I'm just getting started with the propeller and electronics.· Has anyone tried to make a system, using the propeller, that will·read old Intellivision cartridges and function like one?
Given that the Intellivision's CPU ran at under 1 MHz it should be practical to emulate it with a cog, but it might have to be emulated in a way that preserves cycle timing of the original; there are several emulators for the PC online so one could always check out the source code for one of the open ones. Some of the smart support logic (like Intellivoice) might be a little harder. I've done some Atari 2600 programming and can say it would be quite hard to emulate Stella, because you not only have to get the 6510 logic right you have to get all the timing cycle-clock perfect or nothing will work.
Check out Intelliwiki for details of the Inty's hardware.· Although it might be possible to emulate it using the Propeller, there will be some considerable challenges with no guarantee of success.
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Composite NTSC sprite driver: Forum
NTSC & PAL driver templates: ObExForum
OnePinTVText driver: ObExForum
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Composite NTSC sprite driver: Forum
NTSC & PAL driver templates: ObEx Forum
OnePinTVText driver: ObEx Forum