/src/binutils-gdb/opcodes/bfin-dis.c

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/* Disassemble ADI Blackfin Instructions.
   Copyright (C) 2005-2023 Free Software Foundation, Inc.

   This file is part of libopcodes.

   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 <stdio.h>

#include "opcode/bfin.h"

#ifndef PRINTF
#define PRINTF printf
#endif

#ifndef EXIT
#define EXIT exit
#endif

typedef long TIword;

#define SIGNBIT(bits)       (1ul << ((bits) - 1))
#define MASKBITS(val, bits) ((val) & ((SIGNBIT (bits) << 1) - 1))
#define SIGNEXTEND(v, n)    ((MASKBITS (v, n) ^ SIGNBIT (n)) - SIGNBIT (n))

#include "disassemble.h"

typedef unsigned int bu32;

struct private
{
  TIword iw0;
  bool comment, parallel;
};

typedef enum
{
  c_0, c_1, c_4, c_2, c_uimm2, c_uimm3, c_imm3, c_pcrel4,
  c_imm4, c_uimm4s4, c_uimm4s4d, c_uimm4, c_uimm4s2, c_negimm5s4, c_imm5, c_imm5d, c_uimm5, c_imm6,
  c_imm7, c_imm7d, c_imm8, c_uimm8, c_pcrel8, c_uimm8s4, c_pcrel8s4, c_lppcrel10, c_pcrel10,
  c_pcrel12, c_imm16s4, c_luimm16, c_imm16, c_imm16d, c_huimm16, c_rimm16, c_imm16s2, c_uimm16s4,
  c_uimm16s4d, c_uimm16, c_pcrel24, c_uimm32, c_imm32, c_huimm32, c_huimm32e,
} const_forms_t;

static const struct
{
  const char *name;
  const int nbits;
  const char reloc;
  const char issigned;
  const char pcrel;
  const char scale;
  const char offset;
  const char negative;
  const char positive;
  const char decimal;
  const char leading;
  const char exact;
} constant_formats[] =
{
  { "0",          0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0},
  { "1",          0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0},
  { "4",          0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0},
  { "2",          0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0},
  { "uimm2",      2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  { "uimm3",      3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  { "imm3",       3, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0},
  { "pcrel4",     4, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0},
  { "imm4",       4, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0},
  { "uimm4s4",    4, 0, 0, 0, 2, 0, 0, 1, 0, 0, 0},
  { "uimm4s4d",   4, 0, 0, 0, 2, 0, 0, 1, 1, 0, 0},
  { "uimm4",      4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  { "uimm4s2",    4, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0},
  { "negimm5s4",  5, 0, 1, 0, 2, 0, 1, 0, 0, 0, 0},
  { "imm5",       5, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0},
  { "imm5d",      5, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0},
  { "uimm5",      5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  { "imm6",       6, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0},
  { "imm7",       7, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0},
  { "imm7d",      7, 0, 1, 0, 0, 0, 0, 0, 1, 3, 0},
  { "imm8",       8, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0},
  { "uimm8",      8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  { "pcrel8",     8, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0},
  { "uimm8s4",    8, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0},
  { "pcrel8s4",   8, 1, 1, 1, 2, 0, 0, 0, 0, 0, 0},
  { "lppcrel10", 10, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0},
  { "pcrel10",   10, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0},
  { "pcrel12",   12, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0},
  { "imm16s4",   16, 0, 1, 0, 2, 0, 0, 0, 0, 0, 0},
  { "luimm16",   16, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  { "imm16",     16, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0},
  { "imm16d",    16, 0, 1, 0, 0, 0, 0, 0, 1, 3, 0},
  { "huimm16",   16, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  { "rimm16",    16, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0},
  { "imm16s2",   16, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0},
  { "uimm16s4",  16, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0},
  { "uimm16s4d", 16, 0, 0, 0, 2, 0, 0, 0, 1, 0, 0},
  { "uimm16",    16, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  { "pcrel24",   24, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0},
  { "uimm32",    32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  { "imm32",     32, 0, 1, 0, 0, 0, 0, 0, 1, 3, 0},
  { "huimm32",   32, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  { "huimm32e",  32, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1},
};

static const char *
fmtconst (const_forms_t cf, TIword x, bfd_vma pc, disassemble_info *outf)
{
  static char buf[60];

  if (constant_formats[cf].reloc)
    {
      bfd_vma ea;

      if (constant_formats[cf].pcrel)
  x = SIGNEXTEND (x, constant_formats[cf].nbits);
      ea = x + constant_formats[cf].offset;
      ea = ea << constant_formats[cf].scale;
      if (constant_formats[cf].pcrel)
  ea += pc;

      /* truncate to 32-bits for proper symbol lookup/matching */
      ea = (bu32)ea;

      if (outf->symbol_at_address_func (ea, outf) || !constant_formats[cf].exact)
  {
    outf->print_address_func (ea, outf);
    return "";
  }
      else
  {
    sprintf (buf, "%lx", (unsigned long) x);
    return buf;
  }
    }

  /* Negative constants have an implied sign bit.  */
  if (constant_formats[cf].negative)
    {
      int nb = constant_formats[cf].nbits + 1;

      x = x | (1ul << constant_formats[cf].nbits);
      x = SIGNEXTEND (x, nb);
    }
  else if (constant_formats[cf].issigned)
    x = SIGNEXTEND (x, constant_formats[cf].nbits);

  x += constant_formats[cf].offset;
  x = (unsigned long) x << constant_formats[cf].scale;

  if (constant_formats[cf].decimal)
    sprintf (buf, "%*li", constant_formats[cf].leading, x);
  else
    {
      if (constant_formats[cf].issigned && x < 0)
  sprintf (buf, "-0x%lx", (unsigned long)(- x));
      else
  sprintf (buf, "0x%lx", (unsigned long) x);
    }

  return buf;
}

static bu32
fmtconst_val (const_forms_t cf, unsigned int x, unsigned int pc)
{
  if (0 && constant_formats[cf].reloc)
    {
      bu32 ea;

      if (constant_formats[cf].pcrel)
  x = SIGNEXTEND (x, constant_formats[cf].nbits);
      ea = x + constant_formats[cf].offset;
      ea = ea << constant_formats[cf].scale;
      if (constant_formats[cf].pcrel)
  ea += pc;

      return ea;
    }

  /* Negative constants have an implied sign bit.  */
  if (constant_formats[cf].negative)
    {
      int nb = constant_formats[cf].nbits + 1;
      x = x | (1ul << constant_formats[cf].nbits);
      x = SIGNEXTEND (x, nb);
    }
  else if (constant_formats[cf].issigned)
    x = SIGNEXTEND (x, constant_formats[cf].nbits);

  x += constant_formats[cf].offset;
  x <<= constant_formats[cf].scale;

  return x;
}

enum machine_registers
{
  REG_RL0, REG_RL1, REG_RL2, REG_RL3, REG_RL4, REG_RL5, REG_RL6, REG_RL7,
  REG_RH0, REG_RH1, REG_RH2, REG_RH3, REG_RH4, REG_RH5, REG_RH6, REG_RH7,
  REG_R0, REG_R1, REG_R2, REG_R3, REG_R4, REG_R5, REG_R6, REG_R7,
  REG_R1_0, REG_R3_2, REG_R5_4, REG_R7_6, REG_P0, REG_P1, REG_P2, REG_P3,
  REG_P4, REG_P5, REG_SP, REG_FP, REG_A0x, REG_A1x, REG_A0w, REG_A1w,
  REG_A0, REG_A1, REG_I0, REG_I1, REG_I2, REG_I3, REG_M0, REG_M1,
  REG_M2, REG_M3, REG_B0, REG_B1, REG_B2, REG_B3, REG_L0, REG_L1,
  REG_L2, REG_L3,
  REG_AZ, REG_AN, REG_AC0, REG_AC1, REG_AV0, REG_AV1, REG_AV0S, REG_AV1S,
  REG_AQ, REG_V, REG_VS,
  REG_sftreset, REG_omode, REG_excause, REG_emucause, REG_idle_req, REG_hwerrcause, REG_CC, REG_LC0,
  REG_LC1, REG_ASTAT, REG_RETS, REG_LT0, REG_LB0, REG_LT1, REG_LB1,
  REG_CYCLES, REG_CYCLES2, REG_USP, REG_SEQSTAT, REG_SYSCFG, REG_RETI, REG_RETX, REG_RETN,
  REG_RETE, REG_EMUDAT, REG_BR0, REG_BR1, REG_BR2, REG_BR3, REG_BR4, REG_BR5, REG_BR6,
  REG_BR7, REG_PL0, REG_PL1, REG_PL2, REG_PL3, REG_PL4, REG_PL5, REG_SLP, REG_FLP,
  REG_PH0, REG_PH1, REG_PH2, REG_PH3, REG_PH4, REG_PH5, REG_SHP, REG_FHP,
  REG_IL0, REG_IL1, REG_IL2, REG_IL3, REG_ML0, REG_ML1, REG_ML2, REG_ML3,
  REG_BL0, REG_BL1, REG_BL2, REG_BL3, REG_LL0, REG_LL1, REG_LL2, REG_LL3,
  REG_IH0, REG_IH1, REG_IH2, REG_IH3, REG_MH0, REG_MH1, REG_MH2, REG_MH3,
  REG_BH0, REG_BH1, REG_BH2, REG_BH3, REG_LH0, REG_LH1, REG_LH2, REG_LH3,
  REG_AC0_COPY, REG_V_COPY, REG_RND_MOD,
  REG_LASTREG,
};

enum reg_class
{
  rc_dregs_lo, rc_dregs_hi, rc_dregs, rc_dregs_pair, rc_pregs, rc_spfp, rc_dregs_hilo, rc_accum_ext,
  rc_accum_word, rc_accum, rc_iregs, rc_mregs, rc_bregs, rc_lregs, rc_dpregs, rc_gregs,
  rc_regs, rc_statbits, rc_ignore_bits, rc_ccstat, rc_counters, rc_dregs2_sysregs1, rc_open, rc_sysregs2,
  rc_sysregs3, rc_allregs,
  LIM_REG_CLASSES
};

static const char * const reg_names[] =
{
  "R0.L", "R1.L", "R2.L", "R3.L", "R4.L", "R5.L", "R6.L", "R7.L",
  "R0.H", "R1.H", "R2.H", "R3.H", "R4.H", "R5.H", "R6.H", "R7.H",
  "R0", "R1", "R2", "R3", "R4", "R5", "R6", "R7",
  "R1:0", "R3:2", "R5:4", "R7:6", "P0", "P1", "P2", "P3",
  "P4", "P5", "SP", "FP", "A0.X", "A1.X", "A0.W", "A1.W",
  "A0", "A1", "I0", "I1", "I2", "I3", "M0", "M1",
  "M2", "M3", "B0", "B1", "B2", "B3", "L0", "L1",
  "L2", "L3",
  "AZ", "AN", "AC0", "AC1", "AV0", "AV1", "AV0S", "AV1S",
  "AQ", "V", "VS",
  "sftreset", "omode", "excause", "emucause", "idle_req", "hwerrcause", "CC", "LC0",
  "LC1", "ASTAT", "RETS", "LT0", "LB0", "LT1", "LB1",
  "CYCLES", "CYCLES2", "USP", "SEQSTAT", "SYSCFG", "RETI", "RETX", "RETN",
  "RETE", "EMUDAT",
  "R0.B", "R1.B", "R2.B", "R3.B", "R4.B", "R5.B", "R6.B", "R7.B",
  "P0.L", "P1.L", "P2.L", "P3.L", "P4.L", "P5.L", "SP.L", "FP.L",
  "P0.H", "P1.H", "P2.H", "P3.H", "P4.H", "P5.H", "SP.H", "FP.H",
  "I0.L", "I1.L", "I2.L", "I3.L", "M0.L", "M1.L", "M2.L", "M3.L",
  "B0.L", "B1.L", "B2.L", "B3.L", "L0.L", "L1.L", "L2.L", "L3.L",
  "I0.H", "I1.H", "I2.H", "I3.H", "M0.H", "M1.H", "M2.H", "M3.H",
  "B0.H", "B1.H", "B2.H", "B3.H", "L0.H", "L1.H", "L2.H", "L3.H",
  "AC0_COPY", "V_COPY", "RND_MOD",
  "LASTREG",
  0
};

#define REGNAME(x) ((x) < REG_LASTREG ? (reg_names[x]) : "...... Illegal register .......")

/* RL(0..7).  */
static const enum machine_registers decode_dregs_lo[] =
{
  REG_RL0, REG_RL1, REG_RL2, REG_RL3, REG_RL4, REG_RL5, REG_RL6, REG_RL7,
};

#define dregs_lo(x) REGNAME (decode_dregs_lo[(x) & 7])

/* RH(0..7).  */
static const enum machine_registers decode_dregs_hi[] =
{
  REG_RH0, REG_RH1, REG_RH2, REG_RH3, REG_RH4, REG_RH5, REG_RH6, REG_RH7,
};

#define dregs_hi(x) REGNAME (decode_dregs_hi[(x) & 7])

/* R(0..7).  */
static const enum machine_registers decode_dregs[] =
{
  REG_R0, REG_R1, REG_R2, REG_R3, REG_R4, REG_R5, REG_R6, REG_R7,
};

#define dregs(x) REGNAME (decode_dregs[(x) & 7])

/* R BYTE(0..7).  */
static const enum machine_registers decode_dregs_byte[] =
{
  REG_BR0, REG_BR1, REG_BR2, REG_BR3, REG_BR4, REG_BR5, REG_BR6, REG_BR7,
};

#define dregs_byte(x) REGNAME (decode_dregs_byte[(x) & 7])

/* P(0..5) SP FP.  */
static const enum machine_registers decode_pregs[] =
{
  REG_P0, REG_P1, REG_P2, REG_P3, REG_P4, REG_P5, REG_SP, REG_FP,
};

#define pregs(x)  REGNAME (decode_pregs[(x) & 7])
#define spfp(x)   REGNAME (decode_spfp[(x) & 1])
#define dregs_hilo(x, i)  REGNAME (decode_dregs_hilo[((i) << 3) | (x)])
#define accum_ext(x)  REGNAME (decode_accum_ext[(x) & 1])
#define accum_word(x) REGNAME (decode_accum_word[(x) & 1])
#define accum(x)  REGNAME (decode_accum[(x) & 1])

/* I(0..3).  */
static const enum machine_registers decode_iregs[] =
{
  REG_I0, REG_I1, REG_I2, REG_I3,
};

#define iregs(x) REGNAME (decode_iregs[(x) & 3])

/* M(0..3).  */
static const enum machine_registers decode_mregs[] =
{
  REG_M0, REG_M1, REG_M2, REG_M3,
};

#define mregs(x) REGNAME (decode_mregs[(x) & 3])
#define bregs(x) REGNAME (decode_bregs[(x) & 3])
#define lregs(x) REGNAME (decode_lregs[(x) & 3])

/* dregs pregs.  */
static const enum machine_registers decode_dpregs[] =
{
  REG_R0, REG_R1, REG_R2, REG_R3, REG_R4, REG_R5, REG_R6, REG_R7,
  REG_P0, REG_P1, REG_P2, REG_P3, REG_P4, REG_P5, REG_SP, REG_FP,
};

#define dpregs(x) REGNAME (decode_dpregs[(x) & 15])

/* [dregs pregs].  */
static const enum machine_registers decode_gregs[] =
{
  REG_R0, REG_R1, REG_R2, REG_R3, REG_R4, REG_R5, REG_R6, REG_R7,
  REG_P0, REG_P1, REG_P2, REG_P3, REG_P4, REG_P5, REG_SP, REG_FP,
};

#define gregs(x, i) REGNAME (decode_gregs[(((i) << 3) | (x)) & 15])

/* [dregs pregs (iregs mregs) (bregs lregs)].  */
static const enum machine_registers decode_regs[] =
{
  REG_R0, REG_R1, REG_R2, REG_R3, REG_R4, REG_R5, REG_R6, REG_R7,
  REG_P0, REG_P1, REG_P2, REG_P3, REG_P4, REG_P5, REG_SP, REG_FP,
  REG_I0, REG_I1, REG_I2, REG_I3, REG_M0, REG_M1, REG_M2, REG_M3,
  REG_B0, REG_B1, REG_B2, REG_B3, REG_L0, REG_L1, REG_L2, REG_L3,
};

#define regs(x, i) REGNAME (decode_regs[(((i) << 3) | (x)) & 31])

/* [dregs pregs (iregs mregs) (bregs lregs) Low Half].  */
static const enum machine_registers decode_regs_lo[] =
{
  REG_RL0, REG_RL1, REG_RL2, REG_RL3, REG_RL4, REG_RL5, REG_RL6, REG_RL7,
  REG_PL0, REG_PL1, REG_PL2, REG_PL3, REG_PL4, REG_PL5, REG_SLP, REG_FLP,
  REG_IL0, REG_IL1, REG_IL2, REG_IL3, REG_ML0, REG_ML1, REG_ML2, REG_ML3,
  REG_BL0, REG_BL1, REG_BL2, REG_BL3, REG_LL0, REG_LL1, REG_LL2, REG_LL3,
};

#define regs_lo(x, i) REGNAME (decode_regs_lo[(((i) << 3) | (x)) & 31])

