7 lines
259 B
Plaintext
7 lines
259 B
Plaintext
set a bit in $DD00, Return from subroutine, read $DD00
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$DD00 is a key IO register for the IEC serial port.
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Thus it is no surprise to find routines that manipulate $DD00,
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and indeed for them to appear one after the other.
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Nothing creative. Not copyrightable.
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