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To: Elena Zannoni <ezannoni@redhat.com>
cc: Andrew Cagney <ac131313@cygnus.com>, Richard.Earnshaw@arm.com,
        gdb@sources.redhat.com
Reply-To: Richard.Earnshaw@arm.com
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Subject: Re: REGISTER_BYTE() and pseudos 
In-reply-to: Your message of "Wed, 15 May 2002 13:35:14 EDT."
             <15586.40018.722458.418880@localhost.redhat.com> 
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Date: Wed, 15 May 2002 11:08:00 -0000
From: Richard Earnshaw <rearnsha@arm.com>
X-SW-Source: 2002-05/txt/msg00176.txt.bz2

OK, I see what you are doing.  Basically, if a pseudo maps onto a real 
register somewhere in the regcache, you return the address of that.

However, what should be done if the pseudo doesn't exist as a single 
entry, or if it is a manipulation of a real register?  For example, on the 
ARM, the CPSR may be just a few bits retrieved from the PC.

Also, what would you do if you needed to address two non-adjacent 
registers?

R.