osprey/cygnus/opcodes/ip2k-opc.c

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/*
 * Copyright 2003, 2004, 2005, 2006 PathScale, Inc.  All Rights Reserved.
 */

/* Instruction opcode table for ip2k.

THIS FILE IS MACHINE GENERATED WITH CGEN.

Copyright 1996-2005 Free Software Foundation, Inc.

This file is part of the GNU Binutils and/or GDB, the GNU debugger.

This program 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 2, or (at your option)
any later version.

This program 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.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

*/

#include "sysdep.h"
#include "ansidecl.h"
#include "bfd.h"
#include "symcat.h"
#include "ip2k-desc.h"
#include "ip2k-opc.h"
#include "libiberty.h"

/* -- opc.c */

#include "safe-ctype.h"

/* A better hash function for instruction mnemonics. */
unsigned int
ip2k_asm_hash (insn)
     const char* insn;
{
  unsigned int hash;
  const char* m = insn;

  for (hash = 0; *m && !ISSPACE(*m); m++)
    hash = (hash * 23) ^ (0x1F & TOLOWER(*m));

  /* printf ("%s %d\n", insn, (hash % CGEN_ASM_HASH_SIZE)); */

  return hash % CGEN_ASM_HASH_SIZE;
}


/* Special check to ensure that instruction exists for given machine. */
int
ip2k_cgen_insn_supported (cd, insn)
     CGEN_CPU_DESC cd;
     const CGEN_INSN *insn;
{
  int machs = CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_MACH);

  /* No mach attribute?  Assume it's supported for all machs.  */
  if (machs == 0)
    return 1;
  
  return ((machs & cd->machs) != 0);
}


/* -- asm.c */
/* The hash functions are recorded here to help keep assembler code out of
   the disassembler and vice versa.  */

static int asm_hash_insn_p PARAMS ((const CGEN_INSN *));
static unsigned int asm_hash_insn PARAMS ((const char *));
static int dis_hash_insn_p PARAMS ((const CGEN_INSN *));
static unsigned int dis_hash_insn PARAMS ((const char *, CGEN_INSN_INT));

/* Instruction formats.  */

#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
#define F(f) & ip2k_cgen_ifld_table[IP2K_##f]
#else
#define F(f) & ip2k_cgen_ifld_table[IP2K_f]
#endif
static const CGEN_IFMT ifmt_empty ATTRIBUTE_UNUSED = {
  0, 0, 0x0, { { 0 } }
};

static const CGEN_IFMT ifmt_jmp ATTRIBUTE_UNUSED = {
  16, 16, 0xe000, { { F (F_OP3) }, { F (F_ADDR16CJP) }, { 0 } }
};

static const CGEN_IFMT ifmt_sb ATTRIBUTE_UNUSED = {
  16, 16, 0xf000, { { F (F_OP4) }, { F (F_BITNO) }, { F (F_REG) }, { 0 } }
};

static const CGEN_IFMT ifmt_xorw_l ATTRIBUTE_UNUSED = {
  16, 16, 0xff00, { { F (F_OP4) }, { F (F_OP4MID) }, { F (F_IMM8) }, { 0 } }
};

static const CGEN_IFMT ifmt_loadl_a ATTRIBUTE_UNUSED = {
  16, 16, 0xff00, { { F (F_OP4) }, { F (F_OP4MID) }, { F (F_IMM8) }, { 0 } }
};

static const CGEN_IFMT ifmt_loadh_a ATTRIBUTE_UNUSED = {
  16, 16, 0xff00, { { F (F_OP4) }, { F (F_OP4MID) }, { F (F_IMM8) }, { 0 } }
};

static const CGEN_IFMT ifmt_addcfr_w ATTRIBUTE_UNUSED = {
  16, 16, 0xfe00, { { F (F_OP6) }, { F (F_DIR) }, { F (F_REG) }, { 0 } }
};

