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Re: [avr-gcc-list] Using hardware multiplier on ATmega128L


From: David Gay
Subject: Re: [avr-gcc-list] Using hardware multiplier on ATmega128L
Date: Fri, 22 Oct 2004 10:11:01 -0700
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040124

John Rehwinkel wrote:
In particular I have this kind of instruction on my NeSC program (NeSC is a "dialect" of C language ...):


Good and bad news. The code you've written is already using the hardware multiply... (avr-gcc's 32-bit multiply routine for atmega128 uses the hardware multiply).


Actually, I doubt it. AFAIK, gcc doesn't support NeSC, so he's probably using a different compiler.

I should've included more background: nesC compiles to C code which is then passed to avr-gcc (and I should know, given that I wrote the nesC compiler ;-)).

David Gay


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