Routines
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D64F: Move Down Row
Used by the routines at PrintRightHalfOfCharacter, DrawDoubleHeightCharacter, DrawTownPanel, DrawTileBlock, DrawTileBlockReflected and DrawTileColumn.
Moves a screen address down by one row of characters.
Input
HL The screen address
Output
HL The new screen address
MoveDownRow D64F LD A,L Add thirty-two to the low byte.
D650 ADD A,$20
D652 LD L,A
D653 RET NC Return if it has not gone into the next third.
D654 LD A,H Add eight to the high byte.
D655 ADD A,$08
D657 LD H,A
D658 RET Return.
View the equivalent code in;
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