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      1 /* Disassembler for the PA-RISC. Somewhat derived from sparc-pinsn.c.
      2    Copyright (C) 1989-2016 Free Software Foundation, Inc.
      3 
      4    Contributed by the Center for Software Science at the
      5    University of Utah (pa-gdb-bugs (at) cs.utah.edu).
      6 
      7    This file is part of the GNU opcodes library.
      8 
      9    This library is free software; you can redistribute it and/or modify
     10    it under the terms of the GNU General Public License as published by
     11    the Free Software Foundation; either version 3, or (at your option)
     12    any later version.
     13 
     14    It is distributed in the hope that it will be useful, but WITHOUT
     15    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     16    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
     17    License for more details.
     18 
     19    You should have received a copy of the GNU General Public License
     20    along with this program; if not, write to the Free Software
     21    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
     22    MA 02110-1301, USA.  */
     23 
     24 #include "sysdep.h"
     25 #include "dis-asm.h"
     26 #include "libhppa.h"
     27 #include "opcode/hppa.h"
     28 
     29 /* Integer register names, indexed by the numbers which appear in the
     30    opcodes.  */
     31 static const char *const reg_names[] =
     32 {
     33   "flags", "r1", "rp", "r3", "r4", "r5", "r6", "r7", "r8", "r9",
     34   "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19",
     35   "r20", "r21", "r22", "r23", "r24", "r25", "r26", "dp", "ret0", "ret1",
     36   "sp", "r31"
     37 };
     38 
     39 /* Floating point register names, indexed by the numbers which appear in the
     40    opcodes.  */
     41 static const char *const fp_reg_names[] =
     42 {
     43   "fpsr", "fpe2", "fpe4", "fpe6",
     44   "fr4", "fr5", "fr6", "fr7", "fr8",
     45   "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
     46   "fr16", "fr17", "fr18", "fr19", "fr20", "fr21", "fr22", "fr23",
     47   "fr24", "fr25", "fr26", "fr27", "fr28", "fr29", "fr30", "fr31"
     48 };
     49 
     50 typedef unsigned int CORE_ADDR;
     51 
     52 /* Get at various relevent fields of an instruction word.  */
     53 
     54 #define MASK_5  0x1f
     55 #define MASK_10 0x3ff
     56 #define MASK_11 0x7ff
     57 #define MASK_14 0x3fff
     58 #define MASK_16 0xffff
     59 #define MASK_21 0x1fffff
     60 
     61 /* These macros get bit fields using HP's numbering (MSB = 0).  */
     62 
     63 #define GET_FIELD(X, FROM, TO) \
     64   ((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1))
     65 
     66 #define GET_BIT(X, WHICH) \
     67   GET_FIELD (X, WHICH, WHICH)
     68 
     69 /* Some of these have been converted to 2-d arrays because they
     70    consume less storage this way.  If the maintenance becomes a
     71    problem, convert them back to const 1-d pointer arrays.  */
     72 static const char *const control_reg[] =
     73 {
     74   "rctr", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7",
     75   "pidr1", "pidr2", "ccr", "sar", "pidr3", "pidr4",
     76   "iva", "eiem", "itmr", "pcsq", "pcoq", "iir", "isr",
     77   "ior", "ipsw", "eirr", "tr0", "tr1", "tr2", "tr3",
     78   "tr4", "tr5", "tr6", "tr7"
     79 };
     80 
     81 static const char *const compare_cond_names[] =
     82 {
     83   "", ",=", ",<", ",<=", ",<<", ",<<=", ",sv", ",od",
     84   ",tr", ",<>", ",>=", ",>", ",>>=", ",>>", ",nsv", ",ev"
     85 };
     86 static const char *const compare_cond_64_names[] =
     87 {
     88   ",*", ",*=", ",*<", ",*<=", ",*<<", ",*<<=", ",*sv", ",*od",
     89   ",*tr", ",*<>", ",*>=", ",*>", ",*>>=", ",*>>", ",*nsv", ",*ev"
     90 };
     91 static const char *const cmpib_cond_64_names[] =
     92 {
     93   ",*<<", ",*=", ",*<", ",*<=", ",*>>=", ",*<>", ",*>=", ",*>"
     94 };
     95 static const char *const add_cond_names[] =
     96 {
     97   "", ",=", ",<", ",<=", ",nuv", ",znv", ",sv", ",od",
     98   ",tr", ",<>", ",>=", ",>", ",uv", ",vnz", ",nsv", ",ev"
     99 };
    100 static const char *const add_cond_64_names[] =
    101 {
    102   ",*", ",*=", ",*<", ",*<=", ",*nuv", ",*znv", ",*sv", ",*od",
    103   ",*tr", ",*<>", ",*>=", ",*>", ",*uv", ",*vnz", ",*nsv", ",*ev"
    104 };
    105 static const char *const wide_add_cond_names[] =
    106 {
    107   "", ",=", ",<", ",<=", ",nuv", ",*=", ",*<", ",*<=",
    108   ",tr", ",<>", ",>=", ",>", ",uv", ",*<>", ",*>=", ",*>"
    109 };
    110 static const char *const logical_cond_names[] =
    111 {
    112   "", ",=", ",<", ",<=", 0, 0, 0, ",od",
    113   ",tr", ",<>", ",>=", ",>", 0, 0, 0, ",ev"};
    114 static const char *const logical_cond_64_names[] =
    115 {
    116   ",*", ",*=", ",*<", ",*<=", 0, 0, 0, ",*od",
    117   ",*tr", ",*<>", ",*>=", ",*>", 0, 0, 0, ",*ev"};
    118 static const char *const unit_cond_names[] =
    119 {
    120   "", ",swz", ",sbz", ",shz", ",sdc", ",swc", ",sbc", ",shc",
    121   ",tr", ",nwz", ",nbz", ",nhz", ",ndc", ",nwc", ",nbc", ",nhc"
