Emulation system for automatically modifying I/O translation tables in programs designed to run on different types of computer

Patent 4858114 Issued on August 15, 1989. Estimated Expiration Date:

December 11, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

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Inventors

Application

No. 07/132719 filed on 12/11/1987

US Classes:

703/27, Compatibility emulation718/100TASK MANAGEMENT OR CONTROL

Examiners

Primary: Williams, Archie E. Jr.
Assistant: Mohamed, Ayni

Attorney, Agent or Firm

Lefeve; Douglas H.

International Classes

G06F 13/10 (20060101)
G06F 9/445 (20060101)

Abstract

A technique for providing automatic modification of a computer application program adopts the program for compatibility with hardware different from that for which the program was originally written and tested. Upon initial loading of the application program, a search is made to determine the existence of a set of exception tables, external to the application program. If the exception tables are present, all code conversion tables within the application program relating to I/O operations are modified according to the set of exception tables. Plural sets of exception tables may be included with the ability of the operator to choose which set of exception tables will be used to modify the program, thereby allowing the operator to use a single program with a variety of different hardwawre configurations, assuring with each configuration that the intended characters and symbols are displayed and printed.

Other References

PRINTEXT/370 (Programming RPQ EF3414): Programming Reference, SH20-1794-2, Third Edition, International Business Machines Corporation, (Oct. 1980)
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