OSWORD &09

OSWORD &09 (9): Read screen pixel value

On entry:
 XY+0..1=X coordinate
 XY+2..3=Y coordinate
On exit:
 XY?4=pixel value, or &FF if the point was off screen or
      non-graphics screen mode.

See Also

• http://mdfs.net/Docs/Comp/BBC/Oswords

Jgharston 13:22, 26 May 2009 (UTC)