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Re: [avr-gcc-list] SREG save?


From: David Breeze
Subject: Re: [avr-gcc-list] SREG save?
Date: Tue, 14 Dec 2004 13:23:56 +0000

> if you want your interrupt routine to run
> uninterruptible, you should use INTERRUPT() rather
> than SIGNAL().

As i recall:
INTERRUPT() runs with global interrupts enabled.
SIGNAL() runs with global interrupts disabled.

/Mattias S

Correct.  
Also if you check the listing of an interrupt (SIGNAL) service routine you will 
find that the SREG is save for you.

David Breeze



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