Update: this repository is archived, the project is continued at urwasm

UWasm

Repository for presenting the work of our team on the Web Assembly interpreter on Urbit.

Usage

The repo contains two main parts: wasm desk for Urbit and jet testbed. To clone both:

git clone --recursive git@github.com:Quodss/wasm-hackathon.git

wasm desk

To use wasm desk:

1. Make a new desk (e.g. |new-desk %wasm) and mount it;
2. Clone the repo and copy the contents to your new desk;
3. |commit the desk
4. Run -test /=wasm=/tests ~ to run the unit tests.

The interpreter includes:

• .wasm binary file parser wasm-to-ast.hoon
• Main interpreter engine ast-interpreter.hoon
• Structure file sur/wasm.hoon with type definitions
• and other files, like a library for a subset of operators and .wasm files for the unit tests

The tests include both simple functions for numerical arithmetics and a bit more elaborated one for string manipulations. The interpreter is still a work in progress, so some instruction definitions might be missing in the interpreter, nor do the modules get parsed completely (imports are ignored)

Jet testbed

The jet testbed includes our Vere build that imports wasm3 Web Assembly interpreter in C. It also has its own base and wasm desks. We use ++was function defined in hoon.hoon for jet testing purposes. We haven't had enough time to turn it into a full jet, but some tests still could be run to verify that the interface between Vere and wasm3 works.

To use the jet testbed:

1. Clone repo for Vere
2. Checkout branch add-wasm3 and build Vere: bazel build :urbit
3. Boot a fakezod: ./vere/bazel-bin/pkg/vere/urbit -F zod
4. Mount %base desk. Make and mount %wasm desk
5. Copy the contents from respective directories and |commit them

Now you can run the tests with -test, and you can test the performance by evaluating Ackermann function in UWasm, the jet and in native Hoon (without caching): +wasm!ackermann

UWasm team

• ~dozreg-toplud
• ~wanref-rappet
• ~datful-samned
• ~motdeg-bintul