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 *const control_reg[] = {
  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 *const compare_cond_names[] = {
  71   "", ",=", ",<", ",<=", ",<<", ",<<=", ",sv", ",od",
  72   ",tr", ",<>", ",>=", ",>", ",>>=", ",>>", ",nsv", ",ev"
  73 };
  74 static const char *const compare_cond_64_names[] = {
  75   "", ",*=", ",*<", ",*<=", ",*<<", ",*<<=", ",*sv", ",*od",
  76   ",*tr", ",*<>", ",*>=", ",*>", ",*>>=", ",*>>", ",*nsv", ",*ev"
  77 };
  78 static const char *const cmpib_cond_64_names[] = {
  79   ",*<<", ",*=", ",*<", ",*<=", ",*>>=", ",*<>", ",*>=", ",*>"
  80 };
  81 static const char *const add_cond_names[] = {
  82   "", ",=", ",<", ",<=", ",nuv", ",znv", ",sv", ",od",
  83   ",tr", ",<>", ",>=", ",>", ",uv", ",vnz", ",nsv", ",ev"
  84 };
  85 static const char *const add_cond_64_names[] = {
  86   "", ",*=", ",*<", ",*<=", ",*nuv", ",*znv", ",*sv", ",*od",
  87   ",*tr", ",*<>", ",*>=", ",*>", ",*uv", ",*vnz", ",*nsv", ",*ev"
  88 };
  89 static const char *const wide_add_cond_names[] = {
  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 *const shift_cond_names[] = {
 108   "", ",=", ",<", ",od", ",tr", ",<>", ",>=", ",ev"
 109 };
 110 static const char *const shift_cond_64_names[] = {
 111   "", ",*=", ",*<", ",*od", ",*tr", ",*<>", ",*>=", ",*ev"
 112 };
 113 static const char *const bb_cond_64_names[] = {
 114   ",*<", ",*>="
 115 };
 116 static const char *const index_compl_names[] = {"", ",m", ",s", ",sm"};
 117 static const char *const short_ldst_compl_names[] = {"", ",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 *const float_comp_names[] =
 123 {
 124   ",false?", ",false", ",?", ",!<=>", ",=", ",=t", ",?=", ",!<>",
 125   ",!?>=", ",<", ",?<", ",!>=", ",!?>", ",<=", ",?<=", ",!>",
 126   ",!?<=", ",>", ",?>", ",!<=", ",!?<", ",>=", ",?>=", ",!<",
 127   ",!?=", ",<>", ",!=", ",!=t", ",!?", ",<=>", ",true?", ",true"
 128 };
 129 static const char *const signed_unsigned_names[] = {",u", ",s"};
 130 static const char *const mix_half_names[] = {",l", ",r"};
 131 static const char *const saturation_names[] = {",us", ",ss", 0, ""};
 132 static const char *const read_write_names[] = {",r", ",w"};
 133 static const char *const add_compl_names[] = { 0, "", ",l", ",tsv" };
 134
 135 /* For a bunch of different instructions form an index into a
 136    completer name table. */
 137 #define GET_COMPL(insn) (GET_FIELD (insn, 26, 26) | \
 138                          GET_FIELD (insn, 18, 18) << 1)
 139
 140 #define GET_COND(insn) (GET_FIELD ((insn), 16, 18) + \
 141                         (GET_FIELD ((insn), 19, 19) ? 8 : 0))
 142
 143 /* Utility function to print registers.  Put these first, so gcc's function
 144    inlining can do its stuff.  */
 145
 146 #define fputs_filtered(STR,F)   (*info->fprintf_func) (info->stream, "%s", STR)
 147
 148 static void
 149 fput_reg (reg, info)
 150      unsigned reg;
 151      disassemble_info *info;
 152 {
 153   (*info->fprintf_func) (info->stream, reg ? reg_names[reg] : "r0");
 154 }
 155
 156 static void
 157 fput_fp_reg (reg, info)
 158      unsigned reg;
 159      disassemble_info *info;
 160 {
 161   (*info->fprintf_func) (info->stream, reg ? fp_reg_names[reg] : "fr0");
 162 }
 163
 164 static void
 165 fput_fp_reg_r (reg, info)
 166      unsigned reg;
 167      disassemble_info *info;
 168 {
 169   /* Special case floating point exception registers.  */
 170   if (reg < 4)
 171     (*info->fprintf_func) (info->stream, "fpe%d", reg * 2 + 1);
 172   else
 173     (*info->fprintf_func) (info->stream, "%sR", reg ? fp_reg_names[reg]
 174                                                     : "fr0");
 175 }
 176
 177 static void
 178 fput_creg (reg, info)
 179      unsigned reg;
 180      disassemble_info *info;
 181 {
 182   (*info->fprintf_func) (info->stream, control_reg[reg]);
 183 }
 184
 185 /* print constants with sign */
 186
 187 static void
 188 fput_const (num, info)
 189      unsigned num;
 190      disassemble_info *info;
 191 {
 192   if ((int)num < 0)
 193     (*info->fprintf_func) (info->stream, "-%x", -(int)num);
 194   else
 195     (*info->fprintf_func) (info->stream, "%x", num);
 196 }
 197
 198 /* Routines to extract various sized constants out of hppa
 199    instructions. */
 200
 201 /* extract a 3-bit space register number from a be, ble, mtsp or mfsp */
 202 static int
 203 extract_3 (word)
 204      unsigned word;
 205 {
 206   return GET_FIELD (word, 18, 18) << 2 | GET_FIELD (word, 16, 17);
 207 }
 208
 209 static int
 210 extract_5_load (word)
 211      unsigned word;
 212 {
 213   return low_sign_extend (word >> 16 & MASK_5, 5);
