Feral
Cwerg
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Feral | Cwerg | |
---|---|---|
1 | 59 | |
139 | 361 | |
0.7% | - | |
5.7 | 9.7 | |
3 months ago | 7 days ago | |
C++ | Python | |
MIT License | Apache License 2.0 |
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Feral
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What instructions are needed for a language vm
I have been working on my own VM (and language) as well and I decided to have only a small set of instructions that I wanted. I finalized on ~25 instructions. You can check them out here - https://github.com/Feral-Lang/Feral/blob/master/include/VM/OpCodes.hpp
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...
Somer examples are here:
https://github.com/robertmuth/Cwerg/tree/master/FrontEnd/Con...
This section contains a list of features that are unlikely to be added to the Cwerg backend:
https://github.com/robertmuth/Cwerg?tab=readme-ov-file#inten...
If you can live without them, it can be a replacement for LLVM.
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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"?
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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
- Features Compendium
What are some alternatives?
mir - A lightweight JIT compiler based on MIR (Medium Internal Representation) and C11 JIT compiler and interpreter based on MIR
tinycc - Unofficial mirror of mob development branch
asmjit - Low-latency machine code generation
bluebird - A work-in-progess programming language modeled after Ada and C++
asmdb - Instructions database and utilities for X86/X64 and ARM (THUMB/A32/A64) architectures.
gta5view - Open Source Snapmatic and Savegame viewer/editor for GTA V
langs
boring-lang - A very boring programming language
android-inline-hook - :fire: ShadowHook is an Android inline hook library which supports thumb, arm32 and arm64.
konna - A fast functional language based on two level type theory
mass - A compiler for a new language focusing on compile-time execution and no LLVM dependency.
yaal - Yet another abstraction layer - a general purpose C++ library.