NAME
        MakeFunctions -- construct a function jump table

   SYNOPSIS
        tableSize = MakeFunctions(target, functionArray, funcDispBase)
        D0                        A0      A1             A2

        ULONG MakeFunctions(APTR,aptr,aptr);

   FUNCTION
        A low level function used by makelibrary to build jump tables of
        the type used by libraries, devices and resources.  It allows the
        table to be built anywhere in memory, and can be used both for
        initialization and replacement. This function also supports function
        pointer compression by expanding relative displacements into absolute
        pointers.

        The processor instruction cache is cleared after the table building.

   INPUT
        destination - the target address for the high memory end of the
                function jump table.  Typically this will be the library
                base pointer.

        functionArray - pointer to an array of function pointers or
                function displacements.  If funcDispBase is zero, the array
                is assumed to contain absolute pointers to functions. If
                funcDispBase is not zero, then the array is assumed to
                contain word displacements to functions.  In both cases,
                the array is terminated by a -1 (of the same size as the
                actual entry.

        funcDispBase - pointer to the base about which all function
                displacements are relative.  If zero, then the function
                array contains absolute pointers.

   RESULT
        tableSize - size of the new table in bytes (for LIB_NEGSIZE).

   SEE ALSO
        makelibrary()