Browse Prior Art Database

Translation of Four-Byte Unsigned Number Into Long Integer for Timing Function

IP.com Disclosure Number: IPCOM000041520D
Original Publication Date: 1984-Feb-01
Included in the Prior Art Database: 2005-Feb-02

Publishing Venue

IBM

Related People

Authors:
Allen, WH Cory, TM Hurley, PJ Thornton, RA [+details]

Abstract

In the present-day integrated office information systems environment, it is not unusual for devices such as printers or display terminals to be controlled by data streams communicated from remote host processors. Since the system of performing operations in the host processor may differ from that in the device such as the display terminal being controlled, a certain amount of translation is often required. An example of this occurs when a timing or time function is implemented on a given display terminal. The host system is a p-System in which the timing function returns a four-byte unsigned number for the time value. It was found that this unsigned number was not suitable for the timing function in the controlled display terminal system because that operated on the basis of signed arithmetic.