hppa-dis.c

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/* Disassembler for the PA-RISC. Somewhat derived from sparc-pinsn.c.
   Copyright (C) 1989-2014 Free Software Foundation, Inc.
 
   Contributed by the Center for Software Science at the
   University of Utah (pa-gdb-bugs@cs.utah.edu).
 
   This file is part of the GNU opcodes library.
 
   This library is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3, or (at your option)
   any later version.
 
   It is distributed in the hope that it will be useful, but WITHOUT
   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
   License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */
 
#include "sysdep.h"
#include "disas-asm.h"
#include "libhppa.h"
#include "opcode/hppa.h"
#include <string.h>
#include <rz_types_base.h>
 
/* Integer register names, indexed by the numbers which appear in the
   opcodes.  */
static const char *const reg_names[] =
{
  "flags", "r1", "rp", "r3", "r4", "r5", "r6", "r7", "r8", "r9",
  "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19",
  "r20", "r21", "r22", "r23", "r24", "r25", "r26", "dp", "ret0", "ret1",
  "sp", "r31"
};
 
/* Floating point register names, indexed by the numbers which appear in the
   opcodes.  */
static const char *const fp_reg_names[] =
{
  "fpsr", "fpe2", "fpe4", "fpe6",
  "fr4", "fr5", "fr6", "fr7", "fr8",
  "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
  "fr16", "fr17", "fr18", "fr19", "fr20", "fr21", "fr22", "fr23",
  "fr24", "fr25", "fr26", "fr27", "fr28", "fr29", "fr30", "fr31"
};
 
typedef unsigned int CORE_ADDR;
 
/* Get at various relevant fields of an instruction word.  */
 
#define MASK_5  0x1f
#define MASK_10 0x3ff
#define MASK_11 0x7ff
#define MASK_14 0x3fff
#define MASK_16 0xffff
#define MASK_21 0x1fffff
 
/* These macros get bit fields using HP's numbering (MSB = 0).  */
 
#define GET_FIELD(X, FROM, TO) \
  ((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1))
 
#define GET_BIT(X, WHICH) \
  GET_FIELD (X, WHICH, WHICH)
 
/* Some of these have been converted to 2-d arrays because they
   consume less storage this way.  If the maintenance becomes a
   problem, convert them back to const 1-d pointer arrays.  */
static const char *const control_reg[] =
{
  "rctr", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7",
  "pidr1", "pidr2", "ccr", "sar", "pidr3", "pidr4",
  "iva", "eiem", "itmr", "pcsq", "pcoq", "iir", "isr",
  "ior", "ipsw", "eirr", "tr0", "tr1", "tr2", "tr3",
  "tr4", "tr5", "tr6", "tr7"
};
 
static const char *const compare_cond_names[] =
{
  "", ",=", ",<", ",<=", ",<<", ",<<=", ",sv", ",od",
  ",tr", ",<>", ",>=", ",>", ",>>=", ",>>", ",nsv", ",ev"
};
static const char *const compare_cond_64_names[] =
{
  ",*", ",*=", ",*<", ",*<=", ",*<<", ",*<<=", ",*sv", ",*od",
  ",*tr", ",*<>", ",*>=", ",*>", ",*>>=", ",*>>", ",*nsv", ",*ev"
};
static const char *const cmpib_cond_64_names[] =
{
  ",*<<", ",*=", ",*<", ",*<=", ",*>>=", ",*<>", ",*>=", ",*>"
};
static const char *const add_cond_names[] =
{
  "", ",=", ",<", ",<=", ",nuv", ",znv", ",sv", ",od",
  ",tr", ",<>", ",>=", ",>", ",uv", ",vnz", ",nsv", ",ev"
};
static const char *const add_cond_64_names[] =
{
  ",*", ",*=", ",*<", ",*<=", ",*nuv", ",*znv", ",*sv", ",*od",
  ",*tr", ",*<>", ",*>=", ",*>", ",*uv", ",*vnz", ",*nsv", ",*ev"
};
static const char *const wide_add_cond_names[] =
{
  "", ",=", ",<", ",<=", ",nuv", ",*=", ",*<", ",*<=",
  ",tr", ",<>", ",>=", ",>", ",uv", ",*<>", ",*>=", ",*>"
};
static const char *const logical_cond_names[] =
{
  "", ",=", ",<", ",<=", 0, 0, 0, ",od",
  ",tr", ",<>", ",>=", ",>", 0, 0, 0, ",ev"};
static const char *const logical_cond_64_names[] =
{
  ",*", ",*=", ",*<", ",*<=", 0, 0, 0, ",*od",
  ",*tr", ",*<>", ",*>=", ",*>", 0, 0, 0, ",*ev"};
static const char *const unit_cond_names[] =
{
  "", ",swz", ",sbz", ",shz", ",sdc", ",swc", ",sbc", ",shc",
  ",tr", ",nwz", ",nbz", ",nhz", ",ndc", ",nwc", ",nbc", ",nhc"
};
static const char *const unit_cond_64_names[] =
{
  ",*", ",*swz", ",*sbz", ",*shz", ",*sdc", ",*swc", ",*sbc", ",*shc",
  ",*tr", ",*nwz", ",*nbz", ",*nhz", ",*ndc", ",*nwc", ",*nbc", ",*nhc"
};
static const char *const shift_cond_names[] =
{
  "", ",=", ",<", ",od", ",tr", ",<>", ",>=", ",ev"
};
static const char *const shift_cond_64_names[] =
{
  ",*", ",*=", ",*<", ",*od", ",*tr", ",*<>", ",*>=", ",*ev"
};
static const char *const bb_cond_64_names[] =
{
  ",*<", ",*>="
};
static const char *const index_compl_names[] = {"", ",m", ",s", ",sm"};
static const char *const short_ldst_compl_names[] = {"", ",ma", "", ",mb"};
static const char *const short_bytes_compl_names[] =
{
  "", ",b,m", ",e", ",e,m"
};
static const char *const float_format_names[] = {",sgl", ",dbl", "", ",quad"};
static const char *const fcnv_fixed_names[] = {",w", ",dw", "", ",qw"};
static const char *const fcnv_ufixed_names[] = {",uw", ",udw", "", ",uqw"};
static const char *const float_comp_names[] =
{
  ",false?", ",false", ",?", ",!<=>", ",=", ",=t", ",?=", ",!<>",
  ",!?>=", ",<", ",?<", ",!>=", ",!?>", ",<=", ",?<=", ",!>",
  ",!?<=", ",>", ",?>", ",!<=", ",!?<", ",>=", ",?>=", ",!<",
  ",!?=", ",<>", ",!=", ",!=t", ",!?", ",<=>", ",true?", ",true"
};
static const char *const signed_unsigned_names[] = {",u", ",s"};
static const char *const mix_half_names[] = {",l", ",r"};
static const char *const saturation_names[] = {",us", ",ss", 0, ""};
static const char *const read_write_names[] = {",r", ",w"};
static const char *const add_compl_names[] = { 0, "", ",l", ",tsv" };
 
