ARM, RISC-V контроллеры

function bits(){
Ans=""
for x in $(seq 7 -1 0); do
B=$((1<<$x))
if [ $(($1&$B)) -ne 0 ]; then Ans="${Ans}X"
else Ans="${Ans}_"
fi
done
echo $Ans
}

for x in $(seq 0 255); do
printf "#define $(bits $x)\t0x%02x\n" $x
done