/* [dregs pregs (iregs mregs) (bregs lregs) High Half].  */
static const enum machine_registers decode_regs_hi[] =
{
  REG_RH0, REG_RH1, REG_RH2, REG_RH3, REG_RH4, REG_RH5, REG_RH6, REG_RH7,
  REG_PH0, REG_PH1, REG_PH2, REG_PH3, REG_PH4, REG_PH5, REG_SHP, REG_FHP,
  REG_IH0, REG_IH1, REG_IH2, REG_IH3, REG_MH0, REG_MH1, REG_MH2, REG_MH3,
  REG_BH0, REG_BH1, REG_BH2, REG_BH3, REG_LH0, REG_LH1, REG_LH2, REG_LH3,
};

#define regs_hi(x, i) REGNAME (decode_regs_hi[(((i) << 3) | (x)) & 31])

static const enum machine_registers decode_statbits[] =
{
  REG_AZ,        REG_AN,        REG_AC0_COPY,    REG_V_COPY,
  REG_LASTREG,   REG_LASTREG,   REG_AQ,          REG_LASTREG,
  REG_RND_MOD,   REG_LASTREG,   REG_LASTREG,     REG_LASTREG,
  REG_AC0,       REG_AC1,       REG_LASTREG,     REG_LASTREG,
  REG_AV0,       REG_AV0S,      REG_AV1,         REG_AV1S,
  REG_LASTREG,   REG_LASTREG,   REG_LASTREG,     REG_LASTREG,
  REG_V,         REG_VS,        REG_LASTREG,     REG_LASTREG,
  REG_LASTREG,   REG_LASTREG,   REG_LASTREG,     REG_LASTREG,
};

#define statbits(x) REGNAME (decode_statbits[(x) & 31])

/* LC0 LC1.  */
static const enum machine_registers decode_counters[] =
{
  REG_LC0, REG_LC1,
};

#define counters(x)        REGNAME (decode_counters[(x) & 1])
#define dregs2_sysregs1(x) REGNAME (decode_dregs2_sysregs1[(x) & 7])

/* [dregs pregs (iregs mregs) (bregs lregs)
   dregs2_sysregs1 open sysregs2 sysregs3].  */
static const enum machine_registers decode_allregs[] =
{
  REG_R0, REG_R1, REG_R2, REG_R3, REG_R4, REG_R5, REG_R6, REG_R7,
  REG_P0, REG_P1, REG_P2, REG_P3, REG_P4, REG_P5, REG_SP, REG_FP,
  REG_I0, REG_I1, REG_I2, REG_I3, REG_M0, REG_M1, REG_M2, REG_M3,
  REG_B0, REG_B1, REG_B2, REG_B3, REG_L0, REG_L1, REG_L2, REG_L3,
  REG_A0x, REG_A0w, REG_A1x, REG_A1w, REG_LASTREG, REG_LASTREG, REG_ASTAT, REG_RETS,
  REG_LASTREG, REG_LASTREG, REG_LASTREG, REG_LASTREG, REG_LASTREG, REG_LASTREG, REG_LASTREG, REG_LASTREG,
  REG_LC0, REG_LT0, REG_LB0, REG_LC1, REG_LT1, REG_LB1, REG_CYCLES, REG_CYCLES2,
  REG_USP, REG_SEQSTAT, REG_SYSCFG, REG_RETI, REG_RETX, REG_RETN, REG_RETE, REG_EMUDAT,
  REG_LASTREG,
};

#define IS_DREG(g,r)  ((g) == 0 && (r) < 8)
#define IS_PREG(g,r)  ((g) == 1 && (r) < 8)
#define IS_AREG(g,r)  ((g) == 4 && (r) >= 0 && (r) < 4)
#define IS_GENREG(g,r)  ((((g) == 0 || (g) == 1) && (r) < 8) || IS_AREG (g, r))
#define IS_DAGREG(g,r)  (((g) == 2 || (g) == 3) && (r) < 8)
#define IS_SYSREG(g,r) \
  (((g) == 4 && ((r) == 6 || (r) == 7)) || (g) == 6 || (g) == 7)
#define IS_RESERVEDREG(g,r) \
  (((r) > 7) || ((g) == 4 && ((r) == 4 || (r) == 5)) || (g) == 5)

#define allreg(r,g) (!IS_RESERVEDREG (g, r))
#define mostreg(r,g)  (!(IS_DREG (g, r) || IS_PREG (g, r) || IS_RESERVEDREG (g, r)))

#define allregs(x, i) REGNAME (decode_allregs[((i) << 3) | (x)])
#define uimm16s4(x) fmtconst (c_uimm16s4, x, 0, outf)
#define uimm16s4d(x)  fmtconst (c_uimm16s4d, x, 0, outf)
#define pcrel4(x) fmtconst (c_pcrel4, x, pc, outf)
#define pcrel8(x) fmtconst (c_pcrel8, x, pc, outf)
#define pcrel8s4(x) fmtconst (c_pcrel8s4, x, pc, outf)
#define pcrel10(x)  fmtconst (c_pcrel10, x, pc, outf)
#define pcrel12(x)  fmtconst (c_pcrel12, x, pc, outf)
#define negimm5s4(x)  fmtconst (c_negimm5s4, x, 0, outf)
#define rimm16(x) fmtconst (c_rimm16, x, 0, outf)
#define huimm16(x)  fmtconst (c_huimm16, x, 0, outf)
#define imm16(x)  fmtconst (c_imm16, x, 0, outf)
#define imm16d(x) fmtconst (c_imm16d, x, 0, outf)
#define uimm2(x)  fmtconst (c_uimm2, x, 0, outf)
#define uimm3(x)  fmtconst (c_uimm3, x, 0, outf)
#define luimm16(x)  fmtconst (c_luimm16, x, 0, outf)
#define uimm4(x)  fmtconst (c_uimm4, x, 0, outf)
#define uimm5(x)  fmtconst (c_uimm5, x, 0, outf)
#define imm16s2(x)  fmtconst (c_imm16s2, x, 0, outf)
#define uimm8(x)  fmtconst (c_uimm8, x, 0, outf)
#define imm16s4(x)  fmtconst (c_imm16s4, x, 0, outf)
#define uimm4s2(x)  fmtconst (c_uimm4s2, x, 0, outf)
#define uimm4s4(x)  fmtconst (c_uimm4s4, x, 0, outf)
#define uimm4s4d(x) fmtconst (c_uimm4s4d, x, 0, outf)
#define lppcrel10(x)  fmtconst (c_lppcrel10, x, pc, outf)
#define imm3(x)   fmtconst (c_imm3, x, 0, outf)
#define imm4(x)   fmtconst (c_imm4, x, 0, outf)
#define uimm8s4(x)  fmtconst (c_uimm8s4, x, 0, outf)
#define imm5(x)   fmtconst (c_imm5, x, 0, outf)
#define imm5d(x)  fmtconst (c_imm5d, x, 0, outf)
#define imm6(x)   fmtconst (c_imm6, x, 0, outf)
#define imm7(x)   fmtconst (c_imm7, x, 0, outf)
#define imm7d(x)  fmtconst (c_imm7d, x, 0, outf)
#define imm8(x)   fmtconst (c_imm8, x, 0, outf)
#define pcrel24(x)  fmtconst (c_pcrel24, x, pc, outf)
#define uimm16(x) fmtconst (c_uimm16, x, 0, outf)
#define uimm32(x) fmtconst (c_uimm32, x, 0, outf)
#define imm32(x)  fmtconst (c_imm32, x, 0, outf)
#define huimm32(x)  fmtconst (c_huimm32, x, 0, outf)
#define huimm32e(x) fmtconst (c_huimm32e, x, 0, outf)
#define imm7_val(x) fmtconst_val (c_imm7, x, 0)
#define imm16_val(x)  fmtconst_val (c_uimm16, x, 0)
#define luimm16_val(x)  fmtconst_val (c_luimm16, x, 0)

/* (arch.pm)arch_disassembler_functions.  */
#ifndef OUTS
#define OUTS(p, txt) (p)->fprintf_func ((p)->stream, "%s", txt)
#endif
#define OUT(p, txt, ...) (p)->fprintf_func ((p)->stream, txt, ## __VA_ARGS__)

static void
amod0 (int s0, int x0, disassemble_info *outf)
{
  if (s0 == 1 && x0 == 0)
    OUTS (outf, " (S)");
  else if (s0 == 0 && x0 == 1)
    OUTS (outf, " (CO)");
  else if (s0 == 1 && x0 == 1)
    OUTS (outf, " (SCO)");
}

static void
amod1 (int s0, int x0, disassemble_info *outf)
{
  if (s0 == 0 && x0 == 0)
    OUTS (outf, " (NS)");
  else if (s0 == 1 && x0 == 0)
    OUTS (outf, " (S)");
}

static void
amod0amod2 (int s0, int x0, int aop0, disassemble_info *outf)
{
  if (s0 == 1 && x0 == 0 && aop0 == 0)
    OUTS (outf, " (S)");
  else if (s0 == 0 && x0 == 1 && aop0 == 0)
    OUTS (outf, " (CO)");
  else if (s0 == 1 && x0 == 1 && aop0 == 0)
    OUTS (outf, " (SCO)");
  else if (s0 == 0 && x0 == 0 && aop0 == 2)
    OUTS (outf, " (ASR)");
  else if (s0 == 1 && x0 == 0 && aop0 == 2)
    OUTS (outf, " (S, ASR)");
  else if (s0 == 0 && x0 == 1 && aop0 == 2)
    OUTS (outf, " (CO, ASR)");
  else if (s0 == 1 && x0 == 1 && aop0 == 2)
    OUTS (outf, " (SCO, ASR)");
  else if (s0 == 0 && x0 == 0 && aop0 == 3)
    OUTS (outf, " (ASL)");
  else if (s0 == 1 && x0 == 0 && aop0 == 3)
    OUTS (outf, " (S, ASL)");
  else if (s0 == 0 && x0 == 1 && aop0 == 3)
    OUTS (outf, " (CO, ASL)");
  else if (s0 == 1 && x0 == 1 && aop0 == 3)
    OUTS (outf, " (SCO, ASL)");
}

static void
searchmod (int r0, disassemble_info *outf)
{
  if (r0 == 0)
    OUTS (outf, "GT");
  else if (r0 == 1)
    OUTS (outf, "GE");
  else if (r0 == 2)
    OUTS (outf, "LT");
  else if (r0 == 3)
    OUTS (outf, "LE");
}

static void
aligndir (int r0, disassemble_info *outf)
{
  if (r0 == 1)
    OUTS (outf, " (R)");
}

static int
decode_multfunc (int h0, int h1, int src0, int src1, disassemble_info *outf)
{
  const char *s0, *s1;

  if (h0)
    s0 = dregs_hi (src0);
  else
    s0 = dregs_lo (src0);

  if (h1)
    s1 = dregs_hi (src1);
  else
    s1 = dregs_lo (src1);

  OUTS (outf, s0);
  OUTS (outf, " * ");
  OUTS (outf, s1);
  return 0;
}

static int
decode_macfunc (int which, int op, int h0, int h1, int src0, int src1, disassemble_info *outf)
{
  const char *a;
  const char *sop = "<unknown op>";

  if (which)
    a = "A1";
  else
    a = "A0";

  if (op == 3)
    {
      OUTS (outf, a);
      return 0;
    }

  switch (op)
    {
    case 0: sop = " = ";   break;
    case 1: sop = " += ";  break;
    case 2: sop = " -= ";  break;
    default: break;
    }

  OUTS (outf, a);
  OUTS (outf, sop);
  decode_multfunc (h0, h1, src0, src1, outf);

  return 0;
}

static void
decode_optmode (int mod, int MM, disassemble_info *outf)
{
  if (mod == 0 && MM == 0)
    return;

  OUTS (outf, " (");

  if (MM && !mod)
    {
      OUTS (outf, "M)");
      return;
    }

  if (MM)
    OUTS (outf, "M, ");

  if (mod == M_S2RND)
    OUTS (outf, "S2RND");
  else if (mod == M_T)
    OUTS (outf, "T");
  else if (mod == M_W32)
    OUTS (outf, "W32");
  else if (mod == M_FU)
    OUTS (outf, "FU");
  else if (mod == M_TFU)
    OUTS (outf, "TFU");
  else if (mod == M_IS)
    OUTS (outf, "IS");
  else if (mod == M_ISS2)
    OUTS (outf, "ISS2");
  else if (mod == M_IH)
    OUTS (outf, "IH");
  else if (mod == M_IU)
    OUTS (outf, "IU");
  else
    abort ();

  OUTS (outf, ")");
}

static struct saved_state
{
  bu32 dpregs[16], iregs[4], mregs[4], bregs[4], lregs[4];
  bu32 ax[2], aw[2];
  bu32 lt[2], lc[2], lb[2];
  bu32 rets;
} saved_state;

#define DREG(x)         (saved_state.dpregs[x])
#define GREG(x, i)      DPREG ((x) | ((i) << 3))
#define DPREG(x)        (saved_state.dpregs[x])
#define DREG(x)         (saved_state.dpregs[x])
#define PREG(x)         (saved_state.dpregs[(x) + 8])
#define SPREG           PREG (6)
#define FPREG           PREG (7)
#define IREG(x)         (saved_state.iregs[x])
#define MREG(x)         (saved_state.mregs[x])
#define BREG(x)         (saved_state.bregs[x])
#define LREG(x)         (saved_state.lregs[x])
#define AXREG(x)        (saved_state.ax[x])
#define AWREG(x)        (saved_state.aw[x])
#define LCREG(x)        (saved_state.lc[x])
#define LTREG(x)        (saved_state.lt[x])
#define LBREG(x)        (saved_state.lb[x])
#define RETSREG         (saved_state.rets)

static bu32 *
get_allreg (int grp, int reg)
{
  int fullreg = (grp << 3) | reg;
  /* REG_R0, REG_R1, REG_R2, REG_R3, REG_R4, REG_R5, REG_R6, REG_R7,
     REG_P0, REG_P1, REG_P2, REG_P3, REG_P4, REG_P5, REG_SP, REG_FP,
     REG_I0, REG_I1, REG_I2, REG_I3, REG_M0, REG_M1, REG_M2, REG_M3,
     REG_B0, REG_B1, REG_B2, REG_B3, REG_L0, REG_L1, REG_L2, REG_L3,
     REG_A0x, REG_A0w, REG_A1x, REG_A1w, , , REG_ASTAT, REG_RETS,
     , , , , , , , ,
     REG_LC0, REG_LT0, REG_LB0, REG_LC1, REG_LT1, REG_LB1, REG_CYCLES,
     REG_CYCLES2,
     REG_USP, REG_SEQSTAT, REG_SYSCFG, REG_RETI, REG_RETX, REG_RETN, REG_RETE,
     REG_LASTREG */
  switch (fullreg >> 2)
    {
    case 0: case 1: return &DREG (reg);
    case 2: case 3: return &PREG (reg);
    case 4: return &IREG (reg & 3);
    case 5: return &MREG (reg & 3);
    case 6: return &BREG (reg & 3);
    case 7: return &LREG (reg & 3);
    default:
      switch (fullreg)
  {
  case 32: return &AXREG (0);
  case 33: return &AWREG (0);
  case 34: return &AXREG (1);
  case 35: return &AWREG (1);
  case 39: return &RETSREG;
  case 48: return &LCREG (0);
  case 49: return &LTREG (0);
  case 50: return &LBREG (0);
  case 51: return &LCREG (1);
  case 52: return &LTREG (1);
  case 53: return &LBREG (1);
  }
    }
  abort ();
}

static int
decode_ProgCtrl_0 (TIword iw0, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* ProgCtrl
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |.prgfunc.......|.poprnd........|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int poprnd  = ((iw0 >> ProgCtrl_poprnd_bits) & ProgCtrl_poprnd_mask);
  int prgfunc = ((iw0 >> ProgCtrl_prgfunc_bits) & ProgCtrl_prgfunc_mask);

  if (prgfunc == 0 && poprnd == 0)
    OUTS (outf, "NOP");
  else if (priv->parallel)
    return 0;
  else if (prgfunc == 1 && poprnd == 0)
    OUTS (outf, "RTS");
  else if (prgfunc == 1 && poprnd == 1)
    OUTS (outf, "RTI");
  else if (prgfunc == 1 && poprnd == 2)
    OUTS (outf, "RTX");
  else if (prgfunc == 1 && poprnd == 3)
    OUTS (outf, "RTN");
  else if (prgfunc == 1 && poprnd == 4)
    OUTS (outf, "RTE");
  else if (prgfunc == 2 && poprnd == 0)
    OUTS (outf, "IDLE");
  else if (prgfunc == 2 && poprnd == 3)
    OUTS (outf, "CSYNC");
  else if (prgfunc == 2 && poprnd == 4)
    OUTS (outf, "SSYNC");
  else if (prgfunc == 2 && poprnd == 5)
    OUTS (outf, "EMUEXCPT");
  else if (prgfunc == 3 && IS_DREG (0, poprnd))
    {
      OUTS (outf, "CLI ");
      OUTS (outf, dregs (poprnd));
    }
  else if (prgfunc == 4 && IS_DREG (0, poprnd))
    {
      OUTS (outf, "STI ");
      OUTS (outf, dregs (poprnd));
    }
  else if (prgfunc == 5 && IS_PREG (1, poprnd))
    {
      OUTS (outf, "JUMP (");
      OUTS (outf, pregs (poprnd));
      OUTS (outf, ")");
    }
  else if (prgfunc == 6 && IS_PREG (1, poprnd))
    {
      OUTS (outf, "CALL (");
      OUTS (outf, pregs (poprnd));
      OUTS (outf, ")");
    }
  else if (prgfunc == 7 && IS_PREG (1, poprnd))
    {
      OUTS (outf, "CALL (PC + ");
      OUTS (outf, pregs (poprnd));
      OUTS (outf, ")");
    }
  else if (prgfunc == 8 && IS_PREG (1, poprnd))
    {
      OUTS (outf, "JUMP (PC + ");
      OUTS (outf, pregs (poprnd));
      OUTS (outf, ")");
    }
  else if (prgfunc == 9)
    {
      OUTS (outf, "RAISE ");
      OUTS (outf, uimm4 (poprnd));
    }
  else if (prgfunc == 10)
    {
      OUTS (outf, "EXCPT ");
      OUTS (outf, uimm4 (poprnd));
    }
  else if (prgfunc == 11 && IS_PREG (1, poprnd) && poprnd <= 5)
    {
      OUTS (outf, "TESTSET (");
      OUTS (outf, pregs (poprnd));
      OUTS (outf, ")");
    }
  else
    return 0;
  return 2;
}

