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Routines |
| Prev: 30115 | Up: Map | Next: 30156 |
| DE | Graphic buffer address |
| 30132 | LD HL,65473 | Point HL at the top left corner of the text that was just written into the graphic buffer |
| 30135 | ADD HL,DE | |
| 30136 | LD DE,7 | This is the "distance" (in bytes) between the left and right edges of the graphic buffer |
| 30139 | LD BC,30115 | Point BC at the graphic data table at 30115 |
| 30142 | LD A,(BC) | Pick up a bubble left-edge graphic byte in A |
| 30143 | INC C | Move BC along in the graphic data table |
| 30144 | INC A | Have we finished drawing the edges? |
| 30145 | RET Z | Return if so |
| 30146 | OR (HL) | Superimpose the bubble left-edge graphic byte |
| 30147 | LD (HL),A | |
| 30148 | ADD HL,DE | Move over to the right edge |
| 30149 | LD A,(BC) | Pick up a bubble right-edge graphic byte in A |
| 30150 | INC C | Move BC along in the graphic data table |
| 30151 | OR (HL) | Superimpose the bubble right-edge graphic byte |
| 30152 | LD (HL),A | |
| 30153 | INC HL | Move back to the left edge, one pixel row down |
| 30154 | JR 30142 | Jump back to superimpose another edge graphic byte |
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