Handhabung von Last-Exklusiven Befehlen in einer Vorrichtung mit Unterstützung für Transaktionalen Speicher

Details

Veröffentlichungs-Nr.

EP3588280

Aktenzeichen

EP18386018

Anmeldetag

25. Juni 2018

Veröffentlichung

8. September 2021

Erteilung

8. September 2021

Rechtsraum

EP

IPC

G06F9/30G06F9/38G06F9/52

Abstract

<div notation="docdba" type="abstract" xml:lang="en"><p>An apparatus is described with support for transactional memory and load/store-exclusive instructions using an exclusive monitor indication to track exclusive access to a given address. In response to a predetermined type of load instruction specifying a load target address, which is executed within a given transaction, any exclusive monitor indication previously set for the load target address is cleared. In response to a load-exclusive instruction, an abort is triggered for a transaction for which the given address is specified as one of its working set of addresses. This helps to maintain mutual exclusion between transactional and non-transactional threads even if there is load speculation in the non-transactional thread.</p></div>

Anmelder

Firma

ARM Limited

Land

🇬🇧 Großbritannien

Fachgebiete