Hi Jean,

> If you think it's not enough, then the address modifier could go
> separately before or after the address byte, i.e. either r1@0x123t or
> r1@t0x123. I suspect that the latter should be easier to implement.

In deed, I would aim for maximum flexibility (i.e. possible to mix 7 and
10 bit addresses), and implement the latter proposal of yours.

> > Handling R/W as "just another" flag made this option extremly simple.
> > But we probably can work something out.
> 
> I think the proposal above makes more sense than grouping it with the
> direction letter (r or w)

I agree.