1 /* 2 * (C) Copyright 2004, Psyent Corporation <www.psyent.com> 3 * Scott McNutt <smcnutt@psyent.com> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #ifndef __ASM_NIOS2_OPCODES_H_ 9 #define __ASM_NIOS2_OPCODES_H_ 10 11 #define OPCODE_OP(inst) ((inst) & 0x3f) 12 #define OPCODE_OPX(inst) (((inst)>>11) & 0x3f) 13 #define OPCODE_RA(inst) (((inst)>>27) & 01f) 14 #define OPCODE_RB(inst) (((inst)>>22) & 01f) 15 #define OPCODE_RC(inst) (((inst)>>17) & 01f) 16 17 /* I-TYPE (immediate) and J-TYPE (jump) opcodes 18 */ 19 #define OPCODE_CALL 0x00 20 #define OPCODE_LDBU 0x03 21 #define OPCODE_ADDI 0x04 22 #define OPCODE_STB 0x05 23 #define OPCODE_BR 0x06 24 #define OPCODE_LDB 0x07 25 #define OPCODE_CMPGEI 0x08 26 #define OPCODE_LDHU 0x0B 27 #define OPCODE_ANDI 0x0C 28 #define OPCODE_STH 0x0D 29 #define OPCODE_BGE 0x0E 30 #define OPCODE_LDH 0x0F 31 #define OPCODE_CMPLTI 0x10 32 #define OPCODE_XORI 0x1C 33 #define OPCODE_ORI 0x14 34 #define OPCODE_STW 0x15 35 #define OPCODE_BLT 0x16 36 #define OPCODE_LDW 0x17 37 #define OPCODE_CMPNEI 0x18 38 #define OPCODE_BNE 0x1E 39 #define OPCODE_CMPEQI 0x20 40 #define OPCODE_LDBUIO 0x23 41 #define OPCODE_MULI 0x24 42 #define OPCODE_STBIO 0x25 43 #define OPCODE_BEQ 0x26 44 #define OPCODE_LDBIO 0x27 45 #define OPCODE_CMPGEUI 0x28 46 #define OPCODE_ANDHI 0x2C 47 #define OPCODE_STHIO 0x2D 48 #define OPCODE_BGEU 0x2E 49 #define OPCODE_LDHIO 0x2F 50 #define OPCODE_CMPLTUI 0x30 51 #define OPCODE_CUSTOM 0x32 52 #define OPCODE_INITD 0x33 53 #define OPCODE_ORHI 0x34 54 #define OPCODE_STWIO 0x35 55 #define OPCODE_BLTU 0x36 56 #define OPCODE_LDWIO 0x37 57 #define OPCODE_RTYPE 0x3A 58 #define OPCODE_LDHUIO 0x2B 59 #define OPCODE_FLUSHD 0x3B 60 #define OPCODE_XORHI 0x3C 61 62 /* R-Type (register) OPX field encodings 63 */ 64 #define OPCODE_ERET 0x01 65 #define OPCODE_ROLI 0x02 66 #define OPCODE_ROL 0x03 67 #define OPCODE_FLUSHP 0x04 68 #define OPCODE_RET 0x05 69 #define OPCODE_NOR 0x06 70 #define OPCODE_MULXUU 0x07 71 #define OPCODE_CMPGE 0x08 72 #define OPCODE_BRET 0x09 73 #define OPCODE_ROR 0x0B 74 #define OPCODE_FLUSHI 0x0C 75 #define OPCODE_JMP 0x0D 76 #define OPCODE_AND 0x0E 77 78 #define OPCODE_CMPLT 0x10 79 #define OPCODE_SLLI 0x12 80 #define OPCODE_SLL 0x13 81 #define OPCODE_OR 0x16 82 #define OPCODE_MULXSU 0x17 83 #define OPCODE_CMPNE 0x18 84 #define OPCODE_SRLI 0x1A 85 #define OPCODE_SRL 0x1B 86 #define OPCODE_NEXTPC 0x1C 87 #define OPCODE_CALLR 0x1D 88 #define OPCODE_XOR 0x1E 89 #define OPCODE_MULXSS 0x1F 90 91 #define OPCODE_CMPEQ 0x20 92 #define OPCODE_CMPLTU 0x30 93 #define OPCODE_ADD 0x31 94 #define OPCODE_DIVU 0x24 95 #define OPCODE_DIV 0x25 96 #define OPCODE_RDCTL 0x26 97 #define OPCODE_MUL 0x27 98 #define OPCODE_CMPGEU 0x28 99 #define OPCODE_TRAP 0x2D 100 #define OPCODE_WRCTL 0x2E 101 102 #define OPCODE_BREAK 0x34 103 #define OPCODE_SYNC 0x36 104 #define OPCODE_INITI 0x29 105 #define OPCODE_SUB 0x39 106 #define OPCODE_SRAI 0x3A 107 #define OPCODE_SRA 0x3B 108 109 /*Full instruction encodings for R-Type, without the R's ;-) 110 * 111 * TODO: BREAK, BRET, ERET, RET, SYNC (as needed) 112 */ 113 #define OPC_TRAP 0x003b683a 114 115 #endif /* __ASM_NIOS2_OPCODES_H_ */ 116