This is why it's so important for compilers to comply strictly to spec & not do foolish transformations that change results.
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And x87 has no way to implement actual double arithmetic. So 2 is the only practical option without partial or full soft float.
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You forgot the MUCH MORE PRACTICAL option: DON'T USE X87, EVER.
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thank the gods for SSE
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now to get Intel to implement my crackpot scheme to remove x87 and x86
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They almost removed x87 on Phi but didn’t
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they didn’t on fucking /Phi/? holy shit why
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The scalar multiplier used x87 on P54C and they didn’t want to write and verify a new one
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/sobbing intensifies/
End of conversation
New conversation -
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^^^^ The spec allows either rounding after each op, or maintaining higher working precision, but you have to declare which and stick to it.
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