opcodes/hppa-dis.c

   1 /* Disassembler for the PA-RISC. Somewhat derived from sparc-pinsn.c.
   2    Copyright 1989, 1990, 1992, 1993 Free Software Foundation, Inc.
   3
   4    Contributed by the Center for Software Science at the
   5    University of Utah (pa-gdb-bugs@cs.utah.edu).
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 #include <ansidecl.h>
  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_21 0x1fffff
  53
  54 /* This macro gets bit fields using HP's numbering (MSB = 0) */
  55
  56 #define GET_FIELD(X, FROM, TO) \
  57   ((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1))
  58
  59 /* Some of these have been converted to 2-d arrays because they
  60    consume less storage this way.  If the maintenance becomes a
  61    problem, convert them back to const 1-d pointer arrays.  */
  62 static const char control_reg[][6] = {
  63   "rctr", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7",
  64   "pidr1", "pidr2", "ccr", "sar", "pidr3", "pidr4",
  65   "iva", "eiem", "itmr", "pcsq", "pcoq", "iir", "isr",
  66   "ior", "ipsw", "eirr", "tr0", "tr1", "tr2", "tr3",
  67   "tr4", "tr5", "tr6", "tr7"
  68 };
  69
  70 static const char compare_cond_names[][5] = {
  71   "", ",=", ",<", ",<=", ",<<", ",<<=", ",sv", ",od",
  72   ",tr", ",<>", ",>=", ",>", ",>>=", ",>>", ",nsv", ",ev"
  73 };
  74 static const char compare_cond_64_names[][6] = {
  75   "", ",*=", ",*<", ",*<=", ",*<<", ",*<<=", ",*sv", ",*od",
  76   ",*tr", ",*<>", ",*>=", ",*>", ",*>>=", ",*>>", ",*nsv", ",*ev"
  77 };
  78 static const char cmpib_cond_64_names[][6] = {
  79   ",*<<", ",*=", ",*<", ",*<=", ",*>>=", ",*<>", ",*>=", ",*>"
  80 };
  81 static const char add_cond_names[][5] = {
  82   "", ",=", ",<", ",<=", ",nuv", ",znv", ",sv", ",od",
  83   ",tr", ",<>", ",>=", ",>", ",uv", ",vnz", ",nsv", ",ev"
  84 };
  85 static const char add_cond_64_names[][6] = {
  86   ",*", ",*=", ",*<", ",*<=", ",*nuv", ",*znv", ",*sv", ",*od",
  87   ",*tr", ",*<>", ",*>=", ",*>", ",*uv", ",*vnz", ",*nsv", ",*ev"
  88 };
  89 static const char wide_add_cond_names[][5] = {
  90   "", ",=", ",<", ",<=", ",nuv", ",*=", ",*<", ",*<=",
  91   ",tr", ",<>", ",>=", ",>", ",uv", ",*<>", ",*>=", ",*>"
  92 };
  93 static const char *const logical_cond_names[] = {
  94   "", ",=", ",<", ",<=", 0, 0, 0, ",od",
  95   ",tr", ",<>", ",>=", ",>", 0, 0, 0, ",ev"};
  96 static const char *const logical_cond_64_names[] = {
  97   ",*", ",*=", ",*<", ",*<=", 0, 0, 0, ",*od",
  98   ",*tr", ",*<>", ",*>=", ",*>", 0, 0, 0, ",*ev"};
  99 static const char *const unit_cond_names[] = {
 100   "", 0, ",sbz", ",shz", ",sdc", 0, ",sbc", ",shc",
 101   ",tr", 0, ",nbz", ",nhz", ",ndc", 0, ",nbc", ",nhc"
 102 };
 103 static const char *const unit_cond_64_names[] = {
 104   ",*", ",*swz", ",*sbz", ",*shz", ",*sdc", ",*swc", ",*sbc", ",*shc",
 105   ",*tr", ",*nwz", ",*nbz", ",*nhz", ",*ndc", ",*nwc", ",*nbc", ",*nhc"
 106 };
 107 static const char shift_cond_names[][4] = {
 108   "", ",=", ",<", ",od", ",tr", ",<>", ",>=", ",ev"
 109 };
 110 static const char shift_cond_64_names[][5] = {
 111   ",*", ",*=", ",*<", ",*od", ",*tr", ",*<>", ",*>=", ",*ev"
 112 };
 113 static const char bb_cond_64_names[][5] = {
 114   ",*<", ",*>="
 115 };
 116 static const char index_compl_names[][4] = {"", ",m", ",s", ",sm"};
 117 static const char short_ldst_compl_names[][4] = {"", ",ma", "", ",mb"};
 118 static const char *const short_bytes_compl_names[] = {
 119   "", ",b,m", ",e", ",e,m"
 120 };
 121 static const char *const float_format_names[] = {",sgl", ",dbl", "", ",quad"};
 122 static const char float_comp_names[][8] =
 123 {
 124   ",false?", ",false", ",?", ",!<=>", ",=", ",=t", ",?=", ",!<>",
 125   ",!?>=", ",<", ",?<", ",!>=", ",!?>", ",<=", ",?<=", ",!>",
 126   ",!?<=", ",>", ",?>", ",!<=", ",!?<", ",>=", ",?>=", ",!<",
 127   ",!?=", ",<>", ",!=", ",!=t", ",!?", ",<=>", ",true?", ",true"
 128 };
 129 static const char *const signed_unsigned_names[][3] = {",u", ",s"};
 130 static const char *const mix_half_names[][3] = {",l", ",r"};
 131 static const char *const saturation_names[][4] = {",us", ",ss", 0, ""};
 132 static const char *const read_write_names[][3] = {",r", ",w"};
 133 static const char *const add_compl_names[] = {
 134   0, "", ",l", ",tsv"
 135 };
 136
 137 /* For a bunch of different instructions form an index into a
 138    completer name table. */
 139 #define GET_COMPL(insn) (GET_FIELD (insn, 26, 26) | \
