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From: "Frank Ch. Eigler" <fche@redhat.com>
To: Peter Gavin <pgavin@gmail.com>
Cc: cgen@sourceware.org, sid@sourceware.org
Subject: Re: cgen, GNU gdb/sim, and full system simulation
Date: Fri, 18 May 2012 12:52:00 -0000	[thread overview]
Message-ID: <20120518125227.GE11460@redhat.com> (raw)
In-Reply-To: <CAKEMJMp8RP3xhvptyWQn4yqbTaXXOD7e4oSB2c4bg__ARrjtEg@mail.gmail.com>

Hi, Peter -

> Ok.  But we're primarily doing this for GDB, and I suppose gdb can't
> use sid, is that right?

gdb can use sid (via the remote protocol).  Several gdb/toolchain
ports have used sid as the execution backend for e.g. testsuites.

> [...]
> > To me, the more interesting question would be the choice to model
> > virtual memory as a separate component between the CPU and the memory
> > and I/O buses (which would suite sid's modeling very well), vs
> > something purely internal to the CPU model.
> 
> Yeah, I was hoping I could just define a memory in the .cpu file with
> define-hardware and have custom get and set methods, but it looks like
> that won't work :)

Yeah, cgen by itself is not well-suited for modeling such aspects of
the microarchitecture.

- FChE

      reply	other threads:[~2012-05-18 12:52 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAKEMJMqCY3DrU++LRZQMRCFwxndp0EK+4n-ufHMTz7OUGG7aiQ@mail.gmail.com>
2012-05-16 17:07 ` Frank Ch. Eigler
2012-05-18 12:46   ` Peter Gavin
2012-05-18 12:52     ` Frank Ch. Eigler [this message]

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