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ADAC: Skip Blank Icon
Used by the routine at QueueProgram.
Moves on to the screen address of the next icon when an entry of the queue is blank. This is part of QueueProgram, which it rejoins.
Input
HL Screen address of the icon
Output
HL Screen address of the next icon
SkipBlankIcon ADAC LD A,L Fetch the low byte of the screen address...
ADAD ADD A,$04 ...add four to it, to move four characters to the right...
ADAF LD L,A ...and store it.
ADB0 JR QueueProgram_Next Jump to move on to the next entry of the queue.
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