Requires the riscv-gnu-toolchain (riscv64-unknown-elf-*)
make api [S3K_PATH=../s3k]
make all
By default, the makefile is configured so that the s3k repositort should
be a sibling, i.e., relative path to s3k should be ../s3k.
Requires qemu-system-riscv64
make qemu [S3K_PATH=../s3k]