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question about CHD games, need help
the3eyedblindman:
Well what are some of the chds that run fine, and which ones dont?
MiKman:
As Hooch said there are many reasons mame and other platform emulators run slowly but one of the main reasons is that you are in essence generating code from the instructions from the ROM image that can be run natively on your computer. It's like NoOne=NBA= said you are not just running a program that was made for your intel PC. You are running a program that has nothing to do with windows or intel and cannot run on windows at all. So it needs to be interpretted first then converted and new code generated that will run on your PC and all this takes processing horsepower and is done 'on the fly' so to speak, so it all slows things down. And sometimes this whole interpretation routine isn't very clean. Mame, I'm sure, is as clean as it can get with the experts we have working on it :-). Sometimes it takes dozens of instructions to duplicate the function of a single original instruction for the Arcade game you are emulating. Crappy explanation I know but it's the best I can come up with...
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