| openpowerbot | [irc] <cesar[m]1> At the moment only stand submissions for FOSDEM are open. Deadline is 8th of December. | 00:51 |
|---|---|---|
| openpowerbot | [irc] <cesar[m]1> Submission link for stands is https://stands.fosdem.org/submission/ | 00:52 |
| openpowerbot | [irc] <cesar[m]1> A spinning cube demo would be great, but programmerjake 's ASCII maze game should suffice... | 00:55 |
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| openpowerbot | [irc] <programmerjake> well, I did write a 3d voxel world demo many years ago that renders using fixed-point arithmetic & ray tracing, it may be suitable after porting to use simpler I/O: https://github.com/programmerjake/test-int-raytrace/blob/master/main.cpp | 06:37 |
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| openpowerbot | [irc] <programmerjake> did some testing, it runs at around 100 fps at 1280x720 with cpu rendering on one thread -- so probably fast enough for microwatt on a fpga with lower resolution and world size | 09:00 |
| openpowerbot | [irc] <programmerjake> added some screenshots: https://github.com/programmerjake/test-int-raytrace | 09:13 |
| klys | hey programmerjake. have you looked at the div bug lately https://bugs.libre-soc.org/show_bug.cgi?id=413 | 09:29 |
| openpowerbot | [irc] <programmerjake> I don't see anything that wasn't there last time I checked...we have a integer division FSM for when you need something small for FPGAs. I also wrote a Goldschmidt Division implementation. basically, my plan is to eventually write a better combined int/fp div/sqrt/rsqrt/mod/rem FSM unit. see bug #1025's top comment | 09:36 |
| openpowerbot | [irc] <programmerjake> create new much smaller FSM pipeline suitable for small cores | 09:36 |
| openpowerbot | [irc] <programmerjake> (the giant pipeline won't fit on most our FPGAs), | 09:36 |
| openpowerbot | [irc] <programmerjake> basically taking all the giant div core and converting each stage | 09:36 |
| openpowerbot | [irc] <programmerjake> to a FSM state. This includes fmod*/fremainder*/frecip*/frsqrt* since | 09:36 |
| openpowerbot | [irc] <programmerjake> those are simple on top of the existing div/sqrt/rsqrt logic. | 09:36 |
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| openpowerbot | [irc] <sadoon[m]1> I have a very stupid integer division algorithm that takes a lot of space on HW but finishes fast | 14:14 |
| openpowerbot | [irc] <sadoon[m]1> Can you tell how desperate I was to implement poly1305 in hardware and do a single calculation for the MAC? | 14:15 |
| openpowerbot | [irc] <sadoon[m]1> It drove me to create a division algorithm xD | 14:16 |
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| openpowerbot | [irc] <sadoon[m]1> That was back in 2018, time flies | 14:17 |
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| octavius | programmerjake, thanks for spotting the missing mcrxrx! | 16:33 |
| octavius | Move to CR from XER, Book I 3.3.19 | 16:34 |
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| openpowerbot | [irc] <programmerjake> is there a meeting in 1hr38min? | 17:22 |
| openpowerbot | [irc] <snowwolflair[m]> I'm not expecting one but Andrey may know better. There is an ISA Working Group meeting tonight at 11pm (London) so I think he is conserving his strength. | 17:25 |
| openpowerbot | [irc] <snowwolflair[m]> Oh and a message from Luke, he cannot get onto the IRC as he has a computer problem over the last two weeks. | 17:25 |
| openpowerbot | [irc] <programmerjake> ok, i'll cancel my alarm then | 17:26 |
| openpowerbot | [irc] <sadoon[m]1> Was about to say might be up in the clouds during meeting time, guess I won't miss it :) | 17:59 |
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| octavius | Sorry chaps for the confusion. I didn't plan a meeting today, and I'm too tired to have one right now | 19:57 |
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| openpowerbot | [irc] <sadoon[m]1> No worries, you've got the ISA WG thing to worry about, good luck! | 20:16 |
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