The easiest way to start programming Commodore 64
Learn BASIC and 6502 Assembly with bite-sized video tutorials.
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Episode #095 - Safe Branching
Often in programming Commodore 64, we need accurate and compact delay loops.
We usually create them using one of branching instructions.
Once we introduce such loop, our code can become fragile, since branches can take one cycle more if the jump lands on a different page than the next instruction.
And it can happen by accident if we add some code to before those instructions or if we relocate the program.
This can lead to frustrating debugging sessions since the compiler doesn't warn us about this problem automatically.
Today we will change that.
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I learned assembly the hard way, with only limited documentation. Although part of the fun is in discovering all these things yourself, I think such screencasts could have helped me in getting up to speed faster. They do contain some nice bits of information :)
64bites brings me closer to understanding a computer I learned to love long ago, and still do. More than anything, it is really fun to follow the lessons and I always look forward to the next episode with great anticipation. It is the best thing since chocolate.
I enjoyed both narration and realisation.
Actually, I was really shocked to have so much fun watching a programming screencast!
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