Does DEC (IX+N) affect the flag register or not? If so, I can save about 5-6 bytes in SQRXZ. TIA Thomas J. Hruska -- thruska@tir.com Shining Light Productions -- "Meeting the needs of fellow programmers" http://www.geocities.com/SiliconValley/Heights/8504 http://shinelight.home.ml.org