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allocmem()               Allocate DOS Memory Segment

 #include   <dos.h>

 int        allocmem(size,seg);
 unsigned   size;                        Size in paragraphs
 unsigned   *seg;                        Pointer to segment address

    allocmem() allocates a block of free memory via the MS-DOS system
    call 0x48.  The segment address of the allocated block is returned.
    'size' is the desired size in paragraphs. 'seg' is a pointer to the
    word to be assigned the segment address of the allocated block.  If
    there is not enough room, no assignment is made.

    Returns:    -1 is returned on success.  On error, a value
                representing the size of the largest available block is
                returned.

       Note:    All allocated blocks are paragraph aligned.

                Use freemem() to free memory allocated by allocmem().