|  | Routines | 
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| 
Used by the routine at ControlPlayer.
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| AutoWalkStep | 8D6D | LD A,(IX+$02) | ||
| 8D70 | AND %00001111 | Keep only bits 0-3. | ||
| 8D72 | RET Z | Return if the result is zero. | ||
| 8D73 | DEC (IX+$02) | |||
| 8D76 | RET | Return. | ||
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