/* For a bunch of different instructions form an index into a
   completer name table.  */
#define GET_COMPL(insn) (GET_FIELD (insn, 26, 26) | \
             GET_FIELD (insn, 18, 18) << 1)
 
#define GET_COND(insn) (GET_FIELD ((insn), 16, 18) + \
            (GET_FIELD ((insn), 19, 19) ? 8 : 0))
 
/* Utility function to print registers.  Put these first, so gcc's function
   inlining can do its stuff.  */
 
#define fputs_filtered(STR,F)   (*info->fprintf_func) (info->stream, "%s", STR)
 
static void
fput_reg (unsigned reg, disassemble_info *info)
{
  (*info->fprintf_func) (info->stream, "%s", reg ? reg_names[reg] : "r0");
}
 
static void
fput_fp_reg (unsigned reg, disassemble_info *info)
{
  (*info->fprintf_func) (info->stream, "%s", reg ? fp_reg_names[reg] : "fr0");
}
 
static void
fput_fp_reg_r (unsigned reg, disassemble_info *info)
{
  /* Special case floating point exception registers.  */
  if (reg < 4) {
      (*info->fprintf_func) (info->stream, "fpe%d", reg * 2 + 1);
  } else {
      (*info->fprintf_func) (info->stream, "%sR", fp_reg_names[reg]);
  }
}
 
static void
fput_creg (unsigned reg, disassemble_info *info)
{
  (*info->fprintf_func) (info->stream, "%s", control_reg[reg]);
}
 
/* Print constants with sign.  */
 
static void
fput_const (unsigned num, disassemble_info *info)
{
    if ((int)num < 0) {
        (*info->fprintf_func) (info->stream, "-%x", -(int)num);
    } else {
        (*info->fprintf_func) (info->stream, "%x", num);
    }
}
 
/* Routines to extract various sized constants out of hppa
   instructions.  */
 
/* Extract a 3-bit space register number from a be, ble, mtsp or mfsp.  */
static int
extract_3 (unsigned word)
{
  return GET_FIELD (word, 18, 18) << 2 | GET_FIELD (word, 16, 17);
}
 
static int
extract_5_load (unsigned word)
{
  return low_sign_extend (word >> 16 & MASK_5, 5);
}
 
/* Extract the immediate field from a st{bhw}s instruction.  */
 
static int
extract_5_store (unsigned word)
{
  return low_sign_extend (word & MASK_5, 5);
}
 
/* Extract the immediate field from a break instruction.  */
 
static unsigned
extract_5r_store (unsigned word)
{
  return (word & MASK_5);
}
 
/* Extract the immediate field from a {sr}sm instruction.  */
 
static unsigned
extract_5R_store (unsigned word)
{
  return (word >> 16 & MASK_5);
}
 
