c4x - TMS320C30-40

[Joel Sherrill]

Peter Lambert wrote:
> 
> > What target did oyu use and how many patches did it require?
> 
> I used mike haynes "stable" release of "c4x-gcc" the target HW is 320C31.
> It only took a couple of minor hacks to the machine definition sections of
> newlib to get it all to compile.  This was yesterday.

If Michael has paperwork on file with the FSF, then it should be
possible to
get these merged.  I recall that someone else (Sveidal?) is focusing
more
on the c4x these days.  But if the paperwork is OK and you can get a
working
toolset, then it might be time to push again on getting them merged.

> > Are you using the c3x simulator for gdb that was available as a patch
> > a while back?  [Hmmm.. is it merged now?]
> 
> Not yet.  There appears to be bits of mike's code in the core gcc sources
> and some bits not there so I used his stable patches against the nearest
> source versions I could find (mike has gdb patches).  I'll drop you a note
> if I get gdb to work OK.

The simulator in gdb was a big godsend for testing tools and algorithms
on.

> > I recall it being much more complicated.  There were dependencies
> > on NaN, interpreting bits in the numbers in various ways.
> 
> It's always more complicated than a newbie thinks.  It's a strict DSP
> project (but a personal one as a break from writing embedded code and
> designing HW all day) with a bit of minor control stuff that I'd prefer to
> use C for.  It will probably make no difference to me if the floating point
> library doesn't work.  But given the time I'll have a go.

:) 
 
> Peter Lambert

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