Usage: REPNE REPNZ Modifies flags: None Repeats execution of string instructions while CX != 0 and the Zero Flag is clear. CX is decremented and the Zero Flag tested after each string operation. The combination of a repeat prefix and a segment override on processors other than the 386 may result in errors if an interrupt occurs before CX=0. Clocks Size Operands 808x 286 386 486 Bytes none 2 2 2 1 - see Instruction Timing