INT 62 u - FGDRIVER v3.03 - "FG_YCONVERT" - CONVERT CHARACTER ROW TO SCREEN ROW
        AX = 00B3h
        BX = character space row
Return: AX = screen space row of topmost pixel in specified character row
Program: FGDRIVER is the external video driver for the shareware
          Fastgraph/Light by Ted Gruber Software
Note:   For FGDRIVER v1.10, this function was unused;"FG_YCONVERT" was AX=000Fh
SeeAlso: AX=00B1h,AX=00B2h

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