>my code was closed when I pointed out that the errors Andy was getting >were originated from a misconfiguration of his MPASM. He was simulating >using a 16C84 (36 byte of RAM) but the "original TEA" code uses _37_ >bytes... Switching to the prescribed 16F84 showed the correctness of the >implementation. I remember that now. Sorry for the forgetfulness. Andy ================================================================== Andy Kunz - Statistical Research, Inc. - Westfield, New Jersey USA ==================================================================