 140                          GET_FIELD (insn, 18, 18) << 1)
 141
 142 #define GET_COND(insn) (GET_FIELD ((insn), 16, 18) + \
 143                         (GET_FIELD ((insn), 19, 19) ? 8 : 0))
 144
 145 /* Utility function to print registers.  Put these first, so gcc's function
 146    inlining can do its stuff.  */
 147
 148 #define fputs_filtered(STR,F)   (*info->fprintf_func) (info->stream, "%s", STR)
 149
 150 static void
 151 fput_reg (reg, info)
 152      unsigned reg;
 153      disassemble_info *info;
 154 {
 155   (*info->fprintf_func) (info->stream, reg ? reg_names[reg] : "r0");
 156 }
 157
 158 static void
 159 fput_fp_reg (reg, info)
 160      unsigned reg;
 161      disassemble_info *info;
 162 {
 163   (*info->fprintf_func) (info->stream, reg ? fp_reg_names[reg] : "fr0");
 164 }
 165
 166 static void
 167 fput_fp_reg_r (reg, info)
 168      unsigned reg;
 169      disassemble_info *info;
 170 {
 171   /* Special case floating point exception registers.  */
 172   if (reg < 4)
 173     (*info->fprintf_func) (info->stream, "fpe%d", reg * 2 + 1);
 174   else
 175     (*info->fprintf_func) (info->stream, "%sR", reg ? fp_reg_names[reg]
 176                                                     : "fr0");
 177 }
 178
 179 static void
 180 fput_creg (reg, info)
 181      unsigned reg;
 182      disassemble_info *info;
 183 {
 184   (*info->fprintf_func) (info->stream, control_reg[reg]);
 185 }
 186
 187 /* print constants with sign */
 188
 189 static void
 190 fput_const (num, info)
 191      unsigned num;
 192      disassemble_info *info;
 193 {
 194   if ((int)num < 0)
 195     (*info->fprintf_func) (info->stream, "-%x", -(int)num);
 196   else
 197     (*info->fprintf_func) (info->stream, "%x", num);
 198 }
 199
 200 /* Routines to extract various sized constants out of hppa
 201    instructions. */
 202
 203 /* extract a 3-bit space register number from a be, ble, mtsp or mfsp */
 204 static int
 205 extract_3 (word)
 206      unsigned word;
 207 {
 208   return GET_FIELD (word, 18, 18) << 2 | GET_FIELD (word, 16, 17);
 209 }
 210
 211 static int
 212 extract_5_load (word)
 213      unsigned word;
 214 {
 215   return low_sign_extend (word >> 16 & MASK_5, 5);
 216 }
 217
 218 /* extract the immediate field from a st{bhw}s instruction */
 219 static int
 220 extract_5_store (word)
 221      unsigned word;
 222 {
 223   return low_sign_extend (word & MASK_5, 5);
 224 }
 225
 226 /* extract the immediate field from a break instruction */
 227 static unsigned
 228 extract_5r_store (word)
 229      unsigned word;
 230 {
 231   return (word & MASK_5);
 232 }
 233
 234 /* extract the immediate field from a {sr}sm instruction */
 235 static unsigned
 236 extract_5R_store (word)
 237      unsigned word;
 238 {
 239   return (word >> 16 & MASK_5);
 240 }
 241
 242 /* extract the 10 bit immediate field from a {sr}sm instruction */
 243 static unsigned
 244 extract_10U_store (word)
 245      unsigned word;
 246 {
 247   return (word >> 16 & MASK_10);
 248 }
 249
 250 /* extract the immediate field from a bb instruction */
 251 static unsigned
 252 extract_5Q_store (word)
 253      unsigned word;
 254 {
 255   return (word >> 21 & MASK_5);
 256 }
 257
 258 /* extract an 11 bit immediate field */
 259 static int
 260 extract_11 (word)
 261      unsigned word;
 262 {
 263   return low_sign_extend (word & MASK_11, 11);
 264 }
 265
 266 /* extract a 14 bit immediate field */
 267 static int
 268 extract_14 (word)
 269      unsigned word;
 270 {
 271   return low_sign_extend (word & MASK_14, 14);
 272 }
 273
 274 /* extract a 21 bit constant */
 275
 276 static int
 277 extract_21 (word)
 278      unsigned word;
 279 {
 280   int val;
 281
 282   word &= MASK_21;
 283   word <<= 11;
 284   val = GET_FIELD (word, 20, 20);
 285   val <<= 11;
 286   val |= GET_FIELD (word, 9, 19);
 287   val <<= 2;
 288   val |= GET_FIELD (word, 5, 6);
 289   val <<= 5;
 290   val |= GET_FIELD (word, 0, 4);
 291   val <<= 2;
 292   val |= GET_FIELD (word, 7, 8);
 293   return sign_extend (val, 21) << 11;
 294 }
 295
 296 /* extract a 12 bit constant from branch instructions */
 297
 298 static int
 299 extract_12 (word)
 300      unsigned word;
 301 {
 302   return sign_extend (GET_FIELD (word, 19, 28) |
 303                       GET_FIELD (word, 29, 29) << 10 |
 304                       (word & 0x1) << 11, 12) << 2;
 305 }
 306
 307 /* extract a 17 bit constant from branch instructions, returning the
