Re: cgen->sim question

[Doug Evans <dje at sebabeach dot org>]

Dmitry Eremin-Solenikov wrote:
> Hello,
>
> On Mon, Oct 26, 2009 at 7:12 PM, Doug Evans <dje@sebabeach.org> wrote:
>   
> > Dave Korn wrote:
> >     
> > > Dmitry Eremin-Solenikov wrote:
> > >
> > >       
> > > > Hello,
> > > >
> > > > I have a question regarding generating sim code from cgen description.
> > > >
> > > > I have an instruction operand instantiated from field with type h-addr.
> > > > If in the semantics part of the instruction I try to access the operandr
> > > > as an address: '(mem QI ddaddr)', I get an error from cgen:
> > > >
> > > > simplify.inc:131:3: op:new-mode: invalid mode for operand `ddaddr': USI
> > > >
> > > > This is the definition of ddaddr:
> > > >
> > > > (dif f-dd-1 "1-byte direct address at 1 position" (ABS-ADDR) 8 8 0 8 UINT
> > > > #f #f)
> > > > (dno ddaddr "direct address" () h-addr f-dd-1)
> > > >         
>
>   
> > What does the instruction definition look like?
> >     
>
> Please see the attachment. The stamp-cpu (cgen-cpu-decode) fails on
> this CPU file.
>
>   

I checked in this patch.

2009-10-28  Doug Evans  <dje@sebabeach.org>

       * cos.scm (object-assign!): New function.
       * mode.scm (/mode-set-word-params!): Call it.