sawyer/picocalc-os-rs
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sawyer bristol
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# PicoCalc OS (Rust)
A simple operating system for the **Clockwork PicoCalc**, written in Rust.
A simple kernel and applications for the **Clockwork PicoCalc**, written in Rust.
This project provides a minimal kernel, ABI, and user-space applications to experiment with OS development on constrained hardware.
## Status
Basic synchronous applications are working great.
Current focus is on exanding applications and porting software, finding bufs in ffi, and making sure the kernel is as stable as possible.
Current focus is on exanding applications and porting software, finding bugs in ffi, and making sure the kernel is as stable as possible.
## Project Structure
- **`kernel/`** – The core OS kernel (task scheduling, drivers, memory, etc.)
- **`userlib_sys/`** – FFI bindings for kernel syscalls - kernel ↔ userspace (Repr "C")
- **`kernel/`** – The core OS kernel
- **`userlib_sys/`** – C FFI bindings for kernel syscall
- **`userlib/`** – Rust wrapper on top of `userlib_sys`
- **`picolib/`** – Built with ```just newlib```, and provides libc symbols when linking with C libraries
- **`user-apps/`** – Collection of userspace programs (gif player, wav player, calculator, snake, etc.)