A sign from the forest department in Wayanad, Kerala.
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A sign from the forest department in Wayanad, Kerala.
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undefined oblomov@sociale.network shared this topic on
Gli ultimi otto messaggi ricevuti dalla Federazione
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@theleftistlawyer do you have to already have an attorney for that to work (and if so are they expensive?)? or can you, like, rent a used one at the clink
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@aeva I thought that's what we did by coming here.
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@aeva You can have values that are different but their difference is a subnormal value and suddenly with FTZ you have div-by-0s, yeah.
(This is super rare but still.)
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@rygorous ah, so for example, a not quite zero value and zero compare differently depending on whether DAZ is on, stuff like that?
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@aeva the main thing that breaks without denormals on is that some numeric code might start slightly misbehaving in rare corner cases you're unlikely to notice, and certain assumptions like "if (a != b) then a-b != 0" don't hold with denormals off
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@aeva me and the DSP classic: "why does it get very slow after the envelope fades out"
I solved this when I was doing a synth in Flash by adding noise
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@aeva It's fine for audio code but when you turn it on, you generally want to put it in a scope guard thingy that saves the original MXCSR and restores it after (way out in the outer loop, not per function or anything, toggling that isn't super cheap) because it changes the results of some float calcs and breaks a few rules that while not _super_ important might trip you up
