Examples from the Web for octal
The contents of octal digits 0-5 of the index register location are unaffected by this instruction.
Normally, the machine would require 36 bits or 12 octal digits to be written for each instruction used in the machine.
Memory registers 1-777 (octal) are available for use as normal memory registers if they are not being used as index registers.
This instruction will rotate the bits of the Accumulator right N positions, where N is octal digits 7-11 of the instructions word.