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Clock comparator sign control

  • US 10,423,191 B2
  • Filed: 01/19/2017
  • Issued: 09/24/2019
  • Est. Priority Date: 01/19/2017
  • Status: Active Grant
First Claim
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1. A computer program product for facilitating processing in a computing environment, said computer program product comprising:

  • a computer readable storage medium readable by a processing circuit and storing instructions to perform a method comprising;

    obtaining a clock comparator sign control to be used to determine whether unsigned arithmetic or signed arithmetic is to be used in a comparing operation;

    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 determine whether a selected action is to be recognized, wherein the using the clock comparator sign control in the comparison results in correctly indicating whether the selected action is to be recognized, regardless of whether the time-of-day clock has overflowed; and

    performing, by a processor, based on the comparison, the selected action.

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