    122 };
    123 static const char *const unit_cond_64_names[] =
    124 {
    125   ",*", ",*swz", ",*sbz", ",*shz", ",*sdc", ",*swc", ",*sbc", ",*shc",
    126   ",*tr", ",*nwz", ",*nbz", ",*nhz", ",*ndc", ",*nwc", ",*nbc", ",*nhc"
    127 };
    128 static const char *const shift_cond_names[] =
    129 {
    130   "", ",=", ",<", ",od", ",tr", ",<>", ",>=", ",ev"
    131 };
    132 static const char *const shift_cond_64_names[] =
    133 {
    134   ",*", ",*=", ",*<", ",*od", ",*tr", ",*<>", ",*>=", ",*ev"
    135 };
    136 static const char *const bb_cond_64_names[] =
    137 {
    138   ",*<", ",*>="
    139 };
    140 static const char *const index_compl_names[] = {"", ",m", ",s", ",sm"};
    141 static const char *const short_ldst_compl_names[] = {"", ",ma", "", ",mb"};
    142 static const char *const short_bytes_compl_names[] =
    143 {
    144   "", ",b,m", ",e", ",e,m"
    145 };
    146 static const char *const float_format_names[] = {",sgl", ",dbl", "", ",quad"};
    147 static const char *const fcnv_fixed_names[] = {",w", ",dw", "", ",qw"};
    148 static const char *const fcnv_ufixed_names[] = {",uw", ",udw", "", ",uqw"};
    149 static const char *const float_comp_names[] =
    150 {
    151   ",false?", ",false", ",?", ",!<=>", ",=", ",=t", ",?=", ",!<>",
    152   ",!?>=", ",<", ",?<", ",!>=", ",!?>", ",<=", ",?<=", ",!>",
    153   ",!?<=", ",>", ",?>", ",!<=", ",!?<", ",>=", ",?>=", ",!<",
    154   ",!?=", ",<>", ",!=", ",!=t", ",!?", ",<=>", ",true?", ",true"
    155 };
    156 static const char *const signed_unsigned_names[] = {",u", ",s"};
    157 static const char *const mix_half_names[] = {",l", ",r"};
    158 static const char *const saturation_names[] = {",us", ",ss", 0, ""};
    159 static const char *const read_write_names[] = {",r", ",w"};
    160 static const char *const add_compl_names[] = { 0, "", ",l", ",tsv" };
    161 
    162 /* For a bunch of different instructions form an index into a
    163    completer name table.  */
    164 #define GET_COMPL(insn) (GET_FIELD (insn, 26, 26) | \
    165 			 GET_FIELD (insn, 18, 18) << 1)
    166 
    167 #define GET_COND(insn) (GET_FIELD ((insn), 16, 18) + \
    168 			(GET_FIELD ((insn), 19, 19) ? 8 : 0))
    169 
    170 /* Utility function to print registers.  Put these first, so gcc's function
    171    inlining can do its stuff.  */
    172 
    173 #define fputs_filtered(STR,F)	(*info->fprintf_func) (info->stream, "%s", STR)
    174 
    175 static void
    176 fput_reg (unsigned reg, disassemble_info *info)
    177 {
    178   (*info->fprintf_func) (info->stream, "%s", reg ? reg_names[reg] : "r0");
    179 }
    180 
    181 static void
    182 fput_fp_reg (unsigned reg, disassemble_info *info)
    183 {
    184   (*info->fprintf_func) (info->stream, "%s", reg ? fp_reg_names[reg] : "fr0");
    185 }
    186 
    187 static void
    188 fput_fp_reg_r (unsigned reg, disassemble_info *info)
    189 {
    190   /* Special case floating point exception registers.  */
    191   if (reg < 4)
    192     (*info->fprintf_func) (info->stream, "fpe%d", reg * 2 + 1);
    193   else
    194     (*info->fprintf_func) (info->stream, "%sR",
    195 			   reg ? fp_reg_names[reg] : "fr0");
    196 }
    197 
    198 static void
    199 fput_creg (unsigned reg, disassemble_info *info)
    200 {
    201   (*info->fprintf_func) (info->stream, "%s", control_reg[reg]);
    202 }
    203 
    204 /* Print constants with sign.  */
    205 
    206 static void
    207 fput_const (unsigned num, disassemble_info *info)
    208 {
    209   if ((int) num < 0)
    210     (*info->fprintf_func) (info->stream, "-%x", - (int) num);
    211   else
    212     (*info->fprintf_func) (info->stream, "%x", num);
    213 }
    214 
    215 /* Routines to extract various sized constants out of hppa
    216    instructions.  */
    217 
    218 /* Extract a 3-bit space register number from a be, ble, mtsp or mfsp.  */
    219 static int
    220 extract_3 (unsigned word)
    221 {
    222   return GET_FIELD (word, 18, 18) << 2 | GET_FIELD (word, 16, 17);
    223 }
    224 
    225 static int
    226 extract_5_load (unsigned word)
    227 {
    228   return low_sign_extend (word >> 16 & MASK_5, 5);
    229 }
    230 
    231 /* Extract the immediate field from a st{bhw}s instruction.  */
    232 
    233 static int
    234 extract_5_store (unsigned word)
    235 {
    236   return low_sign_extend (word & MASK_5, 5);
    237 }
    238 
    239 /* Extract the immediate field from a break instruction.  */
    240 
    241 static unsigned
    242 extract_5r_store (unsigned word)
    243 {
    244   return (word & MASK_5);
    245 }
    246 
    247 /* Extract the immediate field from a {sr}sm instruction.  */
    248 
    249 static unsigned
    250 extract_5R_store (unsigned word)
    251 {
    252   return (word >> 16 & MASK_5);
    253 }
    254 
    255 /* Extract the 10 bit immediate field from a {sr}sm instruction.  */
    256 
    257 static unsigned
    258 extract_10U_store (unsigned word)
    259 {
    260   return (word >> 16 & MASK_10);
    261 }
    262 
    263 /* Extract the immediate field from a bb instruction.  */
