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Re: [avr-gcc-list] Global variables and ISRs ???

From: Joerg Wunsch
Subject: Re: [avr-gcc-list] Global variables and ISRs ???
Date: Wed, 7 Sep 2005 16:41:57 +0200 (MET DST)

"David Brown" <address@hidden> wrote:

> ..., and it will also change "multiply by constant" into a series of
> shifts and adds.  The target chip has a hardware multiplier and
> divider, but they are slower than the shift-and-add sequences.

Unfortunately, AVR-GCC also does this, even though the hardware
multiplier is faster than a series of shift and add. :-(

J"org Wunsch                                           Unix support engineer
address@hidden        http://www.interface-systems.de/~j/

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