1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * (C) Copyright 2004, Psyent Corporation <www.psyent.com> 4 * Scott McNutt <smcnutt@psyent.com> 5 */ 6 7 #ifndef __ASM_NIOS2_OPCODES_H_ 8 #define __ASM_NIOS2_OPCODES_H_ 9 10 #define OPCODE_OP(inst) ((inst) & 0x3f) 11 #define OPCODE_OPX(inst) (((inst)>>11) & 0x3f) 12 #define OPCODE_RA(inst) (((inst)>>27) & 01f) 13 #define OPCODE_RB(inst) (((inst)>>22) & 01f) 14 #define OPCODE_RC(inst) (((inst)>>17) & 01f) 15 16 /* I-TYPE (immediate) and J-TYPE (jump) opcodes 17 */ 18 #define OPCODE_CALL 0x00 19 #define OPCODE_LDBU 0x03 20 #define OPCODE_ADDI 0x04 21 #define OPCODE_STB 0x05 22 #define OPCODE_BR 0x06 23 #define OPCODE_LDB 0x07 24 #define OPCODE_CMPGEI 0x08 25 #define OPCODE_LDHU 0x0B 26 #define OPCODE_ANDI 0x0C 27 #define OPCODE_STH 0x0D 28 #define OPCODE_BGE 0x0E 29 #define OPCODE_LDH 0x0F 30 #define OPCODE_CMPLTI 0x10 31 #define OPCODE_XORI 0x1C 32 #define OPCODE_ORI 0x14 33 #define OPCODE_STW 0x15 34 #define OPCODE_BLT 0x16 35 #define OPCODE_LDW 0x17 36 #define OPCODE_CMPNEI 0x18 37 #define OPCODE_BNE 0x1E 38 #define OPCODE_CMPEQI 0x20 39 #define OPCODE_LDBUIO 0x23 40 #define OPCODE_MULI 0x24 41 #define OPCODE_STBIO 0x25 42 #define OPCODE_BEQ 0x26 43 #define OPCODE_LDBIO 0x27 44 #define OPCODE_CMPGEUI 0x28 45 #define OPCODE_ANDHI 0x2C 46 #define OPCODE_STHIO 0x2D 47 #define OPCODE_BGEU 0x2E 48 #define OPCODE_LDHIO 0x2F 49 #define OPCODE_CMPLTUI 0x30 50 #define OPCODE_CUSTOM 0x32 51 #define OPCODE_INITD 0x33 52 #define OPCODE_ORHI 0x34 53 #define OPCODE_STWIO 0x35 54 #define OPCODE_BLTU 0x36 55 #define OPCODE_LDWIO 0x37 56 #define OPCODE_RTYPE 0x3A 57 #define OPCODE_LDHUIO 0x2B 58 #define OPCODE_FLUSHD 0x3B 59 #define OPCODE_XORHI 0x3C 60 61 /* R-Type (register) OPX field encodings 62 */ 63 #define OPCODE_ERET 0x01 64 #define OPCODE_ROLI 0x02 65 #define OPCODE_ROL 0x03 66 #define OPCODE_FLUSHP 0x04 67 #define OPCODE_RET 0x05 68 #define OPCODE_NOR 0x06 69 #define OPCODE_MULXUU 0x07 70 #define OPCODE_CMPGE 0x08 71 #define OPCODE_BRET 0x09 72 #define OPCODE_ROR 0x0B 73 #define OPCODE_FLUSHI 0x0C 74 #define OPCODE_JMP 0x0D 75 #define OPCODE_AND 0x0E 76 77 #define OPCODE_CMPLT 0x10 78 #define OPCODE_SLLI 0x12 79 #define OPCODE_SLL 0x13 80 #define OPCODE_OR 0x16 81 #define OPCODE_MULXSU 0x17 82 #define OPCODE_CMPNE 0x18 83 #define OPCODE_SRLI 0x1A 84 #define OPCODE_SRL 0x1B 85 #define OPCODE_NEXTPC 0x1C 86 #define OPCODE_CALLR 0x1D 87 #define OPCODE_XOR 0x1E 88 #define OPCODE_MULXSS 0x1F 89 90 #define OPCODE_CMPEQ 0x20 91 #define OPCODE_CMPLTU 0x30 92 #define OPCODE_ADD 0x31 93 #define OPCODE_DIVU 0x24 94 #define OPCODE_DIV 0x25 95 #define OPCODE_RDCTL 0x26 96 #define OPCODE_MUL 0x27 97 #define OPCODE_CMPGEU 0x28 98 #define OPCODE_TRAP 0x2D 99 #define OPCODE_WRCTL 0x2E 100 101 #define OPCODE_BREAK 0x34 102 #define OPCODE_SYNC 0x36 103 #define OPCODE_INITI 0x29 104 #define OPCODE_SUB 0x39 105 #define OPCODE_SRAI 0x3A 106 #define OPCODE_SRA 0x3B 107 108 /*Full instruction encodings for R-Type, without the R's ;-) 109 * 110 * TODO: BREAK, BRET, ERET, RET, SYNC (as needed) 111 */ 112 #define OPC_TRAP 0x003b683a 113 114 #endif /* __ASM_NIOS2_OPCODES_H_ */ 115