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Routines |
| Prev: 54176 | Up: Map | Next: 54215 |
| 54192 | LD HL,(54110) | Load HL with address of bitmap virtual text cursor | ||
| 54195 | LD A,L | Get LSB of video memory address in A | ||
| 54196 | ADD A,32 | Add 32 (i.e. move down one character row) | ||
| 54198 | JP C,54206 | If we have encountered the bottom of the current third of the display, then skip ahead to 54206 | ||
| 54201 | AND 224 | Decrease to nearest multiple of 32 (i.e. start of a character row) | ||
| 54203 | LD L,A | Place modified address back into HL | ||
| 54204 | JR 54188 | Store at 54110 and return | ||
| 54206 | AND 224 | Decrease to nearest multiple of 32 (i.e. start of a character row) | ||
| 54208 | LD L,A | Place modified address back into L | ||
| 54209 | LD A,H | Load MSB of video memory address into A | ||
| 54210 | ADD A,8 | Increase by 8 (as we're moving one text row, or EIGHT pixel rows down) | ||
| 54212 | LD H,A | Place modified address back into HL | ||
| 54213 | JR 54188 | Store at 54110 and return | ||
| Prev: 54176 | Up: Map | Next: 54215 |