 214 }
 215
 216 /* extract the immediate field from a st{bhw}s instruction */
 217 static int
 218 extract_5_store (word)
 219      unsigned word;
 220 {
 221   return low_sign_extend (word & MASK_5, 5);
 222 }
 223
 224 /* extract the immediate field from a break instruction */
 225 static unsigned
 226 extract_5r_store (word)
 227      unsigned word;
 228 {
 229   return (word & MASK_5);
 230 }
 231
 232 /* extract the immediate field from a {sr}sm instruction */
 233 static unsigned
 234 extract_5R_store (word)
 235      unsigned word;
 236 {
 237   return (word >> 16 & MASK_5);
 238 }
 239
 240 /* extract the 10 bit immediate field from a {sr}sm instruction */
 241 static unsigned
 242 extract_10U_store (word)
 243      unsigned word;
 244 {
 245   return (word >> 16 & MASK_10);
 246 }
 247
 248 /* extract the immediate field from a bb instruction */
 249 static unsigned
 250 extract_5Q_store (word)
 251      unsigned word;
 252 {
 253   return (word >> 21 & MASK_5);
 254 }
 255
 256 /* extract an 11 bit immediate field */
 257 static int
 258 extract_11 (word)
 259      unsigned word;
 260 {
 261   return low_sign_extend (word & MASK_11, 11);
 262 }
 263
 264 /* extract a 14 bit immediate field */
 265 static int
 266 extract_14 (word)
 267      unsigned word;
 268 {
 269   return low_sign_extend (word & MASK_14, 14);
 270 }
 271
 272 /* extract a 21 bit constant */
 273
 274 static int
 275 extract_21 (word)
 276      unsigned word;
 277 {
 278   int val;
 279
 280   word &= MASK_21;
 281   word <<= 11;
 282   val = GET_FIELD (word, 20, 20);
 283   val <<= 11;
 284   val |= GET_FIELD (word, 9, 19);
 285   val <<= 2;
 286   val |= GET_FIELD (word, 5, 6);
 287   val <<= 5;
 288   val |= GET_FIELD (word, 0, 4);
 289   val <<= 2;
 290   val |= GET_FIELD (word, 7, 8);
 291   return sign_extend (val, 21) << 11;
 292 }
 293
 294 /* extract a 12 bit constant from branch instructions */
 295
 296 static int
 297 extract_12 (word)
 298      unsigned word;
 299 {
 300   return sign_extend (GET_FIELD (word, 19, 28) |
 301                       GET_FIELD (word, 29, 29) << 10 |
 302                       (word & 0x1) << 11, 12) << 2;
 303 }
 304
 305 /* extract a 17 bit constant from branch instructions, returning the
 306    19 bit signed value. */
 307
 308 static int
 309 extract_17 (word)
 310      unsigned word;
 311 {
 312   return sign_extend (GET_FIELD (word, 19, 28) |
 313                       GET_FIELD (word, 29, 29) << 10 |
 314                       GET_FIELD (word, 11, 15) << 11 |
 315                       (word & 0x1) << 16, 17) << 2;
 316 }
 317
 318 /* Print one instruction.  */
 319 int
 320 print_insn_hppa (memaddr, info)
 321      bfd_vma memaddr;
 322      disassemble_info *info;
 323 {
 324   bfd_byte buffer[4];
 325   unsigned int insn, i;
 326
 327   {
 328     int status =
 329       (*info->read_memory_func) (memaddr, buffer, sizeof (buffer), info);
 330     if (status != 0)
 331       {
 332         (*info->memory_error_func) (status, memaddr, info);
 333         return -1;
 334       }
 335   }
 336
 337   insn = bfd_getb32 (buffer);
 338
 339   for (i = 0; i < NUMOPCODES; ++i)
 340     {
 341       const struct pa_opcode *opcode = &pa_opcodes[i];
 342       if ((insn & opcode->mask) == opcode->match)
 343         {
 344           register const char *s;
 345
 346           (*info->fprintf_func) (info->stream, "%s", opcode->name);
 347
 348           if (!strchr ("cfCY?-+nHNZFIuv", opcode->args[0]))
 349             (*info->fprintf_func) (info->stream, " ");
 350           for (s = opcode->args; *s != '\0'; ++s)
 351             {
 352               switch (*s)
 353                 {
 354                 case 'x':
 355                   fput_reg (GET_FIELD (insn, 11, 15), info);
 356                   break;
 357                 case 'a':
 358                 case 'b':
 359                   fput_reg (GET_FIELD (insn, 6, 10), info);
 360                   break;
 361                 case '^':
 362                   fput_creg (GET_FIELD (insn, 6, 10), info);
 363                   break;
 364                 case 't':
 365                   fput_reg (GET_FIELD (insn, 27, 31), info);
 366                   break;
 367
 368                 /* Handle floating point registers.  */
 369                 case 'f':
 370                   switch (*++s)
 371                     {
 372                     case 't':
 373                       fput_fp_reg (GET_FIELD (insn, 27, 31), info);
 374                       break;
 375                     case 'T':
 376                       if (GET_FIELD (insn, 25, 25))
