/* SPU ELF support for BFD.
  
     Copyright 2006 Free Software Foundation, Inc.
  
     This file is part of GDB, GAS, and the GNU binutils.
  
     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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
  
  
  /* These two enums are from rel_apu/common/spu_asm_format.h */
  /* definition of instruction format */
  typedef enum {
    RRR,
    RI18,
    RI16,
    RI10,
    RI8,
    RI7,
    RR,
    LBT,
    LBTI,
    IDATA,
    UNKNOWN_IFORMAT
  } spu_iformat;
  
  /* These values describe assembly instruction arguments.  They indicate
   * how to encode, range checking and which relocation to use. */
  typedef enum {
    A_T,  /* register at pos 0 */
    A_A,  /* register at pos 7 */
    A_B,  /* register at pos 14 */
    A_C,  /* register at pos 21 */
    A_S,  /* special purpose register at pos 7 */
    A_H,  /* channel register at pos 7 */
    A_P,  /* parenthesis, this has to separate regs from immediates */
    A_S3,
    A_S6,
    A_S7N,
    A_S7,
    A_U7A,
    A_U7B,
    A_S10B,
    A_S10,
    A_S11,
    A_S11I,
    A_S14,
    A_S16,
    A_S18,
    A_R18,
    A_U3,
    A_U5,
    A_U6,
    A_U7,
    A_U14,
    A_X16,
    A_U18,
    A_MAX
  } spu_aformat;
  
  enum spu_insns {
  #define APUOP(TAG,MACFORMAT,OPCODE,MNEMONIC,ASMFORMAT,DEP,PIPE) \
  	TAG,
  #define APUOPFB(TAG,MACFORMAT,OPCODE,FB,MNEMONIC,ASMFORMAT,DEP,PIPE) \
  	TAG,
  #include "spu-insns.h"
  #undef APUOP
  #undef APUOPFB
          M_SPU_MAX
  };
  
  struct spu_opcode
  {
     spu_iformat insn_type;
     unsigned int opcode;
     char *mnemonic;
     int arg[5];
  };
  
  #define SIGNED_EXTRACT(insn,size,pos) (((int)((insn) << (32-size-pos))) >> (32-size))
  #define UNSIGNED_EXTRACT(insn,size,pos) (((insn) >> pos) & ((1 << size)-1))
  
  #define DECODE_INSN_RT(insn) (insn & 0x7f)
  #define DECODE_INSN_RA(insn) ((insn >> 7) & 0x7f)
  #define DECODE_INSN_RB(insn) ((insn >> 14) & 0x7f)
  #define DECODE_INSN_RC(insn) ((insn >> 21) & 0x7f)
  
  #define DECODE_INSN_I10(insn) SIGNED_EXTRACT(insn,10,14)
  #define DECODE_INSN_U10(insn) UNSIGNED_EXTRACT(insn,10,14)
  
  /* For branching, immediate loads, hbr and  lqa/stqa. */
  #define DECODE_INSN_I16(insn) SIGNED_EXTRACT(insn,16,7)
  #define DECODE_INSN_U16(insn) UNSIGNED_EXTRACT(insn,16,7)
  
  /* for stop */
  #define DECODE_INSN_U14(insn) UNSIGNED_EXTRACT(insn,14,0)
  
  /* For ila */
  #define DECODE_INSN_I18(insn) SIGNED_EXTRACT(insn,18,7)
  #define DECODE_INSN_U18(insn) UNSIGNED_EXTRACT(insn,18,7)
  
  /* For rotate and shift and generate control mask */
  #define DECODE_INSN_I7(insn) SIGNED_EXTRACT(insn,7,14)
  #define DECODE_INSN_U7(insn) UNSIGNED_EXTRACT(insn,7,14)
  
  /* For float <-> int conversion */
  #define DECODE_INSN_I8(insn)  SIGNED_EXTRACT(insn,8,14)
  #define DECODE_INSN_U8(insn) UNSIGNED_EXTRACT(insn,8,14)
  
  /* For hbr  */
  #define DECODE_INSN_I9a(insn) ((SIGNED_EXTRACT(insn,2,23) << 7) | UNSIGNED_EXTRACT(insn,7,0))
  #define DECODE_INSN_I9b(insn) ((SIGNED_EXTRACT(insn,2,14) << 7) | UNSIGNED_EXTRACT(insn,7,0))
  #define DECODE_INSN_U9a(insn) ((UNSIGNED_EXTRACT(insn,2,23) << 7) | UNSIGNED_EXTRACT(insn,7,0))
  #define DECODE_INSN_U9b(insn) ((UNSIGNED_EXTRACT(insn,2,14) << 7) | UNSIGNED_EXTRACT(insn,7,0))