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Posted By

Litwr
on 2013-07-06
15:43:11
 Re: Z80 GUI: SymbOS

Did you try to use z80 assember? 6502 has clearer style of fast and simple machine language which is similar to modern ARM CPU. 20MHz SuperCPU is 3-4 times faster than 20MHz z80. IMHO If SymOS is Open Source then it is easier to port it to 6502. It is curious will GEOS sources be opened sometime? Why are they still closed?
BTW ez80 can be clocked up to 50 MHz.
Again IMHO z80 at C128 was a great mistake of CBM. If they put two 8502 instead then it was much better decision.



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