    264 
    265 static unsigned
    266 extract_5Q_store (unsigned word)
    267 {
    268   return (word >> 21 & MASK_5);
    269 }
    270 
    271 /* Extract an 11 bit immediate field.  */
    272 
    273 static int
    274 extract_11 (unsigned word)
    275 {
    276   return low_sign_extend (word & MASK_11, 11);
    277 }
    278 
    279 /* Extract a 14 bit immediate field.  */
    280 
    281 static int
    282 extract_14 (unsigned word)
    283 {
    284   return low_sign_extend (word & MASK_14, 14);
    285 }
    286 
    287 /* Extract a 16 bit immediate field (PA2.0 wide only).  */
    288 
    289 static int
    290 extract_16 (unsigned word)
    291 {
    292   int m15, m0, m1;
    293 
    294   m0 = GET_BIT (word, 16);
    295   m1 = GET_BIT (word, 17);
    296   m15 = GET_BIT (word, 31);
    297   word = (word >> 1) & 0x1fff;
    298   word = word | (m15 << 15) | ((m15 ^ m0) << 14) | ((m15 ^ m1) << 13);
    299   return sign_extend (word, 16);
    300 }
    301 
    302 /* Extract a 21 bit constant.  */
    303 
    304 static int
    305 extract_21 (unsigned word)
    306 {
    307   int val;
    308 
    309   word &= MASK_21;
    310   word <<= 11;
    311   val = GET_FIELD (word, 20, 20);
    312   val <<= 11;
    313   val |= GET_FIELD (word, 9, 19);
    314   val <<= 2;
    315   val |= GET_FIELD (word, 5, 6);
    316   val <<= 5;
    317   val |= GET_FIELD (word, 0, 4);
    318   val <<= 2;
    319   val |= GET_FIELD (word, 7, 8);
    320   return sign_extend (val, 21) << 11;
    321 }
    322 
    323 /* Extract a 12 bit constant from branch instructions.  */
    324 
    325 static int
    326 extract_12 (unsigned word)
    327 {
    328   return sign_extend (GET_FIELD (word, 19, 28)
    329 		      | GET_FIELD (word, 29, 29) << 10
    330 		      | (word & 0x1) << 11, 12) << 2;
    331 }
    332 
    333 /* Extract a 17 bit constant from branch instructions, returning the
    334    19 bit signed value.  */
    335 
    336 static int
    337 extract_17 (unsigned word)
    338 {
    339   return sign_extend (GET_FIELD (word, 19, 28)
    340 		      | GET_FIELD (word, 29, 29) << 10
    341 		      | GET_FIELD (word, 11, 15) << 11
    342 		      | (word & 0x1) << 16, 17) << 2;
    343 }
    344 
    345 static int
    346 extract_22 (unsigned word)
    347 {
    348   return sign_extend (GET_FIELD (word, 19, 28)
    349 		      | GET_FIELD (word, 29, 29) << 10
    350 		      | GET_FIELD (word, 11, 15) << 11
    351 		      | GET_FIELD (word, 6, 10) << 16
    352 		      | (word & 0x1) << 21, 22) << 2;
    353 }
    354 
    355 /* Print one instruction.  */
    356 
    357 int
    358 print_insn_hppa (bfd_vma memaddr, disassemble_info *info)
    359 {
    360   bfd_byte buffer[4];
    361   unsigned int insn, i;
    362 
    363   {
    364     int status =
    365       (*info->read_memory_func) (memaddr, buffer, sizeof (buffer), info);
    366     if (status != 0)
    367       {
    368 	(*info->memory_error_func) (status, memaddr, info);
    369 	return -1;
    370       }
    371   }
    372 
    373   insn = bfd_getb32 (buffer);
    374 
    375   for (i = 0; i < NUMOPCODES; ++i)
    376     {
    377       const struct pa_opcode *opcode = &pa_opcodes[i];
    378 
    379       if ((insn & opcode->mask) == opcode->match)
    380 	{
    381 	  const char *s;
    382 #ifndef BFD64
    383 	  if (opcode->arch == pa20w)
    384 	    continue;
    385 #endif
    386 	  (*info->fprintf_func) (info->stream, "%s", opcode->name);
    387 
    388 	  if (!strchr ("cfCY?-+nHNZFIuv{", opcode->args[0]))
    389 	    (*info->fprintf_func) (info->stream, " ");
    390 	  for (s = opcode->args; *s != '\0'; ++s)
    391 	    {
    392 	      switch (*s)
    393 		{
    394 		case 'x':
    395 		  fput_reg (GET_FIELD (insn, 11, 15), info);
    396 		  break;
    397 		case 'a':
    398 		case 'b':
    399 		  fput_reg (GET_FIELD (insn, 6, 10), info);
    400 		  break;
    401 		case '^':
    402 		  fput_creg (GET_FIELD (insn, 6, 10), info);
    403 		  break;
    404 		case 't':
    405 		  fput_reg (GET_FIELD (insn, 27, 31), info);
    406 		  break;
    407 
    408 		  /* Handle floating point registers.  */
    409 		case 'f':
    410 		  switch (*++s)
    411 		    {
    412 		    case 't':
    413 		      fput_fp_reg (GET_FIELD (insn, 27, 31), info);
    414 		      break;
    415 		    case 'T':
    416 		      if (GET_FIELD (insn, 25, 25))
    417 			fput_fp_reg_r (GET_FIELD (insn, 27, 31), info);
    418 		      else
    419 			fput_fp_reg (GET_FIELD (insn, 27, 31), info);
    420 		      break;
    421 		    case 'a':
    422 		      if (GET_FIELD (insn, 25, 25))
    423 			fput_fp_reg_r (GET_FIELD (insn, 6, 10), info);
    424 		      else
    425 			fput_fp_reg (GET_FIELD (insn, 6, 10), info);
    426 		      break;
    427 
    428 		      /* 'fA' will not generate a space before the regsiter
    429 			 name.  Normally that is fine.  Except that it
    430 			 causes problems with xmpyu which has no FP format
    431 			 completer.  */
    432 		    case 'X':
    433 		      fputs_filtered (" ", info);
