A JIT assembler for x86/x64 architectures supporting advanced instruction sets up to AVX10.2
Xbyak is a C++ header-only library that enables dynamic assembly of x86/x64 instructions using mnemonics.
The pronunciation of Xbyak is /kʌɪbjæk/ (kai-byak).
The name is derived from the Japanese word 開闢 (kaibyaku), which means "the beginning of the world" or "creation".
- Header-only library
- Intel/MASM-like syntax
- Full support for AVX-512, APX, and AVX10.2
Note:
Use and_(), or_(), ... instead of and(), or().
If you want to use them, then specify -fno-operator-names option to gcc/clang.
- Xbyak_aarch64 : for AArch64
- Xbyak_riscv : for RISC-V
- Support AVX10.2
- Support xresldtrk/xsusldtrk
- Support RAO-INT for APX
- Support AVX10 detection, AESKLE, WIDE_KL, KEYLOCKER, KEYLOCKER_WIDE
- Support APX except for a few instructions
- Add amx_fp16/avx_vnni_int8/avx_ne_convert/avx-ifma
- Add movdiri, movdir64b, clwb, cldemote
- WAITPKG instructions (tpause, umonitor, umwait) are supported.
- MmapAllocator supports memfd with user-defined strings. see sample/memfd.cpp
- Strictly check address offset disp32 in a signed 32-bit integer. e.g.,
ptr[(void*)0xffffffff]causes an error.- Define
XBYAK_OLD_DISP_CHECKif you need an old check, but the option will be remoevd.
- Define
- Add
jmp(mem, T_FAR),call(mem, T_FAR)retf()for far absolute indirect jump. - VNNI instructions such as vpdpbusd supports vex encoding.
- (Break backward compatibility)
push(byte, imm)(resp.push(word, imm)) forces to castimmto 8(resp. 16) bit. - (Windows)
#include <winsock2.h>has been removed from xbyak.h, so add it explicitly if you need it. - Support exception-less mode see. Exception-less mode
XBYAK_USE_MMAP_ALLOCATORwill be defined on Linux/macOS unlessXBYAK_DONT_USE_MMAP_ALLOCATORis defined.
- Windows (Xp, Vista, 7, 10, 11) (32 / 64 bit)
- Linux (32 / 64 bit)
- macOS (Intel CPU)
Almost C++03 or later compilers for x86/x64 such as Visual Studio, g++, clang++, Intel C++ compiler and g++ on mingw/cygwin.