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Re: [avr-gcc-list] 'MOVW' instruction in new ATtiny.


From: Dmitry K.
Subject: Re: [avr-gcc-list] 'MOVW' instruction in new ATtiny.
Date: Wed, 8 Feb 2006 08:28:23 +1000
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Perfectly! Thanks, Anatoly!
This is very needed now.

Whether you plan to add an __AVR_HAVE_LPMX__ ?

One suggestion about 'macros.inc': define __AVR_HAVE_MOVW__
as `1' (not as an empty string).  All predefined macroses are
defined as `1' (__AVR__, __AVR_ENHANCED__, __AVR_ATmega8__ ...).
This give a possibility to use the simple construction like
`#if __AVR__' which is false in case of undefined or 0.
Another advantage of such definition is a possibility
the simple loop at testing time, like:

    for movw in 0 1 ; do
       avr-gcc -D__AVR_HAVE_MOVW__=$movw ...

Thanks,
Dmitry.





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