1 /* SPU ELF support for BFD. 2 3 Copyright (C) 2006-2022 Free Software Foundation, Inc. 4 5 This file is part of GDB, GAS, and the GNU binutils. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program; if not, write to the Free Software Foundation, 19 Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 20 21 /* These two enums are from rel_apu/common/spu_asm_format.h */ 22 /* definition of instruction format */ 23 typedef enum { 24 RRR, 25 RI18, 26 RI16, 27 RI10, 28 RI8, 29 RI7, 30 RR, 31 LBT, 32 LBTI, 33 IDATA, 34 UNKNOWN_IFORMAT 35 } spu_iformat; 36 37 /* These values describe assembly instruction arguments. They indicate 38 * how to encode, range checking and which relocation to use. */ 39 typedef enum { 40 A_T, /* register at pos 0 */ 41 A_A, /* register at pos 7 */ 42 A_B, /* register at pos 14 */ 43 A_C, /* register at pos 21 */ 44 A_S, /* special purpose register at pos 7 */ 45 A_H, /* channel register at pos 7 */ 46 A_P, /* parenthesis, this has to separate regs from immediates */ 47 A_S3, 48 A_S6, 49 A_S7N, 50 A_S7, 51 A_U7A, 52 A_U7B, 53 A_S10B, 54 A_S10, 55 A_S11, 56 A_S11I, 57 A_S14, 58 A_S16, 59 A_S18, 60 A_R18, 61 A_U3, 62 A_U5, 63 A_U6, 64 A_U7, 65 A_U14, 66 A_X16, 67 A_U18, 68 A_MAX 69 } spu_aformat; 70 71 enum spu_insns { 72 #define APUOP(TAG,MACFORMAT,OPCODE,MNEMONIC,ASMFORMAT,DEP,PIPE) \ 73 TAG, 74 #define APUOPFB(TAG,MACFORMAT,OPCODE,FB,MNEMONIC,ASMFORMAT,DEP,PIPE) \ 75 TAG, 76 #include "opcode/spu-insns.h" 77 #undef APUOP 78 #undef APUOPFB 79 M_SPU_MAX 80 }; 81 82 struct spu_opcode 83 { 84 spu_iformat insn_type; 85 unsigned int opcode; 86 const char *mnemonic; 87 int arg[5]; 88 }; 89 90 #define UNSIGNED_EXTRACT(insn, size, pos) \ 91 (((insn) >> (pos)) & ((1u << (size)) - 1)) 92 #define SIGNED_EXTRACT(insn, size, pos) \ 93 (((int) UNSIGNED_EXTRACT(insn, size, pos) \ 94 ^ (1 << ((size) - 1))) - (1 << ((size) - 1))) 95 96 #define DECODE_INSN_RT(insn) (insn & 0x7f) 97 #define DECODE_INSN_RA(insn) ((insn >> 7) & 0x7f) 98 #define DECODE_INSN_RB(insn) ((insn >> 14) & 0x7f) 99 #define DECODE_INSN_RC(insn) ((insn >> 21) & 0x7f) 100 101 #define DECODE_INSN_I10(insn) SIGNED_EXTRACT (insn, 10, 14) 102 #define DECODE_INSN_U10(insn) UNSIGNED_EXTRACT (insn, 10, 14) 103 104 /* For branching, immediate loads, hbr and lqa/stqa. */ 105 #define DECODE_INSN_I16(insn) SIGNED_EXTRACT (insn, 16, 7) 106 #define DECODE_INSN_U16(insn) UNSIGNED_EXTRACT (insn, 16, 7) 107 108 /* for stop */ 109 #define DECODE_INSN_U14(insn) UNSIGNED_EXTRACT (insn, 14, 0) 110 111 /* For ila */ 112 #define DECODE_INSN_I18(insn) SIGNED_EXTRACT (insn, 18, 7) 113 #define DECODE_INSN_U18(insn) UNSIGNED_EXTRACT (insn, 18, 7) 114 115 /* For rotate and shift and generate control mask */ 116 #define DECODE_INSN_I7(insn) SIGNED_EXTRACT (insn, 7, 14) 117 #define DECODE_INSN_U7(insn) UNSIGNED_EXTRACT (insn, 7, 14) 118 119 /* For float <-> int conversion */ 120 #define DECODE_INSN_I8(insn) SIGNED_EXTRACT (insn, 8, 14) 121 #define DECODE_INSN_U8(insn) UNSIGNED_EXTRACT (insn, 8, 14) 122 123 /* For hbr */ 124 #define DECODE_INSN_I9a(insn) \ 125 ((SIGNED_EXTRACT (insn, 2, 23) * 128) | (int) UNSIGNED_EXTRACT (insn, 7, 0)) 126 #define DECODE_INSN_I9b(insn) \ 127 ((SIGNED_EXTRACT (insn, 2, 14) * 128) | (int) UNSIGNED_EXTRACT (insn, 7, 0)) 128 129