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<bjdooks>
phew, got back ok
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<conchuod>
Took 2 days to get home from Dublin?
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* cousteau
is not sure if that was for me
<bjdooks>
conchuod: nope, two days to get back on irc
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<cousteau>
tbf the Dublin airport was quite crowded...
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<leah2>
anyone know of efforts for a buildroot-based toolchain for bl808?
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<leah2>
anyone have a sipheed m1s dock? i'm having trouble getting into bootloader mode...
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<leah2>
nvm my usb-c cable was defect -.-
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<palmer>
leah2: I think the bl808 should run on upstream toolchains fine. There's some T-Head custom stuff that just got posted, but it should all be performance enhancements (ie, nothing necessary to run). There's also been some Linux code posted
<leah2>
yes, i've setup a buildroot with vendor toolchain and kernel so far and will try to replace stuff
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<palmer>
cool. The patches just got posted and are being reviewed, so if anything blows up it's a good time to say something ;)
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<conchuod>
cousteau: hope you enjoyed your time here :) Was talking to mr dooks though as we were on the same flight from SFO -> Dublin
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<Pokey>
Hello!
<Pokey>
Besides the technical documentation, are there any recommendations for learning in general about RISC-V? I did not take computer science, but I have a somewhat basic understanding of simple microprocessors (for example a Z80) and I wish to apply the small amount I do know to RISC-V, enough to understand how everything fits together, from bootloader, what OpenSBI actually means and where it fits in the system's hierachy to bootstrapping the Linux Kernel to
<Pokey>
get us to a basic system. I'm very much a noob but a dream goal would be to take a RISC-V platfrom and set it up and run Linux with Busybox on it from scratch, and understand how each omponent of doing that fits together
<muurkha>
sounds attainable
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<Pokey>
muurkha: Certainly, just need to get my foot in the door somehow
<leah2>
palmer: disabling CONFIG_VECTOR results in a booting kernel on gcc 11.3
<solrize>
jrtc27, they went on a lot about not having overflow or carry detection because how that would mess up pipelines or something. even though they do it for floating point
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<jrtc27>
yeah because fp is far more complex and you can't really infer the flags from the outputs and inputs without basically redoing the operation
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<solrize>
checking for overflow with signed ints is slower than doing the operation in the first place too... whatever the obstacles were to checking in the hardware, they clearly weren't insurmountable
<jrtc27>
well FP is often multi-cycle and has fewer functional units
<conchuod>
leah2: heh, to be honest I wouldn't trust that vector implementation as far as I could throw it
<leah2>
i'd be more happy to have wifi than vector, but that seems to be totally undocumented x_x
<conchuod>
Does it not even work in their sdk?
<leah2>
not with linux apparently
<leah2>
and the sdk contains some blob
<conchuod>
Perhaps it works with freeRTOS given the product page claims the Linux support is "basic" while freeRTOS is "full"
<leah2>
i'll just wait for some ox64 folks to figure that out :p
<conchuod>
Yah, the SDK doesn't look all that great ha