NAME
        SameDevice -- Are two locks are on partitions of the device? (V37)

   SYNOPSIS
        same = SameDevice(lock1, lock2)
        D0                 D1     D2

        bool samedevice( bptr, bptr )

   FUNCTION
        SameDevice() returns whether two locks refer to partitions that
        are on the same physical device (if it can figure it out).  This
        may be useful in writing copy routines to take advantage of
        asynchronous multi-device copies.

        Entry existed in V36 and always returned 0.

   INPUTS
        lock1,lock2 - locks

   RESULT
        same - whether they're on the same device as far as Dos can determine.