INT 7F - Alloy MW386 - GET DOS TASK PID FROM CREATE ID
        AH = E1h
        AL = create ID (from AH=E0h)
Return: AL = DOS process number
        CL = memory size (00h=128K, 01h=256K, 02h=384K, 03h=512K, 04h=640K)
Note:   this function should not be called immediately after creating a new
          DOS task, since the new task is being initialized by a concurrent
          process
SeeAlso: AH=E2h