm11;
1138
1139                     disp <<= 2;
1140                     fput_const (disp, info);
1141                     break;
1142                   }
1143
1144                 case '>':
1145                 case 'y':
1146                   {
1147                     /* 16-bit long disp., PA2.0 wide only.  */
1148                     int disp = extract_16 (insn);
1149                     disp &= ~3;
1150                     fput_const (disp, info);
1151                     break;
1152                   }
1153
1154                 case '&':
1155                   {
1156                     /* 16-bit long disp., PA2.0 wide only.  */
1157                     int disp = extract_16 (insn);
1158                     disp &= ~7;
1159                     fput_const (disp, info);
1160                     break;
1161                   }
1162
1163                 case '_':
1164                   break; /* Dealt with by '{' */
1165
1166                 case '{':
1167                   {
1168                     int sub = GET_FIELD (insn, 14, 16);
1169                     int df = GET_FIELD (insn, 17, 18);
1170                     int sf = GET_FIELD (insn, 19, 20);
1171                     const char * const * source = float_format_names;
1172                     const char * const * dest = float_format_names;
1173                     char *t = "";
1174                     if (sub == 4)
1175                       {
1176                         fputs_filtered (",UND ", info);
1177                         break;
1178                       }
1179                     if ((sub & 3) == 3)
1180                       t = ",t";
1181                     if ((sub & 3) == 1)
1182                       source = sub & 4 ? fcnv_ufixed_names : fcnv_fixed_names;
1183                     if (sub & 2)
1184                       dest = sub & 4 ? fcnv_ufixed_names : fcnv_fixed_names;
1185
1186                     (*info->fprintf_func) (info->stream, "%s%s%s ",
1187                                            t, source[sf], dest[df]);
1188                     break;
1189                   }
1190
1191                 case 'm':
1192                   {
1193                     int y = GET_FIELD (insn, 16, 18);
1194
1195                     if (y != 1)
1196                       fput_const ((y ^ 1) - 1, info);
1197                   }
1198                   break;
1199
1200                 case 'h':
1201                   {
1202                     int cbit;
1203
1204                     cbit = GET_FIELD (insn, 16, 18);
1205
1206                     if (cbit > 0)
1207                       (*info->fprintf_func) (info->stream, ",%d", cbit - 1);
1208                     break;
1209                   }
1210
1211                 case '=':
1212                   {
1213                     int cond = GET_FIELD (insn, 27, 31);
1214
1215                     if (cond == 0)
1216                       fputs_filtered (" ", info);
1217                     else if (cond == 1)
1218                       fputs_filtered ("acc ", info);
1219                     else if (cond == 2)
1220                       fputs_filtered ("rej ", info);
1221                     else if (cond == 5)
1222                       fputs_filtered ("acc8 ", info);
1223                     else if (cond == 6)
1224                       fputs_filtered ("rej8 ", info);
1225                     else if (cond == 9)
1226                       fputs_filtered ("acc6 ", info);
1227                     else if (cond == 13)
1228                       fputs_filtered ("acc4 ", info);
1229                     else if (cond == 17)
1230                       fputs_filtered ("acc2 ", info);
1231                     break;
1232                   }
1233
1234                 case 'X':
1235                   (*info->print_address_func)
1236                     (memaddr + 8 + extract_22 (insn), info);
1237                   break;
1238                 case 'L':
1239                   fputs_filtered (",%r2", info);
1240                   break;
1241                 default:
1242                   (*info->fprintf_func) (info->stream, "%c", *s);
1243                   break;
1244                 }
1245             }
1246           return sizeof(insn);
1247         }
1248     }
1249   (*info->fprintf_func) (info->stream, "#%8x", insn);
1250   return sizeof(insn);
1251 }