[DOC Patch] Explicit Register Variables

[Jeff Law]

On 06/30/14 23:51, David Wohlferd wrote:
>
> My proposed patch says "When selecting a register, choose one that is
> normally saved and restored by function calls on your machine. This
> ensures library routines which are unaware of this reservation will
> restore it before returning."  This platform-neutral statement seems to
> cover what needs to be said here.
Let's go with your platform-neutral statement.  *If* someone comes back 
with real world feedback on this stuff, we can always update.

Jeff