/* Extract the 10 bit immediate field from a {sr}sm instruction.  */
 
static unsigned
extract_10U_store (unsigned word)
{
  return (word >> 16 & MASK_10);
}
 
/* Extract the immediate field from a bb instruction.  */
 
static unsigned
extract_5Q_store (unsigned word)
{
  return (word >> 21 & MASK_5);
}
 
/* Extract an 11 bit immediate field.  */
 
static int
extract_11 (unsigned word)
{
  return low_sign_extend (word & MASK_11, 11);
}
 
/* Extract a 14 bit immediate field.  */
 
static int
extract_14 (unsigned word)
{
  return low_sign_extend (word & MASK_14, 14);
}
 
/* Extract a 16 bit immediate field (PA2.0 wide only).  */
 
static int
extract_16 (unsigned word)
{
  int m15, m0, m1;
 
  m0 = GET_BIT (word, 16);
  m1 = GET_BIT (word, 17);
  m15 = GET_BIT (word, 31);
  word = (word >> 1) & 0x1fff;
  word = word | (m15 << 15) | ((m15 ^ m0) << 14) | ((m15 ^ m1) << 13);
  return sign_extend (word, 16);
}
 
/* Extract a 21 bit constant.  */
 
static int
extract_21 (unsigned word)
{
  int val;
 
  word &= MASK_21;
  word <<= 11;
  val = GET_FIELD (word, 20, 20);
  val <<= 11;
  val |= GET_FIELD (word, 9, 19);
  val <<= 2;
  val |= GET_FIELD (word, 5, 6);
  val <<= 5;
  val |= GET_FIELD (word, 0, 4);
  val <<= 2;
  val |= GET_FIELD (word, 7, 8);
  return sign_extend (val, 21) << 11;
}
 
/* Extract a 12 bit constant from branch instructions.  */
 
static int
extract_12 (unsigned word)
{
  return sign_extend (GET_FIELD (word, 19, 28)
              | GET_FIELD (word, 29, 29) << 10
              | (word & 0x1) << 11, 12) << 2;
}
 
/* Extract a 17 bit constant from branch instructions, returning the
   19 bit signed value.  */
 
static int
extract_17 (unsigned word)
{
  return sign_extend (GET_FIELD (word, 19, 28)
              | GET_FIELD (word, 29, 29) << 10
              | GET_FIELD (word, 11, 15) << 11
              | (word & 0x1) << 16, 17) << 2;
}
 
static int
extract_22 (unsigned word)
{
  return sign_extend (GET_FIELD (word, 19, 28)
              | GET_FIELD (word, 29, 29) << 10
              | GET_FIELD (word, 11, 15) << 11
              | GET_FIELD (word, 6, 10) << 16
              | (word & 0x1) << 21, 22) << 2;
}
 
/* Print one instruction.  */
 
int
print_insn_hppa (bfd_vma memaddr, disassemble_info *info)
{
  bfd_byte buffer[4];
  unsigned int insn, i;
 
  {
    int status =
      (*info->read_memory_func) (memaddr, buffer, sizeof (buffer), info);
    if (status != 0)
      {
    (*info->memory_error_func) (status, memaddr, info);
    return -1;
      }
  }
 
  insn = bfd_getb32 (buffer);
 
  for (i = 0; i < NUMOPCODES; ++i)
    {
      const struct pa_opcode *opcode = &pa_opcodes[i];
 
      if ((insn & opcode->mask) == opcode->match)
    {
      const char *s;
#ifndef BFD64
      if (opcode->arch == pa20w)
        continue;
#endif
      (*info->fprintf_func) (info->stream, "%s", opcode->name);
 
      if (!strchr ("cfCY?-+nHNZFIuv{", opcode->args[0])) {
          (*info->fprintf_func) (info->stream, " ");
      }
      for (s = opcode->args; *s != '\0'; ++s)
        {
          switch (*s)
        {
        case 'x':
          fput_reg (GET_FIELD (insn, 11, 15), info);
          break;
        case 'a':
        case 'b':
          fput_reg (GET_FIELD (insn, 6, 10), info);
          break;
        case '^':
          fput_creg (GET_FIELD (insn, 6, 10), info);
          break;
        case 't':
          fput_reg (GET_FIELD (insn, 27, 31), info);
          break;
 
          /* Handle floating point registers.  */
        case 'f':
          switch (*++s)
            {
            case 't':
              fput_fp_reg (GET_FIELD (insn, 27, 31), info);
              break;
            case 'T':
                if (GET_FIELD (insn, 25, 25)) {
                    fput_fp_reg_r (GET_FIELD (insn, 27, 31), info);
                } else {
                    fput_fp_reg (GET_FIELD (insn, 27, 31), info);
                }
                break;
            case 'a':
                if (GET_FIELD (insn, 25, 25)) {
                    fput_fp_reg_r (GET_FIELD (insn, 6, 10), info);
                } else {
                    fput_fp_reg (GET_FIELD (insn, 6, 10), info);
                }
                break;
 