 377                         fput_fp_reg_r (GET_FIELD (insn, 27, 31), info);
 378                       else
 379                         fput_fp_reg (GET_FIELD (insn, 27, 31), info);
 380                       break;
 381                     case 'a':
 382                       if (GET_FIELD (insn, 25, 25))
 383                         fput_fp_reg_r (GET_FIELD (insn, 6, 10), info);
 384                       else
 385                         fput_fp_reg (GET_FIELD (insn, 6, 10), info);
 386                       break;
 387
 388                     /* 'fA' will not generate a space before the regsiter
 389                         name.  Normally that is fine.  Except that it
 390                         causes problems with xmpyu which has no FP format
 391                         completer.  */
 392                     case 'X':
 393                       fputs_filtered (" ", info);
 394
 395                     /* FALLTHRU */
 396
 397                     case 'A':
 398                       if (GET_FIELD (insn, 24, 24))
 399                         fput_fp_reg_r (GET_FIELD (insn, 6, 10), info);
 400                       else
 401                         fput_fp_reg (GET_FIELD (insn, 6, 10), info);
 402
 403                       break;
 404                     case 'b':
 405                       if (GET_FIELD (insn, 25, 25))
 406                         fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
 407                       else
 408                         fput_fp_reg (GET_FIELD (insn, 11, 15), info);
 409                       break;
 410                     case 'B':
 411                       if (GET_FIELD (insn, 19, 19))
 412                         fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
 413                       else
 414                         fput_fp_reg (GET_FIELD (insn, 11, 15), info);
 415                       break;
 416                     case 'C':
 417                       {
 418                         int reg = GET_FIELD (insn, 21, 22);
 419                         reg |= GET_FIELD (insn, 16, 18) << 2;
 420                         if (GET_FIELD (insn, 23, 23) != 0)
 421                           fput_fp_reg_r (reg, info);
 422                         else
 423                           fput_fp_reg (reg, info);
 424                         break;
 425                       }
 426                     case 'i':
 427                       {
 428                         int reg = GET_FIELD (insn, 6, 10);
 429
 430                         reg |= (GET_FIELD (insn, 26, 26) << 4);
 431                         fput_fp_reg (reg, info);
 432                         break;
 433                       }
 434                     case 'j':
 435                       {
 436                         int reg = GET_FIELD (insn, 11, 15);
 437
 438                         reg |= (GET_FIELD (insn, 26, 26) << 4);
 439                         fput_fp_reg (reg, info);
 440                         break;
 441                       }
 442                     case 'k':
 443                       {
 444                         int reg = GET_FIELD (insn, 27, 31);
 445
 446                         reg |= (GET_FIELD (insn, 26, 26) << 4);
 447                         fput_fp_reg (reg, info);
 448                         break;
 449                       }
 450                     case 'l':
 451                       {
 452                         int reg = GET_FIELD (insn, 21, 25);
 453
 454                         reg |= (GET_FIELD (insn, 26, 26) << 4);
 455                         fput_fp_reg (reg, info);
 456                         break;
 457                       }
 458                     case 'm':
 459                       {
 460                         int reg = GET_FIELD (insn, 16, 20);
 461
 462                         reg |= (GET_FIELD (insn, 26, 26) << 4);
 463                         fput_fp_reg (reg, info);
 464                         break;
 465                       }
 466                     }
 467                   break;
 468
 469                 case '5':
 470                   fput_const (extract_5_load (insn), info);
 471                   break;
 472                 case 's':
 473                   (*info->fprintf_func) (info->stream,
 474                                          "sr%d", GET_FIELD (insn, 16, 17));
 475                   break;
 476
 477                 case 'S':
 478                   (*info->fprintf_func) (info->stream, "sr%d", extract_3 (insn));
 479                   break;
 480
 481                 /* Handle completers.  */
 482                 case 'c':
 483                   switch (*++s)
 484                     {
