Metalbrain said:
Speed depends on what's being executed, because some Z80 instructions take more time to be emulated, but most games should be ok with the default settings. For those that need a few more speed, you can overclock it higher (up to 220 IIRC) using the Vol+ button while you're at the settings menu, and then save their custom speeds together with the keyboard profile.
On the F200 all programs I have tried with the emulator had speed issues. I've read somewhere the F200 has problems with underclocking due to more power consumption by the touch screen.
Not seen this in another emulator, but I don't think I've used another emulator that underclocks the GP2X.
Your solution works great.
From the top of my head, I think Alexkidd2x and Picodrive also use underclocking, and MAME can underclock too, and those didn't have speed issues. :huh:
How many extra MHz's are needed on average to get the proper speed?
i quickly tested the overclock function taking it to 220 mhz .. tried manic miner tzx rom which played much better (the title screen music was almost recognizable !) .. but still slower than a real speccy.. maybe 250mhz would be close to the right speed, if thats any help.
