When I was 12 I took the Commodore VIC-20 Programmer's reference guide to spain on vacation (!) for 2 weeks. I figured out how to program assembly and hand-assembled a short program to rapidly toggle the screen color from black-to-white.
Hmm if I try real hard I can probably recreate it here:
169 0 141 15 144 169 1 141 15 144 76 0 32
Anyway, when I got home, I tried it out. It changes the screen color, but then crashed because of a mistake in the loop instruction.
That was definitely an AHA moment - realizing how CPU's work.
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When I was 12 I took the Commodore VIC-20 Programmer's reference guide to spain on vacation (!) for 2 weeks. I figured out how to program assembly and hand-assembled a short program to rapidly toggle the screen color from black-to-white.
Hmm if I try real hard I can probably recreate it here: 169 0 141 15 144 169 1 141 15 144 76 0 32
Anyway, when I got home, I tried it out. It changes the screen color, but then crashed because of a mistake in the loop instruction.
That was definitely an AHA moment - realizing how CPU's work.