Skip on ZERO Accumulator(5 usec.)
sza Address 100
If the Accumulator is equal to plus ZERO (all bits are ZERO) the Program Counter is advanced one extra position and the next instruction in the sequence is skipped.
Skip on Plus Accumulator(5 usec.)
spa Address 200
If the sign bit of the Accumulator is ZERO, the Program Counter is advanced one extra position and the next instruction in the sequence is skipped.
Skip on Minus Accumulator(5 usec.)
sma Address 400
If the sign bit of the Accumulator is ONE, the Program Counter is advanced one extra position and the next instruction in the sequence is skipped.
Skip on ZERO Overflow(5 usec.)
szo Address 1000
If the overflow flip-flop is a ZERO the Program Counter is advanced one extra position and the next instruction in the sequence will be skipped. The overflow flip-flop is cleared by this instruction. This flip-flop is set by addition, subtraction, or division that exceeds the capacity of the Accumulator. The overflow flip-flop is not cleared by arithmetic operations which do not cause an overflow. Thus, a whole series of arithmetic operations may be checked for correctness by a single szo. The overflow flip-flop is cleared by the "Start" Switch.
Skip on Plus In-Out Register(5 usec.)
spi Address 2000
If the sign digit of the In-Out Register is ZERO the Program Counter is indexed one extra position and the next instruction in the sequence is skipped.