It would be interesting. Could you publish them again if it isn't too much trouble.
Andres On 03.09.2010, at 12:46, JMGross wrote: > I think I published the file some time ago here in the list. But maybe not > the latest > version. > > JMGross > > ----- Ursprüngliche Nachricht ----- > Von: William "Chops"Westfield > An: GCC for MSP430 - http://mspgcc.sf.net > Gesendet am: 03 Sep 2010 09:28:43 > Betreff: Re: [Mspgcc-users] Multiplication using Horner's method > > > On Sep 2, 2010, at 12:35 PM, Andres Vahter wrote: > >> I would like to use Horner's method for fast multiplication on >> MSP430f2234. >> I found source files from: >> http://focus.ti.com/general/docs/litabsmultiplefilelist.tsp?literatureNumber=slaa329 > > You need to read the app note associated with that code, which is here: > http://focus.ti.com/lit/an/slaa329/slaa329.pdf > > It says, among other things: > "The memory requirement is much higher for Horner's method since, for > each multiplier or > divisor, the code is different. In cases where speed is of prime > concern, this is not a serious limitation." > > That is, the multiplication algorithm they talk about (and the > performance improvement they get) is only suitable for a constant > multiplier. > > If you need multiplication faster than that provided by the C > compiler, you probably have to give up some that the C compiler > assumes. It's not like the C compiler writers sit around going "Well, > we're a HLL, so we can make our multiply function needlessly > complex!" One possibility is a mixed-size multiplication. C > (probably) assumes a 16x16bit multiply, and if you KNOW your arguments > are always going to be less than 16 bits, you can write a > significantly faster multiply function. > > BillW > > > ------------------------------------------------------------------------------ > This SF.net Dev2Dev email is sponsored by: > > Show off your parallel programming skills. > Enter the Intel(R) Threading Challenge 2010. > http://p.sf.net/sfu/intel-thread-sfd > _______________________________________________ > Mspgcc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/mspgcc-users > > > ------------------------------------------------------------------------------ > This SF.net Dev2Dev email is sponsored by: > > Show off your parallel programming skills. > Enter the Intel(R) Threading Challenge 2010. > http://p.sf.net/sfu/intel-thread-sfd > _______________________________________________ > Mspgcc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/mspgcc-users
