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Routines |
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| 7386 | AND $80 | A=0x00 if ERIC's facing left, 0x80 if facing right | ||||||||||||
| 7388 | ADD A,$19 | A=0x19/0x99: bike standing upright | ||||||||||||
| 738A | LD B,A | Copy the bike's animatory state to B | ||||||||||||
| 738B | LD HL,$D302 | H=0xD3 (bike), L=0x02 | ||||||||||||
| 738E | LD A,D | A=ERIC's y-coordinate | ||||||||||||
| 738F | CP (HL) | Is ERIC on the same floor as the bike? | ||||||||||||
| 7390 | RET NZ | Return if not | ||||||||||||
| 7391 | DEC L | L=0x01 | ||||||||||||
| 7392 | LD A,E | A=ERIC's x-coordinate | ||||||||||||
| 7393 | CP (HL) | Is ERIC at the same x-coordinate as the bike? | ||||||||||||
| 7394 | RET NZ | Return if not | ||||||||||||
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ERIC is standing beside the bike. Prepare to place him on the saddle.
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| 7395 | DEC L | L=0x00 | ||||||||||||
| 7396 | LD (HL),B | Fill in the animatory state of the bike | ||||||||||||
| 7397 | CALL $7154 | Make a sound effect | ||||||||||||
| 739A | LD HL,$7FFB | 7FFB holds ERIC's status flags | ||||||||||||
| 739D | LD (HL),$02 | Set bit 1: examine the secondary status flags at 7FED | ||||||||||||
| 739F | LD A,$12 | |||||||||||||
| 73A1 | LD L,$EE | HL=7FEE (value from the keypress offset table corresponding to the last key pressed while riding the bike) | ||||||||||||
| 73A3 | LD (HL),A | Initialise this to 0x12 (which doesn't correspond to any key) | ||||||||||||
| 73A4 | INC L | Initialise the bike's speed counter (at 7FEF) to 0x12 (matching its initial momentum, set below, so that it doesn't move forward before ERIC has started pedalling) | ||||||||||||
| 73A5 | LD (HL),A | |||||||||||||
| 73A6 | INC L | Initialise the bike's momentum (at 7FF0) to 0x12 (giving ERIC a decent chance to start pedalling before the bike falls over) | ||||||||||||
| 73A7 | LD (HL),A | |||||||||||||
| 73A8 | LD L,$F3 | HL=7FF3 (ERIC's main action timer) | ||||||||||||
| 73AA | JP $7330 | Place ERIC on the bike | ||||||||||||
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