From: Andriy Gapon <avg@FreeBSD.org>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] bug in popcnt emulation with some register operand(s)?
Date: Mon, 08 Oct 2012 02:12:53 +0300 [thread overview]
Message-ID: <50720C75.30109@FreeBSD.org> (raw)
I am running Qemu (plain, no kvm, etc) on an AMD 10h machine that provides
popcnt instruction.
Qemu advertises availability of pocnt to a guest as well.
What I see in the guest that popcnt 0x20(%r12),%r8 instruction actually placed
its result into %rax. With %rdi and %rax operands the instruction worked fine
though.
--
Andriy Gapon
next reply other threads:[~2012-10-07 23:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-07 23:12 Andriy Gapon [this message]
2012-10-08 7:52 ` [Qemu-devel] bug in popcnt emulation with some register operand(s)? malc
2012-10-08 9:02 ` Andriy Gapon
2012-10-10 21:03 ` Andriy Gapon
2012-10-10 21:09 ` malc
2012-10-14 10:25 ` Andriy Gapon
2012-10-14 10:56 ` malc
2012-10-14 11:01 ` Andriy Gapon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=50720C75.30109@FreeBSD.org \
--to=avg@freebsd.org \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.