Product Launch
anonymous
1 points
14 comments
Posted29 days agoActive28 days ago
Tiny VM
github.commvplibrarydevelopers
Key Features
Tiny VM sandboxSupports multiple programming languages (Rust, C, Zig)
Tech Stack
CRust
Key Features
Tech Stack
This looks like it has a smaller code footprint at least. I'm not sure RISC-V is a very good target for this sort of thing. E.g. decoding the immediates in software is going to be very slow, whereas in hardware it's fast.
But on the other hand it is a stable target and can be configured to be a lot simpler than WASM.
WASM is great because it is not tied to a particular language and WASI is designed to make the WASM sandbox even more portable.
I like the single C file, but Docker if you want all the examples approach, that's really convenient for embedded.
Test coverage looks good as well, be interesting to see the metrics.
This would be quite cool for adding scripting to medical devices, avoiding the need to revalidate the "core" each time you change a feature.
An interesting comparison would be against an embedded WASM bytecode interpreter like https://github.com/bytecodealliance/wasm-micro-runtime, which is still much larger at 56.3K on a Cortex M4F. Maybe WASM is just a more complicated instruction set than the smallest RISCV profile?
Have you considered adding support for memory-mapped IO simulation? That would make it useful for testing IoT/microcontroller drivers without the actual hardware.
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