So, for my 6502/6510 emulator project I've been trying to figure out the best (read that, "fastest") way to get the time with nanosecond resolution. I need this because the North American version of the Commodore 64 ran at 1.02MHz (1,022,727Hz) and so that means the clock "ticks" every 977.8 nanoseconds. And that's just for … Continue reading Fastest Way To Get The Time
C128
How the VIC/64 Serial Port Works
By Jim Butterfield Originally published in Compute! July 1983 (page 178) The Serial bus connects VIC or Commodore 64 to its major peripherals, especially disk and tape. The workings of this interface have been a source of bafflement to most of us. We know that it's somehow related to the IEEE-488 bus which is used … Continue reading How the VIC/64 Serial Port Works
C64/128 Port Pinouts
I've decided to collect these from the Internet to save time looking for them. IEC Serial Port C64 - Wiki: Serial PortHow the VIC/64 Serial Port Works: Compute! July 1983 The Video/Audio Output Port Very early versions of the Commodore 64 did not have pins 6, 7, or 8. Commodore 128 RBGI Port Commodore 128 … Continue reading C64/128 Port Pinouts