 308    19 bit signed value. */
 309
 310 static int
 311 extract_17 (word)
 312      unsigned word;
 313 {
 314   return sign_extend (GET_FIELD (word, 19, 28) |
 315                       GET_FIELD (word, 29, 29) << 10 |
 316                       GET_FIELD (word, 11, 15) << 11 |
 317                       (word & 0x1) << 16, 17) << 2;
 318 }
 319
 320 /* Print one instruction.  */
 321 int
 322 print_insn_hppa (memaddr, info)
 323      bfd_vma memaddr;
 324      disassemble_info *info;
 325 {
 326   bfd_byte buffer[4];
 327   unsigned int insn, i;
 328
 329   {
 330     int status =
 331       (*info->read_memory_func) (memaddr, buffer, sizeof (buffer), info);
 332     if (status != 0)
 333       {
 334         (*info->memory_error_func) (status, memaddr, info);
 335         return -1;
 336       }
 337   }
 338
 339   insn = bfd_getb32 (buffer);
 340
 341   for (i = 0; i < NUMOPCODES; ++i)
 342     {
 343       const struct pa_opcode *opcode = &pa_opcodes[i];
 344       if ((insn & opcode->mask) == opcode->match)
 345         {
 346           register const char *s;
 347
 348           (*info->fprintf_func) (info->stream, "%s", opcode->name);
 349
 350           if (!strchr ("cfCY?-+nHNZFIu", opcode->args[0]))
 351             (*info->fprintf_func) (info->stream, " ");
 352           for (s = opcode->args; *s != '\0'; ++s)
 353             {
 354               switch (*s)
 355                 {
 356                 case 'x':
 357                   fput_reg (GET_FIELD (insn, 11, 15), info);
 358                   break;
 359                 case 'X':
 360                   if (GET_FIELD (insn, 25, 25))
 361                       fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
 362                   else
 363                       fput_fp_reg (GET_FIELD (insn, 11, 15), info);
 364                   break;
 365                 case 'a':
 366                 case 'b':
 367                   fput_reg (GET_FIELD (insn, 6, 10), info);
 368                   break;
 369                 case '^':
 370                   fput_creg (GET_FIELD (insn, 6, 10), info);
 371                   break;
 372                 case 'E':
 373                   fput_fp_reg (GET_FIELD (insn, 6, 10), info);
 374                   break;
 375                 case 't':
 376                   fput_reg (GET_FIELD (insn, 27, 31), info);
 377                   break;
 378                 case 'v':
 379                   if (GET_FIELD (insn, 25, 25))
 380                       fput_fp_reg_r (GET_FIELD (insn, 27, 31), info);
 381                   else
 382                       fput_fp_reg (GET_FIELD (insn, 27, 31), info);
 383                   break;
 384                 case 'y':
 385                   fput_fp_reg (GET_FIELD (insn, 27, 31), info);
 386                   break;
 387                 case '4':
 388                   {
 389                     int reg = GET_FIELD (insn, 6, 10);
 390
 391                     reg |= (GET_FIELD (insn, 26, 26) << 4);
 392                     fput_fp_reg (reg, info);
 393                     break;
 394                   }
 395                 case '6':
 396                   {
 397                     int reg = GET_FIELD (insn, 11, 15);
 398
 399                     reg |= (GET_FIELD (insn, 26, 26) << 4);
 400                     fput_fp_reg (reg, info);
 401                     break;
 402                   }
 403                 case '7':
 404                   {
 405                     int reg = GET_FIELD (insn, 27, 31);
 406
 407                     reg |= (GET_FIELD (insn, 26, 26) << 4);
 408                     fput_fp_reg (reg, info);
 409                     break;
 410                   }
 411                 case '8':
 412                   {
 413                     int reg = GET_FIELD (insn, 16, 20);
 414
 415                     reg |= (GET_FIELD (insn, 26, 26) << 4);
 416                     fput_fp_reg (reg, info);
 417                     break;
 418                   }
 419                 case '9':
 420                   {
 421                     int reg = GET_FIELD (insn, 21, 25);
 422
 423                     reg |= (GET_FIELD (insn, 26, 26) << 4);
 424                     fput_fp_reg (reg, info);
 425                     break;
 426                   }
 427                 case '5':
 428                   fput_const (extract_5_load (insn), info);
 429                   break;
 430                 case 's':
