Today I spent some more time on the Atari course. I don’t want to totally lose track xD I configured dasm to output symbol files so that I get address names in the Stella debugger. Then I started learning about NTSC frame synchronization and I’m wondering about the electron beam. So in a CRT display, the electron beam scans left to right, then down, and repeats until it’s covered the whole display. I wonder if it’s possible to somehow manually control the beam. Why must the beam go left to right? Why not in circles or other shapes?
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