On Tue, Jan 18, 2011 at 9:29 AM, Stefano Bonifazi <stefboombas...@gmail.com> wrote: > Hi all! > I am working on qemu-user (qemu-ppc). > I'd like to edit the values of target registers during the execution. Can I > do that by simply changing the content of env->gpr[] or do these only > contain a copy of the values of the registers? > In this last case, where are the real values of the target registers stored > so that by modifying them I can alter the behavior of the target code > execution?
env->gpr is the canonical location, but the translator assigns TCG variables to them (cpu_gpr[] in translate.c), so GPR contents may be cached to these. But when helpers are called or the TB finishes, env->gpr should be valid again.
