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/*
* (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_ */
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