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410 lines
8.8 KiB
410 lines
8.8 KiB
/* $NetBSD: mips_opcode.h,v 1.12 2005/12/11 12:18:09 christos Exp $ */ |
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/*- |
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* Copyright (c) 1992, 1993 |
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* The Regents of the University of California. All rights reserved. |
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* |
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* This code is derived from software contributed to Berkeley by |
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* Ralph Campbell. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the University nor the names of its contributors |
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* may be used to endorse or promote products derived from this software |
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* without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* @(#)mips_opcode.h 8.1 (Berkeley) 6/10/93 |
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*/ |
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/* |
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* Define the instruction formats and opcode values for the |
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* MIPS instruction set. |
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*/ |
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#include <endian.h> |
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/* |
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* Define the instruction formats. |
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*/ |
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typedef union { |
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unsigned word; |
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#if BYTE_ORDER == LITTLE_ENDIAN |
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struct { |
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unsigned imm: 16; |
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unsigned rt: 5; |
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unsigned rs: 5; |
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unsigned op: 6; |
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} IType; |
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struct { |
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unsigned target: 26; |
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unsigned op: 6; |
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} JType; |
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struct { |
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unsigned func: 6; |
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unsigned shamt: 5; |
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unsigned rd: 5; |
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unsigned rt: 5; |
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unsigned rs: 5; |
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unsigned op: 6; |
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} RType; |
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struct { |
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unsigned func: 6; |
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unsigned fd: 5; |
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unsigned fs: 5; |
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unsigned ft: 5; |
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unsigned fmt: 4; |
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unsigned : 1; /* always '1' */ |
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unsigned op: 6; /* always '0x11' */ |
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} FRType; |
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#endif |
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#if BYTE_ORDER == BIG_ENDIAN |
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struct { |
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unsigned op: 6; |
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unsigned rs: 5; |
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unsigned rt: 5; |
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unsigned imm: 16; |
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} IType; |
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struct { |
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unsigned op: 6; |
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unsigned target: 26; |
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} JType; |
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struct { |
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unsigned op: 6; |
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unsigned rs: 5; |
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unsigned rt: 5; |
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unsigned rd: 5; |
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unsigned shamt: 5; |
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unsigned func: 6; |
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} RType; |
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struct { |
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unsigned op: 6; /* always '0x11' */ |
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unsigned : 1; /* always '1' */ |
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unsigned fmt: 4; |
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unsigned ft: 5; |
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unsigned fs: 5; |
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unsigned fd: 5; |
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unsigned func: 6; |
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} FRType; |
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#endif |
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} InstFmt; |
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/* |
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* Values for the 'op' field. |
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*/ |
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#define OP_SPECIAL 000 |
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#define OP_BCOND 001 |
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#define OP_J 002 |
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#define OP_JAL 003 |
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#define OP_BEQ 004 |
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#define OP_BNE 005 |
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#define OP_BLEZ 006 |
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#define OP_BGTZ 007 |
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#if __mips_isa_rev < 6 |
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#define OP_ADDI 010 |
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#else |
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#define OP_POP10 010 |
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#endif |
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#define OP_ADDIU 011 |
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#define OP_SLTI 012 |
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#define OP_SLTIU 013 |
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#define OP_ANDI 014 |
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#define OP_ORI 015 |
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#define OP_XORI 016 |
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#if __mips_isa_rev < 6 |
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#define OP_LUI 017 |
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#else |
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#define OP_AUI 017 |
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#endif |
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#define OP_COP0 020 |
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#define OP_COP1 021 |
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#define OP_COP2 022 |
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#if __mips_isa_rev < 6 |