static int
decode_CaCTRL_0 (TIword iw0, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* CaCTRL
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 |.a.|.op....|.reg.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int a   = ((iw0 >> CaCTRL_a_bits) & CaCTRL_a_mask);
  int op  = ((iw0 >> CaCTRL_op_bits) & CaCTRL_op_mask);
  int reg = ((iw0 >> CaCTRL_reg_bits) & CaCTRL_reg_mask);

  if (priv->parallel)
    return 0;

  if (a == 0 && op == 0)
    {
      OUTS (outf, "PREFETCH[");
      OUTS (outf, pregs (reg));
      OUTS (outf, "]");
    }
  else if (a == 0 && op == 1)
    {
      OUTS (outf, "FLUSHINV[");
      OUTS (outf, pregs (reg));
      OUTS (outf, "]");
    }
  else if (a == 0 && op == 2)
    {
      OUTS (outf, "FLUSH[");
      OUTS (outf, pregs (reg));
      OUTS (outf, "]");
    }
  else if (a == 0 && op == 3)
    {
      OUTS (outf, "IFLUSH[");
      OUTS (outf, pregs (reg));
      OUTS (outf, "]");
    }
  else if (a == 1 && op == 0)
    {
      OUTS (outf, "PREFETCH[");
      OUTS (outf, pregs (reg));
      OUTS (outf, "++]");
    }
  else if (a == 1 && op == 1)
    {
      OUTS (outf, "FLUSHINV[");
      OUTS (outf, pregs (reg));
      OUTS (outf, "++]");
    }
  else if (a == 1 && op == 2)
    {
      OUTS (outf, "FLUSH[");
      OUTS (outf, pregs (reg));
      OUTS (outf, "++]");
    }
  else if (a == 1 && op == 3)
    {
      OUTS (outf, "IFLUSH[");
      OUTS (outf, pregs (reg));
      OUTS (outf, "++]");
    }
  else
    return 0;
  return 2;
}

static int
decode_PushPopReg_0 (TIword iw0, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* PushPopReg
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |.W.|.grp.......|.reg.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int W   = ((iw0 >> PushPopReg_W_bits) & PushPopReg_W_mask);
  int grp = ((iw0 >> PushPopReg_grp_bits) & PushPopReg_grp_mask);
  int reg = ((iw0 >> PushPopReg_reg_bits) & PushPopReg_reg_mask);

  if (priv->parallel)
    return 0;

  if (W == 0 && mostreg (reg, grp))
    {
      OUTS (outf, allregs (reg, grp));
      OUTS (outf, " = [SP++]");
    }
  else if (W == 1 && allreg (reg, grp) && !(grp == 1 && reg == 6))
    {
      OUTS (outf, "[--SP] = ");
      OUTS (outf, allregs (reg, grp));
    }
  else
    return 0;
  return 2;
}

static int
decode_PushPopMultiple_0 (TIword iw0, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* PushPopMultiple
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 0 | 0 | 0 | 0 | 1 | 0 |.d.|.p.|.W.|.dr........|.pr........|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int p  = ((iw0 >> PushPopMultiple_p_bits) & PushPopMultiple_p_mask);
  int d  = ((iw0 >> PushPopMultiple_d_bits) & PushPopMultiple_d_mask);
  int W  = ((iw0 >> PushPopMultiple_W_bits) & PushPopMultiple_W_mask);
  int dr = ((iw0 >> PushPopMultiple_dr_bits) & PushPopMultiple_dr_mask);
  int pr = ((iw0 >> PushPopMultiple_pr_bits) & PushPopMultiple_pr_mask);

  if (priv->parallel)
    return 0;

  if (pr > 5)
    return 0;

  if (W == 1 && d == 1 && p == 1)
    {
      OUTS (outf, "[--SP] = (R7:");
      OUTS (outf, imm5d (dr));
      OUTS (outf, ", P5:");
      OUTS (outf, imm5d (pr));
      OUTS (outf, ")");
    }
  else if (W == 1 && d == 1 && p == 0 && pr == 0)
    {
      OUTS (outf, "[--SP] = (R7:");
      OUTS (outf, imm5d (dr));
      OUTS (outf, ")");
    }
  else if (W == 1 && d == 0 && p == 1 && dr == 0)
    {
      OUTS (outf, "[--SP] = (P5:");
      OUTS (outf, imm5d (pr));
      OUTS (outf, ")");
    }
  else if (W == 0 && d == 1 && p == 1)
    {
      OUTS (outf, "(R7:");
      OUTS (outf, imm5d (dr));
      OUTS (outf, ", P5:");
      OUTS (outf, imm5d (pr));
      OUTS (outf, ") = [SP++]");
    }
  else if (W == 0 && d == 1 && p == 0 && pr == 0)
    {
      OUTS (outf, "(R7:");
      OUTS (outf, imm5d (dr));
      OUTS (outf, ") = [SP++]");
    }
  else if (W == 0 && d == 0 && p == 1 && dr == 0)
    {
      OUTS (outf, "(P5:");
      OUTS (outf, imm5d (pr));
      OUTS (outf, ") = [SP++]");
    }
  else
    return 0;
  return 2;
}

static int
decode_ccMV_0 (TIword iw0, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* ccMV
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 0 | 0 | 0 | 0 | 1 | 1 |.T.|.d.|.s.|.dst.......|.src.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int s  = ((iw0 >> CCmv_s_bits) & CCmv_s_mask);
  int d  = ((iw0 >> CCmv_d_bits) & CCmv_d_mask);
  int T  = ((iw0 >> CCmv_T_bits) & CCmv_T_mask);
  int src = ((iw0 >> CCmv_src_bits) & CCmv_src_mask);
  int dst = ((iw0 >> CCmv_dst_bits) & CCmv_dst_mask);

  if (priv->parallel)
    return 0;

  if (T == 1)
    {
      OUTS (outf, "IF CC ");
      OUTS (outf, gregs (dst, d));
      OUTS (outf, " = ");
      OUTS (outf, gregs (src, s));
    }
  else if (T == 0)
    {
      OUTS (outf, "IF !CC ");
      OUTS (outf, gregs (dst, d));
      OUTS (outf, " = ");
      OUTS (outf, gregs (src, s));
    }
  else
    return 0;
  return 2;
}

static int
decode_CCflag_0 (TIword iw0, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* CCflag
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 0 | 0 | 0 | 1 |.I.|.opc.......|.G.|.y.........|.x.........|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int x = ((iw0 >> CCflag_x_bits) & CCflag_x_mask);
  int y = ((iw0 >> CCflag_y_bits) & CCflag_y_mask);
  int I = ((iw0 >> CCflag_I_bits) & CCflag_I_mask);
  int G = ((iw0 >> CCflag_G_bits) & CCflag_G_mask);
  int opc = ((iw0 >> CCflag_opc_bits) & CCflag_opc_mask);

  if (priv->parallel)
    return 0;

  if (opc == 0 && I == 0 && G == 0)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, dregs (x));
      OUTS (outf, " == ");
      OUTS (outf, dregs (y));
    }
  else if (opc == 1 && I == 0 && G == 0)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, dregs (x));
      OUTS (outf, " < ");
      OUTS (outf, dregs (y));
    }
  else if (opc == 2 && I == 0 && G == 0)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, dregs (x));
      OUTS (outf, " <= ");
      OUTS (outf, dregs (y));
    }
  else if (opc == 3 && I == 0 && G == 0)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, dregs (x));
      OUTS (outf, " < ");
      OUTS (outf, dregs (y));
      OUTS (outf, " (IU)");
    }
  else if (opc == 4 && I == 0 && G == 0)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, dregs (x));
      OUTS (outf, " <= ");
      OUTS (outf, dregs (y));
      OUTS (outf, " (IU)");
    }
  else if (opc == 0 && I == 1 && G == 0)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, dregs (x));
      OUTS (outf, " == ");
      OUTS (outf, imm3 (y));
    }
  else if (opc == 1 && I == 1 && G == 0)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, dregs (x));
      OUTS (outf, " < ");
      OUTS (outf, imm3 (y));
    }
  else if (opc == 2 && I == 1 && G == 0)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, dregs (x));
      OUTS (outf, " <= ");
      OUTS (outf, imm3 (y));
    }
  else if (opc == 3 && I == 1 && G == 0)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, dregs (x));
      OUTS (outf, " < ");
      OUTS (outf, uimm3 (y));
      OUTS (outf, " (IU)");
    }
  else if (opc == 4 && I == 1 && G == 0)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, dregs (x));
      OUTS (outf, " <= ");
      OUTS (outf, uimm3 (y));
      OUTS (outf, " (IU)");
    }
  else if (opc == 0 && I == 0 && G == 1)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, pregs (x));
      OUTS (outf, " == ");
      OUTS (outf, pregs (y));
    }
  else if (opc == 1 && I == 0 && G == 1)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, pregs (x));
      OUTS (outf, " < ");
      OUTS (outf, pregs (y));
    }
  else if (opc == 2 && I == 0 && G == 1)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, pregs (x));
      OUTS (outf, " <= ");
      OUTS (outf, pregs (y));
    }
  else if (opc == 3 && I == 0 && G == 1)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, pregs (x));
      OUTS (outf, " < ");
      OUTS (outf, pregs (y));
      OUTS (outf, " (IU)");
    }
  else if (opc == 4 && I == 0 && G == 1)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, pregs (x));
      OUTS (outf, " <= ");
      OUTS (outf, pregs (y));
      OUTS (outf, " (IU)");
    }
  else if (opc == 0 && I == 1 && G == 1)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, pregs (x));
      OUTS (outf, " == ");
      OUTS (outf, imm3 (y));
    }
  else if (opc == 1 && I == 1 && G == 1)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, pregs (x));
      OUTS (outf, " < ");
      OUTS (outf, imm3 (y));
    }
  else if (opc == 2 && I == 1 && G == 1)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, pregs (x));
      OUTS (outf, " <= ");
      OUTS (outf, imm3 (y));
    }
  else if (opc == 3 && I == 1 && G == 1)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, pregs (x));
      OUTS (outf, " < ");
      OUTS (outf, uimm3 (y));
      OUTS (outf, " (IU)");
    }
  else if (opc == 4 && I == 1 && G == 1)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, pregs (x));
      OUTS (outf, " <= ");
      OUTS (outf, uimm3 (y));
      OUTS (outf, " (IU)");
    }
  else if (opc == 5 && I == 0 && G == 0 && x == 0 && y == 0)
    OUTS (outf, "CC = A0 == A1");

  else if (opc == 6 && I == 0 && G == 0 && x == 0 && y == 0)
    OUTS (outf, "CC = A0 < A1");

  else if (opc == 7 && I == 0 && G == 0 && x == 0 && y == 0)
    OUTS (outf, "CC = A0 <= A1");

  else
    return 0;
  return 2;
}

static int
decode_CC2dreg_0 (TIword iw0, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* CC2dreg
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |.op....|.reg.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int op  = ((iw0 >> CC2dreg_op_bits) & CC2dreg_op_mask);
  int reg = ((iw0 >> CC2dreg_reg_bits) & CC2dreg_reg_mask);

  if (priv->parallel)
    return 0;

  if (op == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = CC");
    }
  else if (op == 1)
    {
      OUTS (outf, "CC = ");
      OUTS (outf, dregs (reg));
    }
  else if (op == 3 && reg == 0)
    OUTS (outf, "CC = !CC");
  else
    return 0;

  return 2;
}

static int
decode_CC2stat_0 (TIword iw0, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* CC2stat
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |.D.|.op....|.cbit..............|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int D    = ((iw0 >> CC2stat_D_bits) & CC2stat_D_mask);
  int op   = ((iw0 >> CC2stat_op_bits) & CC2stat_op_mask);
  int cbit = ((iw0 >> CC2stat_cbit_bits) & CC2stat_cbit_mask);

  const char *bitname = statbits (cbit);
  const char * const op_names[] = { "", "|", "&", "^" } ;

  if (priv->parallel)
    return 0;

  if (decode_statbits[cbit] == REG_LASTREG)
    {
      /* All ASTAT bits except CC may be operated on in hardware, but may
         not have a dedicated insn, so still decode "valid" insns.  */
      static char bitnames[64];
      if (cbit != 5)
  sprintf (bitnames, "ASTAT[%i /* unused bit */]", cbit);
      else
  return 0;

      bitname = bitnames;
    }

  if (D == 0)
    OUT (outf, "CC %s= %s", op_names[op], bitname);
  else
    OUT (outf, "%s %s= CC", bitname, op_names[op]);

  return 2;
}

static int
decode_BRCC_0 (TIword iw0, bfd_vma pc, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* BRCC
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 0 | 0 | 1 |.T.|.B.|.offset................................|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int B = ((iw0 >> BRCC_B_bits) & BRCC_B_mask);
  int T = ((iw0 >> BRCC_T_bits) & BRCC_T_mask);
  int offset = ((iw0 >> BRCC_offset_bits) & BRCC_offset_mask);

  if (priv->parallel)
    return 0;

  if (T == 1 && B == 1)
    {
      OUTS (outf, "IF CC JUMP 0x");
      OUTS (outf, pcrel10 (offset));
      OUTS (outf, " (BP)");
    }
  else if (T == 0 && B == 1)
    {
      OUTS (outf, "IF !CC JUMP 0x");
      OUTS (outf, pcrel10 (offset));
      OUTS (outf, " (BP)");
    }
  else if (T == 1)
    {
      OUTS (outf, "IF CC JUMP 0x");
      OUTS (outf, pcrel10 (offset));
    }
  else if (T == 0)
    {
      OUTS (outf, "IF !CC JUMP 0x");
      OUTS (outf, pcrel10 (offset));
    }
  else
    return 0;

  return 2;
}

static int
decode_UJUMP_0 (TIword iw0, bfd_vma pc, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* UJUMP
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 0 | 1 | 0 |.offset........................................|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int offset = ((iw0 >> UJump_offset_bits) & UJump_offset_mask);

  if (priv->parallel)
    return 0;

  OUTS (outf, "JUMP.S 0x");
  OUTS (outf, pcrel12 (offset));
  return 2;
}

static int
decode_REGMV_0 (TIword iw0, disassemble_info *outf)
{
  /* REGMV
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 0 | 1 | 1 |.gd........|.gs........|.dst.......|.src.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int gs  = ((iw0 >> RegMv_gs_bits) & RegMv_gs_mask);
  int gd  = ((iw0 >> RegMv_gd_bits) & RegMv_gd_mask);
  int src = ((iw0 >> RegMv_src_bits) & RegMv_src_mask);
  int dst = ((iw0 >> RegMv_dst_bits) & RegMv_dst_mask);

  /* Reserved slots cannot be a src/dst.  */
  if (IS_RESERVEDREG (gs, src) || IS_RESERVEDREG (gd, dst))
    goto invalid_move;

  /* Standard register moves  */
  if ((gs < 2) ||                               /* Dregs/Pregs as source  */
      (gd < 2) ||                               /* Dregs/Pregs as dest    */
      (gs == 4 && src < 4) ||                   /* Accumulators as source */
      (gd == 4 && dst < 4 && (gs < 4)) ||       /* Accumulators as dest   */
      (gs == 7 && src == 7 && !(gd == 4 && dst < 4)) || /* EMUDAT as src  */
      (gd == 7 && dst == 7))                    /* EMUDAT as dest         */
    goto valid_move;

  /* dareg = dareg (IMBL) */
  if (gs < 4 && gd < 4)
    goto valid_move;

  /* USP can be src to sysregs, but not dagregs.  */
  if ((gs == 7 && src == 0) && (gd >= 4))
    goto valid_move;

  /* USP can move between genregs (only check Accumulators).  */
  if (((gs == 7 && src == 0) && (gd == 4 && dst < 4)) ||
      ((gd == 7 && dst == 0) && (gs == 4 && src < 4)))
    goto valid_move;

