| /* $NetBSD: mips_opcode.h,v 1.12 2005/12/11 12:18:09 christos Exp $ */ |
| |
| /*- |
| * Copyright (c) 1992, 1993 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * This code is derived from software contributed to Berkeley by |
| * Ralph Campbell. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * @(#)mips_opcode.h 8.1 (Berkeley) 6/10/93 |
| */ |
| |
| /* |
| * Define the instruction formats and opcode values for the |
| * MIPS instruction set. |
| */ |
| |
| #include <endian.h> |
| |
| /* |
| * Define the instruction formats. |
| */ |
| typedef union { |
| unsigned word; |
| |
| #if BYTE_ORDER == LITTLE_ENDIAN |
| struct { |
| unsigned imm: 16; |
| unsigned rt: 5; |
| unsigned rs: 5; |
| unsigned op: 6; |
| } IType; |
| |
| struct { |
| unsigned target: 26; |
| unsigned op: 6; |
| } JType; |
| |
| struct { |
| unsigned func: 6; |
| unsigned shamt: 5; |
| unsigned rd: 5; |
| unsigned rt: 5; |
| unsigned rs: 5; |
| unsigned op: 6; |
| } RType; |
| |
| struct { |
| unsigned func: 6; |
| unsigned fd: 5; |
| unsigned fs: 5; |
| unsigned ft: 5; |
| unsigned fmt: 4; |
| unsigned : 1; /* always '1' */ |
| unsigned op: 6; /* always '0x11' */ |
| } FRType; |
| #endif |
| #if BYTE_ORDER == BIG_ENDIAN |
| struct { |
| unsigned op: 6; |
| unsigned rs: 5; |
| unsigned rt: 5; |
| unsigned imm: 16; |
| } IType; |
| |
| struct { |
| unsigned op: 6; |
| unsigned target: 26; |
| } JType; |
| |
| struct { |
| unsigned op: 6; |
| unsigned rs: 5; |
| unsigned rt: 5; |
| unsigned rd: 5; |
| unsigned shamt: 5; |
| unsigned func: 6; |
| } RType; |
| |
| struct { |
| unsigned op: 6; /* always '0x11' */ |
| unsigned : 1; /* always '1' */ |
| unsigned fmt: 4; |
| unsigned ft: 5; |
| unsigned fs: 5; |
| unsigned fd: 5; |
| unsigned func: 6; |
| } FRType; |
| #endif |
| } InstFmt; |
| |
| /* |
| * Values for the 'op' field. |
| */ |
| #define OP_SPECIAL 000 |
| #define OP_BCOND 001 |
| #define OP_J 002 |
| #define OP_JAL 003 |
| #define OP_BEQ 004 |
| #define OP_BNE 005 |
| #define OP_BLEZ 006 |
| #define OP_BGTZ 007 |
| |
| #define OP_ADDI 010 |
| #define OP_ADDIU 011 |
| #define OP_SLTI 012 |
| #define OP_SLTIU 013 |
| #define OP_ANDI 014 |
| #define OP_ORI 015 |
| #define OP_XORI 016 |
| #define OP_LUI 017 |
| |
| #define OP_COP0 020 |
| #define OP_COP1 021 |
| #define OP_COP2 022 |
| #define OP_COP3 023 |
| #define OP_BEQL 024 /* MIPS-II, for r4000 port */ |
| #define OP_BNEL 025 /* MIPS-II, for r4000 port */ |
| #define OP_BLEZL 026 /* MIPS-II, for r4000 port */ |
| #define OP_BGTZL 027 /* MIPS-II, for r4000 port */ |
| |
| #define OP_DADDI 030 /* MIPS-II, for r4000 port */ |
| #define OP_DADDIU 031 /* MIPS-II, for r4000 port */ |
