thumb.isa revision 7293:a907ebdb7ee9
1// -*- mode:c++ -*- 2 3// Copyright (c) 2010 ARM Limited 4// All rights reserved 5// 6// The license below extends only to copyright in the software and shall 7// not be construed as granting a license to any other intellectual 8// property including but not limited to intellectual property relating 9// to a hardware implementation of the functionality of the software 10// licensed hereunder. You may use the software subject to the license 11// terms below provided that you ensure that this notice is replicated 12// unmodified and in its entirety in all distributions of the software, 13// modified or unmodified, in source code or in binary form. 14// 15// Copyright (c) 2009 The Regents of The University of Michigan 16// All rights reserved. 17// 18// Redistribution and use in source and binary forms, with or without 19// modification, are permitted provided that the following conditions are 20// met: redistributions of source code must retain the above copyright 21// notice, this list of conditions and the following disclaimer; 22// redistributions in binary form must reproduce the above copyright 23// notice, this list of conditions and the following disclaimer in the 24// documentation and/or other materials provided with the distribution; 25// neither the name of the copyright holders nor the names of its 26// contributors may be used to endorse or promote products derived from 27// this software without specific prior written permission. 28// 29// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 30// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 31// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 32// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 33// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 34// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 35// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 36// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 37// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 38// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 39// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 40// 41// Authors: Gabe Black 42 431: decode BIGTHUMB { 44 // 16 bit thumb instructions. 45 0: decode TOPCODE_15_13 { 46 0x0, 0x1: Thumb16ShiftAddSubMoveCmp::thumb16ShiftAddMoveCmp(); 47 0x2: decode TOPCODE_12_10 { 48 0x0: Thumb16DataProcessing::thumb16DataProcessing(); 49 0x1: Thumb16SpecDataAndBx::thumb16SpecDataAndBx(); 50 0x2, 0x3: Thumb16MemLit::thumb16MemLit(); 51 default: Thumb16MemReg::thumb16MemReg(); 52 } 53 0x3, 0x4: Thumb16MemImm::thumb16MemImm(); 54 0x5: decode TOPCODE_12_11 { 55 0x0: Thumb16Adr::thumb16Adr(); 56 0x1: Thumb16AddSp::thumb16AddSp(); //sp, immediate 57 0x2, 0x3: Thumb16Misc::thumb16Misc(); 58 } 59 0x6: decode TOPCODE_12_11 { 60 0x0, 0x1: Thumb16MacroMem::thumb16MacroMem(); 61 0x2, 0x3: Thumb16CondBranchAndSvc::thumb16CondBranchAndSvc(); 62 } 63 0x7: decode TOPCODE_12_11 { 64 0x0: Thumb16UncondBranch::thumb16UncondBranch(); 65 } 66 } 67 68 // 32 bit thumb instructions. 