  /* Still here ?  Invalid reg pair.  */
 invalid_move:
  return 0;

 valid_move:
  OUTS (outf, allregs (dst, gd));
  OUTS (outf, " = ");
  OUTS (outf, allregs (src, gs));
  return 2;
}

static int
decode_ALU2op_0 (TIword iw0, disassemble_info *outf)
{
  /* ALU2op
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 1 | 0 | 0 | 0 | 0 |.opc...........|.src.......|.dst.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int src = ((iw0 >> ALU2op_src_bits) & ALU2op_src_mask);
  int opc = ((iw0 >> ALU2op_opc_bits) & ALU2op_opc_mask);
  int dst = ((iw0 >> ALU2op_dst_bits) & ALU2op_dst_mask);

  if (opc == 0)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " >>>= ");
      OUTS (outf, dregs (src));
    }
  else if (opc == 1)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " >>= ");
      OUTS (outf, dregs (src));
    }
  else if (opc == 2)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " <<= ");
      OUTS (outf, dregs (src));
    }
  else if (opc == 3)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " *= ");
      OUTS (outf, dregs (src));
    }
  else if (opc == 4)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " = (");
      OUTS (outf, dregs (dst));
      OUTS (outf, " + ");
      OUTS (outf, dregs (src));
      OUTS (outf, ") << 0x1");
    }
  else if (opc == 5)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " = (");
      OUTS (outf, dregs (dst));
      OUTS (outf, " + ");
      OUTS (outf, dregs (src));
      OUTS (outf, ") << 0x2");
    }
  else if (opc == 8)
    {
      OUTS (outf, "DIVQ (");
      OUTS (outf, dregs (dst));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src));
      OUTS (outf, ")");
    }
  else if (opc == 9)
    {
      OUTS (outf, "DIVS (");
      OUTS (outf, dregs (dst));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src));
      OUTS (outf, ")");
    }
  else if (opc == 10)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, dregs_lo (src));
      OUTS (outf, " (X)");
    }
  else if (opc == 11)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, dregs_lo (src));
      OUTS (outf, " (Z)");
    }
  else if (opc == 12)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, dregs_byte (src));
      OUTS (outf, " (X)");
    }
  else if (opc == 13)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, dregs_byte (src));
      OUTS (outf, " (Z)");
    }
  else if (opc == 14)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " = -");
      OUTS (outf, dregs (src));
    }
  else if (opc == 15)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " =~ ");
      OUTS (outf, dregs (src));
    }
  else
    return 0;

  return 2;
}

static int
decode_PTR2op_0 (TIword iw0, disassemble_info *outf)
{
  /* PTR2op
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 1 | 0 | 0 | 0 | 1 | 0 |.opc.......|.src.......|.dst.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int src = ((iw0 >> PTR2op_src_bits) & PTR2op_dst_mask);
  int opc = ((iw0 >> PTR2op_opc_bits) & PTR2op_opc_mask);
  int dst = ((iw0 >> PTR2op_dst_bits) & PTR2op_dst_mask);

  if (opc == 0)
    {
      OUTS (outf, pregs (dst));
      OUTS (outf, " -= ");
      OUTS (outf, pregs (src));
    }
  else if (opc == 1)
    {
      OUTS (outf, pregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, pregs (src));
      OUTS (outf, " << 0x2");
    }
  else if (opc == 3)
    {
      OUTS (outf, pregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, pregs (src));
      OUTS (outf, " >> 0x2");
    }
  else if (opc == 4)
    {
      OUTS (outf, pregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, pregs (src));
      OUTS (outf, " >> 0x1");
    }
  else if (opc == 5)
    {
      OUTS (outf, pregs (dst));
      OUTS (outf, " += ");
      OUTS (outf, pregs (src));
      OUTS (outf, " (BREV)");
    }
  else if (opc == 6)
    {
      OUTS (outf, pregs (dst));
      OUTS (outf, " = (");
      OUTS (outf, pregs (dst));
      OUTS (outf, " + ");
      OUTS (outf, pregs (src));
      OUTS (outf, ") << 0x1");
    }
  else if (opc == 7)
    {
      OUTS (outf, pregs (dst));
      OUTS (outf, " = (");
      OUTS (outf, pregs (dst));
      OUTS (outf, " + ");
      OUTS (outf, pregs (src));
      OUTS (outf, ") << 0x2");
    }
  else
    return 0;

  return 2;
}

static int
decode_LOGI2op_0 (TIword iw0, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* LOGI2op
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 1 | 0 | 0 | 1 |.opc.......|.src...............|.dst.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int src = ((iw0 >> LOGI2op_src_bits) & LOGI2op_src_mask);
  int opc = ((iw0 >> LOGI2op_opc_bits) & LOGI2op_opc_mask);
  int dst = ((iw0 >> LOGI2op_dst_bits) & LOGI2op_dst_mask);

  if (priv->parallel)
    return 0;

  if (opc == 0)
    {
      OUTS (outf, "CC = !BITTST (");
      OUTS (outf, dregs (dst));
      OUTS (outf, ", ");
      OUTS (outf, uimm5 (src));
      OUTS (outf, ");\t\t/* bit");
      OUTS (outf, imm7d (src));
      OUTS (outf, " */");
      priv->comment = true;
    }
  else if (opc == 1)
    {
      OUTS (outf, "CC = BITTST (");
      OUTS (outf, dregs (dst));
      OUTS (outf, ", ");
      OUTS (outf, uimm5 (src));
      OUTS (outf, ");\t\t/* bit");
      OUTS (outf, imm7d (src));
      OUTS (outf, " */");
      priv->comment = true;
    }
  else if (opc == 2)
    {
      OUTS (outf, "BITSET (");
      OUTS (outf, dregs (dst));
      OUTS (outf, ", ");
      OUTS (outf, uimm5 (src));
      OUTS (outf, ");\t\t/* bit");
      OUTS (outf, imm7d (src));
      OUTS (outf, " */");
      priv->comment = true;
    }
  else if (opc == 3)
    {
      OUTS (outf, "BITTGL (");
      OUTS (outf, dregs (dst));
      OUTS (outf, ", ");
      OUTS (outf, uimm5 (src));
      OUTS (outf, ");\t\t/* bit");
      OUTS (outf, imm7d (src));
      OUTS (outf, " */");
      priv->comment = true;
    }
  else if (opc == 4)
    {
      OUTS (outf, "BITCLR (");
      OUTS (outf, dregs (dst));
      OUTS (outf, ", ");
      OUTS (outf, uimm5 (src));
      OUTS (outf, ");\t\t/* bit");
      OUTS (outf, imm7d (src));
      OUTS (outf, " */");
      priv->comment = true;
    }
  else if (opc == 5)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " >>>= ");
      OUTS (outf, uimm5 (src));
    }
  else if (opc == 6)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " >>= ");
      OUTS (outf, uimm5 (src));
    }
  else if (opc == 7)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " <<= ");
      OUTS (outf, uimm5 (src));
    }
  else
    return 0;

  return 2;
}

static int
decode_COMP3op_0 (TIword iw0, disassemble_info *outf)
{
  /* COMP3op
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 1 | 0 | 1 |.opc.......|.dst.......|.src1......|.src0......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int opc  = ((iw0 >> COMP3op_opc_bits) & COMP3op_opc_mask);
  int dst  = ((iw0 >> COMP3op_dst_bits) & COMP3op_dst_mask);
  int src0 = ((iw0 >> COMP3op_src0_bits) & COMP3op_src0_mask);
  int src1 = ((iw0 >> COMP3op_src1_bits) & COMP3op_src1_mask);

  if (opc == 5 && src1 == src0)
    {
      OUTS (outf, pregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, pregs (src0));
      OUTS (outf, " << 0x1");
    }
  else if (opc == 1)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs (src1));
    }
  else if (opc == 2)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " & ");
      OUTS (outf, dregs (src1));
    }
  else if (opc == 3)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " | ");
      OUTS (outf, dregs (src1));
    }
  else if (opc == 4)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " ^ ");
      OUTS (outf, dregs (src1));
    }
  else if (opc == 5)
    {
      OUTS (outf, pregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, pregs (src0));
      OUTS (outf, " + ");
      OUTS (outf, pregs (src1));
    }
  else if (opc == 6)
    {
      OUTS (outf, pregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, pregs (src0));
      OUTS (outf, " + (");
      OUTS (outf, pregs (src1));
      OUTS (outf, " << 0x1)");
    }
  else if (opc == 7)
    {
      OUTS (outf, pregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, pregs (src0));
      OUTS (outf, " + (");
      OUTS (outf, pregs (src1));
      OUTS (outf, " << 0x2)");
    }
  else if (opc == 0)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs (src1));
    }
  else
    return 0;

  return 2;
}

static int
decode_COMPI2opD_0 (TIword iw0, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* COMPI2opD
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 1 | 1 | 0 | 0 |.op|..src......................|.dst.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int op  = ((iw0 >> COMPI2opD_op_bits) & COMPI2opD_op_mask);
  int dst = ((iw0 >> COMPI2opD_dst_bits) & COMPI2opD_dst_mask);
  int src = ((iw0 >> COMPI2opD_src_bits) & COMPI2opD_src_mask);

  bu32 *pval = get_allreg (0, dst);

  if (priv->parallel)
    return 0;

  /* Since we don't have 32-bit immediate loads, we allow the disassembler
     to combine them, so it prints out the right values.
     Here we keep track of the registers.  */
  if (op == 0)
    {
      *pval = imm7_val (src);
      if (src & 0x40)
  *pval |= 0xFFFFFF80;
      else
  *pval &= 0x7F;
    }

  if (op == 0)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, imm7 (src));
      OUTS (outf, " (X);\t\t/*\t\t");
      OUTS (outf, dregs (dst));
      OUTS (outf, "=");
      OUTS (outf, uimm32 (*pval));
      OUTS (outf, "(");
      OUTS (outf, imm32 (*pval));
      OUTS (outf, ") */");
      priv->comment = true;
    }
  else if (op == 1)
    {
      OUTS (outf, dregs (dst));
      OUTS (outf, " += ");
      OUTS (outf, imm7 (src));
      OUTS (outf, ";\t\t/* (");
      OUTS (outf, imm7d (src));
      OUTS (outf, ") */");
      priv->comment = true;
    }
  else
    return 0;

  return 2;
}

static int
decode_COMPI2opP_0 (TIword iw0, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* COMPI2opP
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 0 | 1 | 1 | 0 | 1 |.op|.src.......................|.dst.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int op  = ((iw0 >> COMPI2opP_op_bits) & COMPI2opP_op_mask);
  int src = ((iw0 >> COMPI2opP_src_bits) & COMPI2opP_src_mask);
  int dst = ((iw0 >> COMPI2opP_dst_bits) & COMPI2opP_dst_mask);

  bu32 *pval = get_allreg (1, dst);

  if (priv->parallel)
    return 0;

  if (op == 0)
    {
      *pval = imm7_val (src);
      if (src & 0x40)
  *pval |= 0xFFFFFF80;
      else
  *pval &= 0x7F;
    }

  if (op == 0)
    {
      OUTS (outf, pregs (dst));
      OUTS (outf, " = ");
      OUTS (outf, imm7 (src));
      OUTS (outf, " (X);\t\t/*\t\t");
      OUTS (outf, pregs (dst));
      OUTS (outf, "=");
      OUTS (outf, uimm32 (*pval));
      OUTS (outf, "(");
      OUTS (outf, imm32 (*pval));
      OUTS (outf, ") */");
      priv->comment = true;
    }
  else if (op == 1)
    {
      OUTS (outf, pregs (dst));
      OUTS (outf, " += ");
      OUTS (outf, imm7 (src));
      OUTS (outf, ";\t\t/* (");
      OUTS (outf, imm7d (src));
      OUTS (outf, ") */");
      priv->comment = true;
    }
  else
    return 0;

  return 2;
}

static int
decode_LDSTpmod_0 (TIword iw0, disassemble_info *outf)
{
  /* LDSTpmod
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 0 | 0 | 0 |.W.|.aop...|.reg.......|.idx.......|.ptr.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int W   = ((iw0 >> LDSTpmod_W_bits) & LDSTpmod_W_mask);
  int aop = ((iw0 >> LDSTpmod_aop_bits) & LDSTpmod_aop_mask);
  int idx = ((iw0 >> LDSTpmod_idx_bits) & LDSTpmod_idx_mask);
  int ptr = ((iw0 >> LDSTpmod_ptr_bits) & LDSTpmod_ptr_mask);
  int reg = ((iw0 >> LDSTpmod_reg_bits) & LDSTpmod_reg_mask);

  if (aop == 1 && W == 0 && idx == ptr)
    {
      OUTS (outf, dregs_lo (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "]");
    }
  else if (aop == 2 && W == 0 && idx == ptr)
    {
      OUTS (outf, dregs_hi (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "]");
    }
  else if (aop == 1 && W == 1 && idx == ptr)
    {
      OUTS (outf, "W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "] = ");
      OUTS (outf, dregs_lo (reg));
    }
  else if (aop == 2 && W == 1 && idx == ptr)
    {
      OUTS (outf, "W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "] = ");
      OUTS (outf, dregs_hi (reg));
    }
  else if (aop == 0 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " ++ ");
      OUTS (outf, pregs (idx));
      OUTS (outf, "]");
    }
  else if (aop == 1 && W == 0)
    {
      OUTS (outf, dregs_lo (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " ++ ");
      OUTS (outf, pregs (idx));
      OUTS (outf, "]");
    }
  else if (aop == 2 && W == 0)
    {
      OUTS (outf, dregs_hi (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " ++ ");
      OUTS (outf, pregs (idx));
      OUTS (outf, "]");
    }
  else if (aop == 3 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " ++ ");
      OUTS (outf, pregs (idx));
      OUTS (outf, "] (Z)");
    }
  else if (aop == 3 && W == 1)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " ++ ");
      OUTS (outf, pregs (idx));
      OUTS (outf, "] (X)");
    }
  else if (aop == 0 && W == 1)
    {
      OUTS (outf, "[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " ++ ");
      OUTS (outf, pregs (idx));
      OUTS (outf, "] = ");
      OUTS (outf, dregs (reg));
    }
  else if (aop == 1 && W == 1)
    {
      OUTS (outf, "W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " ++ ");
      OUTS (outf, pregs (idx));
      OUTS (outf, "] = ");
      OUTS (outf, dregs_lo (reg));
    }
  else if (aop == 2 && W == 1)
    {
      OUTS (outf, "W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " ++ ");
      OUTS (outf, pregs (idx));
      OUTS (outf, "] = ");
      OUTS (outf, dregs_hi (reg));
    }
  else
    return 0;

  return 2;
}

static int
decode_dagMODim_0 (TIword iw0, disassemble_info *outf)
{
  /* dagMODim
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 0 |.br| 1 | 1 |.op|.m.....|.i.....|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int i  = ((iw0 >> DagMODim_i_bits) & DagMODim_i_mask);
  int m  = ((iw0 >> DagMODim_m_bits) & DagMODim_m_mask);
  int br = ((iw0 >> DagMODim_br_bits) & DagMODim_br_mask);
  int op = ((iw0 >> DagMODim_op_bits) & DagMODim_op_mask);

  if (op == 0 && br == 1)
    {
      OUTS (outf, iregs (i));
      OUTS (outf, " += ");
      OUTS (outf, mregs (m));
      OUTS (outf, " (BREV)");
    }
  else if (op == 0)
    {
      OUTS (outf, iregs (i));
      OUTS (outf, " += ");
      OUTS (outf, mregs (m));
    }
  else if (op == 1 && br == 0)
    {
      OUTS (outf, iregs (i));
      OUTS (outf, " -= ");
      OUTS (outf, mregs (m));
    }
  else
    return 0;

  return 2;
}

static int
decode_dagMODik_0 (TIword iw0, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* dagMODik
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 0 |.op....|.i.....|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int i  = ((iw0 >> DagMODik_i_bits) & DagMODik_i_mask);
  int op = ((iw0 >> DagMODik_op_bits) & DagMODik_op_mask);

  if (op == 0)
    {
      OUTS (outf, iregs (i));
      OUTS (outf, " += 0x2");
    }
  else if (op == 1)
    {
      OUTS (outf, iregs (i));
      OUTS (outf, " -= 0x2");
    }
  else if (op == 2)
    {
      OUTS (outf, iregs (i));
      OUTS (outf, " += 0x4");
    }
  else if (op == 3)
    {
      OUTS (outf, iregs (i));
      OUTS (outf, " -= 0x4");
    }
  else
    return 0;

  if (!priv->parallel)
    {
      OUTS (outf, ";\t\t/* (  ");
      if (op == 0 || op == 1)
  OUTS (outf, "2");
      else if (op == 2 || op == 3)
  OUTS (outf, "4");
      OUTS (outf, ") */");
      priv->comment = true;
    }

  return 2;
}

static int
decode_dspLDST_0 (TIword iw0, disassemble_info *outf)
{
  /* dspLDST
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 0 | 0 | 1 | 1 | 1 |.W.|.aop...|.m.....|.i.....|.reg.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int i   = ((iw0 >> DspLDST_i_bits) & DspLDST_i_mask);
  int m   = ((iw0 >> DspLDST_m_bits) & DspLDST_m_mask);
  int W   = ((iw0 >> DspLDST_W_bits) & DspLDST_W_mask);
  int aop = ((iw0 >> DspLDST_aop_bits) & DspLDST_aop_mask);
  int reg = ((iw0 >> DspLDST_reg_bits) & DspLDST_reg_mask);

