# RISC-V 32-bit CPU - RV32I

Since there is a target in LLVM for rv32i, this CPU is able to run any C or Rust compiled program.

## How to program the RISC-V 32bit CPU with one of the provided programs

*Only Linux is supported and you need to have cargo, make and other build tools installed with support for the riscv32i-unknown-none-elf target.*

1. Go to a directory of a program.
2. Run `make` - it will put the output to `/tmp/text.bin` and `/tmp/rodata.bin`.
3. Select `LOAD .TEXT` in game.
4. Run the console command `loadram /tmp/text.bin`
5. Select `LOAD .RODATA` in game (unselect `LOAD .TEXT`).
6. Run the console command `loadram /tmp/rodata.bin`
7. Hit `RESET`

## Running

- Toggle the yellow lever to run the cpu continously or hit the button below it to step instructions.
- The gray lever activates stepping instructions using the Enter key (you must look at it)

## Debugging

- You can set a breakpoint on the left and the CPU will pause when the program counter reaches the target address