Int 62 Fn 00B2  u - Fgdriver V3.03 - "fg_yalpha" - Convert Screen Row To   [V]

   AX = 00B2h
   BX = screen space row

Return: AX = character space row containing specified coordinate

Note:  For FGDRIVER v1.10, this function was unused; "FG_YALPHA" was AX=000Dh

See Also: AX=00B0h,AX=00B3h