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ppc/translate: Fix unordered f64/f128 comparisons
According to the PowerISA v3.1 reference, Table 68 "Actions for xscmpudp - Part 1: Compare Unordered", whenever one of the two operands is a NaN the SO bit is set while the other three bits are cleared. Apply the same change to xscmpuqp. The respective ordered counterparts are unaffected. Signed-off-by: Giuseppe Musacchio <thatlemon@gmail.com> Message-Id: <20201112230130.65262-2-thatlemon@gmail.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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