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RISC-V 101 (Shared screen with speaker view)
Jack Kang
23:08
Ask him to ask questions in the Q&A so all can see
Jack Kang
23:25
but yes
Palmer Dabbelt
24:07
Ian: can you ask your questions in the Q&A section, that way everyone can see it
Palmer Dabbelt
24:38
there should be a button on your screen that pops out a window
Palmer Dabbelt
27:25
I can answer the priv question
Jack Kang
27:55
ok, go for it Palmer
Megan Wachs
27:59
go for it. Make sure to click “answer by text"
Jack Kang
31:32
can attendees see how many other attendees there are?
Allison Roberts
32:02
I don’t totally remember, but I don’t think I was able to see them before I was promoted
Andrew Boos
32:04
I'm not sure, want me to demote one of you to see their view?
Jack Kang
32:43
as long demotion doesn't risk breaking stuff
Palmer Dabbelt
33:13
I can answer the extensions question
Megan Wachs
33:15
I can answer the how many registers
Jack Kang
33:34
ok. let's make sure we synch here so we don't double answer questions
Andrew Boos
33:43
good idea
Jack Kang
34:34
megan--want to add that r0 is always 0 though?
Megan Wachs
34:43
sure
Megan Wachs
34:46
adding
Megan Wachs
37:22
@palmer can you also answer about the calling convention for F and D?
Palmer Dabbelt
37:26
yep
Allison Roberts
38:42
Does anyone know the answer to the reference card questions?
Megan Wachs
38:49
well, you can find it on google
Megan Wachs
38:54
but I don’t know if it is “canonical”
Megan Wachs
39:08
(I am now googling)
Megan Wachs
39:51
https://www.cl.cam.ac.uk/teaching/1617/ECAD+Arch/files/docs/RISCVGreenCardv8-20151013.pdf
Megan Wachs
39:58
but that is just what you get by googling.
Allison Roberts
40:04
Yeah, that’s the only one I’m finding, but it’s clearly not canonical
Allison Roberts
40:17
Is there a version in the Patterson & Hennessy book?
Megan Wachs
40:17
@krste do you know?
Megan Wachs
40:19
yes
Megan Wachs
40:21
there is
Megan Wachs
40:23
in the front cover
Allison Roberts
41:10
I just asked Slack, in case if anyone knows
Andrew Boos
41:36
I think Krste had to drop off after the intro
Allison Roberts
41:49
Yeah, I think he has office hours right now
Palmer Dabbelt
42:29
I think we can link to the green card online for the one answer
Palmer Dabbelt
42:39
the other one, I think we say the canonical version is in the book
Palmer Dabbelt
42:56
I can answer the RVC one
Jack Kang
43:14
yea the Q&A doesn't contain history. now that i got promoted back to panelist, I "re-joined" and cannot see old questions or answers
Allison Roberts
43:17
I can answer the canonical URL one with what Palmer suggested
Megan Wachs
43:31
ok. Is “Allison Roberts” here Richard?
Allison Roberts
43:35
Yes, haha
Jack Kang
43:43
Andrew can you copy all the Q&A? I think we may want to post them on the website when we post the archive
Andrew Boos
43:48
@Jack I think it shows the history starting when you joined the room - i.e. you will not see much since you switched back and forth
Andrew Boos
43:52
yes agreed will do
Megan Wachs
44:06
So @richard you are answering both Green Card q’s right
Allison Roberts
44:28
Sure, for the downloadable one, I can just link to the UK website one?
Megan Wachs
44:35
yeah
Megan Wachs
44:46
but maybe also mention the canonical ref in the book
Megan Wachs
46:15
allí getting some street cred ;)
Megan Wachs
46:38
can we do something to make the “Thanks” message go away?
Andrew Boos
46:39
crushing it guys!
Andrew Boos
46:57
'no problem, our pleasure' - as an answer lol
Jack Kang
46:59
say "you're welcome" and it'll go away
Megan Wachs
47:00
I mean @richard can you just give it a blank answer, or say “np or something"
Allison Roberts
47:07
We can answer it privately
Allison Roberts
47:16
I’ll do that
Jack Kang
47:18
who is answering the ARMv6-M question
Megan Wachs
47:23
palmer is on it
Jack Kang
48:44
palmer it looks like your answer may have been cut off?
Palmer Dabbelt
50:13
ya, thanks
Megan Wachs
52:57
ill answer luc
Megan Wachs
53:05
yes, right?
Jack Kang
53:20
yes we will make the Q&A available, but i can't copy/paste either
Jack Kang
53:27
maybe andrew can :)
Megan Wachs
53:31
I thought Andrew said we would be able to do so
Andrew Boos
53:35
I am taking screen shots and we can do it manually
Jack Kang
53:37
but the intention is to make it available
Andrew Boos
53:53
i think they are natively recorded in the overall meeting recording
Jack Kang
54:01
ah
Andrew Boos
54:04
but just to be sure I will get screen shots too
Allison Roberts
54:14
Megan, are you going to answer the mtime question?
Megan Wachs
54:23
I think the answer is from U mode no
Megan Wachs
54:27
but m-mode could do anything
Megan Wachs
54:51
@palmer does that sound right?
Palmer Dabbelt
55:18
mtime is only in M mode, and IIRC it's always running
Palmer Dabbelt
55:21
I can answer it
Megan Wachs
55:27
ok
Palmer Dabbelt
55:29
let me dig in the spec for a bit
Megan Wachs
55:35
good idea
Megan Wachs
59:08
FWIW in rocket-chip you can write mtime but you can’t stop it ticking
Jack Kang
01:00:53
should i go ask andrew?
Jack Kang
01:00:58
andrew w
Allison Roberts
01:01:07
Palmer is typing up a response
Palmer Dabbelt
01:01:07
I've got something writte
Jack Kang
01:01:18
ok
Palmer Dabbelt
01:04:57
I can answer the performance counters thing
Megan Wachs
01:05:04
ok good because I have no idea :)
Andrew Boos
01:05:34
no
Andrew Boos
01:05:37
go through a few
Andrew Boos
01:05:44
highlight a few that are broadly explanatory
Andrew Boos
01:05:53
it will make people feel good and fill the remaining few min
Palmer Dabbelt
01:06:24
OK, let me try to dig one up
Megan Wachs
01:06:42
I can answer the Patterson book Q
Jack Kang
01:06:46
Please ask your questions on the Q&A and the team will be able to answer them there
Andrew Boos
01:06:47
ok great
Jack Kang
01:07:04
Do you want to answer it live? since it's Q&A now?
Jack Kang
01:07:42
multiple questions coming in now
Andrew Boos
01:08:14
nice work
Andrew Boos
01:09:31
awesome
Andrew Boos
01:09:45
final softball / broad questions or wrap it up
Andrew Boos
01:10:04
these make attendees feel great since it shows that its interactive
Allison Roberts
01:10:04
Anyone know the answer to the MOOC thing?
Allison Roberts
01:10:14
(Massively Open Online Course)
Andrew Boos
01:10:31
nice
Andrew Boos
01:10:35
thats a wrap
Andrew Boos
01:12:21
any more questions or should I end it
Palmer Dabbelt
01:13:44
does anyone have additional questions?
Andrew Boos
01:13:50
ah got a few more
Jack Kang
01:18:56
we should stay on un til 11:30
Jack Kang
01:20:48
ok i think we are done
Jack Kang
01:21:00
maybe send a message and say stop
Andrew Boos
01:22:35
Thanks for attending! This webinar will conclude and we will send out the recording