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#define OP_COP3 023 |
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#define OP_BEQL 024 |
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#define OP_BNEL 025 |
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#define OP_BLEZL 026 |
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#define OP_BGTZL 027 |
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#define OP_DADDI 030 |
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#else |
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#define OP_POP26 026 |
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#define OP_POP27 027 |
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#define OP_POP30 030 |
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#endif |
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#define OP_DADDIU 031 |
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#if __mips_isa_rev < 6 |
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#define OP_LDL 032 |
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#define OP_LDR 033 |
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#define OP_SPECIAL2 034 |
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#else |
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#define OP_DAUI 035 |
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#endif |
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#define OP_SPECIAL3 037 |
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#define OP_LB 040 |
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#define OP_LH 041 |
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#if __mips_isa_rev < 6 |
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#define OP_LWL 042 |
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#endif |
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#define OP_LW 043 |
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#define OP_LBU 044 |
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#define OP_LHU 045 |
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#define OP_LWR 046 |
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#define OP_LHU 045 |
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#if __mips_isa_rev < 6 |
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#define OP_LWR 046 |
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#endif |
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#define OP_LWU 047 |
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#define OP_SB 050 |
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#define OP_SH 051 |
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#if __mips_isa_rev < 6 |
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#define OP_SWL 052 |
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#endif |
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#define OP_SW 053 |
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#if __mips_isa_rev < 6 |
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#define OP_SDL 054 |
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#define OP_SDR 055 |
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#define OP_SWR 056 |
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#define OP_CACHE 057 |
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#define OP_LL 060 |
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#define OP_LWC0 OP_LL |
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#define OP_LWC1 061 |
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#define OP_LWC2 062 |
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#define OP_LWC3 063 |
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#define OP_LLD 064 |
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#else |
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#define OP_LWC1 061 |
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#define OP_BC 062 |
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#endif |
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#define OP_LDC1 065 |
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#define OP_LD 067 |
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#if __mips_isa_rev < 6 |
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#define OP_SC 070 |
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#define OP_SWC0 OP_SC |
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#endif |
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#define OP_SWC1 071 |
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#if __mips_isa_rev < 6 |
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#define OP_SWC2 072 |
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#define OP_SWC3 073 |
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#define OP_SCD 074 |
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#else |
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#define OP_BALC 072 |
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#endif |
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#define OP_SDC1 075 |
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#define OP_SD 077 |
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/* |
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* Values for the 'func' field when 'op' == OP_SPECIAL. |
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*/ |
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#define OP_SLL 000 |
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#define OP_SRL 002 |
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#define OP_SRA 003 |
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#define OP_SLLV 004 |
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#define OP_SRLV 006 |
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#define OP_SRAV 007 |
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#if __mips_isa_rev < 6 |
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#define OP_JR 010 |
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#endif |
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#define OP_JALR 011 |
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#define OP_SYSCALL 014 |
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#define OP_BREAK 015 |
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#define OP_SYNC 017 |
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#if __mips_isa_rev < 6 |
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#define OP_MFHI 020 |
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#define OP_MTHI 021 |
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#define OP_MFLO 022 |
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#define OP_MTLO 023 |
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#else |
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#define OP_CLZ 020 |
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#define OP_CLO 021 |
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#define OP_DCLZ 022 |
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#define OP_DCLO 023 |
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#endif |
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#define OP_DSLLV 024 |
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#define OP_DSRLV 026 |
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#define OP_DSRAV 027 |
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#if __mips_isa_rev < 6 |
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#define OP_MULT 030 |
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#define OP_MULTU 031 |
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#define OP_DIV 032 |
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#define OP_DIVU 033 |
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#define OP_DMULT 034 |
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#define OP_DMULTU 035 |
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#define OP_DDIV 036 |
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#define OP_DDIVU 037 |
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#else |
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#define OP_SOP30 030 |
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#define OP_SOP31 031 |
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#define OP_SOP32 032 |
