Re: HLL for dsp compiler?

On Mon, 31 Aug 1998, Dwight VandenBerghe wrote:


> On 30 Aug 1998 10:19:53 -0400, Kent Stenman
> <kent.stenman@emw.ericsson.se> wrote:
> >My question is which language is the best front-end language for dsp
> >compilers?
>
> This is a tough call, Kent. There are a number of problems with
> current languages and DSPs - having separate address spaces (like A nd
> B for the Motorola chips), having extremely fast and tight
> instructions that are designed to be used in specific ways, like the
> multiply-and-adds that overlap, and the special REPEAT instructions
> that do the next single instruction a given number of times using only
> one cycle each. These are not things that can be easily seen or
> optimized by a compiler for FORTRAN or C or Pascal or Limbo or Ada.
>
> I've been thinking about the problem for a while, with the intention
> of writing a DSP compiler that would out-perform the current offerings
> (Archelon, etc). I think the solution is to design a new, C-like
> language that caters to the anomalies of the DSP world. I'm working
> on it. Are you? Should we talk?
>


My professor has been working on an optimizing retargetable DSP compiler
called codegen(T). It uses a varient of C as the front end, and
employs enhanced genetic algorithms to select feasible solutions based on
the program, DSP architecture and timing constraints. For more
information take a look at http://shakti.cis.uoguelph.ca


Regards,


Brent
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