I picked up an enhanced IIe this weekend which doesn't have a 65C02 but a 6503. I never heard of this chip before. The most I found on the net about it says it is an 8-bit MPU made by Rockwell. Naturally, it is a 65C02 equivalent but does it have other features beyond those of the vanilla 65C02? Additional instructions, etc. ? Just curious. Ron rkneusel@mcw.edu