                /* 'fA' will not generate a space before the register
             name.  Normally that is fine.  Except that it
             causes problems with xmpyu which has no FP format
             completer.  */
            case 'X':
              fputs_filtered (" ", info);
              /* FALLTHRU */
 
            case 'A':
                if (GET_FIELD (insn, 24, 24)) {
                    fput_fp_reg_r (GET_FIELD (insn, 6, 10), info);
                } else {
                    fput_fp_reg (GET_FIELD (insn, 6, 10), info);
                }
                break;
            case 'b':
                if (GET_FIELD (insn, 25, 25)) {
                    fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
                } else {
                    fput_fp_reg (GET_FIELD (insn, 11, 15), info);
                }
                break;
            case 'B':
                if (GET_FIELD (insn, 19, 19)) {
                    fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
                } else {
                    fput_fp_reg (GET_FIELD (insn, 11, 15), info);
                }
                break;
            case 'C':
              {
            int reg = GET_FIELD (insn, 21, 22);
            reg |= GET_FIELD (insn, 16, 18) << 2;
            if (GET_FIELD (insn, 23, 23) != 0) {
                fput_fp_reg_r (reg, info);
            } else {
                fput_fp_reg (reg, info);
            }
            break;
              }
            case 'i':
              {
            int reg = GET_FIELD (insn, 6, 10);
 
            reg |= (GET_FIELD (insn, 26, 26) << 4);
            fput_fp_reg (reg, info);
            break;
              }
            case 'j':
              {
            int reg = GET_FIELD (insn, 11, 15);
 
            reg |= (GET_FIELD (insn, 26, 26) << 4);
            fput_fp_reg (reg, info);
            break;
              }
            case 'k':
              {
            int reg = GET_FIELD (insn, 27, 31);
 
            reg |= (GET_FIELD (insn, 26, 26) << 4);
            fput_fp_reg (reg, info);
            break;
              }
            case 'l':
              {
            int reg = GET_FIELD (insn, 21, 25);
 
            reg |= (GET_FIELD (insn, 26, 26) << 4);
            fput_fp_reg (reg, info);
            break;
              }
            case 'm':
              {
            int reg = GET_FIELD (insn, 16, 20);
 
            reg |= (GET_FIELD (insn, 26, 26) << 4);
            fput_fp_reg (reg, info);
            break;
              }
 
              /* 'fe' will not generate a space before the register
             name.  Normally that is fine.  Except that it
             causes problems with fstw fe,y(b) which has no FP
             format completer.  */
            case 'E':
              fputs_filtered (" ", info);
              /* FALLTHRU */
 
            case 'e':
                if (GET_FIELD (insn, 30, 30)) {
                    fput_fp_reg_r (GET_FIELD (insn, 11, 15), info);
                } else {
                    fput_fp_reg (GET_FIELD (insn, 11, 15), info);
                }
                break;
            case 'x':
              fput_fp_reg (GET_FIELD (insn, 11, 15), info);
              break;
            }
          break;
 
        case '5':
          fput_const (extract_5_load (insn), info);
          break;
        case 's':
          {
            int space = GET_FIELD (insn, 16, 17);
            /* Zero means implicit addressing, not use of sr0.  */
            if (space != 0) {
                (*info->fprintf_func) (info->stream, "sr%d", space);
            }
          }
          break;
 
        case 'S':
          (*info->fprintf_func) (info->stream, "sr%d",
                     extract_3 (insn));
          break;
 