 431                   (*info->fprintf_func) (info->stream,
 432                                          "sr%d", GET_FIELD (insn, 16, 17));
 433                   break;
 434
 435                 case 'S':
 436                   (*info->fprintf_func) (info->stream, "sr%d", extract_3 (insn));
 437                   break;
 438
 439                 /* Handle completers.  */
 440                 case 'c':
 441                   switch (*++s)
 442                     {
 443                     case 'x':
 444                       (*info->fprintf_func) (info->stream, "%s ",
 445                                              index_compl_names[GET_COMPL (insn)]);
 446                       break;
 447                     case 'm':
 448                       (*info->fprintf_func) (info->stream, "%s ",
 449                                              short_ldst_compl_names[GET_COMPL (insn)]);
 450                       break;
 451                     case 's':
 452                       (*info->fprintf_func) (info->stream, "%s ",
 453                                              short_bytes_compl_names[GET_COMPL (insn)]);
 454                       break;
 455                     case 'L':
 456                       (*info->fprintf_func) (info->stream, ",l");
 457                       break;
 458                     case 'w':
 459                       (*info->fprintf_func) (info->stream, "%s ",
 460                                              read_write_names[GET_FIELD (insn, 25, 25)]);
 461                       break;
 462                     case 'W':
 463                       (*info->fprintf_func) (info->stream, ",w");
 464                       break;
 465                     case 'r':
 466                       if (GET_FIELD (insn, 23, 26) == 5)
 467                         (*info->fprintf_func) (info->stream, ",r");
 468                       break;
 469                     case 'Z':
 470                       if (GET_FIELD (insn, 26, 26))
 471                         (*info->fprintf_func) (info->stream, ",m ");
 472                       else
 473                         (*info->fprintf_func) (info->stream, " ");
 474                       break;
 475                     case 'i':
 476                       if (GET_FIELD (insn, 25, 25))
 477                         (*info->fprintf_func) (info->stream, ",i");
 478                       break;
 479                     case 'a':
 480                       (*info->fprintf_func)
 481                         (info->stream, "%s", add_compl_names[GET_FIELD
 482                                                             (insn, 20, 21)]);
 483                       break;
 484                     case 'Y':
 485                       (*info->fprintf_func)
 486                         (info->stream, ",dc%s", add_compl_names[GET_FIELD
 487                                                                (insn, 20, 21)]);
 488                       break;
 489                     case 'y':
 490                       (*info->fprintf_func)
 491                         (info->stream, ",c%s", add_compl_names[GET_FIELD
 492                                                               (insn, 20, 21)]);
 493                       break;
 494                     case 'v':
 495                       if (GET_FIELD (insn, 20, 20))
 496                         (*info->fprintf_func) (info->stream, ",tsv");
 497                       break;
 498                     case 't':
 499                       (*info->fprintf_func) (info->stream, ",tc");
 500                       if (GET_FIELD (insn, 20, 20))
 501                         (*info->fprintf_func) (info->stream, ",tsv");
 502                       break;
 503                     case 'B':
 504                       (*info->fprintf_func) (info->stream, ",db");
 505                       if (GET_FIELD (insn, 20, 20))
 506                         (*info->fprintf_func) (info->stream, ",tsv");
 507                       break;
 508                     case 'b':
 509                       (*info->fprintf_func) (info->stream, ",b");
 510                       if (GET_FIELD (insn, 20, 20))
 511                         (*info->fprintf_func) (info->stream, ",tsv");
 512                       break;
 513                     case 'T':
 514                       if (GET_FIELD (insn, 25, 25))
 515                         (*info->fprintf_func) (info->stream, ",tc");
 516                       break;
