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Re: [Qemu-devel] mulu2 not implemented for tcg target sparc


From: Palle Lyckegaard
Subject: Re: [Qemu-devel] mulu2 not implemented for tcg target sparc
Date: Sun, 10 Jan 2010 21:17:46 +0000 (UTC)
User-agent: Alpine 2.01 (NEB 1266 2009-07-14)

On Sun, 10 Jan 2010, Blue Swirl wrote:


Is it needed somewhere?


I was trying to run qemu-system-mips with a NetBSD malta kernel that generates a MIPS mult operation. Tracing the code through tcg points at a missing mulu2 opreration for sparc.

>> It will be generated for instance for some muls when the target >> is i386 (not even x86_64) on a 32-bit host.

In that case mulu2 support would be useful for Sparc32 host too.
Palle, are you planning to dig into this?

Yes I will try even if my tcg and SPARC assembly skills and very limited (so far...)

Regards
Palle




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