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lofty | so-offish: TRELLIS_COMB is a LUT4, or half a CCU2C, or a quarter of a TRELLIS_DPR16X4 | 00:07 |
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so-offish | lofty: Yeah but I need fixed routing; I need to be able to tell the tool "No really: This TRELLIS_COMB, right here" | 00:12 |
so-offish | lofty: I was kinda using TRELLIS_SLICE to get around the packer. | 00:13 |
so-offish | lofty: tnt: Thank you both for your help today. Gotta sign off; I'll bbl. | 00:13 |
lofty | so-offish: the tool for that has always been the BEL attribute in nextpnr. | 00:31 |
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datenwolf | ... *ooff*, I'm getting major Qt related PTSD flashbacks with regard to this exception in the UI code (one of my previous projects sufferd from similar issues after a Qt version bump) | 08:37 |
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so-offish | lofty: saw your answer yesterday about the BEL attribute (rather than using TRELLIS_SLICE directly); thank you. :) | 16:39 |
datenwolf | identified the bug. Locales do strike once again... and here NextPNR is yet another example why stringly typed values are harmful. gui/worker.cc uses std::to_string to convert numerics into property strings (to_string does conversion with locale), timing.cc assign_budget will then retrieve those settings through Context::setting<T> which internally uses boost::lexical_cast<T> that for some reason | 18:10 |
datenwolf | won't use the same locale, as std::to_string. Recommended workaround: On GUI startup nuke the locale and force it to C | 18:10 |
* datenwolf chuckles on the thought, that he's haunted by locale induced numeric<->string roundtrip conversion bugs. first_time_questionmark.gif | 18:12 | |
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so-offish | ok everyone: who is super pumped to help me get setup to help debug this qt issue in nextpnr | 21:57 |
so-offish | That came out more mangled than I intended. | 21:57 |
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so-offish | datenwolf: which bug? | 23:28 |
so-offish | datenwolf: The one I reported earlier? | 23:29 |
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