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Diffstat (limited to 'disas/libvixl/a64/disasm-a64.h')
-rw-r--r-- | disas/libvixl/a64/disasm-a64.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/disas/libvixl/a64/disasm-a64.h b/disas/libvixl/a64/disasm-a64.h new file mode 100644 index 0000000..857a5ac --- /dev/null +++ b/disas/libvixl/a64/disasm-a64.h @@ -0,0 +1,109 @@ +// Copyright 2013, ARM Limited +// 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 ARM Limited 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 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. + +#ifndef VIXL_A64_DISASM_A64_H +#define VIXL_A64_DISASM_A64_H + +#include "globals.h" +#include "utils.h" +#include "instructions-a64.h" +#include "decoder-a64.h" + +namespace vixl { + +class Disassembler: public DecoderVisitor { + public: + Disassembler(); + Disassembler(char* text_buffer, int buffer_size); + virtual ~Disassembler(); + char* GetOutput(); + + // Declare all Visitor functions. + #define DECLARE(A) void Visit##A(Instruction* instr); + VISITOR_LIST(DECLARE) + #undef DECLARE + + protected: + virtual void ProcessOutput(Instruction* instr); + + private: + void Format(Instruction* instr, const char* mnemonic, const char* format); + void Substitute(Instruction* instr, const char* string); + int SubstituteField(Instruction* instr, const char* format); + int SubstituteRegisterField(Instruction* instr, const char* format); + int SubstituteImmediateField(Instruction* instr, const char* format); + int SubstituteLiteralField(Instruction* instr, const char* format); + int SubstituteBitfieldImmediateField(Instruction* instr, const char* format); + int SubstituteShiftField(Instruction* instr, const char* format); + int SubstituteExtendField(Instruction* instr, const char* format); + int SubstituteConditionField(Instruction* instr, const char* format); + int SubstitutePCRelAddressField(Instruction* instr, const char* format); + int SubstituteBranchTargetField(Instruction* instr, const char* format); + int SubstituteLSRegOffsetField(Instruction* instr, const char* format); + int SubstitutePrefetchField(Instruction* instr, const char* format); + + inline bool RdIsZROrSP(Instruction* instr) const { + return (instr->Rd() == kZeroRegCode); + } + + inline bool RnIsZROrSP(Instruction* instr) const { + return (instr->Rn() == kZeroRegCode); + } + + inline bool RmIsZROrSP(Instruction* instr) const { + return (instr->Rm() == kZeroRegCode); + } + + inline bool RaIsZROrSP(Instruction* instr) const { + return (instr->Ra() == kZeroRegCode); + } + + bool IsMovzMovnImm(unsigned reg_size, uint64_t value); + + void ResetOutput(); + void AppendToOutput(const char* string, ...); + + char* buffer_; + uint32_t buffer_pos_; + uint32_t buffer_size_; + bool own_buffer_; +}; + + +class PrintDisassembler: public Disassembler { + public: + explicit PrintDisassembler(FILE* stream) : stream_(stream) { } + ~PrintDisassembler() { } + + protected: + virtual void ProcessOutput(Instruction* instr); + + private: + FILE *stream_; +}; +} // namespace vixl + +#endif // VIXL_A64_DISASM_A64_H |