          /* Handle completers.  */
        case 'c':
          switch (*++s)
            {
            case 'x':
              (*info->fprintf_func)
            (info->stream, "%s",
             index_compl_names[GET_COMPL (insn)]);
              break;
            case 'X':
              (*info->fprintf_func)
            (info->stream, "%s ",
             index_compl_names[GET_COMPL (insn)]);
              break;
            case 'm':
              (*info->fprintf_func)
            (info->stream, "%s",
             short_ldst_compl_names[GET_COMPL (insn)]);
              break;
            case 'M':
              (*info->fprintf_func)
            (info->stream, "%s ",
             short_ldst_compl_names[GET_COMPL (insn)]);
              break;
            case 'A':
              (*info->fprintf_func)
            (info->stream, "%s ",
             short_bytes_compl_names[GET_COMPL (insn)]);
              break;
            case 's':
              (*info->fprintf_func)
            (info->stream, "%s",
             short_bytes_compl_names[GET_COMPL (insn)]);
              break;
            case 'c':
            case 'C':
              switch (GET_FIELD (insn, 20, 21))
            {
            case 1:
              (*info->fprintf_func) (info->stream, ",bc ");
              break;
            case 2:
              (*info->fprintf_func) (info->stream, ",sl ");
              break;
            default:
              (*info->fprintf_func) (info->stream, " ");
            }
              break;
            case 'd':
              switch (GET_FIELD (insn, 20, 21))
            {
            case 1:
              (*info->fprintf_func) (info->stream, ",co ");
              break;
            default:
              (*info->fprintf_func) (info->stream, " ");
            }
              break;
            case 'o':
              (*info->fprintf_func) (info->stream, ",o");
              break;
            case 'g':
              (*info->fprintf_func) (info->stream, ",gate");
              break;
            case 'p':
              (*info->fprintf_func) (info->stream, ",l,push");
              break;
            case 'P':
              (*info->fprintf_func) (info->stream, ",pop");
              break;
            case 'l':
            case 'L':
              (*info->fprintf_func) (info->stream, ",l");
              break;
            case 'w':
              (*info->fprintf_func)
            (info->stream, "%s ",
             read_write_names[GET_FIELD (insn, 25, 25)]);
              break;
            case 'W':
              (*info->fprintf_func) (info->stream, ",w ");
              break;
            case 'r':
                if (GET_FIELD (insn, 23, 26) == 5) {
                    (*info->fprintf_func) (info->stream, ",r");
                }
                break;
            case 'Z':
                if (GET_FIELD (insn, 26, 26)) {
                    (*info->fprintf_func) (info->stream, ",m ");
                } else {
                    (*info->fprintf_func) (info->stream, " ");
                }
                break;
            case 'i':
                if (GET_FIELD (insn, 25, 25)) {
                    (*info->fprintf_func) (info->stream, ",i");
                }
                break;
            case 'z':
                if (!GET_FIELD (insn, 21, 21)) {
                    (*info->fprintf_func) (info->stream, ",z");
                }
                break;
            case 'a':
              (*info->fprintf_func)
            (info->stream, "%s",
             add_compl_names[GET_FIELD (insn, 20, 21)]);
              break;
            case 'Y':
              (*info->fprintf_func)
            (info->stream, ",dc%s",
             add_compl_names[GET_FIELD (insn, 20, 21)]);
              break;
            case 'y':
              (*info->fprintf_func)
            (info->stream, ",c%s",
             add_compl_names[GET_FIELD (insn, 20, 21)]);
              break;
            case 'v':
                if (GET_FIELD (insn, 20, 20)) {
                    (*info->fprintf_func) (info->stream, ",tsv");
                }
                break;
            case 't':
              (*info->fprintf_func) (info->stream, ",tc");
              if (GET_FIELD (insn, 20, 20)) {
                  (*info->fprintf_func) (info->stream, ",tsv");
              }
              break;
            case 'B':
              (*info->fprintf_func) (info->stream, ",db");
              if (GET_FIELD (insn, 20, 20)) {
                  (*info->fprintf_func) (info->stream, ",tsv");
              }
              break;
            case 'b':
              (*info->fprintf_func) (info->stream, ",b");
              if (GET_FIELD (insn, 20, 20)) {
                  (*info->fprintf_func) (info->stream, ",tsv");
              }
              break;
            case 'T':
                if (GET_FIELD (insn, 25, 25)) {
                    (*info->fprintf_func) (info->stream, ",tc");
                }
                break;
            case 'S':
              /* EXTRD/W has a following condition.  */
              if (*(s + 1) == '?') {
                  (*info->fprintf_func) (info->stream, "%s",
                      signed_unsigned_names[GET_FIELD (insn, 21, 21)]);
              } else {
                  (*info->fprintf_func) (info->stream, "%s ",
                      signed_unsigned_names[GET_FIELD (insn, 21, 21)]);
              }
              break;
            case 'h':
              (*info->fprintf_func)
            (info->stream, "%s",
             mix_half_names[GET_FIELD (insn, 17, 17)]);
              break;
            case 'H':
              (*info->fprintf_func)
            (info->stream, "%s ",
             saturation_names[GET_FIELD (insn, 24, 25)]);
              break;
            case '*':
              (*info->fprintf_func)
            (info->stream, ",%d%d%d%d ",
             GET_FIELD (insn, 17, 18), GET_FIELD (insn, 20, 21),
             GET_FIELD (insn, 22, 23), GET_FIELD (insn, 24, 25));
              break;
 
            case 'q':
              {
            int m, a;
 
            m = GET_FIELD (insn, 28, 28);
            a = GET_FIELD (insn, 29, 29);
 
            if (m && !a) {
                fputs_filtered (",ma ", info);
            } else if (m && a) {
                fputs_filtered (",mb ", info);
            } else {
                fputs_filtered (" ", info);
            }
            break;
              }
 
            case 'J':
              {
            int opc = GET_FIELD (insn, 0, 5);
 
            if (opc == 0x16 || opc == 0x1e)
              {
                if (GET_FIELD (insn, 29, 29) == 0) {
                    fputs_filtered (",ma ", info);
                } else {
                    fputs_filtered (",mb ", info);
                }
            } else {
                fputs_filtered (" ", info);
            }
            break;
              }
 