| #define OP_LDL 032 /* MIPS-II, for r4000 port */ |
| #define OP_LDR 033 /* MIPS-II, for r4000 port */ |
| |
| #define OP_SPECIAL2 034 /* QED opcodes */ |
| #define OP_SPECIAL3 037 /* mips32r2 opcodes */ |
| |
| #define OP_LB 040 |
| #define OP_LH 041 |
| #define OP_LWL 042 |
| #define OP_LW 043 |
| #define OP_LBU 044 |
| #define OP_LHU 045 |
| #define OP_LWR 046 |
| #define OP_LHU 045 |
| #define OP_LWR 046 |
| #define OP_LWU 047 /* MIPS-II, for r4000 port */ |
| |
| #define OP_SB 050 |
| #define OP_SH 051 |
| #define OP_SWL 052 |
| #define OP_SW 053 |
| #define OP_SDL 054 /* MIPS-II, for r4000 port */ |
| #define OP_SDR 055 /* MIPS-II, for r4000 port */ |
| #define OP_SWR 056 |
| #define OP_CACHE 057 /* MIPS-II, for r4000 port */ |
| |
| #define OP_LL 060 |
| #define OP_LWC0 OP_LL /* backwards source compatibility */ |
| #define OP_LWC1 061 |
| #define OP_LWC2 062 |
| #define OP_LWC3 063 |
| #define OP_LLD 064 /* MIPS-II, for r4000 port */ |
| #define OP_LDC1 065 |
| #define OP_LD 067 /* MIPS-II, for r4000 port */ |
| |
| #define OP_SC 070 |
| #define OP_SWC0 OP_SC /* backwards source compatibility */ |
| #define OP_SWC1 071 |
| #define OP_SWC2 072 |
| #define OP_SWC3 073 |
| #define OP_SCD 074 /* MIPS-II, for r4000 port */ |
| #define OP_SDC1 075 |
| #define OP_SD 077 /* MIPS-II, for r4000 port */ |
| |
| /* |
| * Values for the 'func' field when 'op' == OP_SPECIAL. |
| */ |
| #define OP_SLL 000 |
| #define OP_SRL 002 |
| #define OP_SRA 003 |
| #define OP_SLLV 004 |
| #define OP_SRLV 006 |
| #define OP_SRAV 007 |
| |
| #define OP_JR 010 |
| #define OP_JALR 011 |
| #define OP_SYSCALL 014 |
| #define OP_BREAK 015 |
| #define OP_SYNC 017 /* MIPS-II, for r4000 port */ |
| |
| #define OP_MFHI 020 |
| #define OP_MTHI 021 |
| #define OP_MFLO 022 |
| #define OP_MTLO 023 |
| #define OP_DSLLV 024 /* MIPS-II, for r4000 port */ |
| #define OP_DSRLV 026 /* MIPS-II, for r4000 port */ |
| #define OP_DSRAV 027 /* MIPS-II, for r4000 port */ |
| |
| #define OP_MULT 030 |
| #define OP_MULTU 031 |
| #define OP_DIV 032 |
| #define OP_DIVU 033 |
| #define OP_DMULT 034 /* MIPS-II, for r4000 port */ |
| #define OP_DMULTU 035 /* MIPS-II, for r4000 port */ |
| #define OP_DDIV 036 /* MIPS-II, for r4000 port */ |
| #define OP_DDIVU 037 /* MIPS-II, for r4000 port */ |
| |
| #define OP_ADD 040 |
| #define OP_ADDU 041 |
| #define OP_SUB 042 |
| #define OP_SUBU 043 |
| #define OP_AND 044 |
| #define OP_OR 045 |
| #define OP_XOR 046 |
| #define OP_NOR 047 |
| |
| #define OP_SLT 052 |
| #define OP_SLTU 053 |
| #define OP_DADD 054 /* MIPS-II, for r4000 port */ |
| #define OP_DADDU 055 /* MIPS-II, for r4000 port */ |
