68A3: Scroll the backgroundscolours left by one column.
| BgAttrScroll |
68A3 |
LD A,$16 |
|
68A5 |
PUSH AF |
|
68A6 |
LD BC,AttrMap_RightColTop |
|
68A9 |
PUSH BC |
|
68AA |
LD DE,Bg_Attr |
|
68AD |
LD HL,Bg_Attr_Plus1 |
| BgAttrScroll_0 |
68B0 |
LD BC,$001E |
|
68B3 |
LDIR |
|
68B5 |
POP BC |
|
68B6 |
LD A,(BC) |
|
68B7 |
LD (DE),A |
|
68B8 |
DEC BC |
|
68B9 |
POP AF |
|
68BA |
DEC A |
|
68BB |
RET Z |
|
68BC |
PUSH AF |
|
68BD |
PUSH BC |
|
68BE |
INC HL |
|
68BF |
INC HL |
|
68C0 |
INC DE |
|
68C1 |
INC DE |
|
68C2 |
JR BgAttrScroll_0 |
|
68C4 |
NOP |
|
68C5 |
NOP |
|
68C6 |
NOP |
|
68C7 |
NOP |
|
68C8 |
NOP |
|
68C9 |
NOP |
|
68CA |
NOP |
|
68CB |
NOP |
|
68CC |
NOP |
|
68CD |
NOP |
|
68CE |
NOP |
|
68CF |
NOP |