            case 'e':
              {
            int opc = GET_FIELD (insn, 0, 5);
 
            if (opc == 0x13 || opc == 0x1b)
              {
                if (GET_FIELD (insn, 18, 18) == 1) {
                    fputs_filtered (",mb ", info);
                } else {
                    fputs_filtered (",ma ", info);
                }
              }
            else if (opc == 0x17 || opc == 0x1f)
              {
                  if (GET_FIELD (insn, 31, 31) == 1) {
                      fputs_filtered (",ma ", info);
                  } else {
                      fputs_filtered (",mb ", info);
                  }
              } else {
                  fputs_filtered (" ", info);
              }
 
              break;
              }
            }
          break;
 
          /* Handle conditions.  */
        case '?':
          {
            s++;
            switch (*s)
              {
              case 'f':
            (*info->fprintf_func)
              (info->stream, "%s ",
               float_comp_names[GET_FIELD (insn, 27, 31)]);
            break;
 
            /* These four conditions are for the set of instructions
               which distinguish true/false conditions by opcode
               rather than by the 'f' bit (sigh): comb, comib,
               addb, addib.  */
              case 't':
            fputs_filtered
              (compare_cond_names[GET_FIELD (insn, 16, 18)], info);
            break;
              case 'n':
            fputs_filtered
              (compare_cond_names[GET_FIELD (insn, 16, 18)
                          + GET_FIELD (insn, 4, 4) * 8],
               info);
            break;
              case 'N':
            fputs_filtered
              (compare_cond_64_names[GET_FIELD (insn, 16, 18)
                         + GET_FIELD (insn, 2, 2) * 8],
               info);
            break;
              case 'Q':
            fputs_filtered
              (cmpib_cond_64_names[GET_FIELD (insn, 16, 18)],
               info);
            break;
              case '@':
            fputs_filtered
              (add_cond_names[GET_FIELD (insn, 16, 18)
                      + GET_FIELD (insn, 4, 4) * 8],
               info);
            break;
              case 's':
            (*info->fprintf_func)
              (info->stream, "%s ",
               compare_cond_names[GET_COND (insn)]);
            break;
              case 'S':
            (*info->fprintf_func)
              (info->stream, "%s ",
               compare_cond_64_names[GET_COND (insn)]);
            break;
              case 'a':
            (*info->fprintf_func)
              (info->stream, "%s ",
               add_cond_names[GET_COND (insn)]);
            break;
              case 'A':
            (*info->fprintf_func)
              (info->stream, "%s ",
               add_cond_64_names[GET_COND (insn)]);
            break;
              case 'd':
            (*info->fprintf_func)
              (info->stream, "%s",
               add_cond_names[GET_FIELD (insn, 16, 18)]);
            break;
 
              case 'W':
            (*info->fprintf_func)
              (info->stream, "%s",
               wide_add_cond_names[GET_FIELD (insn, 16, 18) +
                           GET_FIELD (insn, 4, 4) * 8]);
            break;
 
              case 'l':
            (*info->fprintf_func)
              (info->stream, "%s ",
               logical_cond_names[GET_COND (insn)]);
            break;
              case 'L':
            (*info->fprintf_func)
              (info->stream, "%s ",
               logical_cond_64_names[GET_COND (insn)]);
            break;
              case 'u':
            (*info->fprintf_func)
              (info->stream, "%s ",
               unit_cond_names[GET_COND (insn)]);
            break;
              case 'U':
            (*info->fprintf_func)
              (info->stream, "%s ",
               unit_cond_64_names[GET_COND (insn)]);
            break;
              case 'y':
              case 'x':
              case 'b':
            (*info->fprintf_func)
              (info->stream, "%s",
               shift_cond_names[GET_FIELD (insn, 16, 18)]);
 
            /* If the next character in args is 'n', it will handle
               putting out the space.  */
            if (s[1] != 'n') {
                (*info->fprintf_func) (info->stream, " ");
            }
            break;
              case 'X':
            (*info->fprintf_func)
              (info->stream, "%s ",
               shift_cond_64_names[GET_FIELD (insn, 16, 18)]);
            break;
              case 'B':
            (*info->fprintf_func)
              (info->stream, "%s",
               bb_cond_64_names[GET_FIELD (insn, 16, 16)]);
 
