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-rw-r--r--include/asm-nios2/opcodes.h131
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diff --git a/include/asm-nios2/opcodes.h b/include/asm-nios2/opcodes.h
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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_ */