INT 62 u - FGDRIVER v3.03 - "FG_COPYPAGE" - TRANSFER VIDEO PAGE CONTENTS
        AX = 0012h
        BX = source page number (0000h-003Fh)
        CX = destination page number (0000h-003Fh)
Notes:  For FGDRIVER v1.10, this function was unused;"FG_COPYPAGE" was AX=005Fh
        If both source and destination pages are logical pages, they must both
          be located in the same type (conventional, EMS, XMS) of memory
SeeAlso: AX=0083h,AX=0087h,AX=00A6h,AX=00A9h

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