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Routines |
| Prev: 36707 | Up: Map | Next: 36852 |
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Used by the routine at 34574. First check whether Willy has entered the portal.
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| 36805 | LD HL,(32944) | Pick up the address of the portal's location in the attribute buffer at 23552 from 32944 | ||
| 36808 | LD A,(32876) | Pick up the LSB of the address of Willy's location in the attribute buffer at 23552 from 32876 | ||
| 36811 | CP L | Does it match that of the portal? | ||
| 36812 | JR NZ,36831 | Jump if not | ||
| 36814 | LD A,(32877) | Pick up the MSB of the address of Willy's location in the attribute buffer at 23552 from 32877 | ||
| 36817 | CP H | Does it match that of the portal? | ||
| 36818 | JR NZ,36831 | Jump if not | ||
| 36820 | LD A,(32911) | Pick up the portal's attribute byte from 32911 | ||
| 36823 | BIT 7,A | Is the portal flashing? | ||
| 36825 | JR Z,36831 | Jump if not | ||
| 36827 | POP HL | Drop the return address from the stack | ||
| 36828 | JP 36904 | Move Willy to the next cavern | ||
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Willy has not entered the portal, or it's not flashing, so just draw it.
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| 36831 | LD A,(32911) | Pick up the portal's attribute byte from 32911 | ||
| 36834 | LD (HL),A | Set the attribute bytes for the portal in the buffer at 23552 | ||
| 36835 | INC HL | |||
| 36836 | LD (HL),A | |||
| 36837 | LD DE,31 | |||
| 36840 | ADD HL,DE | |||
| 36841 | LD (HL),A | |||
| 36842 | INC HL | |||
| 36843 | LD (HL),A | |||
| 36844 | LD DE,32912 | Point DE at the graphic data for the portal at 32912 | ||
| 36847 | LD HL,(32946) | Pick up the address of the portal's location in the screen buffer at 24576 from 32946 | ||
| 36850 | LD C,0 | C=0: overwrite mode | ||
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This routine continues into the one at 36852.
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| Prev: 36707 | Up: Map | Next: 36852 |