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/* SPU ELF support for BFD.
Copyright (C) 2006-2023 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 3 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 "opcode/spu-insns.h"
#undef APUOP
#undef APUOPFB
M_SPU_MAX
};
struct spu_opcode
{
spu_iformat insn_type;
unsigned int opcode;
const char *mnemonic;
int arg[5];
};
#define UNSIGNED_EXTRACT(insn, size, pos) \
(((insn) >> (pos)) & ((1u << (size)) - 1))
#define SIGNED_EXTRACT(insn, size, pos) \
(((int) UNSIGNED_EXTRACT(insn, size, pos) \
^ (1 << ((size) - 1))) - (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) * 128) | (int) UNSIGNED_EXTRACT (insn, 7, 0))
#define DECODE_INSN_I9b(insn) \
((SIGNED_EXTRACT (insn, 2, 14) * 128) | (int) UNSIGNED_EXTRACT (insn, 7, 0))
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