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53601: Copy co-ordinates of room's left/right wall connector sections to working buffer
Used by the routine at 51359.
Copy the co-ordinates of the left/right wall/floor vertical connectors, in relation to the current screen's viewport, into working data buffer
Vertical back wall/floor connector (left)
53601 LD A,(60234) Graphic vertical pixel position
53604 LD (60154),A Store as LEFT connector value
53607 LD A,(60232) Graphic horizontal position, in 4-pixel/half-character steps
53610 LD (60155),A
53613 JP 53885
Vertical back wall/floor connector (right) - Have already identified vertical position from left connector, as it's the same
53616 LD A,(60232) Graphic horizontal position, in 4-pixel/half-character steps
53619 LD (60156),A Store as RIGHT connector value
53622 JP 53885
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