Cwerg
asmjit
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Cwerg | asmjit | |
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59 | 9 | |
395 | 3,792 | |
- | 1.5% | |
9.7 | 8.2 | |
5 days ago | 25 days ago | |
Python | C++ | |
Apache License 2.0 | zlib License |
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Cwerg
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Cwerg: C-like language that can be implemented in 10kLOC
Perhaps these have already been dealt with and I'm missing critical information. If so, my apologies. Great work, in any case.
[1] https://github.com/robertmuth/Cwerg/tree/master/FrontEnd#dis...
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Where can I find resources and guides on how to build compiler backends?
Cwerg has backend that can be used as JIT and is written with readability in mind. Additional documentation can be found here: https://github.com/robertmuth/Cwerg/tree/master/Docs
- Most important language features not touched in the book "Crafting Interpreters"?
- Lack of resources in creating Assemblers from scratch.
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Minimum ISA Capabilities to Support Most (Non-Interactive) Programs?
I defined a basic ISA-like IR for Cwerg. It has unlimited registers and no constraints on immediates.
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How do you design a compiler and a language?
entire compiler front end ast nodes
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Syntax Design
I was also going down the path of bike shedding concrete syntax for my language Cwerg before pulling the plug on that effort and just using s-exprs. I managed to make the s-expr quite succinct by carefully choosing the order of arguments so I can omit optional ones. Also very helpful was to use square brackets for list, e.g. (call fun-name [arg1 arg2]). This simplifies parsing a little bit and is easier on the eye. Here are some Code Examples
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November 2022 monthly "What are you working on?" thread
I am iterating over the languages features for Cwerg's Frontend which aims to be a low level language with about the complexity of C but with some of the comforts of modern languages. I am especially happy with the choice of adding sum types. Relative to C the current feature set looks like this: Removed: * arrays decay to pointers * bitfields * separate compilation (more of a backend issue) * pre-processor * varargs * implcit type conversions * (untagged) unions * ++/-- * comma operator * implicitly nullable pointers * goto
- typed asts and codegen
- Features Compendium
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.
What are some alternatives?
mir - A lightweight JIT compiler based on MIR (Medium Internal Representation) and C11 JIT compiler and interpreter based on MIR
fasmg - flat assembler g - adaptable assembly engine
tinycc - Unofficial mirror of mob development branch
bluebird - A work-in-progess programming language modeled after Ada and C++
oneDNN - oneAPI Deep Neural Network Library (oneDNN)
asmdb - Instructions database and utilities for X86/X64 and ARM (THUMB/A32/A64) architectures.
mlibc - Portable C standard library
konna - A fast functional language based on two level type theory
dynarmic - An ARM dynamic recompiler.
mass - A compiler for a new language focusing on compile-time execution and no LLVM dependency.
ChrysaLisp - Parallel OS, with GUI, Terminal, OO Assembler, Class libraries, C-Script compiler, Lisp interpreter and more...