<digshadow> cyrozap: do you have any interest in giving an mtvre talk on psoc stuff
<digshadow> ie in about a week
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<cyrozap> digshadow: I'm not in CA...
<cyrozap> Also, pointfree has been doing most of the work for a while now; I've taken a break to focus on some other projects.
<digshadow> gotcha
<digshadow> I might have mixed you up again
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<pointfree> digshadow: I've been preparing a talk on bitstream reversal using Mill's Methods with a focus on the Cypress PSoC 5LP.
<pointfree> This is a lot like Karnaugh maps or Quine-McCluskey: bits that vary are merged. In fact I am looking into the possibility of running logic synthesis on the regmap.
<pointfree> constraint_mask | variance_mask == i | variance_mask // where "i" is the current address to be displayed or not to be displayed with its name.
<pointfree> I can filter the flat PSoC 5LP regmap simply with a pair of bitmasks (a constraint bitmask and a variance bitmask). I can list any meaningful subset of registers with just a constraint and variance bitmask!
<pointfree> I use Mill's Methods to isolate causation between wires (.route file) and switches (bitstream, aka config.hex)
<pointfree> Right now, I just thought, I want to use the isolated bits as the bitmasks for filtering bitstream, not just regmaps.
<digshadow> pointfree: preparing a talk for the 8th?
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<rqou> WOOT MY ROOM IS FINALLY ORGANIZED
<rqou> everything has been either put into a spot (not on the floor) or converted to a negative externality :P
<lain> floor
<lain> the largest shelf.
<rqou> nah, "my parents' house" is larger :P
<lain> haha
<lain> hokay, sleep time
<rqou> that's part of the "negative externality" :P
<rqou> the rest of it is "the hallway"
<lain> I want an underground lair
<lain> multi-story underground facility
<lain> on shocks to withstand earth quakes, like skyscrapers in japan. we don't have earthquakes here but if I'm going to build a massive underground lair I might as well go all out.
<rqou> i have an underground lair, it'
<lain> prettymuch the only natural disaster that occurs here is tornados, and we've only had one of those in my lifetime that I'm aware of - it was actually just last summer, went right across the street here, scared the bejesus out of me
<rqou> it's called "the CS building"
<lain> lol nice
<rqou> which actually has ~2 floors below ground
<rqou> where the undergrad lab is
<rqou> as well as sooper sekrit grad student showers :P
<lain> it was like the smallest possible tornado that could still be classed as a tornado
<lain> it tore some branches off a tree up the street and javelin'd them clean through someone's living room windows
<lain> there were misc. twigs like sticking straight out of roofs
<lain> it was crazy
<lain> I'm sitting here at my computer and I notice the trees outside have really started to sway, then I realize they're bending like 90deg and that's not just wind
<lain> never ran so fast in my life :P
<rqou> hmm google images can't find any photos of the "CS dungeon"
<rqou> only glamor shots of outside
<lain> but yeah I figure - underground lair, tornado will just go over top
<lain> needs to be a fallout shelter in case the nearest nuclear plant goes pop
<lain> I'd be in the fallout zone for that
<lain> I wonder how you deal with the water table when doing deep underground construction
<lain> do you just seal the crap out of the outer walls and, I dunno, repair it periodically as stuff finds a way through? lol
<rqou> idk, but $FANCY_SCHOOL has a literal abandoned mineshaft to understand how to deal with earthquake faults
<lain> sweet.
* lain -> slp
<rqou> notice how the fault goes right through the stadium
<lain> lol fuck
<rqou> for many years you could famously crawl under the door to the mineshaft (it had a ~1ft gap at the bottom)
<rqou> that was fixed before i got there
<rqou> oh god milo will be at $FANCY_SCHOOL tomorrow
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<cyrozap> Here's a friendly reminder that even "professional" hosted services can permanently lose data/go down for extended periods of time: https://docs.google.com/document/d/1GCK53YDcBWQveod9kfzW-VCxIABGiryG7_z_6jHdVik/pub
* cyrozap git pulls azonenberg/openfpga.wiki
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<pie_> pointfree, is this the statistical method everyones been talking about?
