flushrs and the backing store

flushrs and the backing store

[umut aymakoglu]

Hi -
Is there some kind of documentation that talks about
what registers are saved in the backing store up to
the current procedure after flushrs instruction and
their layout/structure?

thanks,
Umut 


	
		
__________________________________
Do you Yahoo!?
Win a $20,000 Career Makeover at Yahoo! HotJobs  
http://hotjobs.sweepstakes.yahoo.com/careermakeover 

Re: flushrs and the backing store

[David Mosberger]

>>>>> On Mon, 10 May 2004 10:59:34 -0700 (PDT), umut aymakoglu <umutaymak@yahoo.com> said:

  Umut> Hi - Is there some kind of documentation that talks about what
  Umut> registers are saved in the backing store up to the current
  Umut> procedure after flushrs instruction and their
  Umut> layout/structure?

Sure, the ASDM [1] does.  As does my book (with better figures,
IMHO... ;-) But really, it's quite simple: flushrs writes back all
stacked registers in the dirty partition.  The backing store format
consists of naturally-aligned 64-word blocks (512 bytes), with the
first 63 words use to store register values and the 64-th word use to
store the NaT bits of the first 63 words.

	--david

[1] http://www.intel.com/design/itanium/manuals/iiasdmanual.htm