Re: [OpenBIOS] Adding to a definition

[Tarl Neustaedter]

> > You can also use (patch) with the XT's if the words are not 
> > externally visible.
> >
> > Steve
>
> I'm fairly sure that OpenBIOS don't implement either patch or (patch) 
> at the moment. If it's just a case of replacing one XT with another 
> within a word definition, then it shouldn't be too hard - or does it 
> do something more clever?

That's exactly what it does. If you look at the IEEE 1275 definition of 
"patch" and "(patch)", you see it has to do something a bit more 
carefully with numbers vs xt's - replacing "157" with "noop" requires a 
bit of finesse...