 517                     case 'S':
 518                       /* EXTRD/W has a following condition.  */
 519                       if (*(s + 1) == '?')
 520                         (*info->fprintf_func)
 521                           (info->stream, "%s", signed_unsigned_names[GET_FIELD
 522                                                                     (insn, 21, 21)]);
 523                       else
 524                         (*info->fprintf_func)
 525                           (info->stream, "%s ", signed_unsigned_names[GET_FIELD
 526                                                                      (insn, 21, 21)]);
 527                       break;
 528                     case 'h':
 529                       (*info->fprintf_func)
 530                           (info->stream, "%s", mix_half_names[GET_FIELD
 531                                                              (insn, 17, 17)]);
 532                       break;
 533                     case 'H':
 534                       (*info->fprintf_func)
 535                           (info->stream, "%s", saturation_names[GET_FIELD
 536                                                                (insn, 24, 25)]);
 537                       break;
 538                     case '*':
 539                       (*info->fprintf_func)
 540                           (info->stream, ",%d%d%d%d ",
 541                            GET_FIELD (insn, 17, 18), GET_FIELD (insn, 20, 21),
 542                            GET_FIELD (insn, 22, 23), GET_FIELD (insn, 24, 25));
 543                       break;
 544                     }
 545                   break;
 546
 547                 /* Handle conditions.  */
 548                 case '?':
 549                   {
 550                     s++;
 551                     switch (*s)
 552                       {
 553                       case 'f':
 554                         (*info->fprintf_func) (info->stream, "%s ",
 555                                                float_comp_names[GET_FIELD
 556                                                                (insn, 27, 31)]);
 557                         break;
 558
 559                       /* these four conditions are for the set of instructions
 560                            which distinguish true/false conditions by opcode
 561                            rather than by the 'f' bit (sigh): comb, comib,
 562                            addb, addib */
 563                       case 't':
 564                         fputs_filtered (compare_cond_names[GET_FIELD (insn, 16,
 565                                                                       18)],
 566                                         info);
 567                         break;
 568                       case 'T':
 569                         fputs_filtered (compare_cond_names[GET_FIELD (insn, 16, 18)
 570                                                           + 8], info);
 571                         break;
 572                       case 'r':
 573                         fputs_filtered (compare_cond_64_names[GET_FIELD (insn, 16, 18)],
 574                                         info);
 575                         break;
 576                       case 'R':
 577                         fputs_filtered (compare_cond_64_names[GET_FIELD (insn, 16, 18)
 578                                                              + 8], info);
 579                         break;
 580                       case 'Q':
 581                         fputs_filtered (cmpib_cond_64_names[GET_FIELD (insn, 16, 18)],
 582                                         info);
 583                         break;
 584                       case 'n':
 585                         fputs_filtered (compare_cond_names[GET_FIELD (insn, 16,
 586                                                                       18)
 587                                         + GET_FIELD (insn, 4, 4) * 8], info);
 588                         break;
 589                       case '@':
 590                         fputs_filtered (add_cond_names[GET_FIELD (insn, 16, 18)
 591                                         + GET_FIELD (insn, 4, 4) * 8], info);
 592                         break;
 593                       case 's':
 594                         (*info->fprintf_func) (info->stream, "%s ",
 595                                                compare_cond_names[GET_COND (insn)]);
 596                         break;
