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Routines |
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Clears the screen byte containing the screen pixel at x,y, leaving the indicated pixel on if it's already on, or off if it's already off.
This is the entry in the jump table handled by the routine at 32374 when that code is called with A=3
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| pixel_clearbyte | 31653 | CALL pxy2saddr | pxy2saddr of B=ypos, C=xpos, returns with screen location in HL and the pixel within the byte in A | |||||||
| 31656 | AND (HL) | Clear byte except the indicated pixel which is left | ||||||||
| 31657 | RET | |||||||||
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