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Int 10 Fn 47  - Video - Find Pixel Value (hercules Grafix)                 [V]

   AH = 47h
   DI = x (0-720)
   BP = y (0-347)

Return: AL = 00h pixel clear
   AL = 01h pixel set

Note:  function 43h specifies which page is used

See Also: AH=0Dh,AH=46h
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