    434 		      /* FALLTHRU */
    435 
    436 		    case 'A':
    437 		      if (GET_FIELD (insn, 24, 24))
    438 			fput_fp_reg_r (GET_FIELD (insn, 6, 10), info);
    439 		      else
    440 			fput_fp_reg (GET_FIELD (insn, 6, 10), info);
    441 		      break;
    442 		    case 'b':
    443 		      if (GET_FIELD (insn, 25, 25))
    444 			fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
    445 		      else
    446 			fput_fp_reg (GET_FIELD (insn, 11, 15), info);
    447 		      break;
    448 		    case 'B':
    449 		      if (GET_FIELD (insn, 19, 19))
    450 			fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
    451 		      else
    452 			fput_fp_reg (GET_FIELD (insn, 11, 15), info);
    453 		      break;
    454 		    case 'C':
    455 		      {
    456 			int reg = GET_FIELD (insn, 21, 22);
    457 			reg |= GET_FIELD (insn, 16, 18) << 2;
    458 			if (GET_FIELD (insn, 23, 23) != 0)
    459 			  fput_fp_reg_r (reg, info);
    460 			else
    461 			  fput_fp_reg (reg, info);
    462 			break;
    463 		      }
    464 		    case 'i':
    465 		      {
    466 			int reg = GET_FIELD (insn, 6, 10);
    467 
    468 			reg |= (GET_FIELD (insn, 26, 26) << 4);
    469 			fput_fp_reg (reg, info);
    470 			break;
    471 		      }
    472 		    case 'j':
    473 		      {
    474 			int reg = GET_FIELD (insn, 11, 15);
    475 
    476 			reg |= (GET_FIELD (insn, 26, 26) << 4);
    477 			fput_fp_reg (reg, info);
    478 			break;
    479 		      }
    480 		    case 'k':
    481 		      {
    482 			int reg = GET_FIELD (insn, 27, 31);
    483 
    484 			reg |= (GET_FIELD (insn, 26, 26) << 4);
    485 			fput_fp_reg (reg, info);
    486 			break;
    487 		      }
    488 		    case 'l':
    489 		      {
    490 			int reg = GET_FIELD (insn, 21, 25);
    491 
    492 			reg |= (GET_FIELD (insn, 26, 26) << 4);
    493 			fput_fp_reg (reg, info);
    494 			break;
    495 		      }
    496 		    case 'm':
    497 		      {
    498 			int reg = GET_FIELD (insn, 16, 20);
    499 
    500 			reg |= (GET_FIELD (insn, 26, 26) << 4);
    501 			fput_fp_reg (reg, info);
    502 			break;
    503 		      }
    504 
    505 		      /* 'fe' will not generate a space before the register
    506 			 name.  Normally that is fine.  Except that it
    507 			 causes problems with fstw fe,y(b) which has no FP
    508 			 format completer.  */
    509 		    case 'E':
    510 		      fputs_filtered (" ", info);
    511 		      /* FALLTHRU */
    512 
    513 		    case 'e':
    514 		      if (GET_FIELD (insn, 30, 30))
    515 			fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
    516 		      else
    517 			fput_fp_reg (GET_FIELD (insn, 11, 15), info);
    518 		      break;
    519 		    case 'x':
    520 		      fput_fp_reg (GET_FIELD (insn, 11, 15), info);
    521 		      break;
    522 		    }
    523 		  break;
    524 
    525 		case '5':
    526 		  fput_const (extract_5_load (insn), info);
    527 		  break;
    528 		case 's':
    529 		  {
    530 		    int space = GET_FIELD (insn, 16, 17);
    531 		    /* Zero means implicit addressing, not use of sr0.  */
    532 		    if (space != 0)
    533 		      (*info->fprintf_func) (info->stream, "sr%d", space);
    534 		  }
    535 		  break;
    536 
    537 		case 'S':
    538 		  (*info->fprintf_func) (info->stream, "sr%d",
    539 					 extract_3 (insn));
    540 		  break;
    541 
    542 		  /* Handle completers.  */
    543 		case 'c':
    544 		  switch (*++s)
    545 		    {
    546 		    case 'x':
    547 		      (*info->fprintf_func)
    548 			(info->stream, "%s",
    549 			 index_compl_names[GET_COMPL (insn)]);
    550 		      break;
    551 		    case 'X':
    552 		      (*info->fprintf_func)
    553 			(info->stream, "%s ",
    554 			 index_compl_names[GET_COMPL (insn)]);
    555 		      break;
    556 		    case 'm':
    557 		      (*info->fprintf_func)
    558 			(info->stream, "%s",
    559 			 short_ldst_compl_names[GET_COMPL (insn)]);
    560 		      break;
    561 		    case 'M':
    562 		      (*info->fprintf_func)
    563 			(info->stream, "%s ",
    564 			 short_ldst_compl_names[GET_COMPL (insn)]);
    565 		      break;
    566 		    case 'A':
    567 		      (*info->fprintf_func)
    568 			(info->stream, "%s ",
    569 			 short_bytes_compl_names[GET_COMPL (insn)]);
    570 		      break;
    571 		    case 's':
    572 		      (*info->fprintf_func)
    573 			(info->stream, "%s",
    574 			 short_bytes_compl_names[GET_COMPL (insn)]);
    575 		      break;
    576 		    case 'c':
    577 		    case 'C':
    578 		      switch (GET_FIELD (insn, 20, 21))
    579 			{
    580 			case 1:
    581 			  (*info->fprintf_func) (info->stream, ",bc ");
    582 			  break;
    583 			case 2:
    584 			  (*info->fprintf_func) (info->stream, ",sl ");
    585 			  break;
    586 			default:
    587 			  (*info->fprintf_func) (info->stream, " ");
    588 			}
    589 		      break;
    590 		    case 'd':
    591 		      switch (GET_FIELD (insn, 20, 21))
    592 			{
    593 			case 1:
    594 			  (*info->fprintf_func) (info->stream, ",co ");
    595 			  break;
    596 			default:
