Function:       make_ptr()
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        FORCE Prototype:
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                PROCEDURE make_ptr
                   PARAMETERS UINT segment, UINT offset, UNTYPED thing

        Description:
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                make_ptr() is pretty self explanatory.  It takes the
        address of something, and returns its SEGMENT and OFFSET.  I
        find this function particularly useful when I'm using the
        Interrupt() and Int_w_Flags() functions.  They often need a pointer
        to a structure or a buffer, so you can use make_ptr() to get
        that pointer.  See the example code for Interrupt() above for its
        usage.

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