Automated testing failing at msr and vcvt.f32.f16

[Wunkolo]

Across different branches(and PRs), I'm getting fuzz-test failures in particular around the msr instruction and vcvt.f32.f16 qn, dm. Also seems to have happened on master a few times.

msr failures https://github.com/MerryMage/dynarmic/pull/619/checks?check_run_id=2721379195#step:10:144 https://github.com/MerryMage/dynarmic/pull/619/checks?check_run_id=2721379100#step:10:146 https://github.com/MerryMage/dynarmic/pull/616/checks?check_run_id=2712829271#step:10:148 https://github.com/MerryMage/dynarmic/pull/619/checks?check_run_id=2750055067#step:10:148 https://github.com/Wunkolo/dynarmic/runs/2721267611?check_suite_focus=true#step:10:146

mainline instances https://github.com/MerryMage/dynarmic/runs/2710439806#step:10:817

vcvt fixed in https://github.com/MerryMage/dynarmic/commit/828959caedfac2d456a0c877fda4612e35fffc03 ~~vcvt.f32.f16 failures~~ ~~https://github.com/MerryMage/dynarmic/pull/619/checks?check_run_id=2721379161#step:10:173~~ ~~https://github.com/MerryMage/dynarmic/pull/616/checks?check_run_id=2712829139#step:10:171~~ ~~https://github.com/MerryMage/dynarmic/pull/619/checks?check_run_id=2750055095#step:10:172~~ ~~https://github.com/MerryMage/dynarmic/pull/619/checks?check_run_id=2750055106#step:10:175~~ ~~https://github.com/Wunkolo/dynarmic/runs/2721292621?check_suite_focus=true#step:10:173~~ ~~https://github.com/Wunkolo/dynarmic/runs/2721267582?check_suite_focus=true#step:10:173~~

~~mainline instances~~ ~~https://github.com/MerryMage/dynarmic/runs/2710422780#step:10:172~~

[Wunkolo]

The vcvt.f32.f16 issue seems to be an issue when processing float16 NaN values like 0xff88 turning into 0xfff10000 while unicorn is expecting 0x7fc00000(default nan) despite the DN flag not being set though. Unicorn might be the one default-nan-ing things when it shouldn't.

[merryhime]

msr looks like a weird unicorn bug where it thinks the instruction is 2 bytes instead of 4.

[merryhime]

vcvt fixed in 828959caedfac2d456a0c877fda4612e35fffc03