Post by brunni on Oct 15, 2005 19:05:32 GMT 1
Hello
First, I would like to thank you for this superb emulator
I did some research about the Media Engine, how we could use it into an emulator. For example, I thought about how to apply it to a genesis emulator (I don't know any one that runs at an acceptable framerate). It COULD be possible to move sound chips and maybe Z80 (horrible hack with IRQ/sync, I know, but should work in most cases as it's used only for sound).
But I have big problems with it, I write at uncached addresses, but it seems impossible to write and read from a variable with the two processors, even not at the same time, the behavior becomes unpredictable.
I saw here in the version 0.2 improve list:
2/Sound Emulation moved to the Media Engine. (hope a 10 to 15% increase in performance.)
Is it really done? It seems to be the only homebrew app which uses the ME. Is it possible to explain how you synchronize the two processors, share variables and large arrays, etc. or post some code please?
Thank you very much in advance
First, I would like to thank you for this superb emulator
I did some research about the Media Engine, how we could use it into an emulator. For example, I thought about how to apply it to a genesis emulator (I don't know any one that runs at an acceptable framerate). It COULD be possible to move sound chips and maybe Z80 (horrible hack with IRQ/sync, I know, but should work in most cases as it's used only for sound).
But I have big problems with it, I write at uncached addresses, but it seems impossible to write and read from a variable with the two processors, even not at the same time, the behavior becomes unpredictable.
I saw here in the version 0.2 improve list:
2/Sound Emulation moved to the Media Engine. (hope a 10 to 15% increase in performance.)
Is it really done? It seems to be the only homebrew app which uses the ME. Is it possible to explain how you synchronize the two processors, share variables and large arrays, etc. or post some code please?
Thank you very much in advance