Compiling and Linking the OSDI

A sample OSDI is supplied, complete with source, which for most operating system will print to a serial port and accept input from the keyboard and a serial port. This sample code is only intended to illustrate the principles involved and is not intended to be a finished program.

The source code of the sample OSDI is supplied in the following files:

• DIPW.C, DIPW.H, DIPWUSER.C: Windows version (16 and 32 bit)
• DIP3.C, DIP.H, DIPUNIX.C: Unix or Linux version
• DIP2.C, DIP.H, DIPMSDOS.C: MS-DOS version
• DIP5.C, DIP.H, DIPFLEX.C: FlexOS version
• DIP7.C, DIP.H, DIPOS2.C: OS/2 version

In each case the first two files implement the "standard" part of the OSDI. The skeleton code you should modify is in the last module. All the standard modules are supplied precompiled (possibly for several memory models), though you may recompile them if necessary. You are recommended to first ensure you can rebuild the skeleton OSDI before making any modifications to the source.

Please do not modify the source code of the above DIPx.C files. Any supplied source code is for information only. If you do encounter any problems, please report the full details directly to Itim Technology Solutions. Modifying these modules may compromise your ability to upgrade to later versions of DP4. (For example the communication between the terminal manager and the Unix DIP had to be changed for release 4.515)

When building an OSDI you will need the DP4 C programming tools for the appropriate release of DP4.