spu.h

来自「linux 内核源代码」· C头文件 代码 · 共 127 行

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/* 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))

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