static const CGEN_IFMT ifmt_speed ATTRIBUTE_UNUSED = {
  16, 16, 0xff00, { { F (F_OP8) }, { F (F_IMM8) }, { 0 } }
};

static const CGEN_IFMT ifmt_ireadi ATTRIBUTE_UNUSED = {
  16, 16, 0xffff, { { F (F_OP6) }, { F (F_OP6_10LOW) }, { 0 } }
};

static const CGEN_IFMT ifmt_page ATTRIBUTE_UNUSED = {
  16, 16, 0xfff8, { { F (F_OP6) }, { F (F_OP6_7LOW) }, { F (F_PAGE3) }, { 0 } }
};

static const CGEN_IFMT ifmt_reti ATTRIBUTE_UNUSED = {
  16, 16, 0xfff8, { { F (F_OP6) }, { F (F_OP6_7LOW) }, { F (F_RETI3) }, { 0 } }
};

#undef F

#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
#define A(a) (1 << CGEN_INSN_##a)
#else
#define A(a) (1 << CGEN_INSN_a)
#endif
#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
#define OPERAND(op) IP2K_OPERAND_##op
#else
#define OPERAND(op) IP2K_OPERAND_op
#endif
#define MNEM CGEN_SYNTAX_MNEMONIC /* syntax value for mnemonic */
#define OP(field) CGEN_SYNTAX_MAKE_FIELD (OPERAND (field))

