DETERMINING THE STATUS OF RUN-TIME-INSTRUMENTATION CONTROLS

The invention relates to determining the status of run-time-instrumentation controls. The status is determined by executing a test run-time-instrumentation controls (TRIC) instruction. The TRIC instruction is executed in either a supervisor state or a lesser-privileged state. The TRIC instruction de...

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Main Authors FARRELL, Mark S, GAINEY JR., Charles W, SHUM, Chung-Lung Kevin, SMITH, Brian Leonard
Format Patent
LanguageEnglish
French
German
Published 24.04.2019
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Abstract The invention relates to determining the status of run-time-instrumentation controls. The status is determined by executing a test run-time-instrumentation controls (TRIC) instruction. The TRIC instruction is executed in either a supervisor state or a lesser-privileged state. The TRIC instruction determines whether the run-time-instrumentation controls have changed. The run-time-instrumentation controls are set to an initial value using a privileged load run-time-instrumentation controls (LRIC) instruction. The TRIC instruction is fetched and executed. If the TRIC instruction is enabled, then it is determined if the initial value set by the run-time-instrumentation controls has been changed. If the initial value set by the run-time-instrumentation controls has been changed, then a condition code is set to a first value.
AbstractList The invention relates to determining the status of run-time-instrumentation controls. The status is determined by executing a test run-time-instrumentation controls (TRIC) instruction. The TRIC instruction is executed in either a supervisor state or a lesser-privileged state. The TRIC instruction determines whether the run-time-instrumentation controls have changed. The run-time-instrumentation controls are set to an initial value using a privileged load run-time-instrumentation controls (LRIC) instruction. The TRIC instruction is fetched and executed. If the TRIC instruction is enabled, then it is determined if the initial value set by the run-time-instrumentation controls has been changed. If the initial value set by the run-time-instrumentation controls has been changed, then a condition code is set to a first value.
Author GAINEY JR., Charles W
SMITH, Brian Leonard
FARRELL, Mark S
SHUM, Chung-Lung Kevin
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DocumentTitleAlternate BESTIMMUNG DES ZUSTANDES VON LAUFZEITINSTRUMENTENSTEUERUNGEN
DÉTERMINER L'ÉTAT DE COMMANDES D'INSTRUMENTATION DU TEMPS D'EXÉCUTION
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Snippet The invention relates to determining the status of run-time-instrumentation controls. The status is determined by executing a test run-time-instrumentation...
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SubjectTerms CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
Title DETERMINING THE STATUS OF RUN-TIME-INSTRUMENTATION CONTROLS
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