Yokemate of Keyboards
Posts: 11445 from 2003/5/22
>> Power ISA "3.0C"? Never heard of that. Does anybody have a link to that "3.0C" spec?
> some mention of Power ISA 3.0C in slides from ICS in June 2020
> (page 2): [...] (further mentions on pages 3 and 6)
> Respective presentation: https://www.youtube.com/watch?v=0zIwLCnIuqg
Revised presentation from OpenPOWER Summit NA 2020:https://www.youtube.com/watch?v=ZGvEpd4vNK0
Inexplicably, the occurences of "3.0c"/"3.0C" on pages 2/3 got replaced by "3.0", which is of course plain wrong as neither has Power ISA v3.0 from 2015 (or v3.0B from 2017) been contributed to the OpenPOWER Foundation nor does v3.0 (or v3.0B) have any compliancy subsets. Both things started only with v3.0C/3.1.
These changes to the slides must have been made deliberately. What the heck is going on there?
Edit: "V3.0C" mentioned in https://www.youtube.com/watch?v=SO8a8zcAiZc
(at 13:00 and 20:04) and https://video.fosdem.org/2021/D.power/microwatt_grows_up.mp4
(at 5:00 and 13:33)
(Btw, funny how Paul Mackerras in the first video at 11:45 claims that the ISA renaming in 2006 from PowerPC ISA (v2.02) to Power ISA (v2.03) by Power.org happened because Freescale allegedly had very much stopped using the ISA so that it was pretty much just about the IBM POWER line of server CPUs at that time (and in the second video at 4:18 that it happened because IBM allegedly was the only company using the ISA or making any new CPUs with it), when in fact the opposite is true, namely that the renaming represented the incorporation of the Book-E extensions (implemented by IBM PPC440/PPC460 and Freescale e200/e500 back then, which are embedded class and thus as un-POWER as possible) into the official ISA specification.)[ Edited by Andreas_Wolf 18.02.2021 - 22:03 ]