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Routines |
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Used by the routine at 64BD. Returns to the caller if Sam can roll or somersault from his current location; otherwise returns to the main loop.
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| 653E | LD H,$E6 | 0xE6=Sam | ||
| 6540 | CALL $EAF8 | Is Sam on the sidewalk or the road? | ||
| 6543 | JR C,$6555 | Jump if not | ||
| 6545 | LD L,$00 | Point HL at byte 0x00 of Sam's buffer | ||
| 6547 | BIT 7,(HL) | Reset the zero flag if Sam is facing right | ||
| 6549 | INC HL | Point HL at byte 0x01 of Sam's buffer | ||
| 654A | LD A,(HL) | A=Sam's x-coordinate | ||
| 654B | JR NZ,$6552 | Jump if Sam is facing right | ||
| 654D | CP $04 | Return if Sam is facing left and his x-coordinate is >= 4 | ||
| 654F | RET NC | |||
| 6550 | JR C,$6555 | Jump if Sam is facing left and his x-coordinate is < 4 | ||
| 6552 | CP $FA | Return if Sam is facing right and his x-coordinate is < 250 | ||
| 6554 | RET C | |||
| 6555 | POP BC | Drop the return address from the stack | ||
| 6556 | POP BC | Drop the address of the animation phase table from the stack | ||
| 6557 | RET | Return to the main loop at F06D | ||
| Prev: 64BD | Up: Map | Next: 6558 |