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authorChristian Krinitsin <mail@krinitsin.com>2025-07-17 09:10:43 +0200
committerChristian Krinitsin <mail@krinitsin.com>2025-07-17 09:10:43 +0200
commitf2ec263023649e596c5076df32c2d328bc9393d2 (patch)
tree5dd86caab46e552bd2e62bf9c4fb1a7504a44db4 /results/scraper/fex/4319
parent63d2e9d409831aa8582787234cae4741847504b7 (diff)
downloadqemu-analysis-main.tar.gz
qemu-analysis-main.zip
add downloaded fex bug-reports HEAD main
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+Reciprocal estimate not accurate enough
+Currently on systems with rpres extension we generate `frecpe` for a `pfrcp`. The AMD manual mentions:
+
+> The maximum error is less than or equal to 1.5 * 2^–12 times the true reciprocal. 
+
+Unfortunately for, for example 1.0, the result of `frecpe` is 0.998047. The result should be within `(1.00037 | 0.999634)` to be within the required accuracy.
+
+Should check other functions as well.
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