On 01/18/2011 06:17 PM, Blue Swirl wrote:
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.
Hi!
Thank you for your answer!
So if I understand well if I set env->gpr in a code section where there
is no TCG translation on progress, I can edit directly the target CPU
register right?
Best Regards!
Stefano B.
