[avr-gcc-list] saving __zero_reg_

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[avr-gcc-list] saving __zero_reg__ in interrupt

From:	Frieder Ferlemann
Subject:	[avr-gcc-list] saving __zero_reg__ in interrupt
Date:	Tue Jan 30 04:11:04 2001

Hi,

both gcc 2.97 and 2.95 save, clear and restore the __zero_reg__
in interrupt routines. (-->6 Bytes for each interrupt).
Saving/restoring seems redundant as this register 
should hold (holds) zero anyway.

Is there a way to switch off this behaviour?

Thanks

Frieder

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[avr-gcc-list] saving __zero_reg__ in interrupt, Frieder Ferlemann <=
- Re: [avr-gcc-list] saving __zero_reg__ in interrupt, Marek Michalkiewicz, 2001/01/29
  - Re: [avr-gcc-list] saving __zero_reg__ in interrupt, Frieder Ferlemann, 2001/01/29
    - Re: [avr-gcc-list] saving __zero_reg__ in interrupt, Bernt Hustad Hembre, 2001/01/29
    - Re: [avr-gcc-list] saving __zero_reg__ in interrupt, Frieder Ferlemann, 2001/01/30

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