/* The instruction table.  */

static const CGEN_OPCODE ip2k_cgen_insn_opcode_table[MAX_INSNS] =
{
  /* Special null first entry.
     A `num' value of zero is thus invalid.
     Also, the special `invalid' insn resides here.  */
  { { 0, 0, 0, 0 }, {{0}}, 0, {0}},
/* jmp $addr16cjp */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (ADDR16CJP), 0 } },
    & ifmt_jmp, { 0xe000 }
  },
/* call $addr16cjp */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (ADDR16CJP), 0 } },
    & ifmt_jmp, { 0xc000 }
  },
/* sb $fr,$bitno */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), ',', OP (BITNO), 0 } },
    & ifmt_sb, { 0xb000 }
  },
/* snb $fr,$bitno */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), ',', OP (BITNO), 0 } },
    & ifmt_sb, { 0xa000 }
  },
/* setb $fr,$bitno */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), ',', OP (BITNO), 0 } },
    & ifmt_sb, { 0x9000 }
  },
/* clrb $fr,$bitno */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), ',', OP (BITNO), 0 } },
    & ifmt_sb, { 0x8000 }
  },
/* xor W,#$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7f00 }
  },
/* and W,#$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7e00 }
  },
/* or W,#$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7d00 }
  },
/* add W,#$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7b00 }
  },
/* sub W,#$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7a00 }
  },
/* cmp W,#$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7900 }
  },
/* retw #$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7800 }
  },
/* cse W,#$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7700 }
  },
/* csne W,#$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7600 }
  },
/* push #$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7400 }
  },
/* muls W,#$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7300 }
  },
/* mulu W,#$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7200 }
  },
/* loadl #$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7100 }
  },
/* loadh #$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7000 }
  },
/* loadl $addr16l */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (ADDR16L), 0 } },
    & ifmt_loadl_a, { 0x7100 }
  },
/* loadh $addr16h */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (ADDR16H), 0 } },
    & ifmt_loadh_a, { 0x7000 }
  },
/* addc $fr,W */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), ',', 'W', 0 } },
    & ifmt_addcfr_w, { 0x5e00 }
  },
/* addc W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x5c00 }
  },
/* incsnz $fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x5a00 }
  },
/* incsnz W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x5800 }
  },
/* muls W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x5400 }
  },
/* mulu W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x5000 }
  },
/* decsnz $fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x4e00 }
  },
/* decsnz W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x4c00 }
  },
/* subc W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x4800 }
  },
/* subc $fr,W */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), ',', 'W', 0 } },
    & ifmt_addcfr_w, { 0x4a00 }
  },
/* pop $fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x4600 }
  },
/* push $fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x4400 }
  },
/* cse W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x4200 }
  },
/* csne W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x4000 }
  },
/* incsz $fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x3e00 }
  },
/* incsz W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x3c00 }
  },
/* swap $fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x3a00 }
  },
/* swap W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x3800 }
  },
/* rl $fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x3600 }
  },
/* rl W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x3400 }
  },
/* rr $fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x3200 }
  },
/* rr W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x3000 }
  },
/* decsz $fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x2e00 }
  },
/* decsz W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x2c00 }
  },
/* inc $fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x2a00 }
  },
/* inc W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x2800 }
  },
/* not $fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x2600 }
  },
/* not W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x2400 }
  },
/* test $fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x2200 }
  },
/* mov W,#$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', '#', OP (LIT8), 0 } },
    & ifmt_xorw_l, { 0x7c00 }
  },
/* mov $fr,W */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), ',', 'W', 0 } },
    & ifmt_addcfr_w, { 0x200 }
  },
/* mov W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x2000 }
  },
/* add $fr,W */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), ',', 'W', 0 } },
    & ifmt_addcfr_w, { 0x1e00 }
  },
/* add W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x1c00 }
  },
/* xor $fr,W */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), ',', 'W', 0 } },
    & ifmt_addcfr_w, { 0x1a00 }
  },
/* xor W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x1800 }
  },
/* and $fr,W */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), ',', 'W', 0 } },
    & ifmt_addcfr_w, { 0x1600 }
  },
/* and W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x1400 }
  },
/* or $fr,W */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), ',', 'W', 0 } },
    & ifmt_addcfr_w, { 0x1200 }
  },
/* or W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x1000 }
  },
/* dec $fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0xe00 }
  },
/* dec W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0xc00 }
  },
/* sub $fr,W */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), ',', 'W', 0 } },
    & ifmt_addcfr_w, { 0xa00 }
  },
/* sub W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x800 }
  },
/* clr $fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x600 }
  },
/* cmp W,$fr */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', 'W', ',', OP (FR), 0 } },
    & ifmt_addcfr_w, { 0x400 }
  },
/* speed #$lit8 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', '#', OP (LIT8), 0 } },
    & ifmt_speed, { 0x100 }
  },
/* ireadi */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0x1d }
  },
/* iwritei */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0x1c }
  },
/* fread */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0x1b }
  },
/* fwrite */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0x1a }
  },
/* iread */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0x19 }
  },
/* iwrite */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0x18 }
  },
/* page $addr16p */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', OP (ADDR16P), 0 } },
    & ifmt_page, { 0x10 }
  },
/* system */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0xff }
  },
/* reti #$reti3 */
  {
    { 0, 0, 0, 0 },
    { { MNEM, ' ', '#', OP (RETI3), 0 } },
    & ifmt_reti, { 0x8 }
  },
/* ret */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0x7 }
  },
/* int */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0x6 }
  },
/* breakx */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0x5 }
  },
/* cwdt */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0x4 }
  },
/* ferase */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0x3 }
  },
/* retnp */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0x2 }
  },
/* break */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0x1 }
  },
/* nop */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_ireadi, { 0x0 }
  },
};

#undef A
#undef OPERAND
#undef MNEM
#undef OP

/* Formats for ALIAS macro-insns.  */

#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
#define F(f) & ip2k_cgen_ifld_table[IP2K_##f]
#else
#define F(f) & ip2k_cgen_ifld_table[IP2K_f]
#endif
static const CGEN_IFMT ifmt_sc ATTRIBUTE_UNUSED = {
  16, 16, 0xffff, { { F (F_OP4) }, { F (F_BITNO) }, { F (F_REG) }, { 0 } }
};

static const CGEN_IFMT ifmt_snc ATTRIBUTE_UNUSED = {
  16, 16, 0xffff, { { F (F_OP4) }, { F (F_BITNO) }, { F (F_REG) }, { 0 } }
};

