Yokemate of Keyboards
Posts: 12023 from 2003/5/22
> POWER9 [...] in 2017
Apparently, POWER9 will implement the new Power ISA 3.0.https://www.sourceware.org/ml/binutils/2015-11/msg00071.htmlhttps://www.ibm.com/developerworks/community/blogs/fe313521-2e95-46f2-817d-44a4f27eba32/entry/Announcing_a_New_Era_of_Openness_with_Power_3_0?lang=enhttp://openpowerfoundation.org/blogs/power-3-0/http://openpowerfoundation.org/presentations/entering-a-new-era-of-openness-with-power-3-0/http://www.docdroid.net/file/download/tWT7hjD/powerisa-v30.pdfhttps://en.wikipedia.org/wiki/Power_ISA#Power_ISA_v.3.0
Power ISA 3.0b published in March 2017:https://openpowerfoundation.org/?resource_lib=power-isa-version-3-0
Significant quote from Power ISA 3.0 spec:
"In 2006, Freescale and IBM collaborated on the creation of the Power ISA Version 2.03, which represented the reunification of the architecture by combining Book E content with the more general purpose PowerPC Version 2.02. Power ISA Version 3.0 continues this integration by providing a single Book III for all Power implementations, and also by eliminating optional architecture categories to ensure increased application portability between Power processors.
Updated quote from Power ISA 3.0b spec:
"In 2006, Freescale and IBM collaborated on the creation of the Power ISA Version 2.03, which represented the reunification of the architecture by combining Book E content with the more general purpose PowerPC Version 2.02. The resulting architecture included environment-specific privileged architecture optimizations (two Book IIIs) and optional application-specific facilities (categories) as extensions to a pervasive base architecture. Power ISA Version 3.0 B focuses this integration by choosing a single Book III and a set of widely used categories to become part of the base architecture for all forward-looking Power implementations. All other optional architecture categories have been eliminated to ensure increased application portability between Power processors. Legacy embedded applications that require the eliminated material will continue to use V. 2.07B.
Funny thing to say that Power ISA 3.0 "continues" or "focuses" the integration of PowerPC ISA and Book E ISA, when in fact it essentially *reverts* this integration by eliminating the parts that Book E ISA had brought into it.
Edit: added more links
Edit2: added Power ISA 3.0b
Edit3: added quotes and comment[ Edited by Andreas_Wolf 05.03.2019 - 12:07 ]