/* ARC target-dependent stuff. Extension data structures.
   Copyright 1995, 1997, 2000, 2001, 2005, 2007 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.  */

#ifndef ARCEXT_H
#define ARCEXT_H


enum { INST_HASH_BITS = 6 };
enum {NUM_EXT_CORE = 59-32+1};
enum {NUM_EXT_COND = 0x1f-0x10+1};

enum { INST_HASH_SIZE = 1 << INST_HASH_BITS };
#define INST_HASH(MAJOR,MINOR) \
  ((((MAJOR) << 3) ^ (MINOR)) & ((INST_HASH_SIZE) - 1))

enum ExtOperType
  {
    EXT_INSTRUCTION,
    EXT_CORE_REGISTER,
    EXT_AUX_REGISTER,
    EXT_COND_CODE,
    EXT_AC_INSTRUCTION,
    EXT_LONG_CORE_REGISTER = 0x06
  };

/* Define this if we do not want to encode instructions based on the
   ARCompact Programmer's Reference.  */
#define UNMANGLED

struct ExtInstruction
{
  char major;
  char minor;
  char flags;
  char *name;
  struct ExtInstruction *next;
};

struct ExtAuxRegister
{
  long address;
  char *name;
  struct ExtAuxRegister *next;
};

enum ExtReadWrite
  {
    REG_INVALID,
    REG_READ,
    REG_WRITE,
    REG_READWRITE
  };

struct ExtCoreRegister
{
  short number;
  enum ExtReadWrite rw;
  char *name;
};

struct arcExtMap
{
  struct ExtAuxRegister *auxRegisters;
  struct ExtInstruction *instructions[INST_HASH_SIZE];
  struct ExtCoreRegister coreRegisters[NUM_EXT_CORE];
  char *condCodes[NUM_EXT_COND];
};

extern int arcExtMap_add(void*, unsigned long);
extern enum ExtReadWrite arcExtMap_coreReadWrite (int);
extern const char *arcExtMap_coreRegName(int);
extern const char *arcExtMap_auxRegName(long);
extern const char *arcExtMap_condCodeName(int);
extern const char *arcExtMap_instName(int, int, int*);

/* Ravi:
   warning: implicit declaration of function `build_ARC_extmap'
*/
extern void build_ARC_extmap (bfd *);


#define IGNORE_FIRST_OPD 1

#endif /* __arcExtMap_h__ */