shithub: riscv

ref: b7ab1354e3fdf32d2a587de00b4b324779b34b20
dir: /sys/src/9/

alphapc/
bcm/
bitsy/
boot/
ip/
kw/
mkfile
mtx/
omap/
omap4/
pc/
port/
ppc/
teg2/