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Episode #078 - Write Only Registers
Most SID registers are write-only.
It means that we can't use the usual read-modify-store construction to update just part of a register.
The most common technique to deal with this problem is to employ so-called shadow registers.
And that's what we are going to learn today!
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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 :)
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