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<tnt>
Mmm, just got a mouser email that my LIFCL-40-EVN delivery estimate is now 1st February
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<zignig>
tnt: should be able to do some cool stuff with that .
<zignig>
tnt: is this with the intent to get nextpnr, yosys and friends up to speed ?
<tnt>
daveshah already started on it
<zignig>
nice. :)
<zignig>
I am currently approaching a working Boneless serial bootloader, but RealLife(tm) keeps on getting in the way.
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<TD-Linux>
tnt, oh cool. if it's that soon I'll order one
<TD-Linux>
wait are those 3 pmods? has lattice made a good dev kit?
<TD-Linux>
also lol that enormous pot for the 1 adc input
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<tnt>
Maybe I got my hopes up a bit quick. The mouser web site still shows 19 Feb for those boards ... or maybe that's just for new orders ... I guess we'll see soon enough.
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<daveshah>
mwk: might be worth checking with Claire, but I would be tempted to just store all numbers as bit vectors
<daveshah>
The integer thing for 32 bits is probably more pain than it's worth
<mwk>
agreed
<daveshah>
I don't think that should cause much trouble for nextpnr
<mwk>
I think it's the sane thing to do
<daveshah>
Ditto
<sorear>
what's an example of a json library that uses single precision floats as its exclusive number type?
<mwk>
sorear: javascript
<mwk>
also, it's double precision floats
<mwk>
not single
<ZipCPU|Laptop>
Wasn't there a bug report that forced nextpnr into treating integers this way?
<sorear>
javascript floats are double-precision, so that's not an example
<mwk>
I don't think anyone actually does single
<mwk>
(hopefully)
<mwk>
(I'm about to be proven wrong, aren't I)
<sorear>
kc8apf said "should be assumed to be single precision" and I'm requesting sources or evidence on that
<daveshah>
ZipCPU: that was the change that used integers in far fewer cases to deal with things like x and z; and to pass the width of parameters; properly
<ZipCPU|Laptop>
I'm remembering something where we needed to distinguish a string containing "0" from the actual number 0
<mwk>
that is now taken care of by the new "escaping" way
<mwk>
(which is horrible)
<mwk>
(but works)
<daveshah>
Yes, it is horrible
<kc8apf>
sorear: the semantics of JSON numbers are undefined. single-precision float is the most conservative choice knowing that floats are allowed in every case
<mwk>
kc8apf: thank you for explaining the bug I just explained
<hackerfoo>
This is why schemas are useful, to define range, precision, etc.
<ZipCPU|Laptop>
What, not line 594?
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<kc8apf>
mwk: you said it was due to the high-bit being set. It's a bug in the parser due to them checking number of base10 digits instead of actual value range.
<mwk>
kc8apf: look, can you just stop?
<mwk>
all you're saying doesn't matter
<mwk>
the situation is that nextpnr parser mangles incoming ints with bit 31 set
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<OK_b00m3r>
oof.
<mwk>
I really don't care about the json standard, or about which line specifically is causing the problem
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<mwk>
I care about deciding whether we should a) fix the parser (which involves forking off json11), or b) fix the format to not represent the values as numbers
<kc8apf>
or c) sending a PR to json11 or d) combinations of the above
<kc8apf>
I was on my way to providing a patch to json11 to resolve their actual bug but now I'm annoyed by your behavior and will go off to do things that don't involve being harassed for offering to do work on a problem
<hackerfoo>
I worked on the specification of numeric values for WSDL.
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<hackerfoo>
mwk: Probably something like `int x = someDouble;`
<mwk>
hackerfoo: atoi call actually, but whatever
<mwk>
it really does not matter
<kc8apf>
ZipCPU|Laptop: it's a combination of 593 and 594. but mwk told me to stop and doesn't care what the bug is so I'm going to ignore the channel now
<hackerfoo>
Ah. You can use strtold() to be safe.
<mwk>
kc8apf: I can (and did) locate the bug easily enough on my own; I didn't ask for help with that, I asked daveshah for opinion on how to handle this specific case for yosys/nextpnr, and I didn't ask you to explain how json works to me
<mwk>
ditto about schemas, there's no way they could actually help here
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<mwk>
4294967295 is a valid value by design, it just happens to be broken in that given parser
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<kc8apf>
since i'm a glutton for punishment: 4294967295 is a valid unsigned int but not a valid int
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