[REBOL] Re: On mutability and sameness
From: chris:starforge:demon at: 13-Jun-2001 15:38
Joel Neely wrote:
> "Referrable" "Non-referrable"
>
> Immutable ROM data, output CPU status data (hardware
> registers of ID on some CPUs), overflow
> some memory-mapped bits, etc.
> controllers
I'd disagree with the overflow bits etc - on some CPUs (certainly
ARM, I think PPC) it is possible to not only directly view the
status registers but to alter the state of the bits they contain
under program control (not as side-effects of other instructions,
but directly).
Just playing devil's advocate ;)))
Chris
