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Routines |
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Used by the routine at DrawingSetup.
Masks one screen byte. It turns the row into a screen address and keeps the picture pointer.
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| Drawing_MaskOneScreenByte | 33006 | PUSH HL | Call Drawing_ScreenAddressFromTheRow to turn the pen into a screen address. | |
| 33007 | CALL Drawing_ScreenAddressFromTheRow | |||
| 33010 | AND (HL) | Apply the mask in A and restore HL from the stack. | ||
| 33011 | POP HL | |||
| 33012 | RET | Return. | ||
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View the equivalent code in;
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