            /* If the next character in args is 'n', it will handle
               putting out the space.  */
            if (s[1] != 'n') {
                (*info->fprintf_func) (info->stream, " ");
            }
            break;
              }
            break;
          }
 
        case 'V':
          fput_const (extract_5_store (insn), info);
          break;
        case 'r':
          fput_const (extract_5r_store (insn), info);
          break;
        case 'R':
          fput_const (extract_5R_store (insn), info);
          break;
        case 'U':
          fput_const (extract_10U_store (insn), info);
          break;
        case 'B':
        case 'Q':
          fput_const (extract_5Q_store (insn), info);
          break;
        case 'i':
          fput_const (extract_11 (insn), info);
          break;
        case 'j':
          fput_const (extract_14 (insn), info);
          break;
        case 'k':
          fputs_filtered ("L%", info);
          fput_const (extract_21 (insn), info);
          break;
        case '<':
        case 'l':
          /* 16-bit long disp., PA2.0 wide only.  */
          fput_const (extract_16 (insn), info);
          break;
        case 'n':
            if (insn & 0x2) {
                (*info->fprintf_func) (info->stream, ",n ");
            } else {
                (*info->fprintf_func) (info->stream, " ");
            }
            break;
        case 'N':
            if ((insn & 0x20) && s[1]) {
                (*info->fprintf_func) (info->stream, ",n ");
            } else if (insn & 0x20) {
                (*info->fprintf_func) (info->stream, ",n");
            } else if (s[1]) {
                (*info->fprintf_func) (info->stream, " ");
            }
            break;
        case 'w':
          (*info->print_address_func)
            (memaddr + 8 + extract_12 (insn), info);
          break;
        case 'W':
          /* 17 bit PC-relative branch.  */
          (*info->print_address_func)
            ((memaddr + 8 + extract_17 (insn)), info);
          break;
        case 'z':
          /* 17 bit displacement.  This is an offset from a register
             so it gets disasssembled as just a number, not any sort
             of address.  */
          fput_const (extract_17 (insn), info);
          break;
 
        case 'Z':
          /* addil %r1 implicit output.  */
          fputs_filtered ("r1", info);
          break;
 
        case 'Y':
          /* be,l %sr0,%r31 implicit output.  */
          fputs_filtered ("sr0,r31", info);
          break;
 
        case '@':
          (*info->fprintf_func) (info->stream, "0");
          break;
 
        case '.':
          (*info->fprintf_func) (info->stream, "%d",
                     GET_FIELD (insn, 24, 25));
          break;
        case '*':
          (*info->fprintf_func) (info->stream, "%d",
                     GET_FIELD (insn, 22, 25));
          break;
        case '!':
          fputs_filtered ("sar", info);
          break;
        case 'p':
          (*info->fprintf_func) (info->stream, "%d",
                     31 - GET_FIELD (insn, 22, 26));
          break;
        case '~':
          {
            int num;
            num = GET_FIELD (insn, 20, 20) << 5;
            num |= GET_FIELD (insn, 22, 26);
            (*info->fprintf_func) (info->stream, "%d", 63 - num);
            break;
          }
        case 'P':
          (*info->fprintf_func) (info->stream, "%d",
                     GET_FIELD (insn, 22, 26));
          break;
        case 'q':
          {
            int num;
            num = GET_FIELD (insn, 20, 20) << 5;
            num |= GET_FIELD (insn, 22, 26);
            (*info->fprintf_func) (info->stream, "%d", num);
            break;
          }
        case 'T':
          (*info->fprintf_func) (info->stream, "%d",
                     32 - GET_FIELD (insn, 27, 31));
          break;
        case '%':
          {
            int num;
            num = (GET_FIELD (insn, 23, 23) + 1) * 32;
            num -= GET_FIELD (insn, 27, 31);
            (*info->fprintf_func) (info->stream, "%d", num);
            break;
          }
        case '|':
          {
            int num;
            num = (GET_FIELD (insn, 19, 19) + 1) * 32;
            num -= GET_FIELD (insn, 27, 31);
            (*info->fprintf_func) (info->stream, "%d", num);
            break;
          }
        case '$':
          fput_const (GET_FIELD (insn, 20, 28), info);
          break;
        case 'A':
          fput_const (GET_FIELD (insn, 6, 18), info);
          break;
        case 'D':
          fput_const (GET_FIELD (insn, 6, 31), info);
          break;
        case 'v':
          (*info->fprintf_func) (info->stream, ",%d",
                     GET_FIELD (insn, 23, 25));
          break;
        case 'O':
          fput_const ((GET_FIELD (insn, 6,20) << 5 |
                   GET_FIELD (insn, 27, 31)), info);
          break;
        case 'o':
          fput_const (GET_FIELD (insn, 6, 20), info);
          break;
        case '2':
          fput_const ((GET_FIELD (insn, 6, 22) << 5 |
                   GET_FIELD (insn, 27, 31)), info);
          break;
        case '1':
          fput_const ((GET_FIELD (insn, 11, 20) << 5 |
                   GET_FIELD (insn, 27, 31)), info);
          break;
        case '0':
          fput_const ((GET_FIELD (insn, 16, 20) << 5 |
                   GET_FIELD (insn, 27, 31)), info);
          break;
        case 'u':
          (*info->fprintf_func) (info->stream, ",%d",
                     GET_FIELD (insn, 23, 25));
          break;
        case 'F':
          /* If no destination completer and not before a completer
             for fcmp, need a space here.  */
          if (s[1] == 'G' || s[1] == '?') {
              fputs_filtered (float_format_names[GET_FIELD (insn, 19, 20)], info);
          } else {
              (*info->fprintf_func) (info->stream, "%s ",
                  float_format_names[GET_FIELD (insn, 19, 20)]);
          }
          break;
        case 'G':
          (*info->fprintf_func)
            (info->stream, "%s ",
             float_format_names[GET_FIELD (insn, 17, 18)]);
          break;
        case 'H':
            if (GET_FIELD (insn, 26, 26) == 1) {
                (*info->fprintf_func) (info->stream, "%s ",
                    float_format_names[0]);
            } else {
                (*info->fprintf_func) (info->stream, "%s ",
                    float_format_names[1]);
            }
            break;
        case 'I':
          /* If no destination completer and not before a completer
             for fcmp, need a space here.  */
          if (s[1] == '?') {
              fputs_filtered (float_format_names[GET_FIELD (insn, 20, 20)], info);
          } else {
              (*info->fprintf_func) (info->stream, "%s ",
                  float_format_names[GET_FIELD (insn, 20, 20)]);
          }
          break;
 