    597 			  (*info->fprintf_func) (info->stream, " ");
    598 			}
    599 		      break;
    600 		    case 'o':
    601 		      (*info->fprintf_func) (info->stream, ",o");
    602 		      break;
    603 		    case 'g':
    604 		      (*info->fprintf_func) (info->stream, ",gate");
    605 		      break;
    606 		    case 'p':
    607 		      (*info->fprintf_func) (info->stream, ",l,push");
    608 		      break;
    609 		    case 'P':
    610 		      (*info->fprintf_func) (info->stream, ",pop");
    611 		      break;
    612 		    case 'l':
    613 		    case 'L':
    614 		      (*info->fprintf_func) (info->stream, ",l");
    615 		      break;
    616 		    case 'w':
    617 		      (*info->fprintf_func)
    618 			(info->stream, "%s ",
    619 			 read_write_names[GET_FIELD (insn, 25, 25)]);
    620 		      break;
    621 		    case 'W':
    622 		      (*info->fprintf_func) (info->stream, ",w ");
    623 		      break;
    624 		    case 'r':
    625 		      if (GET_FIELD (insn, 23, 26) == 5)
    626 			(*info->fprintf_func) (info->stream, ",r");
    627 		      break;
    628 		    case 'Z':
    629 		      if (GET_FIELD (insn, 26, 26))
    630 			(*info->fprintf_func) (info->stream, ",m ");
    631 		      else
    632 			(*info->fprintf_func) (info->stream, " ");
    633 		      break;
    634 		    case 'i':
    635 		      if (GET_FIELD (insn, 25, 25))
    636 			(*info->fprintf_func) (info->stream, ",i");
    637 		      break;
    638 		    case 'z':
    639 		      if (!GET_FIELD (insn, 21, 21))
    640 			(*info->fprintf_func) (info->stream, ",z");
    641 		      break;
    642 		    case 'a':
    643 		      (*info->fprintf_func)
    644 			(info->stream, "%s",
    645 			 add_compl_names[GET_FIELD (insn, 20, 21)]);
    646 		      break;
    647 		    case 'Y':
    648 		      (*info->fprintf_func)
    649 			(info->stream, ",dc%s",
    650 			 add_compl_names[GET_FIELD (insn, 20, 21)]);
    651 		      break;
    652 		    case 'y':
    653 		      (*info->fprintf_func)
    654 			(info->stream, ",c%s",
    655 			 add_compl_names[GET_FIELD (insn, 20, 21)]);
    656 		      break;
    657 		    case 'v':
    658 		      if (GET_FIELD (insn, 20, 20))
    659 			(*info->fprintf_func) (info->stream, ",tsv");
    660 		      break;
    661 		    case 't':
    662 		      (*info->fprintf_func) (info->stream, ",tc");
    663 		      if (GET_FIELD (insn, 20, 20))
    664 			(*info->fprintf_func) (info->stream, ",tsv");
    665 		      break;
    666 		    case 'B':
    667 		      (*info->fprintf_func) (info->stream, ",db");
    668 		      if (GET_FIELD (insn, 20, 20))
    669 			(*info->fprintf_func) (info->stream, ",tsv");
    670 		      break;
    671 		    case 'b':
    672 		      (*info->fprintf_func) (info->stream, ",b");
    673 		      if (GET_FIELD (insn, 20, 20))
    674 			(*info->fprintf_func) (info->stream, ",tsv");
    675 		      break;
    676 		    case 'T':
    677 		      if (GET_FIELD (insn, 25, 25))
    678 			(*info->fprintf_func) (info->stream, ",tc");
    679 		      break;
    680 		    case 'S':
    681 		      /* EXTRD/W has a following condition.  */
    682 		      if (*(s + 1) == '?')
    683 			(*info->fprintf_func)
    684 			  (info->stream, "%s",
    685 			   signed_unsigned_names[GET_FIELD (insn, 21, 21)]);
    686 		      else
    687 			(*info->fprintf_func)
    688 			  (info->stream, "%s ",
    689 			   signed_unsigned_names[GET_FIELD (insn, 21, 21)]);
    690 		      break;
    691 		    case 'h':
    692 		      (*info->fprintf_func)
    693 			(info->stream, "%s",
    694 			 mix_half_names[GET_FIELD (insn, 17, 17)]);
    695 		      break;
    696 		    case 'H':
    697 		      (*info->fprintf_func)
    698 			(info->stream, "%s ",
    699 			 saturation_names[GET_FIELD (insn, 24, 25)]);
    700 		      break;
    701 		    case '*':
    702 		      (*info->fprintf_func)
    703 			(info->stream, ",%d%d%d%d ",
    704 			 GET_FIELD (insn, 17, 18), GET_FIELD (insn, 20, 21),
    705 			 GET_FIELD (insn, 22, 23), GET_FIELD (insn, 24, 25));
    706 		      break;
    707 
    708 		    case 'q':
    709 		      {
    710 			int m, a;
    711 
    712 			m = GET_FIELD (insn, 28, 28);
    713 			a = GET_FIELD (insn, 29, 29);
    714 
    715 			if (m && !a)
    716 			  fputs_filtered (",ma ", info);
    717 			else if (m && a)
    718 			  fputs_filtered (",mb ", info);
    719 			else
    720 			  fputs_filtered (" ", info);
    721 			break;
    722 		      }
    723 
    724 		    case 'J':
    725 		      {
    726 			int opc = GET_FIELD (insn, 0, 5);
    727 
    728 			if (opc == 0x16 || opc == 0x1e)
    729 			  {
    730 			    if (GET_FIELD (insn, 29, 29) == 0)
    731 			      fputs_filtered (",ma ", info);
    732 			    else
    733 			      fputs_filtered (",mb ", info);
    734 			  }
    735 			else
    736 			  fputs_filtered (" ", info);
    737 			break;
    738 		      }
    739 
    740 		    case 'e':
    741 		      {
    742 			int opc = GET_FIELD (insn, 0, 5);
    743 
    744 			if (opc == 0x13 || opc == 0x1b)
    745 			  {
    746 			    if (GET_FIELD (insn, 18, 18) == 1)
