Viewing profile — lkcl

yes. it is however a test ASIC. therefore it has no on-board boot ROM, and has to have programs uploaded to it over JTAG.

we use nmigen (python-based OO HDL) which through yosys generates verilog as an automatic step. 180nm is still by far and above the world's most heavily-used geometry, because the …

thx phndrenad2. funny i just searched "chisel gpu" and found two: https://github.com/jbush001/ChiselGPU https://github.com/Chlorophytus/broccoli half-float we'd like to do by using…

you can get a pretty good idea right now, the simulator is functional and the unit tests include explanations in english: https://git.libre-soc.org/?p=openpower-isa.git;a=tree;f=sr…

yes, so the "normal" way that GPUs work is: the architecture and the ISA are so staggeringly optimised they're completely incompatible and incapable of running standard (general-pu…

they both have the same connections on the outside (they both have the same "netlist") and you can use the exact same SPICE model (a transistor-level simulation) but usually they'r…

we'll be going as far as is practical and pragmatic with the actual hardware, and still actually meet user-expectations. firmware, bootloader, OS, drivers, BIOS: definitely.

> Also, as your webpage states, you signed TSMC's NDA: FALSE. again. i do not work for LIP6. i do not work for Chips4Makers. i am an independent *LIBRE* Developer. i have NEVVERRRR…

you'll be fascinated to know that we picked a python-based (Object-Orientated) HDL - nmigen - for exactly this reason. we've developed a dynamically SIMD-partitionable-maskable set…

yehyeh, or you bought a winmodem over 15 years ago, someone told you "hey you have to upgrade to windows 10", it downloads over your 56k Dialup winmodem, reboots... and... no drive…

ultimately what we'd like to see is entirely NDA-free PDKs even for 12nm and below, and you can run the VLSI tools and generate the EXACT GDS-II yourself, then yes, de-cap the proc…

thanks :)

no, it's pretty basic, and implicit: it's the (newly-created) "Scalar Fixed-Point Compliancy Subset) - i added a bit to the wikipedia page last month about them https://en.wikipedi…

we used an entirely Libre-licensed VLSI "compiler", which takes HDL as input and spits out fully-completed GDS-II Files. the problem with this particular irate individual is that h…

HDL source code: https://git.libre-soc.org/?p=soc.git;a=summary Coriolis2 source code: http://coriolis.lip6.fr/ Chips4Makers FlexLib Cell Library based on FreePDK45: https://gitlab…

> The POWER/PowerPC ISA is still widely used in safety-critical avionics and in the Mars Rover, which is a radiation-hardened 133mhz 32-bit Power ISA system.

yes, Chips4Makers http://chips4makers.io will help anyone who wants to do a 360nm ASIC, the costs are ridiculously cheap. like... EUR 1750 for 20 MPW samples, something mad, who wo…

interestingly, Libre-SOC and NLnet's funding pre-dates the google-sponsored Skywater 130nm process. also, because it's funded by NLnet we're not dependent on google, don't have to …

"Attests the software version is the version that is valid and shipped by the Oxide Computer Company" this makes "Oxide Computer Company" the primary target and point of vulnerabil…

this is what we're doing in Libre-SOC, and using standard python software engineering practices (writing unit tests at every step of the way) to do it. some of those unit tests are…

unfortunately the data still has to be in a full 32BPP framebuffer (in order for 2D or 3D Window Managers to write to it). all the graphics software will write at that full 32BPP r…

yes. HDCP has "infected" HDMI, eDP, USB-C and so on. this can entirely be avoided with: * TFP410a (RGBTTL to DVI/HDMI) * SN75LVDS83b (RGBTTL to LVDS) * SSD2828 (RGBTTL to MIPI) * v…

Jeff's evaluation of GPLGPU is fascinating: https://jbush001.github.io/2016/07/24/gplgpu-walkthrough.htm... you are absolutely correct in that everything has moved on from "Fixed F…

allo jeff nice to see you're around :) thank you so much for the time you spend guiding me through nyuzi. also for explaining the value of the metric "pixels / clock" as a measure …