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Re: [avr-gcc-list] AVR assembly for fast bit bang
From: |
Daniel O'Connor |
Subject: |
Re: [avr-gcc-list] AVR assembly for fast bit bang |
Date: |
Thu, 10 Nov 2005 00:19:00 +1030 |
User-agent: |
KMail/1.8.2 |
On Wed, 9 Nov 2005 21:25, Mike S. wrote:
> Thanks for the reply Daniel O'Connor, but I usually don't use the
> optimization until I try a couple of and optimization techniques. I
> already had some bad experiences with the optimization in some Texas
> Instruments DSPs...
If you don't tell GCC to do *any* optimisation it will generate really
terrible code. -O is very well tested, I suggest you use it. Just because one
compiler somewhere generated bogus code when asked to optimise doesn't mean
they all do it.
I'm not suggesting GCC is bug free either, but trying to use unoptimised code
on a microcontroller is asking for serious code size and performance issues.
> I use AVR-GCC.
Well that's good since this is the avr-gcc list :)
--
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
-- Andrew Tanenbaum
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- [avr-gcc-list] AVR assembly for fast bit bang, Mike S., 2005/11/08
- Re: [avr-gcc-list] AVR assembly for fast bit bang, Hugo González Monteverde, 2005/11/08
- Re: [avr-gcc-list] AVR assembly for fast bit bang, Daniel O'Connor, 2005/11/08
- Re: [avr-gcc-list] AVR assembly for fast bit bang, David Kelly, 2005/11/08
- Re: [avr-gcc-list] AVR assembly for fast bit bang, Mike S., 2005/11/09
- Re: [avr-gcc-list] AVR assembly for fast bit bang,
Daniel O'Connor <=
- Re: [avr-gcc-list] AVR assembly for fast bit bang, Peter Fuhrmann, 2005/11/09
- Re: [avr-gcc-list] AVR assembly for fast bit bang, Jesper Hansen, 2005/11/09
- Re: [avr-gcc-list] AVR assembly for fast bit bang, Nils Springob, 2005/11/09
- Re: [avr-gcc-list] AVR assembly for fast bit bang, David Brown, 2005/11/10
- Re: [avr-gcc-list] AVR assembly for fast bit bang, Mike S., 2005/11/16
- Re: [avr-gcc-list] AVR assembly for fast bit bang, Dave Hansen, 2005/11/09