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Diffstat (limited to 'lib/arch/riscv64/README.md')
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diff --git a/lib/arch/riscv64/README.md b/lib/arch/riscv64/README.md new file mode 100644 index 0000000..517ddb2 --- /dev/null +++ b/lib/arch/riscv64/README.md @@ -0,0 +1,12 @@ +# riscv64 (RISC-V ELF) +Provide an implementation of the platform specific API as required in +[`api.h`](../api.h) according to the `RISC-V ELF ABI`. + +## Notes: RISC-V ABI +- Integer/pointer arguments via `x10 - x17` +- Integer/pointer return values via `x10` - `x11` +- Callee saved registers `x2`, `x8` - `x9`, `x18` - `x27`, `f8` - `f9`, `f18` - `f27` + +## References +- [RISC-V ABI](https://github.com/riscv/riscv-elf-psabi-doc/blob/master/riscv-elf.md) +- [RISC-V asm manual](https://github.com/riscv/riscv-asm-manual/blob/master/riscv-asm.md) |