PATCH: Move operand/address-size override prefixes before SIMD prefix

[Menezes, Evandro]

> Thank you, but it does not. Because presence of both 0xf2 and 0xf3 in
> the byte stream is not covered by this paragraph (perhaps the
> situation is explained elsewhere in the manual?)

Yes, elsewhere: "The result of using multiple prefixes from a single group is unpredictable." (in "AMD64 Architecture Programmer's Manual Volume 3: General-Purpose and System Instructions", rev. 3.12, p. 3)

HTH

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Evandro Menezes               AMD            Austin, TX