  if (aop == 0 && W == 0 && m == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, iregs (i));
      OUTS (outf, "++]");
    }
  else if (aop == 0 && W == 0 && m == 1)
    {
      OUTS (outf, dregs_lo (reg));
      OUTS (outf, " = W[");
      OUTS (outf, iregs (i));
      OUTS (outf, "++]");
    }
  else if (aop == 0 && W == 0 && m == 2)
    {
      OUTS (outf, dregs_hi (reg));
      OUTS (outf, " = W[");
      OUTS (outf, iregs (i));
      OUTS (outf, "++]");
    }
  else if (aop == 1 && W == 0 && m == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, iregs (i));
      OUTS (outf, "--]");
    }
  else if (aop == 1 && W == 0 && m == 1)
    {
      OUTS (outf, dregs_lo (reg));
      OUTS (outf, " = W[");
      OUTS (outf, iregs (i));
      OUTS (outf, "--]");
    }
  else if (aop == 1 && W == 0 && m == 2)
    {
      OUTS (outf, dregs_hi (reg));
      OUTS (outf, " = W[");
      OUTS (outf, iregs (i));
      OUTS (outf, "--]");
    }
  else if (aop == 2 && W == 0 && m == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, iregs (i));
      OUTS (outf, "]");
    }
  else if (aop == 2 && W == 0 && m == 1)
    {
      OUTS (outf, dregs_lo (reg));
      OUTS (outf, " = W[");
      OUTS (outf, iregs (i));
      OUTS (outf, "]");
    }
  else if (aop == 2 && W == 0 && m == 2)
    {
      OUTS (outf, dregs_hi (reg));
      OUTS (outf, " = W[");
      OUTS (outf, iregs (i));
      OUTS (outf, "]");
    }
  else if (aop == 0 && W == 1 && m == 0)
    {
      OUTS (outf, "[");
      OUTS (outf, iregs (i));
      OUTS (outf, "++] = ");
      OUTS (outf, dregs (reg));
    }
  else if (aop == 0 && W == 1 && m == 1)
    {
      OUTS (outf, "W[");
      OUTS (outf, iregs (i));
      OUTS (outf, "++] = ");
      OUTS (outf, dregs_lo (reg));
    }
  else if (aop == 0 && W == 1 && m == 2)
    {
      OUTS (outf, "W[");
      OUTS (outf, iregs (i));
      OUTS (outf, "++] = ");
      OUTS (outf, dregs_hi (reg));
    }
  else if (aop == 1 && W == 1 && m == 0)
    {
      OUTS (outf, "[");
      OUTS (outf, iregs (i));
      OUTS (outf, "--] = ");
      OUTS (outf, dregs (reg));
    }
  else if (aop == 1 && W == 1 && m == 1)
    {
      OUTS (outf, "W[");
      OUTS (outf, iregs (i));
      OUTS (outf, "--] = ");
      OUTS (outf, dregs_lo (reg));
    }
  else if (aop == 1 && W == 1 && m == 2)
    {
      OUTS (outf, "W[");
      OUTS (outf, iregs (i));
      OUTS (outf, "--] = ");
      OUTS (outf, dregs_hi (reg));
    }
  else if (aop == 2 && W == 1 && m == 0)
    {
      OUTS (outf, "[");
      OUTS (outf, iregs (i));
      OUTS (outf, "] = ");
      OUTS (outf, dregs (reg));
    }
  else if (aop == 2 && W == 1 && m == 1)
    {
      OUTS (outf, "W[");
      OUTS (outf, iregs (i));
      OUTS (outf, "] = ");
      OUTS (outf, dregs_lo (reg));
    }
  else if (aop == 2 && W == 1 && m == 2)
    {
      OUTS (outf, "W[");
      OUTS (outf, iregs (i));
      OUTS (outf, "] = ");
      OUTS (outf, dregs_hi (reg));
    }
  else if (aop == 3 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, iregs (i));
      OUTS (outf, " ++ ");
      OUTS (outf, mregs (m));
      OUTS (outf, "]");
    }
  else if (aop == 3 && W == 1)
    {
      OUTS (outf, "[");
      OUTS (outf, iregs (i));
      OUTS (outf, " ++ ");
      OUTS (outf, mregs (m));
      OUTS (outf, "] = ");
      OUTS (outf, dregs (reg));
    }
  else
    return 0;

  return 2;
}

static int
decode_LDST_0 (TIword iw0, disassemble_info *outf)
{
  /* LDST
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 0 | 0 | 1 |.sz....|.W.|.aop...|.Z.|.ptr.......|.reg.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int Z   = ((iw0 >> LDST_Z_bits) & LDST_Z_mask);
  int W   = ((iw0 >> LDST_W_bits) & LDST_W_mask);
  int sz  = ((iw0 >> LDST_sz_bits) & LDST_sz_mask);
  int aop = ((iw0 >> LDST_aop_bits) & LDST_aop_mask);
  int reg = ((iw0 >> LDST_reg_bits) & LDST_reg_mask);
  int ptr = ((iw0 >> LDST_ptr_bits) & LDST_ptr_mask);

  if (aop == 0 && sz == 0 && Z == 0 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "++]");
    }
  else if (aop == 0 && sz == 0 && Z == 1 && W == 0 && reg != ptr)
    {
      OUTS (outf, pregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "++]");
    }
  else if (aop == 0 && sz == 1 && Z == 0 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "++] (Z)");
    }
  else if (aop == 0 && sz == 1 && Z == 1 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "++] (X)");
    }
  else if (aop == 0 && sz == 2 && Z == 0 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = B[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "++] (Z)");
    }
  else if (aop == 0 && sz == 2 && Z == 1 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = B[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "++] (X)");
    }
  else if (aop == 1 && sz == 0 && Z == 0 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "--]");
    }
  else if (aop == 1 && sz == 0 && Z == 1 && W == 0 && reg != ptr)
    {
      OUTS (outf, pregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "--]");
    }
  else if (aop == 1 && sz == 1 && Z == 0 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "--] (Z)");
    }
  else if (aop == 1 && sz == 1 && Z == 1 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "--] (X)");
    }
  else if (aop == 1 && sz == 2 && Z == 0 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = B[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "--] (Z)");
    }
  else if (aop == 1 && sz == 2 && Z == 1 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = B[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "--] (X)");
    }
  else if (aop == 2 && sz == 0 && Z == 0 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "]");
    }
  else if (aop == 2 && sz == 0 && Z == 1 && W == 0)
    {
      OUTS (outf, pregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "]");
    }
  else if (aop == 2 && sz == 1 && Z == 0 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "] (Z)");
    }
  else if (aop == 2 && sz == 1 && Z == 1 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "] (X)");
    }
  else if (aop == 2 && sz == 2 && Z == 0 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = B[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "] (Z)");
    }
  else if (aop == 2 && sz == 2 && Z == 1 && W == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = B[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "] (X)");
    }
  else if (aop == 0 && sz == 0 && Z == 0 && W == 1)
    {
      OUTS (outf, "[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "++] = ");
      OUTS (outf, dregs (reg));
    }
  else if (aop == 0 && sz == 0 && Z == 1 && W == 1)
    {
      OUTS (outf, "[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "++] = ");
      OUTS (outf, pregs (reg));
    }
  else if (aop == 0 && sz == 1 && Z == 0 && W == 1)
    {
      OUTS (outf, "W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "++] = ");
      OUTS (outf, dregs (reg));
    }
  else if (aop == 0 && sz == 2 && Z == 0 && W == 1)
    {
      OUTS (outf, "B[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "++] = ");
      OUTS (outf, dregs (reg));
    }
  else if (aop == 1 && sz == 0 && Z == 0 && W == 1)
    {
      OUTS (outf, "[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "--] = ");
      OUTS (outf, dregs (reg));
    }
  else if (aop == 1 && sz == 0 && Z == 1 && W == 1)
    {
      OUTS (outf, "[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "--] = ");
      OUTS (outf, pregs (reg));
    }
  else if (aop == 1 && sz == 1 && Z == 0 && W == 1)
    {
      OUTS (outf, "W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "--] = ");
      OUTS (outf, dregs (reg));
    }
  else if (aop == 1 && sz == 2 && Z == 0 && W == 1)
    {
      OUTS (outf, "B[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "--] = ");
      OUTS (outf, dregs (reg));
    }
  else if (aop == 2 && sz == 0 && Z == 0 && W == 1)
    {
      OUTS (outf, "[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "] = ");
      OUTS (outf, dregs (reg));
    }
  else if (aop == 2 && sz == 0 && Z == 1 && W == 1)
    {
      OUTS (outf, "[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "] = ");
      OUTS (outf, pregs (reg));
    }
  else if (aop == 2 && sz == 1 && Z == 0 && W == 1)
    {
      OUTS (outf, "W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "] = ");
      OUTS (outf, dregs (reg));
    }
  else if (aop == 2 && sz == 2 && Z == 0 && W == 1)
    {
      OUTS (outf, "B[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, "] = ");
      OUTS (outf, dregs (reg));
    }
  else
    return 0;

  return 2;
}

static int
decode_LDSTiiFP_0 (TIword iw0, disassemble_info *outf)
{
  /* LDSTiiFP
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 0 | 1 | 1 | 1 | 0 |.W.|.offset............|.reg...........|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int reg = ((iw0 >> LDSTiiFP_reg_bits) & LDSTiiFP_reg_mask);
  int offset = ((iw0 >> LDSTiiFP_offset_bits) & LDSTiiFP_offset_mask);
  int W = ((iw0 >> LDSTiiFP_W_bits) & LDSTiiFP_W_mask);

  if (W == 0)
    {
      OUTS (outf, dpregs (reg));
      OUTS (outf, " = [FP ");
      OUTS (outf, negimm5s4 (offset));
      OUTS (outf, "]");
    }
  else if (W == 1)
    {
      OUTS (outf, "[FP ");
      OUTS (outf, negimm5s4 (offset));
      OUTS (outf, "] = ");
      OUTS (outf, dpregs (reg));
    }
  else
    return 0;

  return 2;
}

static int
decode_LDSTii_0 (TIword iw0, disassemble_info *outf)
{
  /* LDSTii
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 0 | 1 |.W.|.op....|.offset........|.ptr.......|.reg.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int reg = ((iw0 >> LDSTii_reg_bit) & LDSTii_reg_mask);
  int ptr = ((iw0 >> LDSTii_ptr_bit) & LDSTii_ptr_mask);
  int offset = ((iw0 >> LDSTii_offset_bit) & LDSTii_offset_mask);
  int op = ((iw0 >> LDSTii_op_bit) & LDSTii_op_mask);
  int W = ((iw0 >> LDSTii_W_bit) & LDSTii_W_mask);

  if (W == 0 && op == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, uimm4s4 (offset));
      OUTS (outf, "]");
    }
  else if (W == 0 && op == 1)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, uimm4s2 (offset));
      OUTS (outf, "] (Z)");
    }
  else if (W == 0 && op == 2)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, uimm4s2 (offset));
      OUTS (outf, "] (X)");
    }
  else if (W == 0 && op == 3)
    {
      OUTS (outf, pregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, uimm4s4 (offset));
      OUTS (outf, "]");
    }
  else if (W == 1 && op == 0)
    {
      OUTS (outf, "[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, uimm4s4 (offset));
      OUTS (outf, "] = ");
      OUTS (outf, dregs (reg));
    }
  else if (W == 1 && op == 1)
    {
      OUTS (outf, "W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, uimm4s2 (offset));
      OUTS (outf, "] = ");
      OUTS (outf, dregs (reg));
    }
  else if (W == 1 && op == 3)
    {
      OUTS (outf, "[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, uimm4s4 (offset));
      OUTS (outf, "] = ");
      OUTS (outf, pregs (reg));
    }
  else
    return 0;

  return 2;
}

static int
decode_LoopSetup_0 (TIword iw0, TIword iw1, bfd_vma pc, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* LoopSetup
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 |.rop...|.c.|.soffset.......|
     |.reg...........| - | - |.eoffset...............................|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int c   = ((iw0 >> (LoopSetup_c_bits - 16)) & LoopSetup_c_mask);
  int reg = ((iw1 >> LoopSetup_reg_bits) & LoopSetup_reg_mask);
  int rop = ((iw0 >> (LoopSetup_rop_bits - 16)) & LoopSetup_rop_mask);
  int soffset = ((iw0 >> (LoopSetup_soffset_bits - 16)) & LoopSetup_soffset_mask);
  int eoffset = ((iw1 >> LoopSetup_eoffset_bits) & LoopSetup_eoffset_mask);

  if (priv->parallel)
    return 0;

  if (reg > 7)
    return 0;

  if (rop == 0)
    {
      OUTS (outf, "LSETUP");
      OUTS (outf, "(0x");
      OUTS (outf, pcrel4 (soffset));
      OUTS (outf, ", 0x");
      OUTS (outf, lppcrel10 (eoffset));
      OUTS (outf, ") ");
      OUTS (outf, counters (c));
    }
  else if (rop == 1)
    {
      OUTS (outf, "LSETUP");
      OUTS (outf, "(0x");
      OUTS (outf, pcrel4 (soffset));
      OUTS (outf, ", 0x");
      OUTS (outf, lppcrel10 (eoffset));
      OUTS (outf, ") ");
      OUTS (outf, counters (c));
      OUTS (outf, " = ");
      OUTS (outf, pregs (reg));
    }
  else if (rop == 3)
    {
      OUTS (outf, "LSETUP");
      OUTS (outf, "(0x");
      OUTS (outf, pcrel4 (soffset));
      OUTS (outf, ", 0x");
      OUTS (outf, lppcrel10 (eoffset));
      OUTS (outf, ") ");
      OUTS (outf, counters (c));
      OUTS (outf, " = ");
      OUTS (outf, pregs (reg));
      OUTS (outf, " >> 0x1");
    }
  else
    return 0;

  return 4;
}

static int
decode_LDIMMhalf_0 (TIword iw0, TIword iw1, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* LDIMMhalf
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 |.Z.|.H.|.S.|.grp...|.reg.......|
     |.hword.........................................................|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int H = ((iw0 >> (LDIMMhalf_H_bits - 16)) & LDIMMhalf_H_mask);
  int Z = ((iw0 >> (LDIMMhalf_Z_bits - 16)) & LDIMMhalf_Z_mask);
  int S = ((iw0 >> (LDIMMhalf_S_bits - 16)) & LDIMMhalf_S_mask);
  int reg = ((iw0 >> (LDIMMhalf_reg_bits - 16)) & LDIMMhalf_reg_mask);
  int grp = ((iw0 >> (LDIMMhalf_grp_bits - 16)) & LDIMMhalf_grp_mask);
  int hword = ((iw1 >> LDIMMhalf_hword_bits) & LDIMMhalf_hword_mask);

  bu32 *pval = get_allreg (grp, reg);

  if (priv->parallel)
    return 0;

  /* Since we don't have 32-bit immediate loads, we allow the disassembler
     to combine them, so it prints out the right values.
     Here we keep track of the registers.  */
  if (H == 0 && S == 1 && Z == 0)
    {
      /* regs = imm16 (x) */
      *pval = imm16_val (hword);
      if (hword & 0x8000)
  *pval |= 0xFFFF0000;
      else
  *pval &= 0xFFFF;
    }
  else if (H == 0 && S == 0 && Z == 1)
    {
      /* regs = luimm16 (Z) */
      *pval = luimm16_val (hword);
      *pval &= 0xFFFF;
    }
  else if (H == 0 && S == 0 && Z == 0)
    {
      /* regs_lo = luimm16 */
      *pval &= 0xFFFF0000;
      *pval |= luimm16_val (hword);
    }
  else if (H == 1 && S == 0 && Z == 0)
    {
      /* regs_hi = huimm16 */
      *pval &= 0xFFFF;
      *pval |= luimm16_val (hword) << 16;
    }

  /* Here we do the disassembly */
  if (grp == 0 && H == 0 && S == 0 && Z == 0)
    {
      OUTS (outf, dregs_lo (reg));
      OUTS (outf, " = ");
      OUTS (outf, uimm16 (hword));
    }
  else if (grp == 0 && H == 1 && S == 0 && Z == 0)
    {
      OUTS (outf, dregs_hi (reg));
      OUTS (outf, " = ");
      OUTS (outf, uimm16 (hword));
    }
  else if (grp == 0 && H == 0 && S == 1 && Z == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = ");
      OUTS (outf, imm16 (hword));
      OUTS (outf, " (X)");
    }
  else if (H == 0 && S == 1 && Z == 0)
    {
      OUTS (outf, regs (reg, grp));
      OUTS (outf, " = ");
      OUTS (outf, imm16 (hword));
      OUTS (outf, " (X)");
    }
  else if (H == 0 && S == 0 && Z == 1)
    {
      OUTS (outf, regs (reg, grp));
      OUTS (outf, " = ");
      OUTS (outf, uimm16 (hword));
      OUTS (outf, " (Z)");
    }
  else if (H == 0 && S == 0 && Z == 0)
    {
      OUTS (outf, regs_lo (reg, grp));
      OUTS (outf, " = ");
      OUTS (outf, uimm16 (hword));
    }
  else if (H == 1 && S == 0 && Z == 0)
    {
      OUTS (outf, regs_hi (reg, grp));
      OUTS (outf, " = ");
      OUTS (outf, uimm16 (hword));
    }
  else
    return 0;

  /* And we print out the 32-bit value if it is a pointer.  */
  if (S == 0 && Z == 0)
    {
      OUTS (outf, ";\t\t/* (");
      OUTS (outf, imm16d (hword));
      OUTS (outf, ")\t");

      /* If it is an MMR, don't print the symbol.  */
      if (*pval < 0xFFC00000 && grp == 1)
  {
    OUTS (outf, regs (reg, grp));
    OUTS (outf, "=0x");
    OUTS (outf, huimm32e (*pval));
  }
      else
  {
    OUTS (outf, regs (reg, grp));
    OUTS (outf, "=0x");
    OUTS (outf, huimm32e (*pval));
    OUTS (outf, "(");
    OUTS (outf, imm32 (*pval));
    OUTS (outf, ")");
  }

