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Routines |
| Prev: C468 | Up: Map | Next: C4A7 |
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Used by the routine at DrawStripGraphic.
Skips the rows of an image that are below PlayfieldBuffer. A is the number of those rows, negated. It starts drawing at 48 and jumps to DrawStripGraphic_Draw.
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Skip the rows that are below the buffer.
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| ClipEdgeStripTop | C497 | NEG | Make the number of rows positive and keep it in C. | |||||||
| C499 | LD C,A | |||||||||
| C49A | LD A,(HL) | Fetch the height of the image. | ||||||||
| C49B | INC HL | |||||||||
| C49C | SUB C | Subtract the rows that are below. | ||||||||
| C49D | RET M | Return if there are none left. | ||||||||
| C49E | RET Z | |||||||||
| C49F | LD B,$00 | Skip the image data for those rows. | ||||||||
| C4A1 | ADD HL,BC | |||||||||
| C4A2 | ADD HL,BC | |||||||||
| C4A3 | LD D,$48 | Set the vertical position to 48. | ||||||||
| C4A5 | JR DrawStripGraphic_Draw | Jump to DrawStripGraphic_Draw. | ||||||||
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View the equivalent code in;
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| Prev: C468 | Up: Map | Next: C4A7 |