INT 62 u - FGDRIVER v1.10 - "FG_ALLOCCMS" - CREATE LOGICAL VIDEO PAGE (CONVMEM)
        AX = 009Dh
        BX = page number (0001h-003Fh)
Return: AX = status
            0000h successful
            FFFCh insufficient memory
            FFFDh page already created, or exists as physical or virtual page
            FFFEh invalid page number
Note:   the only operation which is allowed on logical pages is AX=005Fh
SeeAlso: AX=005Fh,AX=009Bh,AX=009Eh,AX=009Fh