|  | Routines | 
| Prev: C1CA | Up: Map | Next: C239 | 
| 
Used by the routine at C620.
 | ||||
| C213 | LD A,(IX+$11) | Return if scanner is not moving up | ||
| C216 | CP $02 | |||
| C218 | RET NZ | |||
| C219 | DEC (IX+$12) | Decrement state change counter for scanner | ||
| C21C | JP Z,$C313 | Jump to handle state change if counter is 0 | ||
| C21F | LD A,(IX+$01) | Decrement y-position based on scanner speed | ||
| C222 | SUB (IX+$10) | |||
| C225 | LD (IX+$01),A | |||
| C228 | LD L,(IX+$04) | Point to the address of the next graphic data for scanner | ||
| C22B | LD H,(IX+$05) | |||
| C22E | LD DE,$0020 | |||
| C231 | ADD HL,DE | |||
| C232 | LD (IX+$04),L | |||
| C235 | LD (IX+$05),H | |||
| C238 | RET | |||
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