mirror of https://github.com/x64dbg/zydis
90 lines
2.8 KiB
Markdown
90 lines
2.8 KiB
Markdown
Zyan Disassembler Engine (Zydis)
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================================
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Fast and lightweight x86/x86-64 disassembler library.
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## Features ##
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- Supports all x86 and x86-64 (AMD64) general-purpose and system instructions.
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- Supported ISA extensions:
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- FPU (x87), MMX
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- SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AESNI
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- AVX, AVX2, AVX512BW, AVX512CD, AVX512DQ, AVX512ER, AVX512F, AVX512PF, AVX512VL
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- ADX, BMI1, BMI2, FMA, FMA4
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- ..
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- Optimized for high performance
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- No dynamic memory allocation
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- Perfect for kernel-mode drivers and embedded devices
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- Very small file-size overhead compared to other common disassembler libraries
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- Language bindings
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- C++, Delphi, Python, ..
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- Complete doxygen documentation
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## Quick Example ##
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The following example program uses Zydis to disassemble a given memory buffer and prints the output to the console.
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```C
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#include <stdio.h>
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#include <Zydis/Zydis.h>
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int main()
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{
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uint8_t data[] =
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{
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0x51, 0x8D, 0x45, 0xFF, 0x50, 0xFF, 0x75, 0x0C, 0xFF, 0x75,
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0x08, 0xFF, 0x15, 0xA0, 0xA5, 0x48, 0x76, 0x85, 0xC0, 0x0F,
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0x88, 0xFC, 0xDA, 0x02, 0x00
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};
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ZydisMemoryInput input;
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ZydisInputInitMemoryInput(&input, &data, sizeof(data));
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ZydisInstructionDecoder decoder;
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ZydisDecoderInitInstructionDecoderEx(&decoder, ZYDIS_DISASSEMBLER_MODE_64BIT,
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(ZydisCustomInput*)&input, ZYDIS_DECODER_FLAG_SKIP_DATA);
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ZydisDecoderSetInstructionPointer(&decoder, 0x007FFFFFFF400000);
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ZydisInstructionFormatter formatter;
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ZydisFormatterInitInstructionFormatterEx(&formatter,
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ZYDIS_FORMATTER_STYLE_INTEL, ZYDIS_FORMATTER_FLAG_ALWAYS_DISPLAY_MEMORY_SEGMENT);
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ZydisInstructionInfo info;
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char buffer[256];
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while (ZYDIS_SUCCESS(ZydisDecoderDecodeNextInstruction(&decoder, &info)))
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{
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printf("%016llX ", info.instrAddress);
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if (info.flags & ZYDIS_IFLAG_ERROR_MASK)
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{
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printf(" db %02x\n", info.data[0]);
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continue;
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}
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ZydisFormatterFormatInstruction(&formatter, &info, &buffer[0], sizeof(buffer));
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printf(" %s\n", &buffer[0]);
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}
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}
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```
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## Sample Output ##
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The above example program generates the following output:
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```
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007FFFFFFF400000 push rcx
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007FFFFFFF400001 lea eax, dword ptr ss:[rbp-0x01]
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007FFFFFFF400004 push rax
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007FFFFFFF400005 push qword ptr ss:[rbp+0x0C]
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007FFFFFFF400008 push qword ptr ss:[rbp+0x08]
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007FFFFFFF40000B call qword ptr ds:[0x008000007588A5B1]
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007FFFFFFF400011 test eax, eax
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007FFFFFFF400013 js 0x007FFFFFFF42DB15
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```
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## Compilation ##
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Zydis builds cleanly on most platforms without any external dependencies. You can use CMake to generate project files for your favorite C99 compiler.
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## License ##
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Zyan Disassembler Engine is licensed under the MIT License. Dependencies are under their respective licenses.
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