Clock comparator sign control
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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Abstract
A clock comparator sign control is used in a compare operation. A clock comparator sign control that determines whether unsigned arithmetic or signed arithmetic is to be used in a comparing operation is obtained. The clock comparator sign control is then used 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.
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Citations
20 Claims
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A computer system for facilitating processing in a computing environment, said computer system comprising:
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a memory; and a processor in communication with the memory, wherein the computer system is configured to perform a method, said 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 the processor, based on the comparison, the selected action. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A computer-implemented method of facilitating processing in a computing environment, said computer-implemented method comprising:
obtaining, by a processor, 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 the processor, based on the comparison, the selected action. - View Dependent Claims (16, 17, 18, 19, 20)
Specification