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- #!/bin/sh
- # 8-Bit ring rotation to the left
- VAL=$(($1&0xFF)) # limit mask to 8 bit
- while [ $((LOOP=$LOOP+1)) -le $2 ]; do
- HBIT=$((($VAL&0x80)>>7)) # extract highest bit (bit 7)
- VAL=$(((($VAL<<1)|HBIT)&0xFF)) # rotate left, mask to 8 bit
- done
- exec numeric.sh $VAL
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