    747 			      fputs_filtered (",mb ", info);
    748 			    else
    749 			      fputs_filtered (",ma ", info);
    750 			  }
    751 			else if (opc == 0x17 || opc == 0x1f)
    752 			  {
    753 			    if (GET_FIELD (insn, 31, 31) == 1)
    754 			      fputs_filtered (",ma ", info);
    755 			    else
    756 			      fputs_filtered (",mb ", info);
    757 			  }
    758 			else
    759 			  fputs_filtered (" ", info);
    760 
    761 			break;
    762 		      }
    763 		    }
    764 		  break;
    765 
    766 		  /* Handle conditions.  */
    767 		case '?':
    768 		  {
    769 		    s++;
    770 		    switch (*s)
    771 		      {
    772 		      case 'f':
    773 			(*info->fprintf_func)
    774 			  (info->stream, "%s ",
    775 			   float_comp_names[GET_FIELD (insn, 27, 31)]);
    776 			break;
    777 
    778 			/* These four conditions are for the set of instructions
    779 			   which distinguish true/false conditions by opcode
    780 			   rather than by the 'f' bit (sigh): comb, comib,
    781 			   addb, addib.  */
    782 		      case 't':
    783 			fputs_filtered
    784 			  (compare_cond_names[GET_FIELD (insn, 16, 18)], info);
    785 			break;
    786 		      case 'n':
    787 			fputs_filtered
    788 			  (compare_cond_names[GET_FIELD (insn, 16, 18)
    789 					      + GET_FIELD (insn, 4, 4) * 8],
    790 			   info);
    791 			break;
    792 		      case 'N':
    793 			fputs_filtered
    794 			  (compare_cond_64_names[GET_FIELD (insn, 16, 18)
    795 						 + GET_FIELD (insn, 2, 2) * 8],
    796 			   info);
    797 			break;
    798 		      case 'Q':
    799 			fputs_filtered
    800 			  (cmpib_cond_64_names[GET_FIELD (insn, 16, 18)],
    801 			   info);
    802 			break;
    803 		      case '@':
    804 			fputs_filtered
    805 			  (add_cond_names[GET_FIELD (insn, 16, 18)
    806 					  + GET_FIELD (insn, 4, 4) * 8],
    807 			   info);
    808 			break;
    809 		      case 's':
    810 			(*info->fprintf_func)
    811 			  (info->stream, "%s ",
    812 			   compare_cond_names[GET_COND (insn)]);
    813 			break;
    814 		      case 'S':
    815 			(*info->fprintf_func)
    816 			  (info->stream, "%s ",
    817 			   compare_cond_64_names[GET_COND (insn)]);
    818 			break;
    819 		      case 'a':
    820 			(*info->fprintf_func)
    821 			  (info->stream, "%s ",
    822 			   add_cond_names[GET_COND (insn)]);
    823 			break;
    824 		      case 'A':
    825 			(*info->fprintf_func)
    826 			  (info->stream, "%s ",
    827 			   add_cond_64_names[GET_COND (insn)]);
    828 			break;
    829 		      case 'd':
    830 			(*info->fprintf_func)
    831 			  (info->stream, "%s",
    832 			   add_cond_names[GET_FIELD (insn, 16, 18)]);
    833 			break;
    834 
    835 		      case 'W':
    836 			(*info->fprintf_func)
    837 			  (info->stream, "%s",
    838 			   wide_add_cond_names[GET_FIELD (insn, 16, 18) +
    839 					       GET_FIELD (insn, 4, 4) * 8]);
    840 			break;
    841 
    842 		      case 'l':
    843 			(*info->fprintf_func)
    844 			  (info->stream, "%s ",
    845 			   logical_cond_names[GET_COND (insn)]);
    846 			break;
    847 		      case 'L':
    848 			(*info->fprintf_func)
    849 			  (info->stream, "%s ",
    850 			   logical_cond_64_names[GET_COND (insn)]);
    851 			break;
    852 		      case 'u':
    853 			(*info->fprintf_func)
    854 			  (info->stream, "%s ",
    855 			   unit_cond_names[GET_COND (insn)]);
    856 			break;
    857 		      case 'U':
    858 			(*info->fprintf_func)
    859 			  (info->stream, "%s ",
    860 			   unit_cond_64_names[GET_COND (insn)]);
    861 			break;
    862 		      case 'y':
    863 		      case 'x':
    864 		      case 'b':
    865 			(*info->fprintf_func)
    866 			  (info->stream, "%s",
    867 			   shift_cond_names[GET_FIELD (insn, 16, 18)]);
    868 
    869 			/* If the next character in args is 'n', it will handle
    870 			   putting out the space.  */
    871 			if (s[1] != 'n')
    872 			  (*info->fprintf_func) (info->stream, " ");
    873 			break;
    874 		      case 'X':
    875 			(*info->fprintf_func)
    876 			  (info->stream, "%s ",
    877 			   shift_cond_64_names[GET_FIELD (insn, 16, 18)]);
    878 			break;
    879 		      case 'B':
    880 			(*info->fprintf_func)
    881 			  (info->stream, "%s",
    882 			   bb_cond_64_names[GET_FIELD (insn, 16, 16)]);
    883 
    884 			/* If the next character in args is 'n', it will handle
    885 			   putting out the space.  */
    886 			if (s[1] != 'n')
    887 			  (*info->fprintf_func) (info->stream, " ");
    888 			break;
    889 		      }
    890 		    break;
    891 		  }
    892 
    893 		case 'V':
    894 		  fput_const (extract_5_store (insn), info);
    895 		  break;
    896 		case 'r':
    897 		  fput_const (extract_5r_store (insn), info);
    898 		  break;
    899 		case 'R':
    900 		  fput_const (extract_5R_store (insn), info);
    901 		  break;
    902 		case 'U':
    903 		  fput_const (extract_10U_store (insn), info);
    904 		  break;
    905 		case 'B':
    906 		case 'Q':
    907 		  fput_const (extract_5Q_store (insn), info);
    908 		  break;
