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Routines |
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If CAPS + SPACE is held down, loop until it is released.
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| 81C4 | LD A,$FE | Read CAPS - V on the keyboard. | ||
| 81C6 | IN A,($FE) | |||
| 81C8 | LD B,A | Put this in B. | ||
| 81C9 | LD A,$7F | Read SPACE - B on the keyboard. | ||
| 81CB | IN A,($FE) | |||
| 81CD | OR B | Merge the two key presses together. | ||
| 81CE | BIT 0,A | Did both have the first key pressed? (ie: CAPS + SPACE ) | ||
| 81D0 | RET NZ | Return if not. | ||
| 81D1 | JP $81C4 | Otherwise loop back and wait until the keys are released. | ||
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