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Port rounding of some x87 instructions from Box86#2242

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ptitSeb merged 2 commits intoptitSeb:mainfrom
Hagb:fpu_rounding
Jan 8, 2025
Merged

Port rounding of some x87 instructions from Box86#2242
ptitSeb merged 2 commits intoptitSeb:mainfrom
Hagb:fpu_rounding

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@Hagb Hagb commented Jan 8, 2025

Ported from ptitSeb/box86#951. The original pull request and this one also contain some improvements on precision of F2XM1 and FYL2XP1.

(Resolve #2237)

Ported from ptitSeb/box86#951. The original pull
request and this commit also contain some improvements on precision of
`F2XM1` and `FYL2XP1`.
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Hagb commented Jan 8, 2025

I think the test case should cover more instructions. I'd like to improve it and submit via a separate PR when I get time.

They have been implemented on dynarec only for ARM64.
@ptitSeb ptitSeb merged commit 653a67c into ptitSeb:main Jan 8, 2025
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ptitSeb commented Jan 8, 2025

Thank you

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Port the PR "Fix rounding of some x87 instructions" from Box86 to Box64

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