Cameron Kaiser wrote:
>
> But even with this artificial concept, the 6502 is still running through
> instructions in fewer average clock cycles. Granted, the Z80 has a good
> selection of more complex instructions that take fewer clock cycles than
> the equivalent 6502 code in total. How often they get employed for this
> advantage, however, directly affects their run-time impact of course.
One real problem with the Z80 is that a there is a lot of
unused/undefined
instructions because of the complex instruction set, that have been
decoded
and used in software. This has a impact if you are not using a real chip
but a emulator of some sort.
--
Ben Franchuk --- Pre-historic Cpu's --
www.jetnet.ab.ca/users/bfranchuk/index.html
Received on Wed Dec 19 2001 - 22:18:15 GMT