zkWasm-C

About C template for ZKWASM:

This is a project template for constructing wasm program for ZKWASM using C language. It contains two directories which are ./sdk and ./proejct.

1. sdk directory: Contains basic built-in c libraries and head files.
2. project directory: Contains an example project that can be compiled into a wasm output.

Usage:

You can modify the code in ./project directory and use make to compile the project into output.wasm.

Building Requirement:

You need clang (better with version 15) to compile and link C code into wasm.

Run the output:

The output.wasm file is a standard web assembly image that can be run using any wasm interpreter which provides necessary host functions. Currently, there are three main scenarios:

1. run the wasm image in a web environment for web games and generates instances for proof generation. (An example can be found at https://github.com/ZhenXunGe/g1024).
2. run the wasm image in a backend environment with zkWASM virtual machine and generate proofs for on-chain verification. (See https://github.com/DelphinusLab/zkWasm for the command line usage of zkWASM virtual machine)
3. run the wasm image in LAYER-TWO that supports zkWASM (currently ZKCross) and let ZCcross do the tedious work of synchronizing and settlement in a cross-chain manner.