 597                       case 'S':
 598                         (*info->fprintf_func) (info->stream, "%s ",
 599                                                compare_cond_64_names[GET_COND (insn)]);
 600                         break;
 601                       case 'a':
 602                         (*info->fprintf_func) (info->stream, "%s ",
 603                                                add_cond_names[GET_COND (insn)]);
 604                         break;
 605                       case 'A':
 606                         (*info->fprintf_func) (info->stream, "%s ",
 607                                                add_cond_64_names[GET_COND (insn)]);
 608                         break;
 609                       case 'd':
 610                         (*info->fprintf_func) (info->stream, "%s",
 611                                                add_cond_names[GET_FIELD (insn,
 612                                                                          16,
 613                                                                          18)]);
 614                         break;
 615                       case 'D':
 616                         (*info->fprintf_func) (info->stream, "%s",
 617                                                add_cond_names[GET_FIELD (insn,
 618                                                                          16, 18)
 619                                                               + 8]);
 620                         break;
 621                       case 'w':
 622                         (*info->fprintf_func)
 623                           (info->stream, "%s",
 624                            wide_add_cond_names[GET_FIELD (insn, 16, 18)]);
 625                         break;
 626
 627                       case 'W':
 628                         (*info->fprintf_func)
 629                           (info->stream, "%s",
 630                            wide_add_cond_names[GET_FIELD (insn, 16, 18) + 8]);
 631                         break;
 632
 633                       case 'l':
 634                         (*info->fprintf_func) (info->stream, "%s ",
 635                                                logical_cond_names[GET_COND (insn)]);
 636                         break;
 637                       case 'L':
 638                         (*info->fprintf_func) (info->stream, "%s ",
 639                                                logical_cond_64_names[GET_COND (insn)]);
 640                         break;
 641                       case 'u':
 642                         (*info->fprintf_func) (info->stream, "%s ",
 643                                                unit_cond_names[GET_COND (insn)]);
 644                         break;
 645                       case 'U':
 646                         (*info->fprintf_func) (info->stream, "%s ",
 647                                                unit_cond_64_names[GET_COND (insn)]);
 648                         break;
 649                       case 'y':
 650                       case 'x':
 651                       case 'b':
 652                         (*info->fprintf_func)
 653                           (info->stream, "%s",
 654                            shift_cond_names[GET_FIELD (insn, 16, 18)]);
 655
 656                         /* If the next character in args is 'n', it will handle
 657                            putting out the space.  */
 658                         if (s[1] != 'n')
 659                           (*info->fprintf_func) (info->stream, " ");
 660                         break;
 661                       case 'X':
 662                         (*info->fprintf_func) (info->stream, "%s",
 663                                                shift_cond_64_names[GET_FIELD (insn, 16, 18)]);
 664                         break;
 665                       case 'B':
 666                         (*info->fprintf_func)
 667                           (info->stream, "%s",
 668                            bb_cond_64_names[GET_FIELD (insn, 16, 16)]);
 669
 670                         /* If the next character in args is 'n', it will handle
 671                            putting out the space.  */
 672                         if (s[1] != 'n')
 673                           (*info->fprintf_func) (info->stream, " ");
 674                         break;
 675                       }
 676                     break;
 677                   }
 678
 679                 case 'V':
