3 ms·

You might also want to check out someone building a computer based off a 6502, very fun to see someone going through the steps to design and build something out

• vidarh 14y ago
  Part of the appeal to me of this hardware is that it is so simple that even without much electronics experience you can get away with a lot more trial and error while learning. I did all kinds of crazy things with my C64 and got away with it without breaking stuff, like powering it off batteries (the C64 takes multiple different voltages in, but you can get away with just one - don't remember if it was 5v or 9v - just that some things like the user port and realtime clock won't work) and attaching leds and relays to the user port without a clue what I was doing, replacing the IO chips (CIA) with a different version from my 1541 disk drive when one of the ones in the C64 broke (standard troubleshooting: If the CIA chips were hot right after turning the machine on, they had short-circuited - they were the source of breakage on C64's and Amiga's...), and at a later point with one from my Amiga (they're all pin compatible, but some functionality is different, e.g. the Amiga version has a 32 bit timer instead of the realtime clock nobody used...), or replacing the 6510 in my C64 with a 6502 from a 1541 just to see what would happen (the 6510 has 8 general purpose IO lines, mapped to the tape drive IO and I think bank switching - I believe the machine will still start but...) On my Amiga I at one point made a pause switch by soldering stuff straight onto a pin on the CPU...