Saturday, 2018-03-24

*** tpb has joined #yosys00:00
*** jwhitmore has quit IRC00:00
*** emeb has quit IRC01:08
*** m_w has quit IRC01:09
*** m_w has joined #yosys01:12
*** cemerick has quit IRC01:51
*** jwhitmore has joined #yosys02:07
*** jwhitmore has quit IRC02:35
*** cemerick has joined #yosys03:00
*** dys has quit IRC03:08
*** digshadow has quit IRC03:38
*** pie_ has quit IRC03:48
*** pie_ has joined #yosys03:51
*** digshadow has joined #yosys04:00
*** jwhitmore has joined #yosys04:12
*** proteus-guy has joined #yosys04:31
*** pie_ has quit IRC04:42
*** jwhitmore has quit IRC04:50
*** proteus-guy has quit IRC04:55
*** proteus-guy has joined #yosys05:23
*** proteus-guy has quit IRC05:30
*** proteus-guy has joined #yosys05:43
*** AlexDaniel has quit IRC05:50
*** proteus-guy has quit IRC06:01
*** proteus-guy has joined #yosys06:08
*** proteus-guy has quit IRC06:30
*** proteus-guy has joined #yosys06:31
*** indy has left #yosys06:35
*** _whitelogger has quit IRC06:48
*** _whitelogger has joined #yosys06:50
*** promach has quit IRC07:23
*** promach has joined #yosys07:25
*** proteus-guy has quit IRC08:12
*** proteus-guy has joined #yosys08:12
*** cemerick has quit IRC08:21
*** leviathan has joined #yosys08:45
*** proteus-guy has quit IRC09:24
*** proteus-guy has joined #yosys09:29
*** proteusguy has quit IRC09:32
*** xrexeon has joined #yosys10:02
*** jwhitmore has joined #yosys10:24
*** GuzTech has joined #yosys10:27
*** dys has joined #yosys10:35
*** digshadow has quit IRC10:35
*** digshadow has joined #yosys10:36
*** eduardo__ has joined #yosys11:07
*** eduardo_ has quit IRC11:11
*** mjo-uk has quit IRC11:28
*** indy has joined #yosys11:48
*** shapr has quit IRC11:56
*** kmehall has quit IRC11:57
*** shapr has joined #yosys11:58
*** shapr is now known as Guest6569811:58
*** kmehall has joined #yosys11:58
*** jwhitmore has quit IRC11:59
*** maartenBE has quit IRC12:07
*** maartenBE has joined #yosys12:08
*** cemerick has joined #yosys12:18
*** proteusguy has joined #yosys12:32
*** proteusguy has quit IRC12:40
*** cemerick has quit IRC12:42
*** jophish_ has joined #yosys12:43
*** jophish_ is now known as Guest7389412:43
*** proteusguy has joined #yosys12:54
*** GuzTech has quit IRC13:29
*** seldridge has joined #yosys13:31
*** Guest65698 is now known as shapr13:36
*** shapr has joined #yosys13:36
*** AlexDaniel has joined #yosys13:54
*** SpaceCoaster has quit IRC13:58
*** andi- has quit IRC14:22
*** xrexeon has joined #yosys14:22
*** andi- has joined #yosys14:31
*** SpaceCoaster has joined #yosys14:35
*** Guest73894 has quit IRC14:41
*** SpaceCoaster has quit IRC14:45
*** xrexeon has quit IRC14:50
*** dys has quit IRC15:10
*** dys has joined #yosys15:47
daveshahI wonder if companies will change their mind once there is a full, practical bitstream flow for 7-series available....15:52
*** SpaceCoaster has joined #yosys15:53
awygle what happened to those guys...?15:57
tpbTitle: GitHub - djn3m0/debit: Reverse-engineering tools for FPGA bitstreams, Altera and Xilinx (at
daveshahIt seems to still exist15:58
sorear +/unfavorable attention15:59
sorearhaven't found details on what "unfavorable attention" constitutes16:00
daveshahThe usual cease and desist notice, I would imagine16:00
daveshahI find it hard to imagine what Altera would be able to claim though16:01
sorearprobably.  I can't find any case files online for Altera and Jean-Baptiste Note or Éric Rannaud16:01
daveshahI highly doubt it ever got to the point of an actual case, that would certainly be heavily publicised16:02
daveshahCould have just been Altera threatening to remove the uni's freebies16:02
sorearoh that's very likely16:02
daveshahAltera don't mess about wrt bitstreams though -
awygleDepending on how the RE is done it could violate the terms of service16:11
*** seldridge has quit IRC16:23
philtorYeah, I thought Xilinx was similarly agressive, yet we're able to generate some Xilinx7 bitstreams with yosys - what happened there?16:25
awygleSmall point of order, Yosys can synthesize to the Xilinx primitives but not create a bitstream. That's project x-ray (have they actually generated any bitstreams yet?)16:29
philtoroh, I see.16:30
philtorSo you still need Vivado to go from those primitives (blif file?) to bitstream16:30
daveshahI think bitstream generation is working. It's place and route that's missing - but is certainly being worked on16:31
philtorhow do you get to bitstream without p&r?16:31
daveshahA language has been developed called "FPGA assembly"16:32
philtorlink? Google not returning anything relevant for "fpga assembly"16:35
tpbTitle: FASM and xc7patch proof of concept using partial reconfig flow by kc8apf · Pull Request #55 · SymbiFlow/prjxray · GitHub (at
*** proteusguy has quit IRC16:36
daveshahLooks like this:
tpbTitle: prjxray/roi_noninv.fasm at b6f754dae7f4f9a2f073166c66f645d68b92ce3d · kc8apf/prjxray · GitHub (at
*** proteusguy has joined #yosys16:38
*** dys has quit IRC17:03
*** promach has quit IRC17:04
*** seldridge has joined #yosys17:11
kc8apfphiltor: we've only documented CLBs and interconnect so far. We patch an existing bitstream that sets up IOBs, etc.17:13
*** dys has joined #yosys17:16
*** cemerick has joined #yosys17:42
*** SpaceCoaster has quit IRC17:51
*** SpaceCoaster has joined #yosys18:25
*** newton_01 has joined #yosys18:47
*** newton_01 has quit IRC18:50
*** pie_ has joined #yosys19:46
*** mjo-uk_ has joined #yosys20:02
*** seldridge has quit IRC20:03
*** seldridge has joined #yosys20:03
*** seldridge has quit IRC20:08
*** seldridge has joined #yosys20:08
*** Max-P has quit IRC20:32
*** seldridge has quit IRC20:34
*** leviathan has quit IRC21:46
*** _whitelogger has quit IRC21:54
*** Max-P has joined #yosys21:55
*** _whitelogger has joined #yosys21:56
*** proteusguy has quit IRC22:02
*** fouric has quit IRC22:03
ZipCPUphiltor: Thank you for your encouraging comments.22:08
*** SpaceCoaster has quit IRC22:42
*** SpaceCoaster has joined #yosys23:04
*** Max-P has quit IRC23:17
*** Max-P has joined #yosys23:18

Generated by 2.13.1 by Marius Gedminas - find it at!