 485                     case 'x':
 486                       (*info->fprintf_func) (info->stream, "%s ",
 487                                              index_compl_names[GET_COMPL (insn)]);
 488                       break;
 489                     case 'm':
 490                       (*info->fprintf_func) (info->stream, "%s ",
 491                                              short_ldst_compl_names[GET_COMPL (insn)]);
 492                       break;
 493                     case 'q':
 494                       (*info->fprintf_func)
 495                         (info->stream, "%s ",
 496                          short_ldst_compl_names[(GET_FIELD (insn, 28, 28)
 497                                                  | GET_FIELD (insn, 29, 29))]);
 498                       break;
 499                     case 's':
 500                       (*info->fprintf_func) (info->stream, "%s ",
 501                                              short_bytes_compl_names[GET_COMPL (insn)]);
 502                       break;
 503                     case 'L':
 504                       (*info->fprintf_func) (info->stream, ",l");
 505                       break;
 506                     case 'w':
 507                       (*info->fprintf_func) (info->stream, "%s ",
 508                                              read_write_names[GET_FIELD (insn, 25, 25)]);
 509                       break;
 510                     case 'W':
 511                       (*info->fprintf_func) (info->stream, ",w");
 512                       break;
 513                     case 'r':
 514                       if (GET_FIELD (insn, 23, 26) == 5)
 515                         (*info->fprintf_func) (info->stream, ",r");
 516                       break;
 517                     case 'Z':
 518                       if (GET_FIELD (insn, 26, 26))
 519                         (*info->fprintf_func) (info->stream, ",m ");
 520                       else
 521                         (*info->fprintf_func) (info->stream, " ");
 522                       break;
 523                     case 'i':
 524                       if (GET_FIELD (insn, 25, 25))
 525                         (*info->fprintf_func) (info->stream, ",i");
 526                       break;
 527                     case 'z':
 528                       if (!GET_FIELD (insn, 21, 21))
 529                         (*info->fprintf_func) (info->stream, ",z");
 530                       break;
 531                     case 'a':
 532                       (*info->fprintf_func)
 533                         (info->stream, "%s", add_compl_names[GET_FIELD
 534                                                             (insn, 20, 21)]);
 535                       break;
 536                     case 'Y':
 537                       (*info->fprintf_func)
 538                         (info->stream, ",dc%s", add_compl_names[GET_FIELD
 539                                                                (insn, 20, 21)]);
 540                       break;
 541                     case 'y':
 542                       (*info->fprintf_func)
 543                         (info->stream, ",c%s", add_compl_names[GET_FIELD
 544                                                               (insn, 20, 21)]);
 545                       break;
 546                     case 'v':
 547                       if (GET_FIELD (insn, 20, 20))
 548                         (*info->fprintf_func) (info->stream, ",tsv");
 549                       break;
 550                     case 't':
 551                       (*info->fprintf_func) (info->stream, ",tc");
 552                       if (GET_FIELD (insn, 20, 20))
 553                         (*info->fprintf_func) (info->stream, ",tsv");
 554                       break;
 555                     case 'B':
 556                       (*info->fprintf_func) (info->stream, ",db");
 557                       if (GET_FIELD (insn, 20, 20))
 558                         (*info->fprintf_func) (info->stream, ",tsv");
 559                       break;
 560                     case 'b':
 561                       (*info->fprintf_func) (info->stream, ",b");
 562                       if (GET_FIELD (insn, 20, 20))
 563                         (*info->fprintf_func) (info->stream, ",tsv");
 564                       break;
 565                     case 'T':
 566                       if (GET_FIELD (insn, 25, 25))
 567                         (*info->fprintf_func) (info->stream, ",tc");
 568                       break;
 569                     case 'S':
 570                       /* EXTRD/W has a following condition.  */
 571                       if (*(s + 1) == '?')
