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Contact:  Gail Truman
       (305) 973-5122

HARRIS  ANNOUNCES NIGHTTRACE ANALYZER FOR REAL-TIME SOFTWARE DEVELOPMENT

			Latest addition to NightStar toolkit

Fort Lauderdale, Florida -  September 9, 1992 - Harris  
Corporation's Computer Systems Division today introduced 
NightTrace, the newest member of their recently announced NightStar 
real-time software development environment.   NightTrace is a graphical 
tool for analyzing the dynamic behavior of multiprocess and/or 
multiprocessor applications. NightTrace is tailored to the more complex 
development needs of real-time customers and is the first tool available 
that can graphically display the interplay between many real-time 
programs and processes after they have executed across multiple 
computer processors.  

The NightStar software development tools, which include NightTrace, 
were designed for use in a wide range of real-time environments such as 
flight simulation, vehicle and weapons testing, energy management, 
data acquisition, and process control.

"Real-time applications are typically very sophisticated, involving many 
programs executing across multiple processors but working together 
and behaving as one unit," said Al Romagosa, Chief Scientist for Harris 
Corporation's Computer Systems Division.  "NightTrace is the first 
real-time software development tool of its kind to handle and graphically 
display the interdependencies across multiple processes or processors."   

Active windows can be used to display system activity for any given 
processor in a multiprocessing system or can display user events and 
user states for any user program, regardless of the processor on which 
the program is running. 

NightTrace  makes Harris Night Hawk computers even more versatile 
and user friendly for software development.  In keeping with the Night 
Hawk computer's open architecture design, NightTrace operates with  a 
Graphical User Interface (GUI) based on the X Window System 
standard that provides a graphical view of the run-time behavior of a 
real-time system.   Information can be graphically displayed along a time 
line to clearly show the relative timings of different events to 
microsecond accuracy, and to give an overall picture of the application.  
The entire sequence of application events can be replayed in slow 
motion and events of interest may be searched for and zoomed in on for 
precise observation.

Trace points are inserted into the application at any point at which an 
event or data is required.  Then, the application is run to generate a trace 
log file and NightTrace is used to create a time-based display of the trace 
point information.  Trace points may also be configured in the kernel  to 
study the behavior of the system while running the application.  
NightTrace can even analyze the user and kernel trace logs 
simultaneously and present an integrated view of both kernel activity 
and the user's application on the same time line.

The information from the application to be displayed graphically is 
completely user configurable and  can be displayed in any of several 
different formats.  Configurations can be saved and recalled later, and 
several configurations can be visible at one time.

The NightStar software development tools, which include NightTrace 
and the recently announced NightView debugger, have been developed 
to enable systems builders to reduce software development time and 
maximize productivity when developing real-time applications on the 
Night Hawk family of multiprocessor computers.

NightTrace is supported on the Night Hawk 4000 and 5000 series of 
computers running the CX/UX UNIX operating system and is priced at 
$1,000 for a two-user license.

Harris Night Hawk Computers - Based on open systems 
architecture, industry standards and RISC technology, the Harris Night 
Hawk family of computer systems is designed for demanding real-time 
applications.  Ranging in performance from 20 to 800 MIPS, Night 
Hawk systems support compatible real-time and multilevel secure 
UNIX operating systems that comply with POSIX, the System V 
Interface Definition (SVID) and 88open standards.

Harris Computer Systems Division produces the Night Hawk family of 
real-time computer systems for simulation, data acquisition and secure 
computing applications.  The division is part of Harris' Electronic 
Systems Sector.

Harris Corporation, with annual worldwide sales of more than $3 
billion, is focused on four major businesses:  electronic systems, 
semiconductors, communications, and Lanier Worldwide office 
equipment.

                                  ###
Edotor's Note:  photo available by overnight mail.  Call Michelle 
Rosemin or Melanie March-Kogon at (305) 973-5124

Night*, NightStar and NightTrace are trademarks of Harris 
Corporation.
Night Hawk is a registered trademark of Harris Corporation.
X Window System is a trademark of MIT.
88open is a registered trademark of the 88open Consortium Ltd.
UNIX is a registered trademark of UNIX System Laboratories, Inc in 
the U.S. and other countries.
Other products mentioned in this document are trademarks or registered 
trademarks of the manufacturers or marketers of the products with 
which the marks are associated.

Contact:  Gail Truman
         (305) 973-5122
email: gailt@misg.csd.harris.com