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All Projects → Becavalier → TWVM

Becavalier / TWVM

Licence: MIT license
A tiny, lightweight and efficient WebAssembly virtual machine.

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TWVM

TWVM is still under continuously construction, not production-ready yet!

GitHub Actions status

A tiny, lightweight, and efficient WebAssembly virtual machine.

Getting Started

Compile & Install

Please install the following softwares beforehand:

Then, run the following command to compile and install:

npm run build

How to use?

You can use the below command to invoke an exported function from a WebAssemly binary module:

# Invoke function `fib` with value 10.
twvm ./tests/modules/fibonacci.wasm -i=fib,10  # 55.

For further information, please run the below command for help:

twvm -h

Other Information

  • Limitations:

Currently, TWVM can only run standard WebAssembly binary modules with the instructions in MVP standard. Also, please make sure the module doesn't require any import objects (.e.g memory, function, table, and etc).

  • Memory Check:

Install "valgrind" on MacOS according to the following articles first:

How to Install Valgrind on macOS High Sierra

Valgrind on macOS 10.14/10.15

And then, run the below command to check the memory leak of the program:

npm run memcheck

Roadmap

  • Architecture refactoring.
  • Run simple fibonacci function successfully.
  • Full Wasm spec version 1.0 support.
  • Pass all basic testcases.
  • DCT optimization.
  • WAT support.

Copyright and License

Licensed under the MIT License.

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