[OpenBIOS] Re: Implementing map-in

[Segher Boessenkool]

On Mon, Jul 29, 2019 at 12:29:35PM +0200, Howard Spoelstra wrote:
> > > --- a/forth/device/other.fs
> > > +++ b/forth/device/other.fs
> > > @@ -58,21 +58,27 @@ defer (poke)
> > > \ 5.3.7.2 Device-register access
> > >
> > > : rb@    ( addr -- byte )
> > > ioc@
> > > ;
> > >
> > > : rw@    ( waddr -- w )
> > > iow@
> > > ;
> > >
> > > : rl@    ( qaddr -- quad )
> > > iol@
> > > ;
> > >
> > > : rb!    ( byte addr -- )
> > > ioc!
> > > ;
> > >
> > > : rw!    ( w waddr -- )
> > > iow!
> > > ;
> > >
> > > : rl!    ( quad qaddr -- )
> > > iol!
> > > ;
> > >
> > > : rx@ ( oaddr - o )

Note that all those are bus-specific, and a correct implementation of
these words has to look at the FCode 235 (etc.) of the bus you are on,
and inherited from its parent bus, etc.

Segher