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Re: [avr-gcc-list] Avr-gcc Removing Port Register Access


From: Joerg Wunsch
Subject: Re: [avr-gcc-list] Avr-gcc Removing Port Register Access
Date: Sun, 27 Aug 2006 21:50:02 +0200 (MET DST)

"Nigel Winterbottom" <address@hidden> wrote:

> This is just another case of gcc code optimisation confusing those
> who are perhaps unfamiliar with the output of an optimising
> compiler.

Yep, that's a typical situation where the compiler is smarter than
an assembly programmer perhaps would be.  Good analysis, Nigel!

Tomdean:

> #ifndef _SBI_TEST_H_
> #define  _SBI_TEST_H_

Be careful with that.  Macro names starting with an underscore,
followed by a capital letter are reserved for compiler and library
use.

-- 
cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/                        NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)





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