From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:59790) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R5Ewu-0000cs-Jb for qemu-devel@nongnu.org; Sun, 18 Sep 2011 06:50:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1R5Ewt-0001N7-8F for qemu-devel@nongnu.org; Sun, 18 Sep 2011 06:50:12 -0400 Received: from fe02x03-cgp.akado.ru ([77.232.31.165]:61840 helo=akado.ru) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1R5Ewt-0001HS-0N for qemu-devel@nongnu.org; Sun, 18 Sep 2011 06:50:11 -0400 Date: Sun, 18 Sep 2011 14:49:47 +0400 (MSD) From: malc In-Reply-To: Message-ID: References: <4E74FC29.1050003@mail.berlios.de> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Subject: Re: [Qemu-devel] [PATCH 0/8] tcg/interpreter: Add TCG + interpreter for bytecode (virtual machine) List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Blue Swirl Cc: Stuart Brady , QEMU Developers , TeLeMan On Sun, 18 Sep 2011, Blue Swirl wrote: > On Sat, Sep 17, 2011 at 7:59 PM, Stefan Weil wrote: > > Hello, > > > > these patches add a new code generator (TCG target) to qemu. > > > > Unlike other tcg target code generators, this one does not generate > > machine code for some cpu. It generates machine independent bytecode > > which is interpreted later. That's why I called it TCI (tiny code > > interpreter). > > > > I wrote most of the code two years ago and included feedback and > > contributions from several QEMU developers, notably TeleMan, > > Stuart Brady, Blue Swirl and Malc. See the history here: > > http://lists.nongnu.org/archive/html/qemu-devel/2009-09/msg01710.html > > > > Since that time, I used TCI regularly, added small fixes and improvements > > and rebased it to latest QEMU. Some versions were tested using > > ARM (emulated and real), PowerPC (emulated) and MIPS (emulated) hosts, > > but normally I run it on i386 and x86_64 hosts. > > > > I'd appreciate to see TCI in QEMU 1.0. > > > > Regards, > > Stefan Weil > > > > The patches 2 and 4 are optional, patch 8 is only needed for running > > TCI on a PowerPC host. > > I think patches 1 to 4 and 8 could be applied soon as they are now, > they should benefit plain TCG too. I had some comments to other > patches, but otherwise everything looks great. Hold the horses untill Stefan settles the licensing issues. > > Comparisons to other bytecode interpreters (for example Python) would > be interesting, maybe there are also tricks that can be reused. > > > [PATCH 1/8] tcg: Declare TCG_TARGET_REG_BITS in tcg.h > > [PATCH 2/8] tcg: Don't declare TCG_TARGET_REG_BITS in tcg-target.h > > [PATCH 3/8] tcg: Add forward declarations for local functions > > [PATCH 4/8] tcg: Add some assertions > > [PATCH 5/8] tcg: Add interpreter for bytecode > > [PATCH 6/8] tcg: Add bytecode generator for tcg interpreter > > [PATCH 7/8] tcg: Add tcg interpreter to configure / make > > [PATCH 8/8] ppc: Support tcg interpreter on ppc hosts > > > > > -- mailto:av1474@comtv.ru