Revision as of 10:42, 20 October 2013 by FloppusMaximus
Unofficial Name: SetLCDWindowAndPos
BCALL Address: 5596h
Set up the LCD window registers for a block drawing operation.
- HL = left edge of window (starting X coordinate)
- DE = right edge of window
- B = starting Y coordinate
- R20h (starting row) = B
- R21h (starting column) = HL
- R52h (minimum column) = HL
- R53h (maximum column) = DE
Interrupts should be disabled before calling this routine.