[Speex-dev] Fixed Point on Renesas M32C?

Jean-Marc Valin Jean-Marc.Valin at USherbrooke.ca
Wed Jan 13 09:57:37 PST 2010

Quoting Andy Hewitson <andy.hewitson at gmail.com>:

> Hi All,
> I'm a Speex newbie wanting to figure if it's worth trying to get the fixed
> point decoder working on an M32C processor.  It has a hardware 16x16->32
> multiply and a 16x16+48->48 multiply/accumulate in about 8 cycles and runs
> at 25Mhz.  No shortage of RAM.

If it takes 8 cycles to do a 16x16 multiply and it runs at 25 MHz, I can almost
guarantee that (unless there's something very special I don't know about) it's
not fast enough to run Speex in real-time.


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