 572                         (*info->fprintf_func)
 573                           (info->stream, "%s", signed_unsigned_names[GET_FIELD
 574                                                                     (insn, 21, 21)]);
 575                       else
 576                         (*info->fprintf_func)
 577                           (info->stream, "%s ", signed_unsigned_names[GET_FIELD
 578                                                                      (insn, 21, 21)]);
 579                       break;
 580                     case 'h':
 581                       (*info->fprintf_func)
 582                           (info->stream, "%s", mix_half_names[GET_FIELD
 583                                                              (insn, 17, 17)]);
 584                       break;
 585                     case 'H':
 586                       (*info->fprintf_func)
 587                           (info->stream, "%s", saturation_names[GET_FIELD
 588                                                                (insn, 24, 25)]);
 589                       break;
 590                     case '*':
 591                       (*info->fprintf_func)
 592                           (info->stream, ",%d%d%d%d ",
 593                            GET_FIELD (insn, 17, 18), GET_FIELD (insn, 20, 21),
 594                            GET_FIELD (insn, 22, 23), GET_FIELD (insn, 24, 25));
 595                       break;
 596                     }
 597                   break;
 598
 599                 /* Handle conditions.  */
 600                 case '?':
 601                   {
 602                     s++;
 603                     switch (*s)
 604                       {
 605                       case 'f':
 606                         (*info->fprintf_func) (info->stream, "%s ",
 607                                                float_comp_names[GET_FIELD
 608                                                                (insn, 27, 31)]);
 609                         break;
 610
 611                       /* these four conditions are for the set of instructions
 612                            which distinguish true/false conditions by opcode
 613                            rather than by the 'f' bit (sigh): comb, comib,
 614                            addb, addib */
 615                       case 't':
 616                         fputs_filtered (compare_cond_names[GET_FIELD (insn, 16, 18)],
 617                                         info);
 618                         break;
 619                       case 'T':
 620                         fputs_filtered (compare_cond_names[GET_FIELD (insn, 16, 18)
 621                                                           + 8], info);
 622                         break;
 623                       case 'r':
 624                         fputs_filtered (compare_cond_64_names[GET_FIELD (insn, 16, 18)],
 625                                         info);
 626                         break;
 627                       case 'R':
 628                         fputs_filtered (compare_cond_64_names[GET_FIELD (insn, 16, 18)
 629                                                              + 8], info);
 630                         break;
 631                       case 'Q':
 632                         fputs_filtered (cmpib_cond_64_names[GET_FIELD (insn, 16, 18)],
 633                                         info);
 634                         break;
 635                       case 'n':
 636                         fputs_filtered (compare_cond_names[GET_FIELD (insn, 16, 18)
 637                                         + GET_FIELD (insn, 4, 4) * 8], info);
 638                         break;
 639                       case '@':
 640                         fputs_filtered (add_cond_names[GET_FIELD (insn, 16, 18)
 641                                         + GET_FIELD (insn, 4, 4) * 8], info);
 642                         break;
 643                       case 's':
 644                         (*info->fprintf_func) (info->stream, "%s ",
 645                                                compare_cond_names[GET_COND (insn)]);
 646                         break;
 647                       case 'S':
 648                         (*info->fprintf_func) (info->stream, "%s ",
 649                                                compare_cond_64_names[GET_COND (insn)]);
 650                         break;
 651                       case 'a':
 652                         (*info->fprintf_func) (info->stream, "%s ",
 653                                                add_cond_names[GET_COND (insn)]);
 654                         break;
 655                       case 'A':
 656                         (*info->fprintf_func) (info->stream, "%s ",
 657                                                add_cond_64_names[GET_COND (insn)]);
 658                         break;
 659                       case 'd':
 660                         (*info->fprintf_func) (info->stream, "%s",
 661                                                add_cond_names[GET_FIELD (insn, 16, 18)]);
 662                         break;
 663
 664                       case 'D':
