asmjit
bf_jit
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asmjit
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The 6502 instruction set as a database
Some other instruction sets in some JSON: https://github.com/asmjit/asmjit/tree/master/db
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30 years of DOOM: new code, new bugs
The attentive reader may notice that this code is from a third-party library. So, we didn't want to include it in the article at first. However, we found something interesting. In 2017, somebody opened an issue in the asmjit project: the GCC 7.2 compiler issued a warning to the code above. The project authors fixed it:
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How do I get the registers of a process in C++?
You can use something like https://asmjit.com/ to generate and call x64 code at runtime.
- Ask HN: Recommendation for general purpose JIT compiler
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Compiler Design in C++
But an easy to create a JIT would be to use https://github.com/asmjit/asmjit, which is used in RPCS3.
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Are there any low level, cross platform assembly languages that allow jumping to non labels?
You could go the way of https://asmjit.com (or forth) and make it your assembler DSL on top of the low-level call.
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C++ libraries for filtering collections and expression trees
But if you're willing to get closer to the hardware is https://github.com/bitfunnel/nativejit/ and https://asmjit.com/
- AsmJit
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Wrapping dynamically generated void(*)() pointers in try-catch?
https://github.com/asmjit/asmjit is nice. But using a JIT seems like a sledgehammer working around a lacking design.
bf_jit
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Adventures in JIT compilation
I think writing a brainfuck JIT is a great hobby project for learning x86 assembly and the basics of how jit compilation of bytecode works. I also wrote an x64 jit for brainfuck in c++ ( https://github.com/ccapitalK/bf_jit ) , it's surprising how similar it ended up being architectured to the code written in part 2 of this post. It's moderately fast (runs mandelbrot in about 1.1 seconds, and runs towers of hanoi in about 0.2 seconds).
- bf_jit, my over-engineered x64 JIT compiler for Brainfuck
What are some alternatives?
fasmg - flat assembler g - adaptable assembly engine
blend2d - 2D Vector Graphics Engine Powered by a JIT Compiler
mir - A lightweight JIT compiler based on MIR (Medium Internal Representation) and C11 JIT compiler and interpreter based on MIR
jank - A Clojure dialect hosted on LLVM with native C++ interop
oneDNN - oneAPI Deep Neural Network Library (oneDNN)
vemips - MIPS32r6 Emulator
mlibc - Portable C standard library
mull - Practical mutation testing and fault injection for C and C++
dynarmic - An ARM dynamic recompiler.
fast_brainfuck.lua - High performance brainfuck transpiler/interpreter for Lua with FFI support. Very fast implementation with multiple optimization passes.
Cwerg - The best C-like language that can be implemented in 10kLOC.
skybison - A fork of Instagram's experimental performance oriented greenfield implementation of Python. It features small objects; a moving GC; hidden classes; bytecode inline caching; type-specialized bytecode; an experimental template JIT.