Skool Daze Routines
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44520: Slide pixel column into graphic buffer
Used by the routines at 44776 and 45937.
A Pixel column
44520 EXX
44521 LD HL,23551 Point HL' at the end of the graphic buffer (23296-23551)
44524 LD C,8 There are 8 pixel rows in the graphic buffer
44526 LD B,32 Append a pixel to the row and slide all the other pixels one space to the left
44528 RRCA
44529 RL (HL)
44531 DEC HL
44532 DJNZ 44529
44534 DEC C Next pixel row
44535 JR NZ,44526 Jump back until all 8 pixels rows are done
44537 EXX
44538 RET
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