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Routines |
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Used by the routine at MENU.
Sets the FLASH bit on the colour of the line for the method in bits 1-2 of CONTROL and clears it on the other three (TOGGLE_SELECTED), then sets or clears it on the next colour -- the "5 DIRECTIONAL CONTROL" line's -- to match bit 3 of CONTROL. The colours are MENU_COLOURS's; the title's, the first, is left alone. As Knight Lore's flash_menu, instruction for instruction.
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| FLASH_MENU | BAFB | LD HL,$BB15 | the four method lines, from the second colour: flash the one for bits 1-2 | |
| BAFE | LD A,(CONTROL) | |||
| BB01 | RRCA | |||
| BB02 | AND $03 | |||
| BB04 | LD B,$04 | |||
| BB06 | CALL TOGGLE_SELECTED | |||
| BB09 | RES 7,(HL) | HL is now on the directional-control line's colour: flash it if bit 3 is set | ||
| BB0B | LD A,(CONTROL) | |||
| BB0E | AND $08 | |||
| BB10 | RET Z | |||
| BB11 | SET 7,(HL) | |||
| BB13 | RET | |||
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