From: bugzilla-daemon@libre-soc.org
To: libre-riscv-dev@lists.libre-riscv.org
Subject: [libre-riscv-dev] [Bug 310] Function Units to cover multiple tasks
Date: Thu, 14 May 2020 14:47:48 +0000
Message-ID: <bug-310-13-MrfPWtodRd@https.bugs.libre-soc.org/> (raw)
In-Reply-To: <bug-310-13@https.bugs.libre-soc.org/>
https://bugs.libre-soc.org/show_bug.cgi?id=310
Michael Nolan <mtnolan2640@gmail.com> changed:
What |Removed |Added
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CC| |mtnolan2640@gmail.com
--- Comment #1 from Michael Nolan <mtnolan2640@gmail.com> ---
On 5/14/20 10:43 AM, Luke Kenneth Casson Leighton wrote:
> btw, you'll like this: because we are doing a parallel processor,
> different Function Units *can* actually cover multiple tasks let's
> not go into that right now, however if we convert power_enum Function
> into an unary field (1<<0, 1<<1, 1<<2) then we can, in the CSV files,
> set multiple bits.
>
> a good example would be AND and OR and XOR: those are prime candidates
> to put into *both* the Logical *and* Arithmetic pipelines. recorded
> it for now:
> https://bugs.libre-soc.org/show_bug.cgi?id=310
So this is sort of like what intel has on their processors. More complicated
instructions can only execute on one port, but simple and frequently used ones
can run on several.
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Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-14 14:37 [libre-riscv-dev] [Bug 310] New: " bugzilla-daemon
2020-05-14 14:37 ` [libre-riscv-dev] [Bug 310] " bugzilla-daemon
2020-05-14 14:47 ` bugzilla-daemon [this message]
2020-05-14 14:59 ` bugzilla-daemon
2020-05-29 13:42 ` bugzilla-daemon
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