 665                         (*info->fprintf_func) (info->stream, "%s",
 666                                                add_cond_names[GET_FIELD (insn, 16, 18)
 667                                                              + 8]);
 668                         break;
 669                       case 'w':
 670                         (*info->fprintf_func)
 671                           (info->stream, "%s",
 672                            wide_add_cond_names[GET_FIELD (insn, 16, 18)]);
 673                         break;
 674
 675                       case 'W':
 676                         (*info->fprintf_func)
 677                           (info->stream, "%s",
 678                            wide_add_cond_names[GET_FIELD (insn, 16, 18) + 8]);
 679                         break;
 680
 681                       case 'l':
 682                         (*info->fprintf_func) (info->stream, "%s ",
 683                                                logical_cond_names[GET_COND (insn)]);
 684                         break;
 685                       case 'L':
 686                         (*info->fprintf_func) (info->stream, "%s ",
 687                                                logical_cond_64_names[GET_COND (insn)]);
 688                         break;
 689                       case 'u':
 690                         (*info->fprintf_func) (info->stream, "%s ",
 691                                                unit_cond_names[GET_COND (insn)]);
 692                         break;
 693                       case 'U':
 694                         (*info->fprintf_func) (info->stream, "%s ",
 695                                                unit_cond_64_names[GET_COND (insn)]);
 696                         break;
 697                       case 'y':
 698                       case 'x':
 699                       case 'b':
 700                         (*info->fprintf_func)
 701                           (info->stream, "%s",
 702                            shift_cond_names[GET_FIELD (insn, 16, 18)]);
 703
 704                         /* If the next character in args is 'n', it will handle
 705                            putting out the space.  */
 706                         if (s[1] != 'n')
 707                           (*info->fprintf_func) (info->stream, " ");
 708                         break;
 709                       case 'X':
 710                         (*info->fprintf_func) (info->stream, "%s ",
 711                                                shift_cond_64_names[GET_FIELD (insn, 16, 18)]);
 712                         break;
 713                       case 'B':
 714                         (*info->fprintf_func)
 715                           (info->stream, "%s",
 716                            bb_cond_64_names[GET_FIELD (insn, 16, 16)]);
 717
 718                         /* If the next character in args is 'n', it will handle
 719                            putting out the space.  */
 720                         if (s[1] != 'n')
 721                           (*info->fprintf_func) (info->stream, " ");
 722                         break;
 723                       }
 724                     break;
 725                   }
 726
 727                 case 'V':
 728                   fput_const (extract_5_store (insn), info);
 729                   break;
 730                 case 'r':
 731                   fput_const (extract_5r_store (insn), info);
 732                   break;
 733                 case 'R':
 734                   fput_const (extract_5R_store (insn), info);
 735                   break;
 736                 case 'U':
 737                   fput_const (extract_10U_store (insn), info);
 738                   break;
 739                 case 'Q':
 740                   fput_const (extract_5Q_store (insn), info);
 741                   break;
 742                 case 'i':
 743                   fput_const (extract_11 (insn), info);
 744                   break;
 745                 case 'j':
 746                   fput_const (extract_14 (insn), info);
 747                   break;
 748                 case 'k':
 749                   fput_const (extract_21 (insn), info);
 750                   break;
 751                 case 'n':
 752                   if (insn & 0x2)
 753                     (*info->fprintf_func) (info->stream, ",n ");
 754                   else
 755                     (*info->fprintf_func) (info->stream, " ");
 756                   break;
 757                 case 'N':
 758                   if ((insn & 0x20) && s[1])
 759                     (*info->fprintf_func) (info->stream, ",n ");
 760                   else if (insn & 0x20)
 761                     (*info->fprintf_func) (info->stream, ",n");
 762                   else if (s[1])
 763                     (*info->fprintf_func) (info->stream, " ");
 764                   break;
 765                 case 'w':
 766                   (*info->print_address_func) (memaddr + 8 + extract_12 (insn),
 767                                                info);
 768                   break;
 769                 case 'W':
