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From: | Peter Maydell |
Subject: | Re: [Qemu-stable] [Qemu-devel] [PATCH 1/4] target-i386: fix {min, max}{pd, ps, sd, ss} SSE2 instructions |
Date: | Sat, 7 Jan 2012 20:22:53 +0000 |
On 7 January 2012 20:09, Aurelien Jarno <address@hidden> wrote: > minpd, minps, minsd, minss and maxpd, maxps, maxsd, maxss SSE2 > instructions have been broken when switching target-i386 to softfloat. > It's not possible to use comparison instructions on float types anymore > to softfloat, so use the floatXX_min anf floatXX_max functions instead. Nope, this gets the x86 special cases wrong. This has been discussed here before: http://www.mail-archive.com/address@hidden/msg85557.html has the right implementation (from Jason Wessell) and a comment (from me) about why it's right. -- PMM
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