source: trunk/src/binutils/opcodes/arc-ext.c@ 29

/* ARC target-dependent stuff. Extension structure access functions 
   Copyright 1995, 1997, 2000, 2001 Free Software Foundation, Inc.

   This file is part of GDB.

   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 of the License, 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 <stdlib.h>
#include <stdio.h>
#include "bfd.h"
#include "arc-ext.h"
#include "libiberty.h"

/* Extension structure  */
static struct arcExtMap arc_extension_map;

/* Get the name of an extension instruction.  */

const char *
arcExtMap_instName(int opcode, int minor, int *flags) 
{
    if (opcode == 3) 
      {
        /* FIXME: ??? need to also check 0/1/2 in bit0 for (3f) brk/sleep/swi  */
        if (minor < 0x09 || minor == 0x3f)
          return 0;
        else
          opcode = 0x1f - 0x10 + minor - 0x09 + 1;
      }
    else
      if (opcode < 0x10)
        return 0;
    else
      opcode -= 0x10;
    if (!arc_extension_map.instructions[opcode])
      return 0;
    *flags = arc_extension_map.instructions[opcode]->flags;
    return arc_extension_map.instructions[opcode]->name;