mirror of https://github.com/xemu-project/xemu.git
2b55e479e6
Compared to other SSE instructions, VUCOMISx and VCOMISx are different:
the single and double precision versions are distinguished through a
prefix, however they use no-prefix and 0x66 for SS and SD respectively.
Scalar values usually are associated with 0xF2 and 0xF3.
Because of these, they incorrectly perform a 128-bit memory load instead
of a 32- or 64-bit load. Fix this by writing a custom decoding function.
I tested that the reproducer is fixed and the test-avx output does not
change.
Reported-by: Gabriele Svelto <gsvelto@mozilla.com>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1637
Fixes:
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|---|---|---|
| .. | ||
| sysemu | ||
| user | ||
| bpt_helper.c | ||
| cc_helper.c | ||
| cc_helper_template.h | ||
| decode-new.c.inc | ||
| decode-new.h | ||
| emit.c.inc | ||
| excp_helper.c | ||
| fpu_helper.c | ||
| helper-tcg.h | ||
| int_helper.c | ||
| mem_helper.c | ||
| meson.build | ||
| misc_helper.c | ||
| mpx_helper.c | ||
| seg_helper.c | ||
| seg_helper.h | ||
| tcg-cpu.c | ||
| tcg-cpu.h | ||
| tcg-stub.c | ||
| translate.c | ||