116 lines
2.9 KiB
C
116 lines
2.9 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-or-later */
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/* 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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*/
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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 "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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