INT 62 u - FGDRIVER v3.03 - "FG_FREEPAGE" - FREE VIRTUAL OR LOGICAL VIDEO PAGE
        AX = 002Eh
        BX = page number (0000h-003Fh)
Return: AX = status (0000h,0001h,0007h,0009h) (see AX=0042h)
Note:   For FGDRIVER v1.10, this function was "FG_POLYGON" (see AX=0079h);
           "FG_FREEPAGE" was AX=0043h
SeeAlso: AX=0000h,AX=0001h,AX=0002h,AX=0003h

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