Re: as problem

["Christopher C. Chimelis" <chris@debian.org>]

On 19 Jan 2002, Falk Hueffner wrote:

> > > This works if I pass -Wa,-mpca56. But it will *not* work if I also use
> > > -mcpu=ev56 for gcc, since gcc then emits .arch ev56 into the .s, and
> > > as complains ev56 can't handle unpkbw. What should I do? Convince gcc
> > > not to emit .arch? Convince as to prefer the command line option? Some
> > > other suggestions?
> > 
> > Basically, you can't use any of those MVI extensions on any processor that
> > doesn't support it (>= PCA56, IIRC).  That code should probably have a
> > conditional around it that depends on an amask check of the processor's
> > support for MVI.
> 
> Yes, I know, and it is protected by amask.  I just want it to
> compile/assemble, but the assembler refuses to do so if it finds .arch
> ev56.

So you want ev56 scheduling with pca56 instruction support to get this to
assemble?  IIRC, the scheduling code between the two processors doesn't
differ...only it's instruction support.  '-mcpu=pca56 -mno-bwx' may
allow it to compile and assemble while disabling generation of code to use
the BWX instruction sets (which aren't present on ev56, but are on pca56).

C