| // -*- mode:c++ -*- |
| |
| // Copyright (c) 2010-2012 ARM Limited |
| // All rights reserved |
| // |
| // The license below extends only to copyright in the software and shall |
| // not be construed as granting a license to any other intellectual |
| // property including but not limited to intellectual property relating |
| // to a hardware implementation of the functionality of the software |
| // licensed hereunder. You may use the software subject to the license |
| // terms below provided that you ensure that this notice is replicated |
| // unmodified and in its entirety in all distributions of the software, |
| // modified or unmodified, in source code or in binary form. |
| // |
| // Copyright (c) 2009 The Regents of The University of Michigan |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer; |
| // 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; |
| // neither the name of the copyright holders 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 COPYRIGHT HOLDERS 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 COPYRIGHT |
| // OWNER 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. |
| |
| decode BIGTHUMB { |
| // 16 bit thumb instructions. |
| 0: decode TOPCODE_15_13 { |
| 0x0, 0x1: Thumb16ShiftAddSubMoveCmp::thumb16ShiftAddMoveCmp(); |
| 0x2: decode TOPCODE_12_10 { |
| 0x0: Thumb16DataProcessing::thumb16DataProcessing(); |
| 0x1: Thumb16SpecDataAndBx::thumb16SpecDataAndBx(); |
| 0x2, 0x3: Thumb16MemLit::thumb16MemLit(); |
| default: Thumb16MemReg::thumb16MemReg(); |
| } |
| 0x3, 0x4: Thumb16MemImm::thumb16MemImm(); |
| 0x5: decode TOPCODE_12_11 { |
| 0x0: Thumb16Adr::thumb16Adr(); |
| 0x1: Thumb16AddSp::thumb16AddSp(); //sp, immediate |
| 0x2, 0x3: Thumb16Misc::thumb16Misc(); |
| } |
| 0x6: decode TOPCODE_12_11 { |
| 0x0, 0x1: Thumb16MacroMem::thumb16MacroMem(); |
| 0x2, 0x3: Thumb16CondBranchAndSvc::thumb16CondBranchAndSvc(); |
| } |
| 0x7: decode TOPCODE_12_11 { |
| 0x0: Thumb16UncondBranch::thumb16UncondBranch(); |
| } |
| } |
| |
| // 32 bit thumb instructions. |
| 1: decode HTOPCODE_12_11 { |
| 0x1: decode HTOPCODE_10_9 { |
| 0x0: decode HTOPCODE_6 { |
| 0x0: decode HTOPCODE_8_7 { |
| 0x0, 0x3: Thumb32SrsRfe::thumb32SrsRfe(); |
| // This uses the same encoding as regular ARM. |
| default: ArmMacroMem::armMacroMem(); |
| } |
| 0x1: Thumb32LdrStrDExTbh::thumb32LdrStrDExTbh(); |
| } |
| 0x1: Thumb32DataProcShiftReg::thumb32DataProcShiftReg(); |
| default: decode HTOPCODE_9_8 { |
| 0x2: decode LTOPCODE_4 { |
| 0x0: decode LTCOPROC { |
| 0xa, 0xb: VfpData::vfpData(); |
| default: WarnUnimpl::cdp(); // cdp2 |
| } |
| 0x1: decode LTCOPROC { |
| 0x1: Gem5Op::gem5op(); |
| 0xa, 0xb: ShortFpTransfer::shortFpTransfer(); |
| 0xe: McrMrc14::mcrMrc14(); |
| 0xf: McrMrc15::mcrMrc15(); |
| } |
| } |
