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Diffstat (limited to 'include/asm-nios2/opcodes.h')
| -rw-r--r-- | include/asm-nios2/opcodes.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/include/asm-nios2/opcodes.h b/include/asm-nios2/opcodes.h new file mode 100644 index 0000000..211f8ba --- /dev/null +++ b/include/asm-nios2/opcodes.h @@ -0,0 +1,131 @@ +/* + * (C) Copyright 2004, Psyent Corporation <www.psyent.com> + * Scott McNutt <smcnutt@psyent.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * 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 2 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef __ASM_NIOS2_OPCODES_H_ +#define __ASM_NIOS2_OPCODES_H_ + +#define OPCODE_OP(inst) ((inst) & 0x3f) +#define OPCODE_OPX(inst) (((inst)>>11) & 0x3f) +#define OPCODE_RA(inst) (((inst)>>27) & 01f) +#define OPCODE_RB(inst) (((inst)>>22) & 01f) +#define OPCODE_RC(inst) (((inst)>>17) & 01f) + +/* I-TYPE (immediate) and J-TYPE (jump) opcodes + */ +#define OPCODE_CALL 0x00 +#define OPCODE_LDBU 0x03 +#define OPCODE_ADDI 0x04 +#define OPCODE_STB 0x05 +#define OPCODE_BR 0x06 +#define OPCODE_LDB 0x07 +#define OPCODE_CMPGEI 0x08 +#define OPCODE_LDHU 0x0B +#define OPCODE_ANDI 0x0C +#define OPCODE_STH 0x0D +#define OPCODE_BGE 0x0E +#define OPCODE_LDH 0x0F +#define OPCODE_CMPLTI 0x10 +#define OPCODE_XORI 0x1C +#define OPCODE_ORI 0x14 +#define OPCODE_STW 0x15 +#define OPCODE_BLT 0x16 +#define OPCODE_LDW 0x17 +#define OPCODE_CMPNEI 0x18 +#define OPCODE_BNE 0x1E +#define OPCODE_CMPEQI 0x20 +#define OPCODE_LDBUIO 0x23 +#define OPCODE_MULI 0x24 +#define OPCODE_STBIO 0x25 +#define OPCODE_BEQ 0x26 +#define OPCODE_LDBIO 0x27 +#define OPCODE_CMPGEUI 0x28 +#define OPCODE_ANDHI 0x2C +#define OPCODE_STHIO 0x2D +#define OPCODE_BGEU 0x2E +#define OPCODE_LDHIO 0x2F +#define OPCODE_CMPLTUI 0x30 +#define OPCODE_CUSTOM 0x32 +#define OPCODE_INITD 0x33 +#define OPCODE_ORHI 0x34 +#define OPCODE_STWIO 0x35 +#define OPCODE_BLTU 0x36 +#define OPCODE_LDWIO 0x37 +#define OPCODE_RTYPE 0x3A +#define OPCODE_LDHUIO 0x2B +#define OPCODE_FLUSHD 0x3B +#define OPCODE_XORHI 0x3C + +/* R-Type (register) OPX field encodings + */ +#define OPCODE_ERET 0x01 +#define OPCODE_ROLI 0x02 +#define OPCODE_ROL 0x03 +#define OPCODE_FLUSHP 0x04 +#define OPCODE_RET 0x05 +#define OPCODE_NOR 0x06 +#define OPCODE_MULXUU 0x07 +#define OPCODE_CMPGE 0x08 +#define OPCODE_BRET 0x09 +#define OPCODE_ROR 0x0B +#define OPCODE_FLUSHI 0x0C +#define OPCODE_JMP 0x0D +#define OPCODE_AND 0x0E + +#define OPCODE_CMPLT 0x10 +#define OPCODE_SLLI 0x12 +#define OPCODE_SLL 0x13 +#define OPCODE_OR 0x16 +#define OPCODE_MULXSU 0x17 +#define OPCODE_CMPNE 0x18 +#define OPCODE_SRLI 0x1A +#define OPCODE_SRL 0x1B +#define OPCODE_NEXTPC 0x1C +#define OPCODE_CALLR 0x1D +#define OPCODE_XOR 0x1E +#define OPCODE_MULXSS 0x1F + +#define OPCODE_CMPEQ 0x20 +#define OPCODE_CMPLTU 0x30 +#define OPCODE_ADD 0x31 +#define OPCODE_DIVU 0x24 +#define OPCODE_DIV 0x25 +#define OPCODE_RDCTL 0x26 +#define OPCODE_MUL 0x27 +#define OPCODE_CMPGEU 0x28 +#define OPCODE_TRAP 0x2D +#define OPCODE_WRCTL 0x2E + +#define OPCODE_BREAK 0x34 +#define OPCODE_SYNC 0x36 +#define OPCODE_INITI 0x29 +#define OPCODE_SUB 0x39 +#define OPCODE_SRAI 0x3A +#define OPCODE_SRA 0x3B + +/*Full instruction encodings for R-Type, without the R's ;-) + * + * TODO: BREAK, BRET, ERET, RET, SYNC (as needed) + */ +#define OPC_TRAP 0x003b683a + +#endif /* __ASM_NIOS2_OPCODES_H_ */ |