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Re: Clarification on vid.v
Done. Thanks Roger.
From: Roger Espasa <roger.espasa@...>
Date: Sunday, October 4, 2020 at 12:49 PM
To: Joseph Rahmeh <Joseph.Rahmeh@...>
Cc: "tech-vector-ext@..." <tech-vector-ext@...>, Robert
Done. Thanks Roger.
From: Roger Espasa <roger.espasa@...>
Date: Sunday, October 4, 2020 at 12:49 PM
To: Joseph Rahmeh <Joseph.Rahmeh@...>
Cc: "tech-vector-ext@..." <tech-vector-ext@...>, Robert
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By
Joseph Rahmeh <joseph.rahmeh@...>
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#447
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Re: Clarification on vid.v
Joseph,
May I suggest you open a git issue here: https://github.com/riscv/riscv-v-spec/issues with these two questions? It will help better tracking and will ensure whatever the resolution is, it does
Joseph,
May I suggest you open a git issue here: https://github.com/riscv/riscv-v-spec/issues with these two questions? It will help better tracking and will ensure whatever the resolution is, it does
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By
Roger Espasa
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#446
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Clarification on vid.v
Should vid.v raise an illegal instruction exception when masked and when the destination group overlaps v0 ?
Should vid.v raise an illegal instruction exception when vstart > 0 ?
Should vid.v raise an illegal instruction exception when masked and when the destination group overlaps v0 ?
Should vid.v raise an illegal instruction exception when vstart > 0 ?
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By
Joseph Rahmeh <joseph.rahmeh@...>
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#445
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Apologies - zoom on again if people can make
Krste
By
Krste Asanovic
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#444
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Re: Vector TG meeting tomorrow
I will add my thoughts related to "embedded" imprecise:
Why embedded specifically?
Linux handles GPUs as coprocessors. My understanding is that by their nature, the internal state
I will add my thoughts related to "embedded" imprecise:
Why embedded specifically?
Linux handles GPUs as coprocessors. My understanding is that by their nature, the internal state
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By
David Horner
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#443
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Re: Vector TG meeting tomorrow
Is there already a doc/issue specific to this imprecise handling that we can reference before and during the meeting?
Is there already a doc/issue specific to this imprecise handling that we can reference before and during the meeting?
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By
David Horner
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#442
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Vector TG meeting tomorrow
Reminder we’ll be meeting tomorrow in usual slot.
I’d like to spend the time discussing imprecise trap handling for embedded vector systems.
Hopefully, we can all see the new correct link on
Reminder we’ll be meeting tomorrow in usual slot.
I’d like to spend the time discussing imprecise trap handling for embedded vector systems.
Hopefully, we can all see the new correct link on
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By
Krste Asanovic
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#441
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Re: Proposing more portable vector cod
Never say never.
Appears to be the mantra for V extension.
Yes, the intent is that the V specification mandates LMUL of 8, 4 and 1.
Even for minimal systems of VLEN=128; not only for
Never say never.
Appears to be the mantra for V extension.
Yes, the intent is that the V specification mandates LMUL of 8, 4 and 1.
Even for minimal systems of VLEN=128; not only for
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By
David Horner
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#440
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Re: Proposing more portable vector cod
Hi Joseph,
Thanks for the clarification.
The wording in the spec is admittedly vague: "LMUL can have integer values 1,2,4,8.", etc. My understanding of the intent is that all implementations must
Hi Joseph,
Thanks for the clarification.
The wording in the spec is admittedly vague: "LMUL can have integer values 1,2,4,8.", etc. My understanding of the intent is that all implementations must
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By
Nick Knight
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#439
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Re: Proposing more portable vector cod
Hi Nick,
Thanks for the reply. I was not asking for non-power of 2 LMUL. I was asking about LMUL values not supported by some implementation.
Let’s say that for SEW=128, an implementation
Hi Nick,
Thanks for the reply. I was not asking for non-power of 2 LMUL. I was asking about LMUL values not supported by some implementation.
Let’s say that for SEW=128, an implementation
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By
joseph.rahmeh@...
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#438
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Re: Proposing more portable vector cod
Sorry, in case it wasn't clear: typo
it's not too much of a burden.