    909 		case 'i':
    910 		  fput_const (extract_11 (insn), info);
    911 		  break;
    912 		case 'j':
    913 		  fput_const (extract_14 (insn), info);
    914 		  break;
    915 		case 'k':
    916 		  fputs_filtered ("L%", info);
    917 		  fput_const (extract_21 (insn), info);
    918 		  break;
    919 		case '<':
    920 		case 'l':
    921 		  /* 16-bit long disp., PA2.0 wide only.  */
    922 		  fput_const (extract_16 (insn), info);
    923 		  break;
    924 		case 'n':
    925 		  if (insn & 0x2)
    926 		    (*info->fprintf_func) (info->stream, ",n ");
    927 		  else
    928 		    (*info->fprintf_func) (info->stream, " ");
    929 		  break;
    930 		case 'N':
    931 		  if ((insn & 0x20) && s[1])
    932 		    (*info->fprintf_func) (info->stream, ",n ");
    933 		  else if (insn & 0x20)
    934 		    (*info->fprintf_func) (info->stream, ",n");
    935 		  else if (s[1])
    936 		    (*info->fprintf_func) (info->stream, " ");
    937 		  break;
    938 		case 'w':
    939 		  (*info->print_address_func)
    940 		    (memaddr + 8 + extract_12 (insn), info);
    941 		  break;
    942 		case 'W':
    943 		  /* 17 bit PC-relative branch.  */
    944 		  (*info->print_address_func)
    945 		    ((memaddr + 8 + extract_17 (insn)), info);
    946 		  break;
    947 		case 'z':
    948 		  /* 17 bit displacement.  This is an offset from a register
    949 		     so it gets disasssembled as just a number, not any sort
    950 		     of address.  */
    951 		  fput_const (extract_17 (insn), info);
    952 		  break;
    953 
    954 		case 'Z':
    955 		  /* addil %r1 implicit output.  */
    956 		  fputs_filtered ("r1", info);
    957 		  break;
    958 
    959 		case 'Y':
    960 		  /* be,l %sr0,%r31 implicit output.  */
    961 		  fputs_filtered ("sr0,r31", info);
    962 		  break;
    963 
    964 		case '@':
    965 		  (*info->fprintf_func) (info->stream, "0");
    966 		  break;
    967 
    968 		case '.':
    969 		  (*info->fprintf_func) (info->stream, "%d",
    970 					 GET_FIELD (insn, 24, 25));
    971 		  break;
    972 		case '*':
    973 		  (*info->fprintf_func) (info->stream, "%d",
    974 					 GET_FIELD (insn, 22, 25));
    975 		  break;
    976 		case '!':
    977 		  fputs_filtered ("sar", info);
    978 		  break;
    979 		case 'p':
    980 		  (*info->fprintf_func) (info->stream, "%d",
    981 					 31 - GET_FIELD (insn, 22, 26));
    982 		  break;
    983 		case '~':
    984 		  {
    985 		    int num;
    986 		    num = GET_FIELD (insn, 20, 20) << 5;
    987 		    num |= GET_FIELD (insn, 22, 26);
    988 		    (*info->fprintf_func) (info->stream, "%d", 63 - num);
    989 		    break;
    990 		  }
    991 		case 'P':
    992 		  (*info->fprintf_func) (info->stream, "%d",
    993 					 GET_FIELD (insn, 22, 26));
    994 		  break;
    995 		case 'q':
    996 		  {
    997 		    int num;
    998 		    num = GET_FIELD (insn, 20, 20) << 5;
    999 		    num |= GET_FIELD (insn, 22, 26);
   1000 		    (*info->fprintf_func) (info->stream, "%d", num);
   1001 		    break;
   1002 		  }
   1003 		case 'T':
   1004 		  (*info->fprintf_func) (info->stream, "%d",
   1005 					 32 - GET_FIELD (insn, 27, 31));
   1006 		  break;
   1007 		case '%':
   1008 		  {
   1009 		    int num;
   1010 		    num = (GET_FIELD (insn, 23, 23) + 1) * 32;
   1011 		    num -= GET_FIELD (insn, 27, 31);
   1012 		    (*info->fprintf_func) (info->stream, "%d", num);
   1013 		    break;
   1014 		  }
   1015 		case '|':
   1016 		  {
   1017 		    int num;
   1018 		    num = (GET_FIELD (insn, 19, 19) + 1) * 32;
   1019 		    num -= GET_FIELD (insn, 27, 31);
   1020 		    (*info->fprintf_func) (info->stream, "%d", num);
   1021 		    break;
   1022 		  }
   1023 		case '$':
   1024 		  fput_const (GET_FIELD (insn, 20, 28), info);
   1025 		  break;
   1026 		case 'A':
   1027 		  fput_const (GET_FIELD (insn, 6, 18), info);
   1028 		  break;
   1029 		case 'D':
   1030 		  fput_const (GET_FIELD (insn, 6, 31), info);
   1031 		  break;
   1032 		case 'v':
   1033 		  (*info->fprintf_func) (info->stream, ",%d",
   1034 					 GET_FIELD (insn, 23, 25));
   1035 		  break;
   1036 		case 'O':
   1037 		  fput_const ((GET_FIELD (insn, 6,20) << 5 |
   1038 			       GET_FIELD (insn, 27, 31)), info);
   1039 		  break;
   1040 		case 'o':
   1041 		  fput_const (GET_FIELD (insn, 6, 20), info);
   1042 		  break;
   1043 		case '2':
   1044 		  fput_const ((GET_FIELD (insn, 6, 22) << 5 |
   1045 			       GET_FIELD (insn, 27, 31)), info);
   1046 		  break;
   1047 		case '1':
   1048 		  fput_const ((GET_FIELD (insn, 11, 20) << 5 |
   1049 			       GET_FIELD (insn, 27, 31)), info);
   1050 		  break;
   1051 		case '0':
   1052 		  fput_const ((GET_FIELD (insn, 16, 20) << 5 |
   1053 			       GET_FIELD (insn, 27, 31)), info);
   1054 		  break;
   1055 		case 'u':
   1056 		  (*info->fprintf_func) (info->stream, ",%d",
   1057 					 GET_FIELD (insn, 23, 25));
   1058 		  break;
   1059 		case 'F':
   1060 		  /* If no destination completer and not before a completer
   1061 		     for fcmp, need a space here.  */
   1062 		  if (s[1] == 'G' || s[1] == '?')
