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I find it easiest to learn a new skill by having a small project to aim towards. It’s not very motivating following a set of documentation. There needs to be an end goal, it’s sort of like the difference between learning to drive by doing laps of a carpark, and learning to drive by getting out amongst the traffic.
In this video I learn how to program the Agon Light’s graphics system which is very similar to the BBC Micro’s graphics system. It uses a rather odd, but clever character control based graphics system. It’s like a mixture of ASCII control codes and a separate video subsystem.
Instead of directly writing to video RAM to draw things, the programmer sends ASCII control codes to the video hardware, giving it instructions.
