Mike Smith wrote:
>

> That was one of my points.  the 17Cxx is the upper end
> the PIC family.  A higher cost is more acceptable here.
> Would you be interested in doing benchmarks of your product for
> differing array size memcpy's?

Sure it would be interesting to look at the differences.

> > We have found the value of stack frames in embedded systems
> > to be limited. One of our studies has shown that even a well
> > implemented stack frame only rarily improves performance over
> > a well implimented code generator. RAM usage will be essentially
> > identical. Here again instruction set size becomes a factor, this
> > time it is opcode space.
>
> Even if you were implementing a RT multitasking embedded system?

In small embedded systems the biggest factor is the method used for
context switching. Given a choice I would go for an extra index
register.

Walter Banks
http://www.bytecraft.com