fox-tools/gcc/README.md
Ry eec12a9e9a gcc: Implement ROM/OS calls
Co-authored-by: Lua MacDougall <lua@foxgirl.dev>
2023-02-06 19:50:50 -08:00

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# Compiling C code for fox32
How does this work?
- GCC compiles your C code with `riscv*-gcc -S hello.c -march=rv32im -mabi=ilp32 -O2`
- `rv2fox` converts the generated RISC-V assembly to fox32 assembly
- `fox32asm` makes an FXF binary
## Generating bindings.c
bindings.kts is a little Kotlin script which generates bindings.c.
Ensure you have Kotlin installed on your system, then run `./bindings.kts > bindings.c`
## TODO:
- commandline argument passing
- testcase sha256 program that hashes the ROM
- rust support: `rustc --emit asm --target riscv32im-unknown-none-elf test.rs -O`