Zitat von
hap
The CPU divider is from the address bus (in most cases, the CPU program counter). I assume it's due to slow EPROMs, similar how for example Mephisto Glasgow has wait states with DTACK.
Oh, that's a completely different thing. So this means that the CPU frequency is switched from f to f/2 (or f/4) whenever the EPROM is addressed and back again to f when addressing the RAM?
But this had to be done for almost every program step (since the program is executed from the EPROM), so isn't his extremely inefficient?
Wouldn't it be better/simpler then to just use a slower CPU frequency all the time?
Zitat von
berger
But when it comes to emulation... I don't have an opinion on that.
Well, I don't think that switching off the CPU divider would be any problem in the emulation - at least I've not yet run into any troubles doing it.