<rqou>
hmm, not sure if it's a good or bad thing that i've crammed firefox into its own memory cgroup
<rqou>
pro: doesn't cause whole system to hang
<rqou>
con: still leaks memory
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<sorear>
put a 2GB memory limit on renderer processes so that they crash and have to be restarted occasionally? :p
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<mithro>
daveshah: vpr should again show it's gui on the working-on-fasm-2 branch now
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<daveshah>
mithro: carry4_complete.model.xml seems to be missing
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<awygle>
daveshah: do we know how to program the NVCM on the UP's? Is it in iceprog or similar?
<daveshah>
awygle: Never really looked into it. It is similar to an SPI flash, you can find the exact protocol in the files in a folder called iCE something buried deep inside diamond programmer
<daveshah>
Don't have the path to hand
<awygle>
Mk, just wondering
<tinyfpga>
mithro: do you have a preference for location of ECP5 documenting and VPR work? Might as well put it under SymbiFlow on GitHub
<tinyfpga>
mithro: daveshah and I may need to be added to the symbiflow GitHub organization if we go that route
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<mithro>
morning tinyfpga!
<mithro>
tinyfpga: I'm not answering your questions until you send me that email with the details about were to send this arty board
<mithro>
tinyfpga: me@mith.ro :-P
<mithro>
daveshah: Evening?
<daveshah>
mithro: Hi
<daveshah>
I realise my model.xml generation needs improvement
<mithro>
daveshah: Just looking at that missing file now
<mithro>
daveshah: Not having a working repo makes it hard
<daveshah>
At the moment it won't generate references to sub models
<mithro>
daveshah: Ahh
<mithro>
daveshah: You already know how to do that though, you are doing it in the pb_type.xml right?
<daveshah>
mithro: Yes
<mithro>
daveshah: I'm not all that happy with how the rqou's suggestion for the different modes turned out
<daveshah>
mithro: No, particularly because of how mode naming works
<daveshah>
mithro: you end up needing a wrapper to get the mode name and pb_type name the same
<daveshah>
mithro: I'll hopefully some time next week for improvements
<mithro>
daveshah: I think just having a the code have "if MODE == 'mode_name'" type statements is better
<daveshah>
mithro: yes. And a list of modes in an attribute
<mithro>
daveshah: Enum and Structs are the two SystemVerilog features I keep getting requests for from professionals
<daveshah>
mithro: yeah, they're definitely something that need to be done at some point
<mithro>
daveshah: They should be pretty trivial right? They are just syntactic sugar really?
<daveshah>
mithro: in theory, but may be a bit of work getting parser and stuff all working
<mithro>
daveshah: I wonder if we could put some some bounties for it
<daveshah>
mithro: yeah, could be a good idea
<mithro>
daveshah: They could be good test things for new people?
<daveshah>
mithro: yes, certainly enum. struct might be a little more involved
<mithro>
daveshah: A quick hack would just be to explode the struct out into a flat <structname>_<structmember> name?
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<daveshah>
mithro: yes. It's just a case of making sure it's dealt with correctly in registers etc
<mithro>
daveshah: Hrm? Do they have some type of atomic update?
<daveshah>
mithro: not sure, tbh it's not something I've looked into. AFAIK you can also have a struct in a union
<daveshah>
Then you have to pack and unpack it
<mithro>
daveshah: They have unions too!?
<daveshah>
mithro: I think so. Never used them though
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<mithro>
daveshah: Just steal everything from C it seems ;-)
<daveshah>
They also have packed structs which are similar
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<mithro>
tinyfpga: poke
<mithro>
tinyfpga: for the architecture descriptions, they should just go into the arch-defs repo
<mithro>
tinyfpga: we need to come up with a name for the bitstream documentation project for the ECP5 and then I'll create you a repo under SymbiFlow
<mithro>
I was trying to come up with a name which was something to do with electron beams as a rift on x-rays :-P
<sorear>
consider the company name, and the possibility for double puns using diffraction phenomena
<sorear>
diffraction: Studying Lattices using X-Ray techniques
<awygle>
Yeah, lots of options. crystallography
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<awygle>
The LP384s aren't secretly LP1Ks or something, are they?
<sorear>
i don't think so, yosys has a unique model for them (which it doesn't for the 4k)
<sorear>
s/yosys/icestorm/
<sorear>
i'm curious about the lp640s
<awygle>
I thought those were ULs?
<awygle>
They are not
<azonenberg>
mithro: ooh sv support would be nice
<azonenberg>
especially structs
<azonenberg>
enums would be nice but i can work around it easily with localparams
<azonenberg>
And i'll still be autogenerating tables of constants that are shared between rtl and C from a single master and producing both a .vh and a .h
<awygle>
Not necessary for enum and struct but for broader support
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<tinyfpga>
mithro: Project Penrose
<mithro>
tinyfpga: If you really want :-P
<tinyfpga>
mithro: XD
<tinyfpga>
mithro: he studied and created lattices
<mithro>
tinyfpga: Fair enough
<tinyfpga>
mithro: but it really doesn’t sound cool
<mithro>
tinyfpga: project-roger :-P
<tinyfpga>
mithro: Liberace loved diamonds
<mithro>
tinyfpga: What is Roger Penrose's middle name? then project-rXp
<mithro>
tinyfpga: project-trellis
<mithro>
A trellis (treillage) is an architectural structure, usually made from an open framework or lattice of interwoven or intersecting pieces of wood, bamboo or metal that is normally made to support and display climbing plants, especially shrubs.
<tinyfpga>
mithro: that sounds better
<mithro>
tinyfpga: Lots of nice keywords there - lattice, open framework, architectural structure :-P
<mithro>
Make to support and display :-P
<tinyfpga>
mithro: yes, I like it
<mithro>
daveshah: What do you think?
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<mithro>
tinyfpga: So, you going to send me that email?
<mithro>
tinyfpga: I got a box here ready to go :-P
<tinyfpga>
mithro: you mean an artix-7 board for the USB bootloader?
<mithro>
tinyfpga: yes - plus some other goodies for you
<tinyfpga>
mithro: well...I sure do want to have a hand on that board...so I can clone an ECP5 version XD
<tinyfpga>
mithro: but yeah, it would be cool to get the bootloader working on that too
<awygle>
tinyfpga: how big is that bootloader on an ice40? in terms of LUTs?
<tinyfpga>
1400
<awygle>
tinyfpga: is that mostly the USB?
<tinyfpga>
awygle: I think so...I’m working on a plain serial port as well
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<mithro>
tinyfpga: So need an address to post this too :-)