Routines
Prev: 64680 Up: Map Next: 64756
64734: Scroll Window: Screen Address
Used by the routine at ScrollWindow_Scroll.
Returns the screen address of pixel line C, column B.
Input
B Column
C Pixel line
Output
HL Screen address
ScrollWindow_ScreenAddress 64734 LD A,C
64735 AND 192
64737 RRCA
64738 RRCA
64739 RRCA
64740 ADD A,64
64742 LD H,A
64743 LD A,C
64744 AND 7
64746 ADD A,H
64747 LD H,A
64748 LD A,C
64749 RLCA
64750 RLCA
64751 AND 224
64753 OR B
64754 LD L,A
64755 RET
Prev: 64680 Up: Map Next: 64756