Keyboard polling test idea

[xotmatrix]

Keyboard polling test idea

[xotmatrix]

I've been remaking my emulator's keyboard handler and studying schematics and thinking about this code again and wondering how it could reasonably work on real hardware. So I tested it and it's just a bad on the real thing. Often it just not does respond to key presses, as you might expect from looking at it. I don't know what Mr. Xerox was thinking with this code which appears twice in his crack.

My new keyboard emulation is much more accurate despite only running once per frame. If I invoked it at an interval of some multiple of 11 cycles, the length of the loop, I might get in trouble but I don't see any reason why this should be a test.