US 11,934,220 B2
Clock comparator sign control
Eberhard Engler, Tuebingen (DE); Dan F. Greiner, San Jose, CA (US); Michel H. T. Hack, Cortlandt Manor, NY (US); Timothy J. Slegel, Staatsburg, NY (US); and Joachim von Buttlar, Schoenaich (DE)
Assigned to INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed by INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed on Oct. 20, 2021, as Appl. No. 17/506,235.
Application 17/506,235 is a continuation of application No. 16/544,063, filed on Aug. 19, 2019, granted, now 11,199,870.
Application 16/544,063 is a continuation of application No. 15/409,601, filed on Jan. 19, 2017, granted, now 10,423,191, issued on Sep. 24, 2019.
Prior Publication US 2022/0035399 A1, Feb. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 1/14 (2006.01); G06F 9/30 (2018.01); G06F 9/48 (2006.01); G06F 8/70 (2018.01)
CPC G06F 1/14 (2013.01) [G06F 9/3001 (2013.01); G06F 9/4812 (2013.01); G06F 8/78 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computer program product for facilitating processing in a computing environment, said computer program product comprising:
one or more computer readable storage media and program instructions collectively stored on the one or more computer readable storage media to perform a method comprising:
obtaining a clock comparator sign control to be used to determine a type of operation to be used in a clock comparing operation used to control processing within a processor of the computing environment, the type of operation being selected from multiple types of operations including unsigned arithmetic and signed arithmetic; and
controlling the processing within the processor of the computing environment using the clock comparator sign control the controlling the processing comprising using the clock comparator sign control in a comparison of a value of a clock comparator and at least a portion of a value of a time-of-day clock to correctly determine whether a selected action is to be recognized by the processor, wherein the clock comparator is one size and the time-of-day clock is an extended time-of-day clock of a different size than the clock comparator, and wherein the time-of-day clock may overflow.