OVERLAY                       Specify which segment classes are to be overlaid
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 Purpose  : Specify which segment classes are to be overlaid

 Syntax   : OVERLAY <classname> [,<classname> ...]

 Default  : The class of the first segment encountered in the link
            process.

 Example  : OVERLAY CODE

 The OVERLAY command is used to specify to the linker which segment class or
 classes from the object files are to be placed in the overlay sections.

 The overlay class defaults to the first segment class processed during
 linking and is displayed to the screen at the end of the first pass when
 VERBOSE mode is selected. It should be unnecessary to use this command for
 high level language compilers as they automatically place all code segments
 at the start of the .OBJ.

 Assembler programmers have complete control over the segment classes and
 their order in the .OBJ files, so they may have need of the OVERLAY command
 to force overlaying of code not in segments of class CODE.

 Blinker only supports dynamic overlaying of program code, so use this
 command with care, and do not attempt to overlay data segments.