Sorry, in case it wasn't clear: typo
it's not too much of a burden.
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By
Nick Knight
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#437
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Re: Proposing more portable vector cod
Hi Joseph,
Thanks for your comments. I apologize, but I don't fully understand your proposal, or the problem it solves. To help explain my confusion, here are two thoughts.
The supported LMUL (and
Hi Joseph,
Thanks for your comments. I apologize, but I don't fully understand your proposal, or the problem it solves. To help explain my confusion, here are two thoughts.
The supported LMUL (and
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By
Nick Knight
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#436
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Proposing more portable vector cod
In the latest vector proposal (draft of version 1.0), there is the following restriction on widening instructions (section 11.2)
For all widening instructions, the destination EEW and EMUL values
In the latest vector proposal (draft of version 1.0), there is the following restriction on widening instructions (section 11.2)
For all widening instructions, the destination EEW and EMUL values
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By
Joseph Rahmeh <Joseph.Rahmeh@...>
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#435
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Re: Vector TG meeting minutes 2020/9/25
I am in favour of effectively weakening the scalar/vector vector/scalar load/load order requirement.
However, this cannot be performed in isolation without regard to the rest of the RVWMO
I am in favour of effectively weakening the scalar/vector vector/scalar load/load order requirement.
However, this cannot be performed in isolation without regard to the rest of the RVWMO
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By
David Horner
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#434
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Vector TG meeting minutes 2020/9/25
Date: 2020/9/25
Task Group: Vector Extension
Chair: Krste Asanovic
Co-Chair: Roger Espasa
Number of Attendees: ~14
Current issues on github: https://github.com/riscv/riscv-v-spec
Issues
Date: 2020/9/25
Task Group: Vector Extension
Chair: Krste Asanovic
Co-Chair: Roger Espasa
Number of Attendees: ~14
Current issues on github: https://github.com/riscv/riscv-v-spec
Issues
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By
Krste Asanovic
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#433
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Re: Please check new Google calendar for new vector TG meeting link
Nick fowarded the old deprecated calendar.
https://sites.google.com/a/riscv.org/risc-v-staff/home/tech-groups-cal
Is the new unified tech group calendar.
It is very hard to find, we're working on
Nick fowarded the old deprecated calendar.
https://sites.google.com/a/riscv.org/risc-v-staff/home/tech-groups-cal
Is the new unified tech group calendar.
It is very hard to find, we're working on
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By
Krste Asanovic
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#432
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Re: Please check new Google calendar for new vector TG meeting link
It looks like there are two calendars – one on the risc-v site, and one on google (someone else sent to me). And the ZOOM meeting invites are not the same between them :\
-Cohen
From: Nick
It looks like there are two calendars – one on the risc-v site, and one on google (someone else sent to me). And the ZOOM meeting invites are not the same between them :\
-Cohen
From: Nick
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By
CDS <cohen.steed@...>
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#431
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Re: Please check new Google calendar for new vector TG meeting link
Hi Cohen,
I can see the calendar here: https://lists.riscv.org/g/tech-vector-ext/calendar
Unfortunately, due to a conflict I can only rarely attend the TG meeting.
Best,
Nick
Hi Cohen,
I can see the calendar here: https://lists.riscv.org/g/tech-vector-ext/calendar
Unfortunately, due to a conflict I can only rarely attend the TG meeting.
Best,
Nick
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By
Nick Knight
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#430
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Re: Please check new Google calendar for new vector TG meeting link
Can you publish a link to what the Google Calendar is, or the TG meeting link? There are no links on this site to any of that information.
Can you publish a link to what the Google Calendar is, or the TG meeting link? There are no links on this site to any of that information.
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By
CDS <cohen.steed@...>
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#429
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Re: Mask Register Value Mapping
You got my thumbs up!
Definitely "something similar" and better that my more cryptic proposal.
Thanks you Cohen for raising these concerns and Nick for moving this along so
You got my thumbs up!
Definitely "something similar" and better that my more cryptic proposal.
Thanks you Cohen for raising these concerns and Nick for moving this along so
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By
David Horner
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#428
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