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Message
From: Mike Wiles <mwiles@a...>
Date: Thu, 21 Aug 2003 21:59:58 -0500
Subject: Re: [openrisc] Instruction Fetch
Damjan,
Does the simulation model also model the floating point instructions
and does it give accurate timing for them?
Thanks,
Mikew
At 01:58 PM 08/21/2003 +0200, you wrote:
>Heya !
>
>I'm not sure what you mean exactly but I'll tell you the following. For
>example the code is being executed from an instruction cache, and if there
>is an instruction cache miss, the pipeline will continue to execute
>instructions regardless it is waiting for instruction cache to complete the
>cache line and start deliverting instructions to the pipeline. That means
>while instruction cache is not delivering instructions, pipeline is feed by
>NOPs.
>
>regards,
>Damjan
>
>----- Original Message -----
>From: "#KUGAN VIVEKANANDARAJAH#" <kugan@p...>
>To: <openrisc@o...>
>Sent: Thursday, August 21, 2003 11:59 AM
>Subject: [openrisc] Instruction Fetch
>
>
> >
> > Hi again,
> > I am simulating the orp_soc to see the instruction fetch architecture.
> > It seems that instruction fetch is being stalled alternate clk cycle and
> > a NOP instruction is added by or1200_if. Is it because some thing is
> > wrong with my or1200_defines ? Or is there any reason for this.
> >
> > Am I miss understanding it completely?
> >
> > Thanks in advance,
> > Kuagn
> >
> >
> >
>
>
>
>
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