|
Routines |
| Prev: 33089 | Up: Map | Next: 33105 |
|
Used by the routines at DrawingSetup and Drawing_PlotTheSelectedPixel.
Retreats the high coordinate. When it was already zero, it is put back and one step is counted.
|
||||
| Drawing_RetreatTheHighCoordinate | 33096 | DEC D | Step the high coordinate back and return unless it wrapped to 255. | |
| 33097 | LD H,A | |||
| 33098 | LD A,D | |||
| 33099 | CP 255 | |||
| 33101 | LD A,H | |||
| 33102 | RET NZ | |||
| 33103 | INC D | Put the high coordinate back to 0. | ||
| 33104 | RET | Return. | ||
|
View the equivalent code in;
|
||||
| Prev: 33089 | Up: Map | Next: 33105 |