<rqou> cyrozap: why does gitlab even allow pulling production data into staging? i thought that was recommended against due to it being much harder to secure staging envs
<pointfree> pie_: Mill's Methods were invented before statistics https://en.wikipedia.org/wiki/Mill's_Methods
<pointfree> If you're thinking of that new statistical test for causality, I don't know anything about it.
<pie_> i have no idea
<pie_> just some people sometimes mentioned some things aout bitstream reversing but noone said anything when i asked
<pointfree> Maybe I should know something about that new statistical test, but what I'm effectively doing is applying logic synthesis to bitstream reversal.
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<pie_> that makes sense
<pie_> i havent done anything like this (yet?) but im very interested in what kind of work people have done :)
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<ZipCPU|Laptop> eduardo: My plan is to get this project on GitHub running on the ZipCPU on the icoBoard: https://github.com/ZipCPU/tttt
<ZipCPU|Laptop> Right now, it only builds for the PC --- but it is a rather fun game, even if the interface isn't the best.
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<nats`> I'm prettya ngry
<nats`> my oshstencil are marked as delivered on 10 january but I never got anything :\
<nats`> will have to reorder
<nats`> that's boring there is a lot of lost mails in my area
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<rqou> i think my apartment has too many power strips in use
<rqou> power strip --> extension cord --> power strip --> extension cord --> UPS --> power strip --> cheater plug --> wall
<rqou> elsewhere: microwave --> power strip
<trap15> sounds like a recipe for fire
<rqou> fire? don't know what you're talking about /s
<rqou> this is the reason why the us electrical code keeps increasing the required minimum number of outlets in a home
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<azonenberg> Worst i have is UPS -> extension cord in crawl space going to garage -> rack PDU -> power strip
<azonenberg> UPS is fed by a wall outlet in the house
<azonenberg> Because the garage is only fed by a single 20A circuit and i cant run the servers, dehumidifier, and soldering irons etc off that
<nats`> the pain of 110V :D
<azonenberg> so i feed all of the computers plus overhead lighting and test equipment off the UPS and then have the hot air, reflow oven, dehumidifier, etc on the other circuit
<rqou> why can't we just get 300vdc power distribution?
<azonenberg> yeah 2kW is not enough
<azonenberg> rqou: lol
<nats`> DC would be stupid
<nats`> edison wanted DC everywhere :D
<rqou> mostly-compatible with existing cables, compatible with future solar/"smart" grid ideas
<azonenberg> i'd be ok with 3-phase long-haul then 48V DC for in-room distribution
<azonenberg> 48V is still SELV
<rqou> and mostly-compatible with existing smps designs
<azonenberg> its already an industry standard
<azonenberg> its easy to buck down to 12 or so
<rqou> don't you mean -48V :P
<rqou> thanks telcos
<azonenberg> No, +48
<rqou> wait, who uses +48V?
<azonenberg> I was planning to
<azonenberg> Just so i can have a reasonable ground reference
<azonenberg> telco uses -48 b/c it provides protection against galvanic corrosion for outdoor stuff
<rqou> right, but afaik the "standard" is actually -48V
<azonenberg> of no significance indoor/dry
<rqou> yeah
<mtp> yeah
<azonenberg> Yeah but if you have an isolated 48V supply
<azonenberg> you can easily hook it up one way or the other
<nats`> - or + are just reference
<nats`> but going DC for long distance is stupid
<azonenberg> Well, low voltage DC for long distance sure
<rqou> or you can have a non-isolated supply and then short out the supply via the db9 shell :P
<azonenberg> tens or hundreds of kV DC avoids inductive losses
<azonenberg> i've heard of some lines preferring it
<rqou> not like that has happened before :P
<azonenberg> rqou: lol
<rqou> the company my father used to work for did that by accident
<rqou> the psu in the box they were making was isolated
<nats`> but DC means huge rectifier at power source...
<rqou> and the db9 shell was supposed to be too afaik
<rqou> but somebody somehow nicked/damaged the soldermask near the edge of the pcb
<nats`> + there are some physical effect on oxydising line when using dc vs ac
<rqou> so the db9 would work until you plugged a heavy cable into it
<rqou> which would mechanically bend the connector ever so slightly and short the shell to the exposed ground plane