|
Routines |
| Prev: BB74 | Up: Map | Next: BBF1 |
|
Used by the routine at GameMenu.
Makes the line of the menu that shows the chosen control method flash, and stops the other three from flashing. The line that starts the game flashes if bit 3 of ControlMethod is set, which the menu never does.
|
||||
|
Flash the chosen control method.
|
||||
| FlashMenuOptions | BBD8 | LD HL,$BBF2 | Start at the colour of the first control method line, which is the byte after the first of MenuColours. | |
| BBDB | LD A,($A709) | Fetch the control method. | ||
| BBDE | RRCA | Shift the method down to bits 0 and 1... | ||
| BBDF | AND %00000011 | ...and keep only those bits. | ||
| BBE1 | LD B,$04 | Set a counter in B of four lines. | ||
| BBE3 | CALL SetFlashingAttribute | Call SetFlashingAttribute to make that line flash. | ||
|
Flash the start-game line if bit 3 of ControlMethod is set.
|
||||
| BBE6 | RES 7,(HL) | Stop the line that starts the game from flashing. | ||
| BBE8 | LD A,($A709) | Fetch the control method. | ||
| BBEB | AND %00001000 | Keep only bit 3. | ||
| BBED | RET Z | Return if it is not set. | ||
| BBEE | SET 7,(HL) | Make the line that starts the game flash. | ||
| BBF0 | RET | Return. | ||
|
View the equivalent code in;
|
||||
| Prev: BB74 | Up: Map | Next: BBF1 |