shithub: riscv

ref: 974c4fc768c12af947af13de75c227ef7e6ca50d
dir: /sys/src/9/

alphapc/
bcm/
bitsy/
boot/
ip/
kw/
mkfile
mtx/
omap/
omap4/
pc/
pc64/
port/
ppc/
sgi/
teg2/
xen/
zynq/