[OpenBIOS] Adding to a definition
tarl-b2 at tarl.net
Fri Apr 13 19:49:10 CEST 2012
>> You can also use (patch) with the XT's if the words are not
>> externally visible.
> 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...
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