I have new CP/M cartridge for use with Commodore 128 - asking you: why? C128 has Z80!
Yes true for using C128 without SCPU. I own SCPU and it at power on takes control over all and it's impossible to switch to C128's Z80. So, I tried CP/M cartridge and results were amazing.
Z80 works in both modes - 128 and 64, for 64 mode is here CP/M 2.2, CP/M 3.0 in 128 mode is possible to run only with turned off SCPU. Ok, but when is SCPU turned off C128 has available to use 3 CPUs: 8502, Z80 inside C128, Z80 inside CP/M cartridge... so X65 and X80 families.
When is SCPU turned on available are 2 CPUs - and for both modes (128 and 64): 65816 and Z80 inside CP/M cartridge, this means 65K and X80 famiies, so variability of C128 is excellent - most vesatile computer ever made...
You're asking why I'm writting about C128 - this is M65 forum...
Making possible handling SCPU and CP/M cartridge can make Mega 65 more effective computer, 65CE02 in C65 mode, 6502 incl. illegal opcodes in C64 mode, Z80 inside cartridge and 65816 in SCPU - these CPUs are available and it means 65X, X65, 65K and X80 families which open door to new dimension...
So, please don't be angry, I wanted to write possibilities which can or cannot be real...
Miro