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| author | Mateja Marjanovic <Mateja.Marjanovic@rt-rk.com> | 2019-04-02 14:11:49 +0200 |
|---|---|---|
| committer | Aleksandar Markovic <amarkovic@wavecomp.com> | 2019-05-26 17:32:31 +0200 |
| commit | d2a40a5f6938f30f44b536e997e1e89bb62b971c (patch) | |
| tree | ea519320aa5f8fbcaca697858aee64fb26d7c00f /hw/core/qdev-properties-system.c | |
| parent | a7b21f6762a2d6ec08106d8a7ccb11829914523f (diff) | |
| download | focaccia-qemu-d2a40a5f6938f30f44b536e997e1e89bb62b971c.tar.gz focaccia-qemu-d2a40a5f6938f30f44b536e997e1e89bb62b971c.zip | |
target/mips: Make the results of DIV_<U|S>.<B|H|W|D> the same as on hardware
MSA instructions DIV_<U|S>.<B|H|W|D> when dividing by zero,
didn't return the same value when executed on a referent hardware
(FPGA MIPS 64 r6, little endian) and when executed on QEMU, which
is not a real bug, because the result when dividing by zero is
UNPREDICTABLE [1] (page 141, 142).
[1] MIPS Architecture for Programmers
Volume IV-j: The MIPS64 SIMD
Architecture Module, Revision 1.12
Signed-off-by: Mateja Marjanovic <mateja.marjanovic@rt-rk.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Message-Id: <1554207110-9113-2-git-send-email-mateja.marjanovic@rt-rk.com>
Diffstat (limited to 'hw/core/qdev-properties-system.c')
0 files changed, 0 insertions, 0 deletions