 770                   /* 17 bit PC-relative branch.  */
 771                   (*info->print_address_func) ((memaddr + 8
 772                                                 + extract_17 (insn)),
 773                                                info);
 774                   break;
 775                 case 'z':
 776                   /* 17 bit displacement.  This is an offset from a register
 777                      so it gets disasssembled as just a number, not any sort
 778                      of address.  */
 779                   fput_const (extract_17 (insn), info);
 780                   break;
 781
 782                 case 'Z':
 783                   /* addil %r1 implicit output.  */
 784                   (*info->fprintf_func) (info->stream, "%%r1");
 785                   break;
 786
 787                 case '.':
 788                   (*info->fprintf_func) (info->stream, "%d",
 789                                     GET_FIELD (insn, 24, 25));
 790                   break;
 791                 case '*':
 792                   (*info->fprintf_func) (info->stream, "%d",
 793                                     GET_FIELD (insn, 22, 25));
 794                   break;
 795                 case '!':
 796                   (*info->fprintf_func) (info->stream, "%%sar");
 797                   break;
 798                 case 'p':
 799                   (*info->fprintf_func) (info->stream, "%d",
 800                                     31 - GET_FIELD (insn, 22, 26));
 801                   break;
 802                 case '~':
 803                   {
 804                     int num;
 805                     num = GET_FIELD (insn, 20, 20) << 5;
 806                     num |= GET_FIELD (insn, 22, 26);
 807                     (*info->fprintf_func) (info->stream, "%d", 63 - num);
 808                     break;
 809                   }
 810                 case 'P':
 811                   (*info->fprintf_func) (info->stream, "%d",
 812                                     GET_FIELD (insn, 22, 26));
 813                   break;
 814                 case 'q':
 815                   {
 816                     int num;
 817                     num = GET_FIELD (insn, 20, 20) << 5;
 818                     num |= GET_FIELD (insn, 22, 26);
 819                     (*info->fprintf_func) (info->stream, "%d", num);
 820                     break;
 821                   }
 822                 case 'T':
 823                   (*info->fprintf_func) (info->stream, "%d",
 824                                     32 - GET_FIELD (insn, 27, 31));
 825                   break;
 826                 case '%':
 827                   {
 828                     int num;
 829                     num = (GET_FIELD (insn, 23, 23) + 1) * 32;
 830                     num -= GET_FIELD (insn, 27, 31);
 831                     (*info->fprintf_func) (info->stream, "%d", num);
 832                     break;
 833                   }
 834                 case '|':
 835                   {
 836                     int num;
 837                     num = (GET_FIELD (insn, 19, 19) + 1) * 32;
 838                     num -= GET_FIELD (insn, 27, 31);
 839                     (*info->fprintf_func) (info->stream, "%d", num);
 840                     break;
 841                   }
 842                 case '$':
 843                   fput_const (GET_FIELD (insn, 20, 28), info);
 844                   break;
 845                 case 'A':
 846                   fput_const (GET_FIELD (insn, 6, 18), info);
 847                   break;
 848                 case 'D':
 849                   fput_const (GET_FIELD (insn, 6, 31), info);
 850                   break;
 851                 case 'v':
 852                   (*info->fprintf_func) (info->stream, ",%d", GET_FIELD (insn, 23, 25));
 853                   break;
 854                 case 'O':
 855                   fput_const ((GET_FIELD (insn, 6,20) << 5 |
 856                                GET_FIELD (insn, 27, 31)), info);
 857                   break;
 858                 case 'o':
 859                   fput_const (GET_FIELD (insn, 6, 20), info);
 860                   break;
 861                 case '2':
 862                   fput_const ((GET_FIELD (insn, 6, 22) << 5 |
 863                                GET_FIELD (insn, 27, 31)), info);
 864                   break;
 865                 case '1':
 866                   fput_const ((GET_FIELD (insn, 11, 20) << 5 |
 867                                GET_FIELD (insn, 27, 31)), info);
 868                   break;
 869                 case '0':
 870                   fput_const ((GET_FIELD (insn, 16, 20) << 5 |
 871                                GET_FIELD (insn, 27, 31)), info);
 872                   break;
 873                 case 'u':
 874                   (*info->fprintf_func) (info->stream, ",%d", GET_FIELD (insn, 23, 25));
 875                   break;
 876                 case 'F':
 877                   /* if no destination completer and not before a completer
 878                      for fcmp, need a space here */
 879                   if (s[1] == 'G' || s[1] == '?')
