Int 62 Fn FE  - Bw-tcp - Ethdrv.sys - Map Ems Page Frame                   [N]

   AH = FEh
   AL = direction
       00h map in driver's memory block
       01h map out driver's memory block

Return: CF clear if successful
   CF set on error
       AL = error code
Range: INT 4C to INT FB, selected by configuration

Notes: this function is supported by at least the SLIP and ODI versions of
     ETHDEV.SYS
   the Beame&Whiteside TCP/IP protocol stack uses two consecutive
     interrupts (62h and 63h by default); the BW-NFS client uses a third
     consecutive interrupt (64h by default) if it is loaded

See Also: INT 21/AH=3Fh"BW-TCP",INT 62/AH=00h"ETHDEV",INT 62/AH=18h"ETHDEV"

See Also: INT 63/AH=03h"BW-TCP",INT 63/AH=24h,INT 64/AH=FEh