      OUTS (outf, " */");
      priv->comment = true;
    }
  if (S == 1 || Z == 1)
    {
      OUTS (outf, ";\t\t/*\t\t");
      OUTS (outf, regs (reg, grp));
      OUTS (outf, "=0x");
      OUTS (outf, huimm32e (*pval));
      OUTS (outf, "(");
      OUTS (outf, imm32 (*pval));
      OUTS (outf, ") */");
      priv->comment = true;
    }
  return 4;
}

static int
decode_CALLa_0 (TIword iw0, TIword iw1, bfd_vma pc, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* CALLa
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 1 | 1 | 0 | 0 | 0 | 1 |.S.|.msw...........................|
     |.lsw...........................................................|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int S   = ((iw0 >> (CALLa_S_bits - 16)) & CALLa_S_mask);
  int lsw = ((iw1 >> 0) & 0xffff);
  int msw = ((iw0 >> 0) & 0xff);

  if (priv->parallel)
    return 0;

  if (S == 1)
    OUTS (outf, "CALL 0x");
  else if (S == 0)
    OUTS (outf, "JUMP.L 0x");
  else
    return 0;

  OUTS (outf, pcrel24 (((msw) << 16) | (lsw)));
  return 4;
}

static int
decode_LDSTidxI_0 (TIword iw0, TIword iw1, disassemble_info *outf)
{
  /* LDSTidxI
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 1 | 1 | 0 | 0 | 1 |.W.|.Z.|.sz....|.ptr.......|.reg.......|
     |.offset........................................................|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int Z = ((iw0 >> (LDSTidxI_Z_bits - 16)) & LDSTidxI_Z_mask);
  int W = ((iw0 >> (LDSTidxI_W_bits - 16)) & LDSTidxI_W_mask);
  int sz = ((iw0 >> (LDSTidxI_sz_bits - 16)) & LDSTidxI_sz_mask);
  int reg = ((iw0 >> (LDSTidxI_reg_bits - 16)) & LDSTidxI_reg_mask);
  int ptr = ((iw0 >> (LDSTidxI_ptr_bits - 16)) & LDSTidxI_ptr_mask);
  int offset = ((iw1 >> LDSTidxI_offset_bits) & LDSTidxI_offset_mask);

  if (W == 0 && sz == 0 && Z == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, imm16s4 (offset));
      OUTS (outf, "]");
    }
  else if (W == 0 && sz == 0 && Z == 1)
    {
      OUTS (outf, pregs (reg));
      OUTS (outf, " = [");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, imm16s4 (offset));
      OUTS (outf, "]");
    }
  else if (W == 0 && sz == 1 && Z == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, imm16s2 (offset));
      OUTS (outf, "] (Z)");
    }
  else if (W == 0 && sz == 1 && Z == 1)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, imm16s2 (offset));
      OUTS (outf, "] (X)");
    }
  else if (W == 0 && sz == 2 && Z == 0)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = B[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, imm16 (offset));
      OUTS (outf, "] (Z)");
    }
  else if (W == 0 && sz == 2 && Z == 1)
    {
      OUTS (outf, dregs (reg));
      OUTS (outf, " = B[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, imm16 (offset));
      OUTS (outf, "] (X)");
    }
  else if (W == 1 && sz == 0 && Z == 0)
    {
      OUTS (outf, "[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, imm16s4 (offset));
      OUTS (outf, "] = ");
      OUTS (outf, dregs (reg));
    }
  else if (W == 1 && sz == 0 && Z == 1)
    {
      OUTS (outf, "[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, imm16s4 (offset));
      OUTS (outf, "] = ");
      OUTS (outf, pregs (reg));
    }
  else if (W == 1 && sz == 1 && Z == 0)
    {
      OUTS (outf, "W[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, imm16s2 (offset));
      OUTS (outf, "] = ");
      OUTS (outf, dregs (reg));
    }
  else if (W == 1 && sz == 2 && Z == 0)
    {
      OUTS (outf, "B[");
      OUTS (outf, pregs (ptr));
      OUTS (outf, " + ");
      OUTS (outf, imm16 (offset));
      OUTS (outf, "] = ");
      OUTS (outf, dregs (reg));
    }
  else
    return 0;

  return 4;
}

static int
decode_linkage_0 (TIword iw0, TIword iw1, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* linkage
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |.R.|
     |.framesize.....................................................|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int R = ((iw0 >> (Linkage_R_bits - 16)) & Linkage_R_mask);
  int framesize = ((iw1 >> Linkage_framesize_bits) & Linkage_framesize_mask);

  if (priv->parallel)
    return 0;

  if (R == 0)
    {
      OUTS (outf, "LINK ");
      OUTS (outf, uimm16s4 (framesize));
      OUTS (outf, ";\t\t/* (");
      OUTS (outf, uimm16s4d (framesize));
      OUTS (outf, ") */");
      priv->comment = true;
    }
  else if (R == 1)
    OUTS (outf, "UNLINK");
  else
    return 0;

  return 4;
}

static int
decode_dsp32mac_0 (TIword iw0, TIword iw1, disassemble_info *outf)
{
  /* dsp32mac
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 1 | 0 | 0 |.M.| 0 | 0 |.mmod..........|.MM|.P.|.w1|.op1...|
     |.h01|.h11|.w0|.op0...|.h00|.h10|.dst.......|.src0......|.src1..|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int op1  = ((iw0 >> (DSP32Mac_op1_bits - 16)) & DSP32Mac_op1_mask);
  int w1   = ((iw0 >> (DSP32Mac_w1_bits - 16)) & DSP32Mac_w1_mask);
  int P    = ((iw0 >> (DSP32Mac_p_bits - 16)) & DSP32Mac_p_mask);
  int MM   = ((iw0 >> (DSP32Mac_MM_bits - 16)) & DSP32Mac_MM_mask);
  int mmod = ((iw0 >> (DSP32Mac_mmod_bits - 16)) & DSP32Mac_mmod_mask);
  int w0   = ((iw1 >> DSP32Mac_w0_bits) & DSP32Mac_w0_mask);
  int src0 = ((iw1 >> DSP32Mac_src0_bits) & DSP32Mac_src0_mask);
  int src1 = ((iw1 >> DSP32Mac_src1_bits) & DSP32Mac_src1_mask);
  int dst  = ((iw1 >> DSP32Mac_dst_bits) & DSP32Mac_dst_mask);
  int h10  = ((iw1 >> DSP32Mac_h10_bits) & DSP32Mac_h10_mask);
  int h00  = ((iw1 >> DSP32Mac_h00_bits) & DSP32Mac_h00_mask);
  int op0  = ((iw1 >> DSP32Mac_op0_bits) & DSP32Mac_op0_mask);
  int h11  = ((iw1 >> DSP32Mac_h11_bits) & DSP32Mac_h11_mask);
  int h01  = ((iw1 >> DSP32Mac_h01_bits) & DSP32Mac_h01_mask);

  if (w0 == 0 && w1 == 0 && op1 == 3 && op0 == 3)
    return 0;

  if (op1 == 3 && MM)
    return 0;

  if ((w1 || w0) && mmod == M_W32)
    return 0;

  if (((1 << mmod) & (P ? 0x131b : 0x1b5f)) == 0)
    return 0;

  if (w1 == 1 || op1 != 3)
    {
      if (w1)
  OUTS (outf, P ? dregs (dst + 1) : dregs_hi (dst));

      if (op1 == 3)
  OUTS (outf, " = A1");
      else
  {
    if (w1)
      OUTS (outf, " = (");
    decode_macfunc (1, op1, h01, h11, src0, src1, outf);
    if (w1)
      OUTS (outf, ")");
  }

      if (w0 == 1 || op0 != 3)
  {
    if (MM)
      OUTS (outf, " (M)");
    OUTS (outf, ", ");
  }
    }

  if (w0 == 1 || op0 != 3)
    {
      /* Clear MM option since it only matters for MAC1, and if we made
         it this far, we've already shown it or we want to ignore it.  */
      MM = 0;

      if (w0)
  OUTS (outf, P ? dregs (dst) : dregs_lo (dst));

      if (op0 == 3)
  OUTS (outf, " = A0");
      else
  {
    if (w0)
      OUTS (outf, " = (");
    decode_macfunc (0, op0, h00, h10, src0, src1, outf);
    if (w0)
      OUTS (outf, ")");
  }
    }

  decode_optmode (mmod, MM, outf);

  return 4;
}

static int
decode_dsp32mult_0 (TIword iw0, TIword iw1, disassemble_info *outf)
{
  /* dsp32mult
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 1 | 0 | 0 |.M.| 0 | 1 |.mmod..........|.MM|.P.|.w1|.op1...|
     |.h01|.h11|.w0|.op0...|.h00|.h10|.dst.......|.src0......|.src1..|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int w1   = ((iw0 >> (DSP32Mac_w1_bits - 16)) & DSP32Mac_w1_mask);
  int P    = ((iw0 >> (DSP32Mac_p_bits - 16)) & DSP32Mac_p_mask);
  int MM   = ((iw0 >> (DSP32Mac_MM_bits - 16)) & DSP32Mac_MM_mask);
  int mmod = ((iw0 >> (DSP32Mac_mmod_bits - 16)) & DSP32Mac_mmod_mask);
  int w0   = ((iw1 >> DSP32Mac_w0_bits) & DSP32Mac_w0_mask);
  int src0 = ((iw1 >> DSP32Mac_src0_bits) & DSP32Mac_src0_mask);
  int src1 = ((iw1 >> DSP32Mac_src1_bits) & DSP32Mac_src1_mask);
  int dst  = ((iw1 >> DSP32Mac_dst_bits) & DSP32Mac_dst_mask);
  int h10  = ((iw1 >> DSP32Mac_h10_bits) & DSP32Mac_h10_mask);
  int h00  = ((iw1 >> DSP32Mac_h00_bits) & DSP32Mac_h00_mask);
  int h11  = ((iw1 >> DSP32Mac_h11_bits) & DSP32Mac_h11_mask);
  int h01  = ((iw1 >> DSP32Mac_h01_bits) & DSP32Mac_h01_mask);

  if (w1 == 0 && w0 == 0)
    return 0;

  if (((1 << mmod) & (P ? 0x313 : 0x1b57)) == 0)
    return 0;

  if (w1)
    {
      OUTS (outf, P ? dregs (dst + 1) : dregs_hi (dst));
      OUTS (outf, " = ");
      decode_multfunc (h01, h11, src0, src1, outf);

      if (w0)
  {
    if (MM)
      OUTS (outf, " (M)");
    MM = 0;
    OUTS (outf, ", ");
  }
    }

  if (w0)
    {
      OUTS (outf, P ? dregs (dst) : dregs_lo (dst));
      OUTS (outf, " = ");
      decode_multfunc (h00, h10, src0, src1, outf);
    }

  decode_optmode (mmod, MM, outf);
  return 4;
}

static int
decode_dsp32alu_0 (TIword iw0, TIword iw1, disassemble_info *outf)
{
  /* dsp32alu
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 1 | 0 | 0 |.M.| 1 | 0 | - | - | - |.HL|.aopcde............|
     |.aop...|.s.|.x.|.dst0......|.dst1......|.src0......|.src1......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int s    = ((iw1 >> DSP32Alu_s_bits) & DSP32Alu_s_mask);
  int x    = ((iw1 >> DSP32Alu_x_bits) & DSP32Alu_x_mask);
  int aop  = ((iw1 >> DSP32Alu_aop_bits) & DSP32Alu_aop_mask);
  int src0 = ((iw1 >> DSP32Alu_src0_bits) & DSP32Alu_src0_mask);
  int src1 = ((iw1 >> DSP32Alu_src1_bits) & DSP32Alu_src1_mask);
  int dst0 = ((iw1 >> DSP32Alu_dst0_bits) & DSP32Alu_dst0_mask);
  int dst1 = ((iw1 >> DSP32Alu_dst1_bits) & DSP32Alu_dst1_mask);
  int HL   = ((iw0 >> (DSP32Alu_HL_bits - 16)) & DSP32Alu_HL_mask);
  int aopcde = ((iw0 >> (DSP32Alu_aopcde_bits - 16)) & DSP32Alu_aopcde_mask);

  if (aop == 0 && aopcde == 9 && HL == 0 && s == 0)
    {
      OUTS (outf, "A0.L = ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (aop == 2 && aopcde == 9 && HL == 1 && s == 0)
    {
      OUTS (outf, "A1.H = ");
      OUTS (outf, dregs_hi (src0));
    }
  else if (aop == 2 && aopcde == 9 && HL == 0 && s == 0)
    {
      OUTS (outf, "A1.L = ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (aop == 0 && aopcde == 9 && HL == 1 && s == 0)
    {
      OUTS (outf, "A0.H = ");
      OUTS (outf, dregs_hi (src0));
    }
  else if (x == 1 && HL == 1 && aop == 3 && aopcde == 5)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " (RND20)");
    }
  else if (x == 1 && HL == 1 && aop == 2 && aopcde == 5)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " (RND20)");
    }
  else if (x == 0 && HL == 0 && aop == 1 && aopcde == 5)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " (RND12)");
    }
  else if (x == 0 && HL == 0 && aop == 0 && aopcde == 5)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " (RND12)");
    }
  else if (x == 1 && HL == 0 && aop == 3 && aopcde == 5)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " (RND20)");
    }
  else if (x == 0 && HL == 1 && aop == 0 && aopcde == 5)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " (RND12)");
    }
  else if (x == 1 && HL == 0 && aop == 2 && aopcde == 5)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " (RND20)");
    }
  else if (x == 0 && HL == 1 && aop == 1 && aopcde == 5)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " (RND12)");
    }
  else if (HL == 1 && aop == 0 && aopcde == 2)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs_lo (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 1 && aop == 1 && aopcde == 2)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs_hi (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 1 && aop == 2 && aopcde == 2)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_hi (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs_lo (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 1 && aop == 3 && aopcde == 2)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_hi (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs_hi (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 0 && aop == 0 && aopcde == 3)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs_lo (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 0 && aop == 1 && aopcde == 3)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs_hi (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 0 && aop == 3 && aopcde == 2)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_hi (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs_hi (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 1 && aop == 0 && aopcde == 3)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs_lo (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 1 && aop == 1 && aopcde == 3)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs_hi (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 1 && aop == 2 && aopcde == 3)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_hi (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs_lo (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 1 && aop == 3 && aopcde == 3)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_hi (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs_hi (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 0 && aop == 2 && aopcde == 2)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_hi (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs_lo (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 0 && aop == 1 && aopcde == 2)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs_hi (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 0 && aop == 2 && aopcde == 3)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_hi (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs_lo (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 0 && aop == 3 && aopcde == 3)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_hi (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs_hi (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 0 && aop == 0 && aopcde == 2)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs_lo (src1));
      amod1 (s, x, outf);
    }
  else if (aop == 0 && aopcde == 9 && s == 1)
    {
      OUTS (outf, "A0 = ");
      OUTS (outf, dregs (src0));
    }
  else if (aop == 3 && aopcde == 11 && s == 0)
    OUTS (outf, "A0 -= A1");

  else if (aop == 3 && aopcde == 11 && s == 1)
    OUTS (outf, "A0 -= A1 (W32)");

  else if (aop == 1 && aopcde == 22 && HL == 1)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = BYTEOP2P (");
      OUTS (outf, dregs (src0 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src1));
      OUTS (outf, ") (TH");
      if (s == 1)
  OUTS (outf, ", R)");
      else
  OUTS (outf, ")");
    }
  else if (aop == 1 && aopcde == 22 && HL == 0)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = BYTEOP2P (");
      OUTS (outf, dregs (src0 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src1));
      OUTS (outf, ") (TL");
      if (s == 1)
  OUTS (outf, ", R)");
      else
  OUTS (outf, ")");
    }
  else if (aop == 0 && aopcde == 22 && HL == 1)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = BYTEOP2P (");
      OUTS (outf, dregs (src0 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src1));
      OUTS (outf, ") (RNDH");
      if (s == 1)
  OUTS (outf, ", R)");
      else
  OUTS (outf, ")");
    }
  else if (aop == 0 && aopcde == 22 && HL == 0)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = BYTEOP2P (");
      OUTS (outf, dregs (src0 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src1));
      OUTS (outf, ") (RNDL");
      if (s == 1)
  OUTS (outf, ", R)");
      else
  OUTS (outf, ")");
    }
  else if (aop == 0 && s == 0 && aopcde == 8)
    OUTS (outf, "A0 = 0");

  else if (aop == 0 && s == 1 && aopcde == 8)
    OUTS (outf, "A0 = A0 (S)");

  else if (aop == 1 && s == 0 && aopcde == 8)
    OUTS (outf, "A1 = 0");

  else if (aop == 1 && s == 1 && aopcde == 8)
    OUTS (outf, "A1 = A1 (S)");

  else if (aop == 2 && s == 0 && aopcde == 8)
    OUTS (outf, "A1 = A0 = 0");

  else if (aop == 2 && s == 1 && aopcde == 8)
    OUTS (outf, "A1 = A1 (S), A0 = A0 (S)");

  else if (aop == 3 && s == 0 && aopcde == 8)
    OUTS (outf, "A0 = A1");

  else if (aop == 3 && s == 1 && aopcde == 8)
    OUTS (outf, "A1 = A0");

  else if (aop == 1 && aopcde == 9 && s == 0)
    {
      OUTS (outf, "A0.X = ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (aop == 1 && HL == 0 && aopcde == 11)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = (A0 += A1)");
    }
  else if (aop == 3 && HL == 0 && aopcde == 16)
    OUTS (outf, "A1 = ABS A1, A0 = ABS A0");

  else if (aop == 0 && aopcde == 23 && HL == 1)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = BYTEOP3P (");
      OUTS (outf, dregs (src0 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src1));
      OUTS (outf, ") (HI");
      if (s == 1)
  OUTS (outf, ", R)");
      else
  OUTS (outf, ")");
    }
  else if (aop == 3 && aopcde == 9 && s == 0)
    {
      OUTS (outf, "A1.X = ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (aop == 1 && HL == 1 && aopcde == 16)
    OUTS (outf, "A1 = ABS A1");

