DDCPU-16 HCF In Practice

Niconico test video. Originally uploaded on YouTube at https://www.youtube.com/watch?v=a0qJYEcdio0 on April 26, 2012.Just an old video showing how my emulator ( https://github.com/bhelyer/DDCPU-16 ) for the DCPU-16 ( http://www.dcpu.com ) handles the HCF (Halt And Catch Fire) instruction, which causes things to go much slower and RAM to randomly change. This state can also be triggered if the interrupt queue overflows.(The blink isn't normally that fast -- the blink is toggled by the cycle count, and HCF causes things to take more cycles, and I do that by just bumping up the cycles count instantly, which means the monitor thinks more time has passed than actually has, hence super fast blink.)I haven't kept up with the DCPU-16 spec, so the above is out of date by now, I'm sure. I think there's a 3d projector now? One of these days (tm) I'll update it.

http://www.nicovideo.jp/watch/sm20587199