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Routines |
| Prev: 54162 | Up: Map | Next: 54192 |
| 54176 | LD HL,(54110) | Load HL with address of bitmap virtual text cursor... | ||
| 54179 | INC HL | ...and increase (for next character) | ||
| 54180 | LD A,L | Load LSB of HL into A... | ||
| 54181 | OR A | ...and check whether it is zero | ||
| 54182 | JR NZ,54188 | If it is not zero (i.e. advancing down a character row will not take us into a different third) then skip ahead to 54188 | ||
| 54184 | LD A,H | Add 7 to MSB of display file address as advancing by one at 54179 took display file pointer back up to 2nd pixel row of the current third of the display when in fact we need to move to top pixel row of the NEXT third of the display (i.e. 7 × 32 × 8 = 7 × 256 bytes on from this!) | ||
| 54185 | ADD A,7 | |||
| 54187 | LD H,A | |||
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This entry point is used by the routines at 54132, 54192, 54283 and 54333.
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| 54188 | LD (54110),HL | Store the updated address of bitmap virtual text cursor | ||
| 54191 | RET | Return | ||
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