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Re: [Qemu-devel] [PULL 00/12] ppc-for-2.12 queue 20180108


From: Richard Henderson
Subject: Re: [Qemu-devel] [PULL 00/12] ppc-for-2.12 queue 20180108
Date: Tue, 9 Jan 2018 16:41:30 -0800
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.5.0

On 01/09/2018 07:15 AM, Peter Maydell wrote:
> (This is a build for arm32, running in a chroot on an aarch64
> box, non-debug build.)

It's an arm backend problem.

For 64-bit setcond2, we do

0x6e5c3fa4:  e1570008  cmp      r7, r8
0x6e5c3fa8:  01550004  cmpeq    r5, r4
0x6e5c3fac:  b3a09001  movlt    sb, #1
0x6e5c3fb0:  a3a09000  movge    sb, #0

which looks good, but only works for LTU not LT.

I'll work on a fix.


r~



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