84PCSE:BCALLs:5596
From WikiTI
Synopsis
Unofficial Name: SetLCDWindowAndPos
BCALL Address: 5596h
Set up the LCD window registers for a block drawing operation.
Inputs
- HL = left edge of window (starting X coordinate)
- DE = right edge of window
- B = starting Y coordinate
Outputs
- R20h (starting row) = B
- R21h (starting column) = HL
- R52h (minimum column) = HL
- R53h (maximum column) = DE
Destroys
- AF
Comments
Interrupts should be disabled before calling this routine.