static const CGEN_IFMT ifmt_sz ATTRIBUTE_UNUSED = {
  16, 16, 0xffff, { { F (F_OP4) }, { F (F_BITNO) }, { F (F_REG) }, { 0 } }
};

static const CGEN_IFMT ifmt_snz ATTRIBUTE_UNUSED = {
  16, 16, 0xffff, { { F (F_OP4) }, { F (F_BITNO) }, { F (F_REG) }, { 0 } }
};

static const CGEN_IFMT ifmt_skip ATTRIBUTE_UNUSED = {
  16, 16, 0xffff, { { F (F_OP4) }, { F (F_BITNO) }, { F (F_REG) }, { 0 } }
};

static const CGEN_IFMT ifmt_skipb ATTRIBUTE_UNUSED = {
  16, 16, 0xffff, { { F (F_OP4) }, { F (F_BITNO) }, { F (F_REG) }, { 0 } }
};

#undef F

/* Each non-simple macro entry points to an array of expansion possibilities.  */

#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
#define A(a) (1 << CGEN_INSN_##a)
#else
#define A(a) (1 << CGEN_INSN_a)
#endif
#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
#define OPERAND(op) IP2K_OPERAND_##op
#else
#define OPERAND(op) IP2K_OPERAND_op
#endif
#define MNEM CGEN_SYNTAX_MNEMONIC /* syntax value for mnemonic */
#define OP(field) CGEN_SYNTAX_MAKE_FIELD (OPERAND (field))

/* The macro instruction table.  */

static const CGEN_IBASE ip2k_cgen_macro_insn_table[] =
{
/* sc */
  {
    -1, "sc", "sc", 16,
    { 0|A(ALIAS), { (1<<MACH_BASE) } }
  },
/* snc */
  {
    -1, "snc", "snc", 16,
    { 0|A(ALIAS), { (1<<MACH_BASE) } }
  },
/* sz */
  {
    -1, "sz", "sz", 16,
    { 0|A(ALIAS), { (1<<MACH_BASE) } }
  },
/* snz */
  {
    -1, "snz", "snz", 16,
    { 0|A(ALIAS), { (1<<MACH_BASE) } }
  },
/* skip */
  {
    -1, "skip", "skip", 16,
    { 0|A(SKIPA)|A(ALIAS), { (1<<MACH_BASE) } }
  },
/* skip */
  {
    -1, "skipb", "skip", 16,
    { 0|A(SKIPA)|A(ALIAS), { (1<<MACH_BASE) } }
  },
};

/* The macro instruction opcode table.  */

static const CGEN_OPCODE ip2k_cgen_macro_insn_opcode_table[] =
{
/* sc */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_sc, { 0xb00b }
  },
/* snc */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_snc, { 0xa00b }
  },
/* sz */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_sz, { 0xb40b }
  },
/* snz */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_snz, { 0xa40b }
  },
/* skip */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_skip, { 0xa009 }
  },
/* skip */
  {
    { 0, 0, 0, 0 },
    { { MNEM, 0 } },
    & ifmt_skipb, { 0xb009 }
  },
};

#undef A
#undef OPERAND
#undef MNEM
#undef OP

#ifndef CGEN_ASM_HASH_P
#define CGEN_ASM_HASH_P(insn) 1
#endif

#ifndef CGEN_DIS_HASH_P
#define CGEN_DIS_HASH_P(insn) 1
#endif

/* Return non-zero if INSN is to be added to the hash table.
   Targets are free to override CGEN_{ASM,DIS}_HASH_P in the .opc file.  */

static int
asm_hash_insn_p (insn)
     const CGEN_INSN *insn ATTRIBUTE_UNUSED;
{
  return CGEN_ASM_HASH_P (insn);
}

static int
dis_hash_insn_p (insn)
     const CGEN_INSN *insn;
{
  /* If building the hash table and the NO-DIS attribute is present,
     ignore.  */
  if (CGEN_INSN_ATTR_VALUE (insn, CGEN_INSN_NO_DIS))
    return 0;
  return CGEN_DIS_HASH_P (insn);
}

