The new version offers several other new features, including a menu and multi-window user interface with mouse support. The new interface allows users to get started with Instant-C quickly. The interface retains a command window, which allows experienced users to use commands rather than menus.

Instant-C now supports the use of external editors as well as adding keystroke emulation for Wordstar, Brief, or Emacs to the Instant-C editor. The editor can now handle large programs, and with the addition of multiple windows, to view and edit multiple files and functions.

Instant-C augments the use of traditional compilers and debuggers during the developing phase of an application. It eliminates compile and link delays using incremental compiler and linker technology. Instant-C includes source-level debugging, interactive C expression evaluation, including macros, cross-referencing, browsing, single function or partical program execution and compatibility with Microsoft C.

Version 5.0 will sell for $795. Existing customers can obtain Instant-C v5.0 for $50. All customers who received Instant-C after Dec. 15, 1990 will receive an upgrade at no charge. For more information, contact Rational Systems, 220 North Main St., Natick, MA 01760, (508) 653-6006; FAX (508) 655-2753.

C/p16 uses interpretive techniques at runtime to execute highly compacted 16-bit pseudo object code (p16 code). C/p16 will help developers facing memory constraints, such as the DOS 640K barrier, excessive paging under Windows or OS/2, or the hardware limits of embedded systems. It will also help those seeking larger application workspaces or smaller executable files.

C/p16 employs a special version of the Watcom C compiler, which optionally generates either compact p16 code or optimized native 80x86 code. The p16 instruction-set architecture is optimized for compactness and fast interpretation.

The C 8.0 optimizing compiler and tools package includes the WVideo debugger, linker, execution profiler, Make, and librarian. C/p16 is priced at $5,000, which includes an unlimited royalty-free license for runtime support. For more information, contact Watcom, 415 Phillip St., Waterloo, Ontario, Canada, N2L 3X2, (519) 886-3700; FAX (519) 747-4971.

Lynx optimized the snugly coupled multiprocessing (SCMP) version of LynxOS/MP to provide real-time performance. LynxOS/MP provides transparency and uniformity to the programmer, which increases portability of applications across uniprocessor and different flavors of multiprocessor systems. The architecture also satisfies the emerging trend toward flexible, modular computer systems, which may require multiple levels of computer interconnectivity.

LynxOS/MP is source-compatible with UNIX System V.3 as well as BSD 4.3. It is binary-compatible with System V.3 and runs shrink-wrapped applications, including packages such as Wordperfect, Informix, and 20/20. LynxOS/MP complies with the IEEE POSIX 1003.1 standard and provides all the facilities defined in Draft 9 of the POSIX 1003.4 real-time extensions standards and Draft 3 of the 1003.4a threads standard.

For more information, contact Lynx Real-Time Systems, 16780 Lark Ave., Los Gatos, CA 95030, (408) 354-7770; FAX (408) 354-7085.

C-Cover works with existing tools and is easy to use with the make utility. It will analyze just one module or it will analyze the whole program. C-Cover has automatic coverage data integrity checking and detects when its coverage data has been corrupted. C-Cover requires 2K of memory when compiling.

C-Cover sells for $200. For more information, contact Bullseye Software at 5129 24th Ave. NE, Suite 9, Seattle, WA 98105-3230, (206) 524-3575.

The system manager library controls system wide synchronization and offers transparent use of all system elements, recovery from component failure, and status reporting. RTSM software can be used in parallel environments hosted by UNIX, OS-9, VMS, DOS, and others. It can be accessed by languages that include "C", Par. C, FORTRAN, and Occam.

RTSM provides real-time synchronization of all system elements by setting the real-time clocks globally and triggering input and output. Sampling can be performed on all nodes simultaneously at regular, pre-set intervals. The system manager can detect failures and execute reset and initialization.

Licenses for the Real-Time System Manager start at $1,250. For more information, contact Parsytec, Building 9, Unit 60/61, 245 W. Roosevelt Rd., West Chicago, IL 60185, (708) 293-9500; FAX (708) 293-9525.

Xmath offers a spreadsheet-style editor for matrices, point-and-click graphics annotation, on-line hypertext help, and a built-in source-level debugger window for script-based programming. Xmath produces algorithms that are optimized for speed and accuracy. These algorithms permit it to solve large number-crunching problems.

Xmath is priced at $2,495 per single-user license. Discounts are available for multiple copy purchases and to educational institutions. For more information, contact Integrated Systems, 2500 Mission College Blvd., Santa Clara, CA 95054-1215, (408) 980-1500; FAX (408) 980-0400.

The XVT Open Look implementation is compatible with Sun Microsystems Open-Windows environment. The OpenWindows environment includes the Open Look graphical user interface and the Open Look Intrinsics toolkit.

XVT is a software library that provides a common, or virtual, programming interface for developers writing applications that will run under multiple graphical user interfaces (GUIs). XVT makes it possible to program graphical applications that are portable across the most popular window systems, including OSF/Motif and Open Look for the X Window System, Macintosh, Microsoft Windows, Presentation Manager for both OS/2 and CTOS, and XVT's own character based window manager.

