|
Routines |
| Prev: A4E7 | Up: Map | Next: A53C |
|
Used by the routine at RunFrame.
Scrolls the message 'TIME OUT' across the window, one frame at a time.
|
||||
| ScrollTimeOutMessage | A51C | LD HL,$FF0E | Set the scroll counter to 0E and the character index to FF. | |
| A51F | LD ($A921),HL | Store them in ScrollCounter and A922. | ||
| A522 | LD A,$08 | Set the length of the message to 08... | ||
| A524 | LD ($A572),A | ...in the operand of the instruction at A571. | ||
| ScrollTimeOutMessage_Loop | A527 | LD IY,($5CF1) | Bring back IY from SavedIY. | |
| A52B | EI | Enable interrupts... | ||
| A52C | HALT | ...and wait for the next frame. | ||
| A52D | DI | Disable interrupts. | ||
| A52E | LD HL,$A53C | Point HL at TimeOutMessage. | ||
| A531 | CALL ScrollMessage | Scroll the message by one step. | ||
| A534 | LD A,($A922) | Fetch the character index from A922. | ||
| A537 | CP $11 | Compare it with 11. | ||
| A539 | RET Z | Return if the message has gone. | ||
| A53A | JR ScrollTimeOutMessage_Loop | Jump back to scroll the message another step. | ||
| Prev: A4E7 | Up: Map | Next: A53C |