*-*-* READ_ME *-*-*

    This directory contains the System 120 hard disk driver source code.
    A command file is also included to demonstrate how to compile the
    driver source and to update the system 120 device driver library.

    You should make your own directory and copy the device driver files
    into this directory before making any changes to the source code.

     To create your own directory type:

             createdir mydir <cr>
             attachfile mydir <cr>


     Copy the hard disk driver files into your directory, type:

             submit /rmx386/demo/drivers/at/st506/get <cr>


     In the current directory you will find the following files:

      wd120.p28   -  System 120 hard disk driver source code module
      wd120.lit   -  Literals for this driver
      nutyp.lit   -  RMX  Nucleus "type" literals.
      iors.lit    -  I/O Request/Result Segment
      duib.lit    -  Device-Unit Information Block definition.
      drinf.lit   -  Driver information for common and random access devices.
      radsf.lit   -  Random-Access driver Special-Function Mnemonics.
      ioexc.lit   -  IO exception codes
      param.lit   -  I/O System parameter literals.

      gen.csd     -  Command file, used to generate the hard disk driver.