#ifndef CGEN_ASM_HASH
#define CGEN_ASM_HASH_SIZE 127
#ifdef CGEN_MNEMONIC_OPERANDS
#define CGEN_ASM_HASH(mnem) (*(unsigned char *) (mnem) % CGEN_ASM_HASH_SIZE)
#else
#define CGEN_ASM_HASH(mnem) (*(unsigned char *) (mnem) % CGEN_ASM_HASH_SIZE) /*FIXME*/
#endif
#endif

/* It doesn't make much sense to provide a default here,
   but while this is under development we do.
   BUFFER is a pointer to the bytes of the insn, target order.
   VALUE is the first base_insn_bitsize bits as an int in host order.  */

#ifndef CGEN_DIS_HASH
#define CGEN_DIS_HASH_SIZE 256
#define CGEN_DIS_HASH(buf, value) (*(unsigned char *) (buf))
#endif

/* The result is the hash value of the insn.
   Targets are free to override CGEN_{ASM,DIS}_HASH in the .opc file.  */

static unsigned int
asm_hash_insn (mnem)
     const char * mnem;
{
  return CGEN_ASM_HASH (mnem);
}

/* BUF is a pointer to the bytes of the insn, target order.
   VALUE is the first base_insn_bitsize bits as an int in host order.  */

static unsigned int
dis_hash_insn (buf, value)
     const char * buf ATTRIBUTE_UNUSED;
     CGEN_INSN_INT value ATTRIBUTE_UNUSED;
{
  return CGEN_DIS_HASH (buf, value);
}

static void set_fields_bitsize PARAMS ((CGEN_FIELDS *, int));

/* Set the recorded length of the insn in the CGEN_FIELDS struct.  */

static void
set_fields_bitsize (fields, size)
     CGEN_FIELDS *fields;
     int size;
{
  CGEN_FIELDS_BITSIZE (fields) = size;
}

/* Function to call before using the operand instance table.
   This plugs the opcode entries and macro instructions into the cpu table.  */

void
ip2k_cgen_init_opcode_table (cd)
     CGEN_CPU_DESC cd;
{
  int i;
  int num_macros = (sizeof (ip2k_cgen_macro_insn_table) /
        sizeof (ip2k_cgen_macro_insn_table[0]));
  const CGEN_IBASE *ib = & ip2k_cgen_macro_insn_table[0];
  const CGEN_OPCODE *oc = & ip2k_cgen_macro_insn_opcode_table[0];
  CGEN_INSN *insns = (CGEN_INSN *) xmalloc (num_macros * sizeof (CGEN_INSN));
  memset (insns, 0, num_macros * sizeof (CGEN_INSN));
  for (i = 0; i < num_macros; ++i)
    {
      insns[i].base = &ib[i];
      insns[i].opcode = &oc[i];
      ip2k_cgen_build_insn_regex (& insns[i]);
    }
  cd->macro_insn_table.init_entries = insns;
  cd->macro_insn_table.entry_size = sizeof (CGEN_IBASE);
  cd->macro_insn_table.num_init_entries = num_macros;

  oc = & ip2k_cgen_insn_opcode_table[0];
  insns = (CGEN_INSN *) cd->insn_table.init_entries;
  for (i = 0; i < MAX_INSNS; ++i)
    {
      insns[i].opcode = &oc[i];
      ip2k_cgen_build_insn_regex (& insns[i]);
    }

  cd->sizeof_fields = sizeof (CGEN_FIELDS);
  cd->set_fields_bitsize = set_fields_bitsize;

  cd->asm_hash_p = asm_hash_insn_p;
  cd->asm_hash = asm_hash_insn;
  cd->asm_hash_size = CGEN_ASM_HASH_SIZE;

  cd->dis_hash_p = dis_hash_insn_p;
  cd->dis_hash = dis_hash_insn;
  cd->dis_hash_size = CGEN_DIS_HASH_SIZE;
}

---