| 0x3: ThumbNeonData::ThumbNeonData(); |
| default: decode LTCOPROC { |
| 0xa, 0xb: ExtensionRegLoadStore::extensionRegLoadStre(); |
| 0xf: decode HTOPCODE_9_4 { |
| 0x00: Unknown::undefined(); |
| 0x04: decode LTCOPROC { |
| 0xf: Mcrr15::Mcrr15(); |
| default: WarnUnimpl::mcrr(); // mcrr2 |
| } |
| 0x05: decode LTCOPROC { |
| 0xf: Mrrc15::Mrrc15(); |
| default: WarnUnimpl::mrrc(); // mrrc2 |
| } |
| 0x02, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10, |
| 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e: |
| WarnUnimpl::stc(); // stc2 |
| 0x03, 0x07, 0x09, 0x0b, 0x0d, 0x0f, 0x11, |
| 0x13, 0x15, 0x17, 0x19, 0x1b, 0x1d, 0x1f: |
| decode HTRN { |
| 0xf: WarnUnimpl::ldc(); // ldc2 (literal) |
| default: WarnUnimpl::ldc(); // ldc2 (immediate) |
| } |
| } |
| } |
| } |
| } |
| 0x2: decode LTOPCODE_15 { |
| 0x0: decode HTOPCODE_9 { |
| 0x0: Thumb32DataProcModImm::thumb32DataProcModImm(); |
| 0x1: Thumb32DataProcPlainBin::thumb32DataProcPlainBin(); |
| } |
| 0x1: Thumb32BranchesAndMiscCtrl::thumb32BranchesAndMiscCtrl(); |
| } |
| 0x3: decode HTOPCODE_10_9 { |
| 0x0: decode HTOPCODE_4 { |
| 0x0: decode HTOPCODE_8 { |
| 0x0: Thumb32StoreSingle::thumb32StoreSingle(); |
| 0x1: ThumbNeonMem::thumbNeonMem(); |
| } |
| 0x1: decode HTOPCODE_6_5 { |
| 0x0: LoadByteMemoryHints::loadByteMemoryHints(); |
| 0x1: LoadHalfwordMemoryHints::loadHalfwordMemoryHints(); |
| 0x2: Thumb32LoadWord::thumb32LoadWord(); |
| } |
| } |
| 0x1: decode HTOPCODE_8_7 { |
| 0x2: Thumb32MulMulAccAndAbsDiff::thumb32MulMulAccAndAbsDiff(); |
| 0x3: Thumb32LongMulMulAccAndDiv::thumb32LongMulMulAccAndDiv(); |
| default: Thumb32DataProcReg::thumb32DataProcReg(); |
| } |
| 0x2: Thumb32NeonSIMD::thumb32NeonSIMD(); |
| default: decode HTOPCODE_9_8 { |
| 0x2: decode LTOPCODE_4 { |
| 0x0: decode LTCOPROC { |
| 0x8: Thumb32NeonSIMD::thumb32NeonSIMD(); |
| 0xa, 0xb: VfpData::vfpData(); |
| default: WarnUnimpl::cdp(); // cdp2 |
| } |
| 0x1: decode LTCOPROC { |
| 0x1: Gem5Op::gem5op(); |
| 0xa, 0xb: ShortFpTransfer::shortFpTransfer(); |
| 0xe: McrMrc14::mcrMrc14(); |
| 0xf: McrMrc15::mcrMrc15(); |
| } |
| } |
| 0x3: ThumbNeonData::thumbNeonData(); |
| default: decode LTCOPROC { |
| 0xa, 0xb: ExtensionRegLoadStore::extensionRegLoadStre(); |
| 0xf: decode HTOPCODE_9_4 { |
| 0x00: Unknown::undefined(); |
| 0x04: WarnUnimpl::mcrr(); // mcrr2 |
| 0x05: WarnUnimpl::mrrc(); // mrrc2 |
| 0x02, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10, |
| 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e: |
| WarnUnimpl::stc(); // stc2 |
| 0x03, 0x07, 0x09, 0x0b, 0x0d, 0x0f, 0x11, |
| 0x13, 0x15, 0x17, 0x19, 0x1b, 0x1d, 0x1f: |
| decode HTRN { |
| 0xf: WarnUnimpl::ldc(); // ldc2 (literal) |
| default: WarnUnimpl::ldc(); // ldc2 (immediate) |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
