Contents
Up
Next


Introduction


Thank you for buying the Green Mountain VHDL educational compiler. The compiler has been specifically designed to be affordable for educational purposes while providing enough power to learn and use VHDL.

The compiler and linker produce an executable program for the 80386 (which will also run on the 80486 and Pentium processors). Since execution of a GM VHDL program requires a kernel, the executable program must be run with a special loader that contains the kernel. There are two loaders in this package. One of them simply loads your program, executes it, and returns to DOS (sv.exe, the batch mode loader). In this case the only user interaction with the program is through your program's use of the Textio package. This batch mode loader may be distributed royalty-free (please see the license). The second loader loads your program and provides simulator-like control of the kernel. This allows you to run your program for small time intervals, watch signals, and apply stimulus to signals. It does not provide any single step debugging capabilities for processes.

All of the software in this package uses a DOS extender written by Rational Systems. The DOS extender provides the GM VHDL compiler and your compiled programs with the benefit of 32-bit operation and virtual memory. The section on configuring the DOS extender will provide information about using virtual memory.

Currently, support will only be provided through electronic mail. Any communication can be sent to thibault@together.net. You should expect a response within a day or two Mon-Fri. New minor releases will be made to correct any reported bugs. Any minor number releases will be available to registered users at no cost. So it is to your advantage to report any problems or comments you have.

Overview