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RE: [Simulavr-devel] Uniform the code
From: |
Weddington, Eric |
Subject: |
RE: [Simulavr-devel] Uniform the code |
Date: |
Sun, 12 Apr 2009 09:59:19 -0600 |
> On Sun Apr 12 2:05 , "Weddington, Eric" sent:
>
> >> -----Original Message-----
> >> From:
> >> address@hidden
> >> [mailto:address@hidden
> >> u.org] On Behalf Of address@hidden
> >> Sent: Saturday, April 11, 2009 7:48 PM
> >> To: '' simulavr-devel @ nongnu . org ''; 'Michael N . Moran'
> >> Subject: Re: [Simulavr-devel] Uniform the code
> >
> >> Eric's comment on speed suggests a vote against pointers.
> >> I haven't noticed any votes for pointers.
> >
> >Please note that I am agnostic when it comes to
> methods/algorithms; I'm not a
> C++ programmer. But instead of having bickering on the list,
> I suggest that it be
> solved with scientific methods: code up the different ways to
> do it, test each
> one and see which method is the fastest. Numbers and
> measurement should rule the
> argument.
>
> The test shouldn't be too hard to run.
> We already have an example of each.
> We just need code that will run on both an atmega128 and a atmega48.
> I'd be rather surprised if adding a layer of indirection
> speeded up the simulation.
> The question would be whether the slowdown was significant.
Something to keep in mind: simulavrxx will be used (eventually) to run the GCC
Regression Test Suite, which contains thousands of tests. Even if there was a
neglible slowdown, even only at simulavrxx startup (not just during
simulation), it will be noticable in the aggregate when running this test suite.
> Absent either a major surprise about speed or news about the
> benefits of pointers,
> we should aggregate cpu parts directly.
>
> Bickering?
I'm just trying to stop it before it starts. ;-)
- [Simulavr-devel] Uniform the code, Knut Schwichtenberg, 2009/04/11
- Re: [Simulavr-devel] Uniform the code, address@hidden, 2009/04/11
- Re: [Simulavr-devel] Uniform the code, address@hidden, 2009/04/11
- RE: [Simulavr-devel] Uniform the code, address@hidden, 2009/04/12
- RE: [Simulavr-devel] Uniform the code,
Weddington, Eric <=
- RE: [Simulavr-devel] Uniform the code, address@hidden, 2009/04/12