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From: | Fabrice Bellard |
Subject: | Re: [Qemu-devel] [4705] Fix div[u]2. |
Date: | Mon, 09 Jun 2008 10:34:05 +0200 |
User-agent: | Thunderbird 2.0.0.5 (X11/20070727) |
malc wrote:
Revision: 4705 http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=4705 Author: malc Date: 2008-06-09 06:06:25 +0000 (Mon, 09 Jun 2008) Log Message: ----------- Fix div[u]2. Previous code assummed 32 by 32 bit divmod operation, and survived x86_64 test only by sheer luck. MIPS wasn't so forgiving.
Are you sure it is needed ? div[u]2 support in currently optional in TCG. On some hosts such as PowerPC, implementing div[u] directly is simpler. rem[u] can be implemented generically then.
Fabrice.
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