1007: warning - program has no start address 
------------------------------------------------------------------------------

  This message indicates that no module containing a record indicating
  the starting point of the program was found during the link. A module
  of this type is usually found in the default language library for the
  compiler being used. Check that the language library is being linked
  by using the VERBOSE 1 command to list all the files being linked.
  Some compilers force the language library to be linked automatically
  unless the NODEFLIB command has been used, other compilers require the
  library to be explicitly specified in the link file (or command
  line).

  Assembler programmers should specify a starting point in the main
  module using the following construct:

  start:               ; Execution starts here
        ...
        ...
        end start      ; Specifies program start address