5 hours ago, Elektron72 said:
If you are asking about assembling programs for the X16 using an assembler that only has support for the original 6502, there should be no problems; the 65C02 is almost entirely backwards-compatible with the 6502 (excluding bugs and undocumented instructions). In fact, it is likely that an assembly program designed for the C64 that does not directly access the hardware would run properly on the X16 due to the kernal remaining compatible.
On the other hand, if you are asking about using an original 6502 instead of the 65C02 as the CPU of the X16, this would cause issues; any program using newer instructions would likely not function on an original 6502, and the original 6502 has a much lower clock speed than the 65C02.
Thanks a lot this has answered my question. I am a little bit sad I cannot run the X16 with my 6502 here, the 65C02 is quite expensive...
But the trouble was shot, thanks a lot. I have just ordered in mouser W65C02S6TPG-14 and W65C22S6TPG-14 for that.