 680                   fput_const (extract_5_store (insn), info);
 681                   break;
 682                 case 'r':
 683                   fput_const (extract_5r_store (insn), info);
 684                   break;
 685                 case 'R':
 686                   fput_const (extract_5R_store (insn), info);
 687                   break;
 688                 case 'U':
 689                   fput_const (extract_10U_store (insn), info);
 690                   break;
 691                 case 'Q':
 692                   fput_const (extract_5Q_store (insn), info);
 693                   break;
 694                 case 'i':
 695                   fput_const (extract_11 (insn), info);
 696                   break;
 697                 case 'j':
 698                   fput_const (extract_14 (insn), info);
 699                   break;
 700                 case 'k':
 701                   fput_const (extract_21 (insn), info);
 702                   break;
 703                 case 'n':
 704                   if (insn & 0x2)
 705                     (*info->fprintf_func) (info->stream, ",n ");
 706                   else
 707                     (*info->fprintf_func) (info->stream, " ");
 708                   break;
 709                 case 'N':
 710                   if ((insn & 0x20) && s[1])
 711                     (*info->fprintf_func) (info->stream, ",n ");
 712                   else if (insn & 0x20)
 713                     (*info->fprintf_func) (info->stream, ",n");
 714                   else if (s[1])
 715                     (*info->fprintf_func) (info->stream, " ");
 716                   break;
 717                 case 'w':
 718                   (*info->print_address_func) (memaddr + 8 + extract_12 (insn),
 719                                                info);
 720                   break;
 721                 case 'W':
 722                   /* 17 bit PC-relative branch.  */
 723                   (*info->print_address_func) ((memaddr + 8
 724                                                 + extract_17 (insn)),
 725                                                info);
 726                   break;
 727                 case 'z':
 728                   /* 17 bit displacement.  This is an offset from a register
 729                      so it gets disasssembled as just a number, not any sort
 730                      of address.  */
 731                   fput_const (extract_17 (insn), info);
 732                   break;
 733                 case '.':
 734                   (*info->fprintf_func) (info->stream, "%d",
 735                                     GET_FIELD (insn, 24, 25));
 736                   break;
 737                 case '*':
 738                   (*info->fprintf_func) (info->stream, "%d",
 739                                     GET_FIELD (insn, 22, 25));
 740                   break;
 741                 case '!':
 742                   (*info->fprintf_func) (info->stream, "%sar");
 743                   break;
 744                 case 'p':
 745                   (*info->fprintf_func) (info->stream, "%d",
 746                                     31 - GET_FIELD (insn, 22, 26));
 747                   break;
 748                 case '~':
 749                   {
 750                     int num;
 751                     num = GET_FIELD (insn, 20, 20) << 5;
 752                     num |= GET_FIELD (insn, 22, 26);
 753                     (*info->fprintf_func) (info->stream, "%d", 63 - num);
 754                     break;
 755                   }
 756                 case 'P':
 757                   (*info->fprintf_func) (info->stream, "%d",
 758                                     GET_FIELD (insn, 22, 26));
 759                   break;
 760                 case 'T':
 761                   (*info->fprintf_func) (info->stream, "%d",
 762                                     32 - GET_FIELD (insn, 27, 31));
 763                   break;
 764                 case '$':
 765                   fput_const (GET_FIELD (insn, 20, 28), info);
 766                   break;
 767                 case 'A':
 768                   fput_const (GET_FIELD (insn, 6, 18), info);
 769                   break;
 770                 case 'D':
 771                   fput_const (GET_FIELD (insn, 6, 31), info);
 772                   break;
 773                 case 'f':
 774                   (*info->fprintf_func) (info->stream, ",%d", GET_FIELD (insn, 23, 25));
