Chris Pile wrote: >From: Simon Cooke (Exchange) <[EMAIL PROTECTED]> >>>Would make Simcoupe very nice if it could refresh at the proper rate... >> >>I'm willing to go for 60Hz refresh, if the PC can make sure the emulation >>runs a 50Hz frame's worth of processing in that time. > >Trouble is, things still won't look smooth... This is the main reason I don't >allow Defender to run under Simcoupe. > >I've nothing against Simcoupe, in fact I think emulators are great! It's just >that >Defender looks so bad 'jumping' along, when I know that it's dead smooth on a >real SAM... It's an ego thing really, I don't want people to think that I >couldn't >get the game to run at 50Hz!! ;-)
I think what Simon was saying, was that the Sam's 50Hz refresh would be speeded up to 60Hz and kept in time with the refresh rate of the monitor (rather than update the image at 50Hz on a screen refreshing at some other value. That's what my TV card does at the moment, actually. As well as munging adjacent horizontal lines, and ignoring every second field it gets, sigh). So a game refreshing at a perfect 50Hz on a Sam, would refresh at a perfect 60Hz on the emulator. Everything would still look smooth, but 20% too fast. That could be enough to make some games unplayably difficult, and would surely make music and sound effects sound very strange... especially sampled sounds! Would it be feasible to make 50Hz refresh an option, rather than a requirement? That way the emulation would be perfect for people with appropriate hardware. These days, I suspect most monitors would be happier syncing at 100Hz rather than 50Hz... which would be okay too, of course. Andrew -- | Andrew Collier | email [EMAIL PROTECTED] | Talk sense to a | Part 2 NatSci | http://carou.sel.cam.ac.uk/ | fool and he +----------------+-----------------------------+ calls you foolish | Selwyn College Student Computer Support Team | -- Euripides