   1063 		    fputs_filtered
   1064 		      (float_format_names[GET_FIELD (insn, 19, 20)], info);
   1065 		  else
   1066 		    (*info->fprintf_func)
   1067 		      (info->stream, "%s ",
   1068 		       float_format_names[GET_FIELD (insn, 19, 20)]);
   1069 		  break;
   1070 		case 'G':
   1071 		  (*info->fprintf_func)
   1072 		    (info->stream, "%s ",
   1073 		     float_format_names[GET_FIELD (insn, 17, 18)]);
   1074 		  break;
   1075 		case 'H':
   1076 		  if (GET_FIELD (insn, 26, 26) == 1)
   1077 		    (*info->fprintf_func) (info->stream, "%s ",
   1078 					   float_format_names[0]);
   1079 		  else
   1080 		    (*info->fprintf_func) (info->stream, "%s ",
   1081 					   float_format_names[1]);
   1082 		  break;
   1083 		case 'I':
   1084 		  /* If no destination completer and not before a completer
   1085 		     for fcmp, need a space here.  */
   1086 		  if (s[1] == '?')
   1087 		    fputs_filtered
   1088 		      (float_format_names[GET_FIELD (insn, 20, 20)], info);
   1089 		  else
   1090 		    (*info->fprintf_func)
   1091 		      (info->stream, "%s ",
   1092 		       float_format_names[GET_FIELD (insn, 20, 20)]);
   1093 		  break;
   1094 
   1095 		case 'J':
   1096 		  fput_const (extract_14 (insn), info);
   1097 		  break;
   1098 
   1099 		case '#':
   1100 		  {
   1101 		    int sign = GET_FIELD (insn, 31, 31);
   1102 		    int imm10 = GET_FIELD (insn, 18, 27);
   1103 		    int disp;
   1104 
   1105 		    if (sign)
   1106 		      disp = (-1U << 10) | imm10;
   1107 		    else
   1108 		      disp = imm10;
   1109 
   1110 		    disp <<= 3;
   1111 		    fput_const (disp, info);
   1112 		    break;
   1113 		  }
   1114 		case 'K':
   1115 		case 'd':
   1116 		  {
   1117 		    int sign = GET_FIELD (insn, 31, 31);
   1118 		    int imm11 = GET_FIELD (insn, 18, 28);
   1119 		    int disp;
   1120 
   1121 		    if (sign)
   1122 		      disp = (-1U << 11) | imm11;
   1123 		    else
   1124 		      disp = imm11;
   1125 
   1126 		    disp <<= 2;
   1127 		    fput_const (disp, info);
   1128 		    break;
   1129 		  }
   1130 
   1131 		case '>':
   1132 		case 'y':
   1133 		  {
   1134 		    /* 16-bit long disp., PA2.0 wide only.  */
   1135 		    int disp = extract_16 (insn);
   1136 		    disp &= ~3;
   1137 		    fput_const (disp, info);
   1138 		    break;
   1139 		  }
   1140 
   1141 		case '&':
   1142 		  {
   1143 		    /* 16-bit long disp., PA2.0 wide only.  */
   1144 		    int disp = extract_16 (insn);
   1145 		    disp &= ~7;
   1146 		    fput_const (disp, info);
   1147 		    break;
   1148 		  }
   1149 
   1150 		case '_':
   1151 		  break; /* Dealt with by '{' */
   1152 
   1153 		case '{':
   1154 		  {
   1155 		    int sub = GET_FIELD (insn, 14, 16);
   1156 		    int df = GET_FIELD (insn, 17, 18);
   1157 		    int sf = GET_FIELD (insn, 19, 20);
   1158 		    const char * const * source = float_format_names;
   1159 		    const char * const * dest = float_format_names;
   1160 		    char *t = "";
   1161 
   1162 		    if (sub == 4)
   1163 		      {
   1164 			fputs_filtered (",UND ", info);
   1165 			break;
   1166 		      }
   1167 		    if ((sub & 3) == 3)
   1168 		      t = ",t";
   1169 		    if ((sub & 3) == 1)
   1170 		      source = sub & 4 ? fcnv_ufixed_names : fcnv_fixed_names;
   1171 		    if (sub & 2)
   1172 		      dest = sub & 4 ? fcnv_ufixed_names : fcnv_fixed_names;
   1173 
   1174 		    (*info->fprintf_func) (info->stream, "%s%s%s ",
   1175 					   t, source[sf], dest[df]);
   1176 		    break;
   1177 		  }
   1178 
   1179 		case 'm':
   1180 		  {
   1181 		    int y = GET_FIELD (insn, 16, 18);
   1182 
   1183 		    if (y != 1)
   1184 		      fput_const ((y ^ 1) - 1, info);
   1185 		  }
   1186 		  break;
   1187 
   1188 		case 'h':
   1189 		  {
   1190 		    int cbit;
   1191 
   1192 		    cbit = GET_FIELD (insn, 16, 18);
   1193 
   1194 		    if (cbit > 0)
   1195 		      (*info->fprintf_func) (info->stream, ",%d", cbit - 1);
   1196 		    break;
   1197 		  }
   1198 
   1199 		case '=':
   1200 		  {
   1201 		    int cond = GET_FIELD (insn, 27, 31);
   1202 
   1203 		    switch (cond)
   1204 		      {
   1205 		      case  0: fputs_filtered (" ", info); break;
   1206 		      case  1: fputs_filtered ("acc ", info); break;
   1207 		      case  2: fputs_filtered ("rej ", info); break;
   1208 		      case  5: fputs_filtered ("acc8 ", info); break;
   1209 		      case  6: fputs_filtered ("rej8 ", info); break;
   1210 		      case  9: fputs_filtered ("acc6 ", info); break;
   1211 		      case 13: fputs_filtered ("acc4 ", info); break;
   1212 		      case 17: fputs_filtered ("acc2 ", info); break;
   1213 		      default: break;
   1214 		      }
   1215 		    break;
   1216 		  }
   1217 
   1218 		case 'X':
   1219 		  (*info->print_address_func)
   1220 		    (memaddr + 8 + extract_22 (insn), info);
   1221 		  break;
   1222 		case 'L':
   1223 		  fputs_filtered (",rp", info);
   1224 		  break;
   1225 		default:
   1226 		  (*info->fprintf_func) (info->stream, "%c", *s);
   1227 		  break;
   1228 		}
   1229 	    }
   1230 	  return sizeof (insn);
   1231 	}
   1232     }
   1233   (*info->fprintf_func) (info->stream, "#%8x", insn);
   1234   return sizeof (insn);
   1235 }
   1236