  else if (aop == 0 && HL == 1 && aopcde == 16)
    OUTS (outf, "A1 = ABS A0");

  else if (aop == 2 && aopcde == 9 && s == 1)
    {
      OUTS (outf, "A1 = ");
      OUTS (outf, dregs (src0));
    }
  else if (HL == 0 && aop == 3 && aopcde == 12)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " (RND)");
    }
  else if (aop == 1 && HL == 0 && aopcde == 16)
    OUTS (outf, "A0 = ABS A1");

  else if (aop == 0 && HL == 0 && aopcde == 16)
    OUTS (outf, "A0 = ABS A0");

  else if (aop == 3 && HL == 0 && aopcde == 15)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = -");
      OUTS (outf, dregs (src0));
      OUTS (outf, " (V)");
    }
  else if (aop == 3 && s == 1 && HL == 0 && aopcde == 7)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = -");
      OUTS (outf, dregs (src0));
      OUTS (outf, " (S)");
    }
  else if (aop == 3 && s == 0 && HL == 0 && aopcde == 7)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = -");
      OUTS (outf, dregs (src0));
      OUTS (outf, " (NS)");
    }
  else if (aop == 1 && HL == 1 && aopcde == 11)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = (A0 += A1)");
    }
  else if (aop == 2 && aopcde == 11 && s == 0)
    OUTS (outf, "A0 += A1");

  else if (aop == 2 && aopcde == 11 && s == 1)
    OUTS (outf, "A0 += A1 (W32)");

  else if (aop == 3 && HL == 0 && aopcde == 14)
    OUTS (outf, "A1 = -A1, A0 = -A0");

  else if (HL == 1 && aop == 3 && aopcde == 12)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " (RND)");
    }
  else if (aop == 0 && aopcde == 23 && HL == 0)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = BYTEOP3P (");
      OUTS (outf, dregs (src0 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src1));
      OUTS (outf, ") (LO");
      if (s == 1)
  OUTS (outf, ", R)");
      else
  OUTS (outf, ")");
    }
  else if (aop == 0 && HL == 0 && aopcde == 14)
    OUTS (outf, "A0 = -A0");

  else if (aop == 1 && HL == 0 && aopcde == 14)
    OUTS (outf, "A0 = -A1");

  else if (aop == 0 && HL == 1 && aopcde == 14)
    OUTS (outf, "A1 = -A0");

  else if (aop == 1 && HL == 1 && aopcde == 14)
    OUTS (outf, "A1 = -A1");

  else if (aop == 0 && aopcde == 12)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = SIGN (");
      OUTS (outf, dregs_hi (src0));
      OUTS (outf, ") * ");
      OUTS (outf, dregs_hi (src1));
      OUTS (outf, " + SIGN (");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, ") * ");
      OUTS (outf, dregs_lo (src1));
    }
  else if (aop == 2 && aopcde == 0)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " -|+ ");
      OUTS (outf, dregs (src1));
      amod0 (s, x, outf);
    }
  else if (aop == 1 && aopcde == 12)
    {
      OUTS (outf, dregs (dst1));
      OUTS (outf, " = A1.L + A1.H, ");
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = A0.L + A0.H");
    }
  else if (aop == 2 && aopcde == 4)
    {
      OUTS (outf, dregs (dst1));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs (src1));
      amod1 (s, x, outf);
    }
  else if (HL == 0 && aopcde == 1)
    {
      OUTS (outf, dregs (dst1));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " +|+ ");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " -|- ");
      OUTS (outf, dregs (src1));
      amod0amod2 (s, x, aop, outf);
    }
  else if (aop == 0 && aopcde == 11)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = (A0 += A1)");
    }
  else if (aop == 0 && aopcde == 10)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = A0.X");
    }
  else if (aop == 1 && aopcde == 10)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = A1.X");
    }
  else if (aop == 1 && aopcde == 0)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " +|- ");
      OUTS (outf, dregs (src1));
      amod0 (s, x, outf);
    }
  else if (aop == 3 && aopcde == 0)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " -|- ");
      OUTS (outf, dregs (src1));
      amod0 (s, x, outf);
    }
  else if (aop == 1 && aopcde == 4)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " - ");
      OUTS (outf, dregs (src1));
      amod1 (s, x, outf);
    }
  else if (aop == 0 && aopcde == 17)
    {
      OUTS (outf, dregs (dst1));
      OUTS (outf, " = A1 + A0, ");
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = A1 - A0");
      amod1 (s, x, outf);
    }
  else if (aop == 1 && aopcde == 17)
    {
      OUTS (outf, dregs (dst1));
      OUTS (outf, " = A0 + A1, ");
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = A0 - A1");
      amod1 (s, x, outf);
    }
  else if (aop == 0 && aopcde == 18)
    {
      OUTS (outf, "SAA (");
      OUTS (outf, dregs (src0 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src1));
      OUTS (outf, ")");
      aligndir (s, outf);
    }
  else if (aop == 3 && aopcde == 18)
    OUTS (outf, "DISALGNEXCPT");

  else if (aop == 0 && aopcde == 20)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = BYTEOP1P (");
      OUTS (outf, dregs (src0 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src1));
      OUTS (outf, ")");
      aligndir (s, outf);
    }
  else if (aop == 1 && aopcde == 20)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = BYTEOP1P (");
      OUTS (outf, dregs (src0 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src1));
      OUTS (outf, ") (T");
      if (s == 1)
  OUTS (outf, ", R)");
      else
  OUTS (outf, ")");
    }
  else if (aop == 0 && aopcde == 21)
    {
      OUTS (outf, "(");
      OUTS (outf, dregs (dst1));
      OUTS (outf, ", ");
      OUTS (outf, dregs (dst0));
      OUTS (outf, ") = BYTEOP16P (");
      OUTS (outf, dregs (src0 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src1));
      OUTS (outf, ")");
      aligndir (s, outf);
    }
  else if (aop == 1 && aopcde == 21)
    {
      OUTS (outf, "(");
      OUTS (outf, dregs (dst1));
      OUTS (outf, ", ");
      OUTS (outf, dregs (dst0));
      OUTS (outf, ") = BYTEOP16M (");
      OUTS (outf, dregs (src0 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src1));
      OUTS (outf, ")");
      aligndir (s, outf);
    }
  else if (aop == 2 && aopcde == 7)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ABS ");
      OUTS (outf, dregs (src0));
    }
  else if (aop == 1 && aopcde == 7)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = MIN (");
      OUTS (outf, dregs (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1));
      OUTS (outf, ")");
    }
  else if (aop == 0 && aopcde == 7)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = MAX (");
      OUTS (outf, dregs (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1));
      OUTS (outf, ")");
    }
  else if (aop == 2 && aopcde == 6)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ABS ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " (V)");
    }
  else if (aop == 1 && aopcde == 6)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = MIN (");
      OUTS (outf, dregs (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1));
      OUTS (outf, ") (V)");
    }
  else if (aop == 0 && aopcde == 6)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = MAX (");
      OUTS (outf, dregs (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1));
      OUTS (outf, ") (V)");
    }
  else if (HL == 1 && aopcde == 1)
    {
      OUTS (outf, dregs (dst1));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " +|- ");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " -|+ ");
      OUTS (outf, dregs (src1));
      amod0amod2 (s, x, aop, outf);
    }
  else if (aop == 0 && aopcde == 4)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " + ");
      OUTS (outf, dregs (src1));
      amod1 (s, x, outf);
    }
  else if (aop == 0 && aopcde == 0)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " +|+ ");
      OUTS (outf, dregs (src1));
      amod0 (s, x, outf);
    }
  else if (aop == 0 && aopcde == 24)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = BYTEPACK (");
      OUTS (outf, dregs (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1));
      OUTS (outf, ")");
    }
  else if (aop == 1 && aopcde == 24)
    {
      OUTS (outf, "(");
      OUTS (outf, dregs (dst1));
      OUTS (outf, ", ");
      OUTS (outf, dregs (dst0));
      OUTS (outf, ") = BYTEUNPACK ");
      OUTS (outf, dregs (src0 + 1));
      OUTS (outf, ":");
      OUTS (outf, imm5d (src0));
      aligndir (s, outf);
    }
  else if (aopcde == 13)
    {
      OUTS (outf, "(");
      OUTS (outf, dregs (dst1));
      OUTS (outf, ", ");
      OUTS (outf, dregs (dst0));
      OUTS (outf, ") = SEARCH ");
      OUTS (outf, dregs (src0));
      OUTS (outf, " (");
      searchmod (aop, outf);
      OUTS (outf, ")");
    }
  else
    return 0;

  return 4;
}

static int
decode_dsp32shift_0 (TIword iw0, TIword iw1, disassemble_info *outf)
{
  /* dsp32shift
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 1 | 0 | 0 |.M.| 1 | 1 | 0 | 0 | - | - |.sopcde............|
     |.sop...|.HLs...|.dst0......| - | - | - |.src0......|.src1......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int HLs  = ((iw1 >> DSP32Shift_HLs_bits) & DSP32Shift_HLs_mask);
  int sop  = ((iw1 >> DSP32Shift_sop_bits) & DSP32Shift_sop_mask);
  int src0 = ((iw1 >> DSP32Shift_src0_bits) & DSP32Shift_src0_mask);
  int src1 = ((iw1 >> DSP32Shift_src1_bits) & DSP32Shift_src1_mask);
  int dst0 = ((iw1 >> DSP32Shift_dst0_bits) & DSP32Shift_dst0_mask);
  int sopcde = ((iw0 >> (DSP32Shift_sopcde_bits - 16)) & DSP32Shift_sopcde_mask);
  const char *acc01 = (HLs & 1) == 0 ? "A0" : "A1";

  if (HLs == 0 && sop == 0 && sopcde == 0)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ASHIFT ");
      OUTS (outf, dregs_lo (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (HLs == 1 && sop == 0 && sopcde == 0)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ASHIFT ");
      OUTS (outf, dregs_hi (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (HLs == 2 && sop == 0 && sopcde == 0)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ASHIFT ");
      OUTS (outf, dregs_lo (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (HLs == 3 && sop == 0 && sopcde == 0)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ASHIFT ");
      OUTS (outf, dregs_hi (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (HLs == 0 && sop == 1 && sopcde == 0)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ASHIFT ");
      OUTS (outf, dregs_lo (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " (S)");
    }
  else if (HLs == 1 && sop == 1 && sopcde == 0)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ASHIFT ");
      OUTS (outf, dregs_hi (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " (S)");
    }
  else if (HLs == 2 && sop == 1 && sopcde == 0)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ASHIFT ");
      OUTS (outf, dregs_lo (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " (S)");
    }
  else if (HLs == 3 && sop == 1 && sopcde == 0)
    {
      OUTS (outf, dregs_hi (dst0));
      OUTS (outf, " = ASHIFT ");
      OUTS (outf, dregs_hi (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " (S)");
    }
  else if (sop == 2 && sopcde == 0)
    {
      OUTS (outf, (HLs & 2) == 0 ? dregs_lo (dst0) : dregs_hi (dst0));
      OUTS (outf, " = LSHIFT ");
      OUTS (outf, (HLs & 1) == 0 ? dregs_lo (src1) : dregs_hi (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (sop == 0 && sopcde == 3)
    {
      OUTS (outf, acc01);
      OUTS (outf, " = ASHIFT ");
      OUTS (outf, acc01);
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (sop == 1 && sopcde == 3)
    {
      OUTS (outf, acc01);
      OUTS (outf, " = LSHIFT ");
      OUTS (outf, acc01);
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (sop == 2 && sopcde == 3)
    {
      OUTS (outf, acc01);
      OUTS (outf, " = ROT ");
      OUTS (outf, acc01);
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (sop == 3 && sopcde == 3)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ROT ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (sop == 1 && sopcde == 1)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ASHIFT ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " (V, S)");
    }
  else if (sop == 0 && sopcde == 1)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ASHIFT ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " (V)");
    }
  else if (sop == 0 && sopcde == 2)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ASHIFT ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (sop == 1 && sopcde == 2)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ASHIFT ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " (S)");
    }
  else if (sop == 2 && sopcde == 2)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = LSHIFT ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (sop == 3 && sopcde == 2)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ROT ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
    }
  else if (sop == 2 && sopcde == 1)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = LSHIFT ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " BY ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, " (V)");
    }
  else if (sop == 0 && sopcde == 4)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = PACK (");
      OUTS (outf, dregs_lo (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, ")");
    }
  else if (sop == 1 && sopcde == 4)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = PACK (");
      OUTS (outf, dregs_lo (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs_hi (src0));
      OUTS (outf, ")");
    }
  else if (sop == 2 && sopcde == 4)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = PACK (");
      OUTS (outf, dregs_hi (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, ")");
    }
  else if (sop == 3 && sopcde == 4)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = PACK (");
      OUTS (outf, dregs_hi (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs_hi (src0));
      OUTS (outf, ")");
    }
  else if (sop == 0 && sopcde == 5)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = SIGNBITS ");
      OUTS (outf, dregs (src1));
    }
  else if (sop == 1 && sopcde == 5)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = SIGNBITS ");
      OUTS (outf, dregs_lo (src1));
    }
  else if (sop == 2 && sopcde == 5)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = SIGNBITS ");
      OUTS (outf, dregs_hi (src1));
    }
  else if (sop == 0 && sopcde == 6)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = SIGNBITS A0");
    }
  else if (sop == 1 && sopcde == 6)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = SIGNBITS A1");
    }
  else if (sop == 3 && sopcde == 6)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = ONES ");
      OUTS (outf, dregs (src1));
    }
  else if (sop == 0 && sopcde == 7)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = EXPADJ (");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, ")");
    }
  else if (sop == 1 && sopcde == 7)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = EXPADJ (");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, ") (V)");
    }
  else if (sop == 2 && sopcde == 7)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = EXPADJ (");
      OUTS (outf, dregs_lo (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, ")");
    }
  else if (sop == 3 && sopcde == 7)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = EXPADJ (");
      OUTS (outf, dregs_hi (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, ")");
    }
  else if (sop == 0 && sopcde == 8)
    {
      OUTS (outf, "BITMUX (");
      OUTS (outf, dregs (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", A0) (ASR)");
    }
  else if (sop == 1 && sopcde == 8)
    {
      OUTS (outf, "BITMUX (");
      OUTS (outf, dregs (src0));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", A0) (ASL)");
    }
  else if (sop == 0 && sopcde == 9)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = VIT_MAX (");
      OUTS (outf, dregs (src1));
      OUTS (outf, ") (ASL)");
    }
  else if (sop == 1 && sopcde == 9)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = VIT_MAX (");
      OUTS (outf, dregs (src1));
      OUTS (outf, ") (ASR)");
    }
  else if (sop == 2 && sopcde == 9)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = VIT_MAX (");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src0));
      OUTS (outf, ") (ASL)");
    }
  else if (sop == 3 && sopcde == 9)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = VIT_MAX (");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src0));
      OUTS (outf, ") (ASR)");
    }
  else if (sop == 0 && sopcde == 10)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = EXTRACT (");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, ") (Z)");
    }
  else if (sop == 1 && sopcde == 10)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = EXTRACT (");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs_lo (src0));
      OUTS (outf, ") (X)");
    }
  else if (sop == 2 && sopcde == 10)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = DEPOSIT (");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src0));
      OUTS (outf, ")");
    }
  else if (sop == 3 && sopcde == 10)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = DEPOSIT (");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src0));
      OUTS (outf, ") (X)");
    }
  else if (sop == 0 && sopcde == 11)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = CC = BXORSHIFT (A0, ");
      OUTS (outf, dregs (src0));
      OUTS (outf, ")");
    }
  else if (sop == 1 && sopcde == 11)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = CC = BXOR (A0, ");
      OUTS (outf, dregs (src0));
      OUTS (outf, ")");
    }
  else if (sop == 0 && sopcde == 12)
    OUTS (outf, "A0 = BXORSHIFT (A0, A1, CC)");

  else if (sop == 1 && sopcde == 12)
    {
      OUTS (outf, dregs_lo (dst0));
      OUTS (outf, " = CC = BXOR (A0, A1, CC)");
    }
  else if (sop == 0 && sopcde == 13)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ALIGN8 (");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src0));
      OUTS (outf, ")");
    }
  else if (sop == 1 && sopcde == 13)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ALIGN16 (");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src0));
      OUTS (outf, ")");
    }
  else if (sop == 2 && sopcde == 13)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ALIGN24 (");
      OUTS (outf, dregs (src1));
      OUTS (outf, ", ");
      OUTS (outf, dregs (src0));
      OUTS (outf, ")");
    }
  else
    return 0;

  return 4;
}

static int
decode_dsp32shiftimm_0 (TIword iw0, TIword iw1, disassemble_info *outf)
{
  /* dsp32shiftimm
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 1 | 0 | 0 |.M.| 1 | 1 | 0 | 1 | - | - |.sopcde............|
     |.sop...|.HLs...|.dst0......|.immag.................|.src1......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int src1     = ((iw1 >> DSP32ShiftImm_src1_bits) & DSP32ShiftImm_src1_mask);
  int sop      = ((iw1 >> DSP32ShiftImm_sop_bits) & DSP32ShiftImm_sop_mask);
  int bit8     = ((iw1 >> 8) & 0x1);
  int immag    = ((iw1 >> DSP32ShiftImm_immag_bits) & DSP32ShiftImm_immag_mask);
  int newimmag = (-(iw1 >> DSP32ShiftImm_immag_bits) & DSP32ShiftImm_immag_mask);
  int dst0     = ((iw1 >> DSP32ShiftImm_dst0_bits) & DSP32ShiftImm_dst0_mask);
  int sopcde   = ((iw0 >> (DSP32ShiftImm_sopcde_bits - 16)) & DSP32ShiftImm_sopcde_mask);
  int HLs      = ((iw1 >> DSP32ShiftImm_HLs_bits) & DSP32ShiftImm_HLs_mask);