For more information, contact XVT Software, 1800 30th St., Box 17665, Boulder, CO 80308, (303) 443-4223; FAX (303) 443-0969.

When used with DOS extenders, the compiler supports full power of protected mode on the 386 and 486. Specific support for the 486 is provided under toggle control. Version 1.7 supports the 32-bit source-level debugger, an execution profiler, a one-step compile-and-link driver, an editor, and a grpahics library for the 386/486 in protected mode.

For more information, contact MetaWare, 2161 Deleware Ave., Santa Cruz, CA 95060-5706, (408) 429-6382; FAX (408) 429-9273.

Services that may be accessed with the Network C Library include file and directory management, locking and synchronization, bindery management, accounting, messaging, printing and queue management. The library also provides diagnostic and performance statistical reporting for the file server and individual work stations.

More than 400 pages of documentation provide an overview of each set of services with implementation suggestions and a description of each function. More than 100 sample working programs provide source code for most of the NetWare command line utilities and reports.

For more information, contact Automation Software Consultants, 124 Venice Ave., Cincinnati, OH 45140, (513) 677-0842.

With Geograf Level One, users can output their graphics to virtually any output device. This library includes a complete set of graphics device drivers that support most graphics cards, dot matrix printers, inkjet printers, laser printers and pen plotters. Device drivers can be changed at any time in seconds without changing the software.

Geograf Level One is priced at $149, including documentation and a full 30-day money-back guarantee. For more information, contact Geocomp Corporation, 66 Commonwealth Ave., Concord, MA 01742, (508) 369-8304; FAX (508) 369-4392.

C-scape is a library of C routines for creating professional user interfaces that allows developers to easily write applications that include multiple windows, data entry, text editing, menuing systems, and help. With Look & Feel, users create screens for their applications, and Look & Feel automatically generates source code for these screens.

C-scape is a portable C programming library for designing user interfaces. It enables developers to create applications with complex windowing features. Applications built with C-scape are portable between supported operating systems.

For more information, contact Oakland Group, 675 Massachusetts Ave., Cambridge, MA 02139-3309, (617) 491-7311; FAX (617) 868-4440.

SMARTsystem is structured around an object-oriented database that stores the program source, any modifications made, and all derived data. For more information, contact Procase, 3130 De La Cruz Blvd., Santa Clara, CA 95054, (408) 727-0714; FAX (408) 492-1814.

Graphical Kernel System is a device-independent graphics programming environment defined by the American National Standards Institute (ANSI and International Standards Organization (ISO) GSS*GKS is a frill 2b level implemenation of the ANSI/ISO standards.

New driver support includes color PostScript devices, HP LaserJet III and high-resolution EGA/VGA 256-color displays. GSS*GKS 2.14 is priced at $795. For more information, contact Spectragraphics, 9707 Waples St., San Diego, CA 92121, (619) 450-0611; FAX (619) 450-0218.

Pricing of Organized C ranges from $295 to $2,095 for a single license, depending on the platform and compiler, with a large discount for educational institutions. Most of the classes are in source; users can modify them or expand the library. For more information, contact Code Farms, 7412 Jock Trail, Richmond, Ontario, Canada K0A 2Z0, (613) 838-4829; FAX (613) 838-3316.

Version 4.0 also includes an OS/2 protected mode version of the program and includes various enhancements and fixes. The C-DOC tools not only produce stand-alone documentation, they can also reformat user programs and can generate and insert comment blocks of up-to-date documentation at the beginning of each individual function.

For more information, contact Software Blacksmiths, 6064 St. Ives Way, Mississauga, Ontario, Canada L5N-4M1, (416) 858-4466.

The SMARTsystem/Teamwork integration will be available as a separate product in late 1991 from Procase. Customers who want to take advantage of the integration capabilities immediately should contact Procase's professional services organization. Professional consultants will customize integration for individual environments on a fee basis.

For more information, contact Procase, 3130 De La Cruz Blvd., Suite 100, Santa Clara, CA 95054, (408) 727-0714; FAX (408) 492-1814.

Brief 3.1 sells for $249 plus $9 shipping. Upgrades are $80 plus shipping. For more information, contact Solution Systems, 372 Washington St., Wellesley, MA 02181, (617) 431-7445; FAX (617) 431-8419.

For more information, contact Interactive Development Environments, 595 Market St., 10th Floor, San Francisco, CA 94105, (415) 543-0900; FAX (415) 543-3716.

Canonizer output filters are now shipping for dBase III+, C declarations, COBOL, Pascal,/rdb, and ANSI Standard SQL. Input filters are now available for SQL, Cadre teamwork, dBase III+, and/rdb.

Prices for each output filter vary depending on hardware used, ranging from $145 for PC MS-DOS to $445 for HP9000/3XX. The Canonizer sells for $895 to $2,995. For more information, contact Six Sigma CASE, 13456 S.E. 27th Place, Suite 210, Bellevue, WA 98005-4211, (800) 827-4462; FAX (206) 641-7501.

For more information, contact Intermetrics Microsystems Software, 733 Concord Ave., Cambridge, MA 02138-1002, (617) 661-0072; FAX (617) 828-2843.