| #define OP_DSUB 056 /* MIPS-II, for r4000 port */ |
| #define OP_DSUBU 057 /* MIPS-II, for r4000 port */ |
| |
| #define OP_TGE 060 /* MIPS-II, for r4000 port */ |
| #define OP_TGEU 061 /* MIPS-II, for r4000 port */ |
| #define OP_TLT 062 /* MIPS-II, for r4000 port */ |
| #define OP_TLTU 063 /* MIPS-II, for r4000 port */ |
| #define OP_TEQ 064 /* MIPS-II, for r4000 port */ |
| #define OP_TNE 066 /* MIPS-II, for r4000 port */ |
| |
| #define OP_DSLL 070 /* MIPS-II, for r4000 port */ |
| #define OP_DSRL 072 /* MIPS-II, for r4000 port */ |
| #define OP_DSRA 073 /* MIPS-II, for r4000 port */ |
| #define OP_DSLL32 074 /* MIPS-II, for r4000 port */ |
| #define OP_DSRL32 076 /* MIPS-II, for r4000 port */ |
| #define OP_DSRA32 077 /* MIPS-II, for r4000 port */ |
| |
| /* |
| * Values for the 'func' field when 'op' == OP_SPECIAL2. |
| */ |
| #define OP_MAD 000 /* QED */ |
| #define OP_MADU 001 /* QED */ |
| #define OP_MUL 002 /* QED */ |
| |
| /* |
| * Values for the 'func' field when 'op' == OP_SPECIAL3. |
| */ |
| #define OP_EXT 000 |
| #define OP_INS 004 |
| #define OP_BSHFL 040 |
| |
| /* |
| * Values for the 'shamt' field when OP_SPECIAL3 && func OP_BSHFL. |
| */ |
| #define OP_WSBH 002 |
| #define OP_SEB 020 |
| #define OP_SEH 030 |
| |
| /* |
| * Values for the 'func' field when 'op' == OP_BCOND. |
| */ |
| #define OP_BLTZ 000 |
| #define OP_BGEZ 001 |
| #define OP_BLTZL 002 /* MIPS-II, for r4000 port */ |
| #define OP_BGEZL 003 /* MIPS-II, for r4000 port */ |
| |
| #define OP_TGEI 010 /* MIPS-II, for r4000 port */ |
| #define OP_TGEIU 011 /* MIPS-II, for r4000 port */ |
| #define OP_TLTI 012 /* MIPS-II, for r4000 port */ |
| #define OP_TLTIU 013 /* MIPS-II, for r4000 port */ |
| #define OP_TEQI 014 /* MIPS-II, for r4000 port */ |
| #define OP_TNEI 016 /* MIPS-II, for r4000 port */ |
| |
| #define OP_BLTZAL 020 /* MIPS-II, for r4000 port */ |
| #define OP_BGEZAL 021 |
| #define OP_BLTZALL 022 |
| #define OP_BGEZALL 023 |
| |
| /* |
| * Values for the 'rs' field when 'op' == OP_COPz. |
| */ |
| #define OP_MF 000 |
| #define OP_DMF 001 /* MIPS-II, for r4000 port */ |
| #define OP_MT 004 |
| #define OP_DMT 005 /* MIPS-II, for r4000 port */ |
| #define OP_BCx 010 |
| #define OP_BCy 014 |
| #define OP_CF 002 |
| #define OP_CT 006 |
| |
| /* |
| * Values for the 'rt' field when 'op' == OP_COPz. |
| */ |
| #define COPz_BC_TF_MASK 0x01 |
| #define COPz_BC_TRUE 0x01 |
| #define COPz_BC_FALSE 0x00 |
| #define COPz_BCL_TF_MASK 0x02 /* MIPS-II, for r4000 port */ |
| #define COPz_BCL_TRUE 0x02 /* MIPS-II, for r4000 port */ |
| #define COPz_BCL_FALSE 0x00 /* MIPS-II, for r4000 port */ |
