Something like the Indivision ECS, but for the C64 would be great. On Feb 26, 2012, at 7:40, Segher Boessenkool <email@example.com> wrote: >> Has any body tried to emulate one of the commodore video chip with a propeller ? >> >> I guess itís fast enough for the cbm8000Ö >> No idea for the vic 1 or vic 2 > > Not with a propeller, but with a fairly more powerful chip. It > can be done but isn't easy. > > The biggest problem in faithfully emulating a VIC-II on a CPU is > the pixel logic: 8M times per second you need to combine the eight > sprites and the video matrix using the multi-colour and priority > regs, select which colour to display, and update the sprite > collision registers. Everything else requires much less bandwidth: > if you have no sprites at all on the video chip you're emulating, > it's much easier. > > > Segher > > > Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing listReceived on 2012-02-26 17:00:09
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