69 1: decode HTOPCODE_12_11 { 70 0x1: decode HTOPCODE_10_9 { 71 0x0: decode HTOPCODE_6 { 72 0x0: decode HTOPCODE_8_7 { 73 0x0, 0x3: Thumb32SrsRfe::thumb32SrsRfe(); 74 // This uses the same encoding as regular ARM. 75 default: ArmMacroMem::armMacroMem(); 76 } 77 0x1: Thumb32LdrStrDExTbh::thumb32LdrStrDExTbh(); 78 } 79 0x1: Thumb32DataProcShiftReg::thumb32DataProcShiftReg(); 80 default: decode HTOPCODE_9_8 { 81 0x2: decode LTOPCODE_4 { 82 0x0: decode LTCOPROC { 83 0xa, 0xb: decode OPCODE_23_20 { 84##include "vfp.isa" 85 } 86 default: WarnUnimpl::cdp(); // cdp2 87 } 88 0x1: decode LTCOPROC { 89 0xa, 0xb: WarnUnimpl::Core_to_extension_transfer(); 90 default: decode CPNUM { 91 15: McrMrc15::mcrMrc15(); 92 default: decode HTOPCODE_4 { 93 0x0: WarnUnimpl::mcr(); 94 0x1: WarnUnimpl::mrc(); 95 } 96 } 97 } 98 } 99 0x3: WarnUnimpl::Advanced_SIMD(); 100 default: decode LTCOPROC { 101 0xa, 0xb: decode HTOPCODE_9_4 { 102 0x00: Unknown::undefined(); 103 0x04: WarnUnimpl::mcrr(); // mcrr2 104 0x05: WarnUnimpl::mrrc(); // mrrc2 105 0x02, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10, 106 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e: 107 WarnUnimpl::stc(); // stc2 108 0x03, 0x07, 0x09, 0x0b, 0x0d, 0x0f, 0x11, 109 0x13, 0x15, 0x17, 0x19, 0x1b, 0x1d, 0x1f: 110 decode HTRN { 111 0xf: WarnUnimpl::ldc(); // ldc2 (literal) 112 default: WarnUnimpl::ldc(); // ldc2 (immediate) 113 } 114 } 115 default: decode HTOPCODE_9_5 { 116 0x00: Unknown::undefined(); 117 0x02: WarnUnimpl::SIMD_VFP_64_bit_core_extension_transfer(); 118 0x01, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 119 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f: 120 WarnUnimpl::Extension_register_load_store_instruction(); 121 } 122 } 123 } 124 } 125 0x2: decode LTOPCODE_15 { 126 0x0: decode HTOPCODE_9 { 127 0x0: Thumb32DataProcModImm::thumb32DataProcModImm(); 128 0x1: Thumb32DataProcPlainBin::thumb32DataProcPlainBin(); 129 } 130 0x1: Thumb32BranchesAndMiscCtrl::thumb32BranchesAndMiscCtrl(); 131 } 132 0x3: decode HTOPCODE_10_9 { 133 0x0: decode HTOPCODE_4 { 134 0x0: decode HTOPCODE_8 { 135 0x0: Thumb32StoreSingle::thumb32StoreSingle(); 136 0x1: WarnUnimpl::Advanced_SIMD_or_structure_load_store(); 137 } 138 0x1: decode HTOPCODE_6_5 { 139 0x0: LoadByteMemoryHints::loadByteMemoryHints(); 140 0x1: LoadHalfwordMemoryHints::loadHalfwordMemoryHints(); 141 0x2: Thumb32LoadWord::thumb32LoadWord(); 142 0x3: Unknown::undefined(); 143 } 144 } 145 0x1: decode HTOPCODE_8_7 { 146 0x2: Thumb32MulMulAccAndAbsDiff::thumb32MulMulAccAndAbsDiff(); 147 0x3: Thumb32LongMulMulAccAndDiv::thumb32LongMulMulAccAndDiv(); 148 default: Thumb32DataProcReg::thumb32DataProcReg(); 149 } 150 default: decode HTOPCODE_9_8 { 151 0x2: decode LTOPCODE_4 { 152 0x0: decode LTCOPROC { 153 0xa, 0xb: WarnUnimpl::VFP_Inst(); 154 default: WarnUnimpl::cdp(); // cdp2 155 } 156 0x1: decode LTCOPROC { 157 0xa, 0xb: WarnUnimpl::Core_to_extension_transfer(); 158 default: decode CPNUM { 159 15: McrMrc15::mcr2Mrc215(); 160 default: decode HTOPCODE_4 { 161 0x0: WarnUnimpl::mcr2(); 162 0x1: WarnUnimpl::mrc2(); 163 } 164 } 165 } 166 } 167 0x3: WarnUnimpl::Advanced_SIMD(); 168 default: decode LTCOPROC { 169 0xa, 0xb: decode HTOPCODE_9_4 { 170 0x00: Unknown::undefined(); 171 0x04: WarnUnimpl::mcrr(); // mcrr2 172 0x05: WarnUnimpl::mrrc(); // mrrc2 173 0x02, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10, 174 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e: 175 WarnUnimpl::stc(); // stc2 176 0x03, 0x07, 0x09, 0x0b, 0x0d, 0x0f, 0x11, 177 0x13, 0x15, 0x17, 0x19, 0x1b, 0x1d, 0x1f: 178 decode HTRN { 179 0xf: WarnUnimpl::ldc(); // ldc2 (literal) 180 default: WarnUnimpl::ldc(); // ldc2 (immediate) 181 } 182 } 183 default: decode HTOPCODE_9_5 { 184 0x00: Unknown::undefined(); 185 0x02: WarnUnimpl::SIMD_VFP_64_bit_core_extension_transfer(); 186 0x01, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 187 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f: 188 WarnUnimpl::Extension_register_load_store_instruction(); 189 } 190 } 191 } 192 } 193 } 194} 195