 880                     fputs_filtered (float_format_names[GET_FIELD (insn, 19, 20)],
 881                                     info);
 882                   else
 883                     (*info->fprintf_func) (info->stream, "%s ",
 884                                            float_format_names[GET_FIELD
 885                                                               (insn, 19, 20)]);
 886                   break;
 887                 case 'G':
 888                   (*info->fprintf_func) (info->stream, "%s ",
 889                                     float_format_names[GET_FIELD (insn,
 890                                                                   17, 18)]);
 891                   break;
 892                 case 'H':
 893                   if (GET_FIELD (insn, 26, 26) == 1)
 894                     (*info->fprintf_func) (info->stream, "%s ",
 895                                     float_format_names[0]);
 896                   else
 897                     (*info->fprintf_func) (info->stream, "%s ",
 898                                     float_format_names[1]);
 899                   break;
 900                 case 'I':
 901                   /* if no destination completer and not before a completer
 902                      for fcmp, need a space here */
 903                   if (s[1] == '?')
 904                     fputs_filtered (float_format_names[GET_FIELD (insn, 20, 20)],
 905                                     info);
 906                   else
 907                     (*info->fprintf_func) (info->stream, "%s ",
 908                                            float_format_names[GET_FIELD
 909                                                               (insn, 20, 20)]);
 910                   break;
 911                 case '#':
 912                   {
 913                     int sign = GET_FIELD (insn, 31, 31);
 914                     int imm10 = GET_FIELD (insn, 18, 27);
 915                     int disp;
 916
 917                     if (sign)
 918                       disp = (-1 << 10) | imm10;
 919                     else
 920                       disp = imm10;
 921
 922                     disp <<= 3;
 923                     fput_const (disp, info);
 924                     break;
 925                   }
 926                 case 'd':
 927                   {
 928                     int sign = GET_FIELD (insn, 31, 31);
 929                     int imm11 = GET_FIELD (insn, 18, 28);
 930                     int disp;
 931
 932                     if (sign)
 933                       disp = (-1 << 11) | imm11;
 934                     else
 935                       disp = imm11;
 936
 937                     disp <<= 2;
 938                     fput_const (disp, info);
 939                     break;
 940                   }
 941
 942                 /* ?!? FIXME */
 943                 case '_':
 944                 case '{':
 945                   fputs_filtered ("Disassembler botch.\n", info);
 946                   break;
 947
 948                 case 'm':
 949                   {
 950                     int y = GET_FIELD (insn, 16, 18);
 951
 952                     if (y != 1)
 953                       fput_const ((y ^ 1) - 1, info);
 954                   }
 955                   break;
 956
 957                 case 'h':
 958                   {
 959                     int cbit;
 960
 961                     cbit = GET_FIELD (insn, 16, 18);
 962
 963                     if (cbit > 0)
 964                       (*info->fprintf_func) (info->stream, ",%d", cbit - 1);
 965                     break;
 966                   }
 967
 968                 case '=':
 969                   {
 970                     int cond = GET_FIELD (insn, 27, 31);
 971
 972                     if (cond == 0)
 973                       fputs_filtered (" ", info);
 974                     else if (cond == 1)
 975                       fputs_filtered ("acc ", info);
 976                     else if (cond == 2)
 977                       fputs_filtered ("rej ", info);
 978                     else if (cond == 5)
 979                       fputs_filtered ("acc8 ", info);
 980                     else if (cond == 6)
 981                       fputs_filtered ("rej8 ", info);
 982                     else if (cond == 9)
 983                       fputs_filtered ("acc6 ", info);
 984                     else if (cond == 13)
 985                       fputs_filtered ("acc4 ", info);
 986                     else if (cond == 17)
 987                       fputs_filtered ("acc2 ", info);
 988                     break;
 989                   }
 990
 991                 case 'X':
 992                   (*info->print_address_func) ((memaddr + 8
 993                                                 + extract_22 (insn)),
 994                                                info);
 995                   break;
 996                 case 'B':
 997                   fputs_filtered (",pop", info);
 998                   break;
 999                 case 'M':
1000                   fputs_filtered (",push", info);
1001                   break;
1002                 case 'L':
1003                   fputs_filtered (",%r2", info);
1004                   break;
1005                 case 'g':
1006                   fputs_filtered (",gate", info);
1007                   break;
1008                 case 'l':
1009                   fputs_filtered (",l", info);
1010                   break;
1011                 default:
1012                   (*info->fprintf_func) (info->stream, "%c", *s);
1013                   break;
1014                 }
1015             }
1016           return sizeof(insn);
1017         }
1018     }
1019   (*info->fprintf_func) (info->stream, "#%8x", insn);
1020   return sizeof(insn);
1021 }