ISCAL Symbol Table loop 3 fac 13 test 15 input_word_loc -1 input_status_loc -2 output_word_loc -3 output_status_loc -4 io_setup 19 input 24 output 31 Register Usage return 0 result 1 arg1 2 jump_target 3 zero 4 input_word 5 input_status 6 output_word 7 output_status 8 temp 9