On Friday 17 August 2007 11:21:14 am Luck, Tony wrote:
> > IA64_PSR_RI is in IPSR_MASK, apparently by intent.  
> > If you want to change the behavior, you should simply change that mask.
> 
> psr.ri is more complex because it is two bits where not all of the
> possible bit settings are defined. We definitely want to allow ptrace
> to set psr.ri (how else can we single step through instructions in
> a bundle?)  But we should only allow psr.ri to be set to 0, 1, or 2.

This confused me, too, because the changelog and comments say
"PSR.ri bits 3 are reserved" and "psr.ri bits 11 are reserved".

Something like "PSR.ri value 3 is reserved" would have made
the intent more clear.

Bjorn
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