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#define OP_SOP33 033 |
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#define OP_SOP34 034 |
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#define OP_SOP35 035 |
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#define OP_SOP36 036 |
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#define OP_SOP37 037 |
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#endif |
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#define OP_ADD 040 |
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#define OP_ADDU 041 |
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#define OP_SUB 042 |
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#define OP_SUBU 043 |
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#define OP_AND 044 |
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#define OP_OR 045 |
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#define OP_XOR 046 |
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#define OP_NOR 047 |
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#define OP_SLT 052 |
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#define OP_SLTU 053 |
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#define OP_DADD 054 |
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#define OP_DADDU 055 |
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#define OP_DSUB 056 |
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#define OP_DSUBU 057 |
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#define OP_TGE 060 |
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#define OP_TGEU 061 |
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#define OP_TLT 062 |
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#define OP_TLTU 063 |
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#define OP_TEQ 064 |
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#define OP_TNE 066 |
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#define OP_DSLL 070 |
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#define OP_DSRL 072 |
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#define OP_DSRA 073 |
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#define OP_DSLL32 074 |
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#define OP_DSRL32 076 |
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#define OP_DSRA32 077 |
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#if __mips_isa_rev < 6 |
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/* |
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* Values for the 'func' field when 'op' == OP_SPECIAL2. |
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* OP_SPECIAL2 opcodes are removed in mips32r6 |
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*/ |
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#define OP_MAD 000 /* QED */ |
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#define OP_MADU 001 /* QED */ |
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#define OP_MUL 002 /* QED */ |
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#endif |
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/* |
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* Values for the 'func' field when 'op' == OP_SPECIAL3. |
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*/ |
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#define OP_EXT 000 |
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#define OP_DEXTM 001 |
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#define OP_DEXTU 002 |
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#define OP_DEXT 003 |
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#define OP_INS 004 |
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#define OP_DINSM 005 |
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#define OP_DINSU 006 |
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#define OP_DINS 007 |
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#define OP_BSHFL 040 |
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#define OP_RDHWR 073 |
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/* |
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* Values for the 'shamt' field when OP_SPECIAL3 && func OP_BSHFL. |
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*/ |
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#define OP_WSBH 002 |
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#define OP_SEB 020 |
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#define OP_SEH 030 |
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#if __mips_isa_rev == 6 |
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/* |
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* Values for the 'shamt' field when OP_SOP30. |
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*/ |
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#define OP_MUL 002 |
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#define OP_MUH 003 |
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#endif |
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/* |
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* Values for the 'func' field when 'op' == OP_BCOND. |
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*/ |
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#define OP_BLTZ 000 |
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#define OP_BGEZ 001 |
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#if __mips_isa_rev < 6 |
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#define OP_BLTZL 002 |
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#define OP_BGEZL 003 |
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#define OP_TGEI 010 |
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#define OP_TGEIU 011 |
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#define OP_TLTI 012 |
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#define OP_TLTIU 013 |
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#define OP_TEQI 014 |
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#define OP_TNEI 016 |
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#define OP_BLTZAL 020 |
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#define OP_BGEZAL 021 |
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#define OP_BLTZALL 022 |
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#define OP_BGEZALL 023 |
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#else |
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#define OP_NAL 020 |
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#define OP_BAL 021 |
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#endif |
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/* |
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* Values for the 'rs' field when 'op' == OP_COPz. |
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*/ |
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#define OP_MF 000 |
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#define OP_DMF 001 |
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#define OP_MT 004 |
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#define OP_DMT 005 |
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#define OP_BCx 010 |
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#define OP_BCy 014 |
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#define OP_CF 002 |
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#define OP_CT 006 |
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/* |
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* Values for the 'rt' field when 'op' == OP_COPz. |
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*/ |
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#define COPz_BC_TF_MASK 0x01 |
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#define COPz_BC_TRUE 0x01 |
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#define COPz_BC_FALSE 0x00 |
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#define COPz_BCL_TF_MASK 0x02 |
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#define COPz_BCL_TRUE 0x02 |
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#define COPz_BCL_FALSE 0x00
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