        case 'J':
          fput_const (extract_14 (insn), info);
          break;
 
        case '#':
          {
            int sign = GET_FIELD (insn, 31, 31);
            int imm10 = GET_FIELD (insn, 18, 27);
            int disp;
 
            if (sign) {
                disp = (UT64_MAX << 10) | imm10;
            } else {
                disp = imm10;
            }
 
            disp <<= 3;
            fput_const (disp, info);
            break;
          }
        case 'K':
        case 'd':
          {
            int sign = GET_FIELD (insn, 31, 31);
            int imm11 = GET_FIELD (insn, 18, 28);
            int disp;
 
            if (sign) {
                disp = (UT64_MAX << 11) | imm11;
            } else {
                disp = imm11;
            }
 
            disp <<= 2;
            fput_const (disp, info);
            break;
          }
 
        case '>':
        case 'y':
          {
            /* 16-bit long disp., PA2.0 wide only.  */
            int disp = extract_16 (insn);
            disp &= ~3;
            fput_const (disp, info);
            break;
          }
 
        case '&':
          {
            /* 16-bit long disp., PA2.0 wide only.  */
            int disp = extract_16 (insn);
            disp &= ~7;
            fput_const (disp, info);
            break;
          }
 
        case '_':
          break; /* Dealt with by '{' */
 
        case '{':
          {
            int sub = GET_FIELD (insn, 14, 16);
            int df = GET_FIELD (insn, 17, 18);
            int sf = GET_FIELD (insn, 19, 20);
            const char * const * source = float_format_names;
            const char * const * dest = float_format_names;
            char *t = "";
 
            if (sub == 4)
              {
            fputs_filtered (",UND ", info);
            break;
              }
              if ((sub & 3) == 3) {
                  t = ",t";
              }
              if ((sub & 3) == 1) {
                  source = sub & 4 ? fcnv_ufixed_names : fcnv_fixed_names;
              }
              if (sub & 2) {
                  dest = sub & 4 ? fcnv_ufixed_names : fcnv_fixed_names;
              }
 
              (*info->fprintf_func) (info->stream, "%s%s%s ",
                  t, source[sf], dest[df]);
              break;
          }
 
        case 'm':
          {
            int y = GET_FIELD (insn, 16, 18);
 
            if (y != 1) {
                fput_const ((y ^ 1) - 1, info);
            }
          }
          break;
 
        case 'h':
          {
            int cbit;
 
            cbit = GET_FIELD (insn, 16, 18);
 
            if (cbit > 0) {
                (*info->fprintf_func) (info->stream, ",%d", cbit - 1);
            }
            break;
          }
 
        case '=':
          {
            int cond = GET_FIELD (insn, 27, 31);
 
            switch (cond)
              {
              case  0: fputs_filtered (" ", info); break;
              case  1: fputs_filtered ("acc ", info); break;
              case  2: fputs_filtered ("rej ", info); break;
              case  5: fputs_filtered ("acc8 ", info); break;
              case  6: fputs_filtered ("rej8 ", info); break;
              case  9: fputs_filtered ("acc6 ", info); break;
              case 13: fputs_filtered ("acc4 ", info); break;
              case 17: fputs_filtered ("acc2 ", info); break;
              default: break;
              }
            break;
          }
 
        case 'X':
          (*info->print_address_func)
            (memaddr + 8 + extract_22 (insn), info);
          break;
        case 'L':
          fputs_filtered (",rp", info);
          break;
        default:
          (*info->fprintf_func) (info->stream, "%c", *s);
          break;
        }
        }
      return sizeof (insn);
    }
    }
  (*info->fprintf_func) (info->stream, "#%8x", insn);
  return sizeof (insn);
}