Joel Rees:
"Modern" CPUs have plenty of spare register space, most of it undocumented. Register space can be used to record something of state, allowing instruction streams to be self-parsing.
Anyway I think this falls mostly in the hardware side. I liked microcode to be libre too, but I'm postponing that goal for later. As my main goal now is software to be libre.
When libre software is the standard, then I will start talking about libre hardware.
Have a nice day.
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