 775                   break;
 776                 case 'O':
 777                   fput_const ((GET_FIELD (insn, 6,20) << 5 |
 778                                GET_FIELD (insn, 27, 31)), info);
 779                   break;
 780                 case 'o':
 781                   fput_const (GET_FIELD (insn, 6, 20), info);
 782                   break;
 783                 case '3':
 784                   {
 785                     int reg = GET_FIELD (insn, 21, 22);
 786                     reg |= GET_FIELD (insn, 16, 18) << 2;
 787                     if (GET_FIELD (insn, 23, 23) != 0)
 788                       fput_fp_reg_r (reg, info);
 789                     else
 790                       fput_fp_reg (reg, info);
 791                     break;
 792                   }
 793
 794                 case '2':
 795                   fput_const ((GET_FIELD (insn, 6, 22) << 5 |
 796                                GET_FIELD (insn, 27, 31)), info);
 797                   break;
 798                 case '1':
 799                   fput_const ((GET_FIELD (insn, 11, 20) << 5 |
 800                                GET_FIELD (insn, 27, 31)), info);
 801                   break;
 802                 case '0':
 803                   fput_const ((GET_FIELD (insn, 16, 20) << 5 |
 804                                GET_FIELD (insn, 27, 31)), info);
 805                   break;
 806                 case 'u':
 807                   (*info->fprintf_func) (info->stream, ",%d", GET_FIELD (insn, 23, 25));
 808                   break;
 809                 case 'F':
 810                   /* if no destination completer and not before a completer
 811                      for fcmp, need a space here */
 812                   if (s[1] == 'G' || s[1] == '?')
 813                     fputs_filtered (float_format_names[GET_FIELD (insn, 19, 20)],
 814                                     info);
 815                   else
 816                     (*info->fprintf_func) (info->stream, "%s ",
 817                                            float_format_names[GET_FIELD
 818                                                               (insn, 19, 20)]);
 819                   break;
 820                 case 'G':
 821                   (*info->fprintf_func) (info->stream, "%s ",
 822                                     float_format_names[GET_FIELD (insn,
 823                                                                   17, 18)]);
 824                   break;
 825                 case 'H':
 826                   if (GET_FIELD (insn, 26, 26) == 1)
 827                     (*info->fprintf_func) (info->stream, "%s ",
 828                                     float_format_names[0]);
 829                   else
 830                     (*info->fprintf_func) (info->stream, "%s ",
 831                                     float_format_names[1]);
 832                   break;
 833                 case 'I':
 834                   /* if no destination completer and not before a completer
 835                      for fcmp, need a space here */
 836                   if (s[1] == '?')
 837                     fputs_filtered (float_format_names[GET_FIELD (insn, 20, 20)],
 838                                     info);
 839                   else
 840                     (*info->fprintf_func) (info->stream, "%s ",
 841                                            float_format_names[GET_FIELD
 842                                                               (insn, 20, 20)]);
 843                   break;
 844                 case 'J':
 845                   if (GET_FIELD (insn, 24, 24))
 846                       fput_fp_reg_r (GET_FIELD (insn, 6, 10), info);
 847                   else
 848                       fput_fp_reg (GET_FIELD (insn, 6, 10), info);
 849
 850                   break;
 851                 case 'K':
 852                   if (GET_FIELD (insn, 19, 19))
 853                       fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
 854                   else
 855                       fput_fp_reg (GET_FIELD (insn, 11, 15), info);
 856                   break;
 857                 default:
 858                   (*info->fprintf_func) (info->stream, "%c", *s);
 859                   break;
 860                 }
 861             }
 862           return sizeof(insn);
 863         }
 864     }
 865   (*info->fprintf_func) (info->stream, "#%8x", insn);
 866   return sizeof(insn);
 867 }