public inbox for cgen@sourceware.org
 help / color / mirror / Atom feed
From: Doug Evans <dje@sebabeach.org>
To: "Frank Ch. Eigler" <fche@redhat.com>
Cc: Joseph A <joseph.altmaier@gmail.com>, cgen@sourceware.org
Subject: Re: how can one achieve pipelined operation?
Date: Thu, 02 Jul 2009 03:05:00 -0000	[thread overview]
Message-ID: <4A4C23E6.60401@sebabeach.org> (raw)
In-Reply-To: <20090701105032.GA13767@redhat.com>

Frank Ch. Eigler wrote:
> Hi -
>
>   
>> I have been working on a port for a while now, and I think everything is
>> working except the pipeline.  I have tried changing the values of issue and
>> done in the functional unit description and I have added a pipeline
>> statement to define-model.  What do I need to do to achieve pipelined
>> operation and/or is there an existing example?
>>     
>
> An exposed pipeline is reasonably easily modelled with deferred write
> queues in a sid-based simulator; see the mep port.
>
>   

Thanks.  The semantics for each instruction are generated from cgen, 
but  the pipeline (i.e. instruction fetch, execute, retire) is handcrafted.
[Right?]

Joseph: I think that's the way to go for right now.

  reply	other threads:[~2009-07-02  3:05 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-25 20:54 Joseph A
2009-07-01 10:50 ` Frank Ch. Eigler
2009-07-02  3:05   ` Doug Evans [this message]
2009-07-02 12:09     ` Dave Korn
2009-07-02 12:29     ` Frank Ch. Eigler
2009-07-02 16:45       ` Joseph A
2009-07-12  2:27         ` Frank Ch. Eigler
2009-07-30 20:12           ` Joseph A
2009-07-30 20:19             ` Frank Ch. Eigler

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4A4C23E6.60401@sebabeach.org \
    --to=dje@sebabeach.org \
    --cc=cgen@sourceware.org \
    --cc=fche@redhat.com \
    --cc=joseph.altmaier@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).