AVR-Chat

Thanks Kelly,
I'm not sure of all that "volatile" does (I know I need it for variables 
that I use both in interrupts and out).
The lines may have been executed, but it's very... not nice when 10 XOR 00 = 
00 because another line has been executed without me knowing.
I may turn optimization back on after I'm finished debugging, I'll see if it 
still works.

Thanks again,

Cat

--------------------------------------------------
From: "David Kelly" <dkelly@hiwaay.net>
Sent: Sunday, June 08, 2008 12:19 PM
To: <AVR-Chat@yahoogroups.com>
Subject: Re: [AVR-Chat] AvrStudio4 (2008), WinAVR (2007-05...) and Dragon 
problem debugging C code (jtag)

>
> On Jun 7, 2008, at 5:13 PM, Cat Hotmail wrote:
>
>> I'm having this weird problem whereby I am able to debug, and to step
>> through the program, but it just ignores/skips some of the lines.
>
>
> As you have found when -Os is changed to -O0 all your "lines" appear
> as expected in the debugger. You didn't say whether "skipped" lines
> were executed or not, I suspect they were. Just optimized to where the
> debugger couldn't single out and associate assembly code with source
> code.
>
> To some extent you could use more volatile modifiers to create
> distinct source code line demarcations that will single step debug.
>
> --
> David Kelly N4HHE, dkelly@HiWAAY.net
> ========================================================================
> Whom computers would destroy, they must first drive mad.
>
>
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