  if (sop == 0 && sopcde == 0)
    {
      OUTS (outf, (HLs & 2) ? dregs_hi (dst0) : dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, (HLs & 1) ? dregs_hi (src1) : dregs_lo (src1));
      OUTS (outf, " >>> ");
      OUTS (outf, uimm4 (newimmag));
    }
  else if (sop == 1 && sopcde == 0 && bit8 == 0)
    {
      OUTS (outf, (HLs & 2) ? dregs_hi (dst0) : dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, (HLs & 1) ? dregs_hi (src1) : dregs_lo (src1));
      OUTS (outf, " << ");
      OUTS (outf, uimm4 (immag));
      OUTS (outf, " (S)");
    }
  else if (sop == 1 && sopcde == 0 && bit8 == 1)
    {
      OUTS (outf, (HLs & 2) ? dregs_hi (dst0) : dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, (HLs & 1) ? dregs_hi (src1) : dregs_lo (src1));
      OUTS (outf, " >>> ");
      OUTS (outf, uimm4 (newimmag));
      OUTS (outf, " (S)");
    }
  else if (sop == 2 && sopcde == 0 && bit8 == 0)
    {
      OUTS (outf, (HLs & 2) ? dregs_hi (dst0) : dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, (HLs & 1) ? dregs_hi (src1) : dregs_lo (src1));
      OUTS (outf, " << ");
      OUTS (outf, uimm4 (immag));
    }
  else if (sop == 2 && sopcde == 0 && bit8 == 1)
    {
      OUTS (outf, (HLs & 2) ? dregs_hi (dst0) : dregs_lo (dst0));
      OUTS (outf, " = ");
      OUTS (outf, (HLs & 1) ? dregs_hi (src1) : dregs_lo (src1));
      OUTS (outf, " >> ");
      OUTS (outf, uimm4 (newimmag));
    }
  else if (sop == 2 && sopcde == 3 && HLs == 1)
    {
      OUTS (outf, "A1 = ROT A1 BY ");
      OUTS (outf, imm6 (immag));
    }
  else if (sop == 0 && sopcde == 3 && HLs == 0 && bit8 == 0)
    {
      OUTS (outf, "A0 = A0 << ");
      OUTS (outf, uimm5 (immag));
    }
  else if (sop == 0 && sopcde == 3 && HLs == 0 && bit8 == 1)
    {
      OUTS (outf, "A0 = A0 >>> ");
      OUTS (outf, uimm5 (newimmag));
    }
  else if (sop == 0 && sopcde == 3 && HLs == 1 && bit8 == 0)
    {
      OUTS (outf, "A1 = A1 << ");
      OUTS (outf, uimm5 (immag));
    }
  else if (sop == 0 && sopcde == 3 && HLs == 1 && bit8 == 1)
    {
      OUTS (outf, "A1 = A1 >>> ");
      OUTS (outf, uimm5 (newimmag));
    }
  else if (sop == 1 && sopcde == 3 && HLs == 0)
    {
      OUTS (outf, "A0 = A0 >> ");
      OUTS (outf, uimm5 (newimmag));
    }
  else if (sop == 1 && sopcde == 3 && HLs == 1)
    {
      OUTS (outf, "A1 = A1 >> ");
      OUTS (outf, uimm5 (newimmag));
    }
  else if (sop == 2 && sopcde == 3 && HLs == 0)
    {
      OUTS (outf, "A0 = ROT A0 BY ");
      OUTS (outf, imm6 (immag));
    }
  else if (sop == 1 && sopcde == 1 && bit8 == 0)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " << ");
      OUTS (outf, uimm5 (immag));
      OUTS (outf, " (V, S)");
    }
  else if (sop == 1 && sopcde == 1 && bit8 == 1)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " >>> ");
      OUTS (outf, imm5 (-immag));
      OUTS (outf, " (V, S)");
    }
  else if (sop == 2 && sopcde == 1 && bit8 == 1)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " >> ");
      OUTS (outf, uimm5 (newimmag));
      OUTS (outf, " (V)");
    }
  else if (sop == 2 && sopcde == 1 && bit8 == 0)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " << ");
      OUTS (outf, imm5 (immag));
      OUTS (outf, " (V)");
    }
  else if (sop == 0 && sopcde == 1)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " >>> ");
      OUTS (outf, uimm5 (newimmag));
      OUTS (outf, " (V)");
    }
  else if (sop == 1 && sopcde == 2)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " << ");
      OUTS (outf, uimm5 (immag));
      OUTS (outf, " (S)");
    }
  else if (sop == 2 && sopcde == 2 && bit8 == 1)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " >> ");
      OUTS (outf, uimm5 (newimmag));
    }
  else if (sop == 2 && sopcde == 2 && bit8 == 0)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " << ");
      OUTS (outf, uimm5 (immag));
    }
  else if (sop == 3 && sopcde == 2)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ROT ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " BY ");
      OUTS (outf, imm6 (immag));
    }
  else if (sop == 0 && sopcde == 2)
    {
      OUTS (outf, dregs (dst0));
      OUTS (outf, " = ");
      OUTS (outf, dregs (src1));
      OUTS (outf, " >>> ");
      OUTS (outf, uimm5 (newimmag));
    }
  else
    return 0;

  return 4;
}

static int
decode_pseudoDEBUG_0 (TIword iw0, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* pseudoDEBUG
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 |.fn....|.grp.......|.reg.......|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int fn  = ((iw0 >> PseudoDbg_fn_bits) & PseudoDbg_fn_mask);
  int grp = ((iw0 >> PseudoDbg_grp_bits) & PseudoDbg_grp_mask);
  int reg = ((iw0 >> PseudoDbg_reg_bits) & PseudoDbg_reg_mask);

  if (priv->parallel)
    return 0;

  if (reg == 0 && fn == 3)
    OUTS (outf, "DBG A0");

  else if (reg == 1 && fn == 3)
    OUTS (outf, "DBG A1");

  else if (reg == 3 && fn == 3)
    OUTS (outf, "ABORT");

  else if (reg == 4 && fn == 3)
    OUTS (outf, "HLT");

  else if (reg == 5 && fn == 3)
    OUTS (outf, "DBGHALT");

  else if (reg == 6 && fn == 3)
    {
      OUTS (outf, "DBGCMPLX (");
      OUTS (outf, dregs (grp));
      OUTS (outf, ")");
    }
  else if (reg == 7 && fn == 3)
    OUTS (outf, "DBG");

  else if (grp == 0 && fn == 2)
    {
      OUTS (outf, "OUTC ");
      OUTS (outf, dregs (reg));
    }
  else if (fn == 0)
    {
      OUTS (outf, "DBG ");
      OUTS (outf, allregs (reg, grp));
    }
  else if (fn == 1)
    {
      OUTS (outf, "PRNT ");
      OUTS (outf, allregs (reg, grp));
    }
  else
    return 0;

  return 2;
}

static int
decode_pseudoOChar_0 (TIword iw0, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* psedoOChar
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 |.ch............................|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int ch = ((iw0 >> PseudoChr_ch_bits) & PseudoChr_ch_mask);

  if (priv->parallel)
    return 0;

  OUTS (outf, "OUTC ");
  OUTS (outf, uimm8 (ch));

  return 2;
}

static int
decode_pseudodbg_assert_0 (TIword iw0, TIword iw1, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  /* pseudodbg_assert
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+
     | 1 | 1 | 1 | 1 | 0 | - | - | - | dbgop |.grp.......|.regtest...|
     |.expected......................................................|
     +---+---+---+---|---+---+---+---|---+---+---+---|---+---+---+---+  */
  int expected = ((iw1 >> PseudoDbg_Assert_expected_bits) & PseudoDbg_Assert_expected_mask);
  int dbgop    = ((iw0 >> (PseudoDbg_Assert_dbgop_bits - 16)) & PseudoDbg_Assert_dbgop_mask);
  int grp      = ((iw0 >> (PseudoDbg_Assert_grp_bits - 16)) & PseudoDbg_Assert_grp_mask);
  int regtest  = ((iw0 >> (PseudoDbg_Assert_regtest_bits - 16)) & PseudoDbg_Assert_regtest_mask);

  if (priv->parallel)
    return 0;

  if (dbgop == 0)
    {
      OUTS (outf, "DBGA (");
      OUTS (outf, regs_lo (regtest, grp));
      OUTS (outf, ", ");
      OUTS (outf, uimm16 (expected));
      OUTS (outf, ")");
    }
  else if (dbgop == 1)
    {
      OUTS (outf, "DBGA (");
      OUTS (outf, regs_hi (regtest, grp));
      OUTS (outf, ", ");
      OUTS (outf, uimm16 (expected));
      OUTS (outf, ")");
    }
  else if (dbgop == 2)
    {
      OUTS (outf, "DBGAL (");
      OUTS (outf, allregs (regtest, grp));
      OUTS (outf, ", ");
      OUTS (outf, uimm16 (expected));
      OUTS (outf, ")");
    }
  else if (dbgop == 3)
    {
      OUTS (outf, "DBGAH (");
      OUTS (outf, allregs (regtest, grp));
      OUTS (outf, ", ");
      OUTS (outf, uimm16 (expected));
      OUTS (outf, ")");
    }
  else
    return 0;
  return 4;
}

static int
ifetch (bfd_vma pc, disassemble_info *outf, TIword *iw)
{
  bfd_byte buf[2];
  int status;

  status = (*outf->read_memory_func) (pc, buf, 2, outf);
  if (status != 0)
    {
      (*outf->memory_error_func) (status, pc, outf);
      return -1;
    }

  *iw = bfd_getl16 (buf);
  return 0;
}

static int
_print_insn_bfin (bfd_vma pc, disassemble_info *outf)
{
  struct private *priv = outf->private_data;
  TIword iw0;
  TIword iw1;
  int rv = 0;

  /* The PC must be 16-bit aligned.  */
  if (pc & 1)
    {
      OUTS (outf, "ILLEGAL (UNALIGNED)");
      /* For people dumping data, just re-align the return value.  */
      return 1;
    }

  if (ifetch (pc, outf, &iw0))
    return -1;
  priv->iw0 = iw0;

  if (((iw0 & 0xc000) == 0xc000) && ((iw0 & 0xff00) != 0xf800))
    {
      /* 32-bit insn.  */
      if (ifetch (pc + 2, outf, &iw1))
  return -1;
    }
  else
    /* 16-bit insn.  */
    iw1 = 0;

  if ((iw0 & 0xf7ff) == 0xc003 && iw1 == 0x1800)
    {
      if (priv->parallel)
  {
    OUTS (outf, "ILLEGAL");
    return 0;
  }
      OUTS (outf, "MNOP");
      return 4;
    }
  else if ((iw0 & 0xff00) == 0x0000)
    rv = decode_ProgCtrl_0 (iw0, outf);
  else if ((iw0 & 0xffc0) == 0x0240)
    rv = decode_CaCTRL_0 (iw0, outf);
  else if ((iw0 & 0xff80) == 0x0100)
    rv = decode_PushPopReg_0 (iw0, outf);
  else if ((iw0 & 0xfe00) == 0x0400)
    rv = decode_PushPopMultiple_0 (iw0, outf);
  else if ((iw0 & 0xfe00) == 0x0600)
    rv = decode_ccMV_0 (iw0, outf);
  else if ((iw0 & 0xf800) == 0x0800)
    rv = decode_CCflag_0 (iw0, outf);
  else if ((iw0 & 0xffe0) == 0x0200)
    rv = decode_CC2dreg_0 (iw0, outf);
  else if ((iw0 & 0xff00) == 0x0300)
    rv = decode_CC2stat_0 (iw0, outf);
  else if ((iw0 & 0xf000) == 0x1000)
    rv = decode_BRCC_0 (iw0, pc, outf);
  else if ((iw0 & 0xf000) == 0x2000)
    rv = decode_UJUMP_0 (iw0, pc, outf);
  else if ((iw0 & 0xf000) == 0x3000)
    rv = decode_REGMV_0 (iw0, outf);
  else if ((iw0 & 0xfc00) == 0x4000)
    rv = decode_ALU2op_0 (iw0, outf);
  else if ((iw0 & 0xfe00) == 0x4400)
    rv = decode_PTR2op_0 (iw0, outf);
  else if ((iw0 & 0xf800) == 0x4800)
    rv = decode_LOGI2op_0 (iw0, outf);
  else if ((iw0 & 0xf000) == 0x5000)
    rv = decode_COMP3op_0 (iw0, outf);
  else if ((iw0 & 0xf800) == 0x6000)
    rv = decode_COMPI2opD_0 (iw0, outf);
  else if ((iw0 & 0xf800) == 0x6800)
    rv = decode_COMPI2opP_0 (iw0, outf);
  else if ((iw0 & 0xf000) == 0x8000)
    rv = decode_LDSTpmod_0 (iw0, outf);
  else if ((iw0 & 0xff60) == 0x9e60)
    rv = decode_dagMODim_0 (iw0, outf);
  else if ((iw0 & 0xfff0) == 0x9f60)
    rv = decode_dagMODik_0 (iw0, outf);
  else if ((iw0 & 0xfc00) == 0x9c00)
    rv = decode_dspLDST_0 (iw0, outf);
  else if ((iw0 & 0xf000) == 0x9000)
    rv = decode_LDST_0 (iw0, outf);
  else if ((iw0 & 0xfc00) == 0xb800)
    rv = decode_LDSTiiFP_0 (iw0, outf);
  else if ((iw0 & 0xe000) == 0xA000)
    rv = decode_LDSTii_0 (iw0, outf);
  else if ((iw0 & 0xff80) == 0xe080 && (iw1 & 0x0C00) == 0x0000)
    rv = decode_LoopSetup_0 (iw0, iw1, pc, outf);
  else if ((iw0 & 0xff00) == 0xe100 && (iw1 & 0x0000) == 0x0000)
    rv = decode_LDIMMhalf_0 (iw0, iw1, outf);
  else if ((iw0 & 0xfe00) == 0xe200 && (iw1 & 0x0000) == 0x0000)
    rv = decode_CALLa_0 (iw0, iw1, pc, outf);
  else if ((iw0 & 0xfc00) == 0xe400 && (iw1 & 0x0000) == 0x0000)
    rv = decode_LDSTidxI_0 (iw0, iw1, outf);
  else if ((iw0 & 0xfffe) == 0xe800 && (iw1 & 0x0000) == 0x0000)
    rv = decode_linkage_0 (iw0, iw1, outf);
  else if ((iw0 & 0xf600) == 0xc000 && (iw1 & 0x0000) == 0x0000)
    rv = decode_dsp32mac_0 (iw0, iw1, outf);
  else if ((iw0 & 0xf600) == 0xc200 && (iw1 & 0x0000) == 0x0000)
    rv = decode_dsp32mult_0 (iw0, iw1, outf);
  else if ((iw0 & 0xf7c0) == 0xc400 && (iw1 & 0x0000) == 0x0000)
    rv = decode_dsp32alu_0 (iw0, iw1, outf);
  else if ((iw0 & 0xf780) == 0xc600 && (iw1 & 0x01c0) == 0x0000)
    rv = decode_dsp32shift_0 (iw0, iw1, outf);
  else if ((iw0 & 0xf780) == 0xc680 && (iw1 & 0x0000) == 0x0000)
    rv = decode_dsp32shiftimm_0 (iw0, iw1, outf);
  else if ((iw0 & 0xff00) == 0xf800)
    rv = decode_pseudoDEBUG_0 (iw0, outf);
  else if ((iw0 & 0xFF00) == 0xF900)
    rv = decode_pseudoOChar_0 (iw0, outf);
  else if ((iw0 & 0xFF00) == 0xf000 && (iw1 & 0x0000) == 0x0000)
    rv = decode_pseudodbg_assert_0 (iw0, iw1, outf);

  if (rv == 0)
    OUTS (outf, "ILLEGAL");

  return rv;
}

int
print_insn_bfin (bfd_vma pc, disassemble_info *outf)
{
  struct private priv;
  int count;

  priv.parallel = false;
  priv.comment = false;
  outf->private_data = &priv;

  count = _print_insn_bfin (pc, outf);
  if (count == -1)
    return -1;

  /* Proper display of multiple issue instructions.  */

  if (count == 4 && (priv.iw0 & 0xc000) == 0xc000 && (priv.iw0 & BIT_MULTI_INS)
      && ((priv.iw0 & 0xe800) != 0xe800 /* Not Linkage.  */ ))
    {
      bool legal = true;
      int len;

      priv.parallel = true;
      OUTS (outf, " || ");
      len = _print_insn_bfin (pc + 4, outf);
      if (len == -1)
  return -1;
      OUTS (outf, " || ");
      if (len != 2)
  legal = false;
      len = _print_insn_bfin (pc + 6, outf);
      if (len == -1)
  return -1;
      if (len != 2)
  legal = false;

      if (legal)
  count = 8;
      else
  {
    OUTS (outf, ";\t\t/* ILLEGAL PARALLEL INSTRUCTION */");
    priv.comment = true;
    count = 0;
  }
    }

  if (!priv.comment)
    OUTS (outf, ";");

  if (count == 0)
    return 2;

  return count;
}

Coverage Report

Created: 2023-08-28 06:31