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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-6.8/] [include/] [opcode/] [spu.h] - Blame information for rev 816

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1 24 jeremybenn
/* SPU ELF support for BFD.
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   Copyright 2006 Free Software Foundation, Inc.
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   This file is part of GDB, GAS, and the GNU binutils.
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   This program is free software; you can redistribute it and/or modify
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   it under the terms of the GNU General Public License as published by
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   the Free Software Foundation; either version 2 of the License, or
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   (at your option) any later version.
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   This program is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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   GNU General Public License for more details.
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   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software Foundation,
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   Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
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/* These two enums are from rel_apu/common/spu_asm_format.h */
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/* definition of instruction format */
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typedef enum {
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  RRR,
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  RI18,
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  RI16,
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  RI10,
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  RI8,
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  RI7,
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  RR,
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  LBT,
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  LBTI,
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  IDATA,
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  UNKNOWN_IFORMAT
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} spu_iformat;
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/* These values describe assembly instruction arguments.  They indicate
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 * how to encode, range checking and which relocation to use. */
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typedef enum {
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  A_T,  /* register at pos 0 */
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  A_A,  /* register at pos 7 */
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  A_B,  /* register at pos 14 */
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  A_C,  /* register at pos 21 */
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  A_S,  /* special purpose register at pos 7 */
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  A_H,  /* channel register at pos 7 */
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  A_P,  /* parenthesis, this has to separate regs from immediates */
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  A_S3,
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  A_S6,
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  A_S7N,
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  A_S7,
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  A_U7A,
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  A_U7B,
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  A_S10B,
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  A_S10,
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  A_S11,
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  A_S11I,
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  A_S14,
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  A_S16,
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  A_S18,
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  A_R18,
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  A_U3,
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  A_U5,
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  A_U6,
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  A_U7,
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  A_U14,
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  A_X16,
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  A_U18,
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  A_MAX
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} spu_aformat;
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enum spu_insns {
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#define APUOP(TAG,MACFORMAT,OPCODE,MNEMONIC,ASMFORMAT,DEP,PIPE) \
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        TAG,
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#define APUOPFB(TAG,MACFORMAT,OPCODE,FB,MNEMONIC,ASMFORMAT,DEP,PIPE) \
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        TAG,
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#include "opcode/spu-insns.h"
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#undef APUOP
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#undef APUOPFB
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        M_SPU_MAX
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};
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struct spu_opcode
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{
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   spu_iformat insn_type;
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   unsigned int opcode;
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   char *mnemonic;
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   int arg[5];
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};
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#define SIGNED_EXTRACT(insn,size,pos) (((int)((insn) << (32-size-pos))) >> (32-size))
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#define UNSIGNED_EXTRACT(insn,size,pos) (((insn) >> pos) & ((1 << size)-1))
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#define DECODE_INSN_RT(insn) (insn & 0x7f)
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#define DECODE_INSN_RA(insn) ((insn >> 7) & 0x7f)
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#define DECODE_INSN_RB(insn) ((insn >> 14) & 0x7f)
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#define DECODE_INSN_RC(insn) ((insn >> 21) & 0x7f)
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#define DECODE_INSN_I10(insn) SIGNED_EXTRACT(insn,10,14)
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#define DECODE_INSN_U10(insn) UNSIGNED_EXTRACT(insn,10,14)
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/* For branching, immediate loads, hbr and  lqa/stqa. */
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#define DECODE_INSN_I16(insn) SIGNED_EXTRACT(insn,16,7)
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#define DECODE_INSN_U16(insn) UNSIGNED_EXTRACT(insn,16,7)
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/* for stop */
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#define DECODE_INSN_U14(insn) UNSIGNED_EXTRACT(insn,14,0)
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/* For ila */
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#define DECODE_INSN_I18(insn) SIGNED_EXTRACT(insn,18,7)
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#define DECODE_INSN_U18(insn) UNSIGNED_EXTRACT(insn,18,7)
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/* For rotate and shift and generate control mask */
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#define DECODE_INSN_I7(insn) SIGNED_EXTRACT(insn,7,14)
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#define DECODE_INSN_U7(insn) UNSIGNED_EXTRACT(insn,7,14)
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/* For float <-> int conversion */
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#define DECODE_INSN_I8(insn)  SIGNED_EXTRACT(insn,8,14)
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#define DECODE_INSN_U8(insn) UNSIGNED_EXTRACT(insn,8,14)
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/* For hbr  */
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#define DECODE_INSN_I9a(insn) ((SIGNED_EXTRACT(insn,2,23) << 7) | UNSIGNED_EXTRACT(insn,7,0))
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#define DECODE_INSN_I9b(insn) ((SIGNED_EXTRACT(insn,2,14) << 7) | UNSIGNED_EXTRACT(insn,7,0))
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#define DECODE_INSN_U9a(insn) ((UNSIGNED_EXTRACT(insn,2,23) << 7) | UNSIGNED_EXTRACT(insn,7,0))
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#define DECODE_INSN_U9b(insn) ((UNSIGNED_EXTRACT(insn,2,14) << 7) | UNSIGNED_EXTRACT(insn,7,0))
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