1 /* 2 * (C) Copyright 2004, Psyent Corporation <www.psyent.com> 3 * Scott McNutt <smcnutt@psyent.com> 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 24 #ifndef __ASM_NIOS2_OPCODES_H_ 25 #define __ASM_NIOS2_OPCODES_H_ 26 27 #define OPCODE_OP(inst) ((inst) & 0x3f) 28 #define OPCODE_OPX(inst) (((inst)>>11) & 0x3f) 29 #define OPCODE_RA(inst) (((inst)>>27) & 01f) 30 #define OPCODE_RB(inst) (((inst)>>22) & 01f) 31 #define OPCODE_RC(inst) (((inst)>>17) & 01f) 32 33 /* I-TYPE (immediate) and J-TYPE (jump) opcodes 34 */ 35 #define OPCODE_CALL 0x00 36 #define OPCODE_LDBU 0x03 37 #define OPCODE_ADDI 0x04 38 #define OPCODE_STB 0x05 39 #define OPCODE_BR 0x06 40 #define OPCODE_LDB 0x07 41 #define OPCODE_CMPGEI 0x08 42 #define OPCODE_LDHU 0x0B 43 #define OPCODE_ANDI 0x0C 44 #define OPCODE_STH 0x0D 45 #define OPCODE_BGE 0x0E 46 #define OPCODE_LDH 0x0F 47 #define OPCODE_CMPLTI 0x10 48 #define OPCODE_XORI 0x1C 49 #define OPCODE_ORI 0x14 50 #define OPCODE_STW 0x15 51 #define OPCODE_BLT 0x16 52 #define OPCODE_LDW 0x17 53 #define OPCODE_CMPNEI 0x18 54 #define OPCODE_BNE 0x1E 55 #define OPCODE_CMPEQI 0x20 56 #define OPCODE_LDBUIO 0x23 57 #define OPCODE_MULI 0x24 58 #define OPCODE_STBIO 0x25 59 #define OPCODE_BEQ 0x26 60 #define OPCODE_LDBIO 0x27 61 #define OPCODE_CMPGEUI 0x28 62 #define OPCODE_ANDHI 0x2C 63 #define OPCODE_STHIO 0x2D 64 #define OPCODE_BGEU 0x2E 65 #define OPCODE_LDHIO 0x2F 66 #define OPCODE_CMPLTUI 0x30 67 #define OPCODE_CUSTOM 0x32 68 #define OPCODE_INITD 0x33 69 #define OPCODE_ORHI 0x34 70 #define OPCODE_STWIO 0x35 71 #define OPCODE_BLTU 0x36 72 #define OPCODE_LDWIO 0x37 73 #define OPCODE_RTYPE 0x3A 74 #define OPCODE_LDHUIO 0x2B 75 #define OPCODE_FLUSHD 0x3B 76 #define OPCODE_XORHI 0x3C 77 78 /* R-Type (register) OPX field encodings 79 */ 80 #define OPCODE_ERET 0x01 81 #define OPCODE_ROLI 0x02 82 #define OPCODE_ROL 0x03 83 #define OPCODE_FLUSHP 0x04 84 #define OPCODE_RET 0x05 85 #define OPCODE_NOR 0x06 86 #define OPCODE_MULXUU 0x07 87 #define OPCODE_CMPGE 0x08 88 #define OPCODE_BRET 0x09 89 #define OPCODE_ROR 0x0B 90 #define OPCODE_FLUSHI 0x0C 91 #define OPCODE_JMP 0x0D 92 #define OPCODE_AND 0x0E 93 94 #define OPCODE_CMPLT 0x10 95 #define OPCODE_SLLI 0x12 96 #define OPCODE_SLL 0x13 97 #define OPCODE_OR 0x16 98 #define OPCODE_MULXSU 0x17 99 #define OPCODE_CMPNE 0x18 100 #define OPCODE_SRLI 0x1A 101 #define OPCODE_SRL 0x1B 102 #define OPCODE_NEXTPC 0x1C 103 #define OPCODE_CALLR 0x1D 104 #define OPCODE_XOR 0x1E 105 #define OPCODE_MULXSS 0x1F 106 107 #define OPCODE_CMPEQ 0x20 108 #define OPCODE_CMPLTU 0x30 109 #define OPCODE_ADD 0x31 110 #define OPCODE_DIVU 0x24 111 #define OPCODE_DIV 0x25 112 #define OPCODE_RDCTL 0x26 113 #define OPCODE_MUL 0x27 114 #define OPCODE_CMPGEU 0x28 115 #define OPCODE_TRAP 0x2D 116 #define OPCODE_WRCTL 0x2E 117 118 #define OPCODE_BREAK 0x34 119 #define OPCODE_SYNC 0x36 120 #define OPCODE_INITI 0x29 121 #define OPCODE_SUB 0x39 122 #define OPCODE_SRAI 0x3A 123 #define OPCODE_SRA 0x3B 124 125 /*Full instruction encodings for R-Type, without the R's ;-) 126 * 127 * TODO: BREAK, BRET, ERET, RET, SYNC (as needed) 128 */ 129 #define OPC_TRAP 0x003b683a 130 131 #endif /* __ASM_NIOS2_OPCODES_H_ */ 132