psx is 0, so don't even bother checking #609
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There's some churn here, apparently caused by an issue and a PR vanishing. The PR appears to be "Simplify _FDscale in xfdscale.cpp (microsoft#609)"; the user's account appears to have been deleted.
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Description
In xfdscale, there is a tertiary statement checking if psx is not equal to 0, despite two statements ago assigning psx to 0. Such a statement is a waste.
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