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ucb-bar

10 indexed repositories · View on GitHub

chipyard
An Agile RISC-V SoC Design Framework with in-order cores, out-of-order cores, accelerators, and more

Scala · 2390 stars
berkeley-hardfloat

Scala · 393 stars
hammer
Hammer: Highly Agile Masks Made Effortlessly from RTL

Python · 326 stars
saturn-vectors
Chisel RISC-V Vector 1.0 Implementation

Assembly · 158 stars
autocomp
Autocomp: Optimize any AI kernel, anywhere.

Python · 148 stars
ucie
An open-source UCIe implementation

Scala · 128 stars
chia
An open framework for designing and deploying custom AI-driven HW/SW co-design flows fast

Python · 93 stars
testchipip

Scala · 91 stars
libgloss-htif
A libgloss replacement for RISC-V that supports HTIF

C · 47 stars
pyuartsi
A standalone implementation of the Tethered Serial Interface (TSI) in Python.

Python · 6 stars

Beginner friendly Everything

Open All

No chia up --add when using Tailscale Open

enhancement

ucb-bar/chia#73 · 1 comment · 1 assignee · Opened Sep 11, 2026
Tailnet-relayed worker never receives a task lease from the GCS (registration works, dispatch doesn't) Open

ucb-bar/chia#72 · 7 comments · 1 assignee · Opened Sep 9, 2026
Training tests using simple Verilog-AMS models Open

ucb-bar/ucie#198 · 2 assignees · Opened Sep 4, 2026
Full loopback tests with uciedigital + PHY Open

ucb-bar/ucie#197 · 1 assignee · Opened Sep 4, 2026
Appetite for an integer-only vector configuration (Zve64x)? Open

Difficulty 5/5 Over a week Newbie friendliness 38/100

ucb-bar/saturn-vectors#99 · 3 comments · Opened Sep 2, 2026
build-setup.sh pins sysroot_linux-64 to the host glibc without checking it exists Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 55/100

ucb-bar/chipyard#2373 · 2 comments · Opened Aug 26, 2026
Roadmap: first-class Azure support (azure_nodes)? Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 40/100

ucb-bar/chia#58 · 1 comment · Opened Aug 25, 2026
Roadmap: Kubernetes / KubeRay support for CHIA clusters? Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

ucb-bar/chia#57 · 2 comments · Opened Aug 25, 2026
vsmul saturation bounds are 32-bit at SEW=64 Open

Difficulty 3/5 1-2 days Newbie friendliness 78/100

ucb-bar/saturn-vectors#95 · 1 comment · Opened Aug 25, 2026
HAMMER not supporting the latest ASAP7 version (asap7sc7p5t_28) Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 30/100

ucb-bar/hammer#905 · Opened Jul 26, 2026
[FLAGS] vfwadd.vv does not raise Invalid Flag when input is signaling NaN Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ucb-bar/saturn-vectors#92 · Opened Jul 26, 2026
Verilator simulator warning text incorrect Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 52/100

ucb-bar/chipyard#2354 · 2 comments · Opened Jun 26, 2026
Autocomp Claude Code skill Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

ucb-bar/autocomp#54 · Opened Jun 14, 2026
Multiple reads and writes in a single command Open

Difficulty 3/5 1-2 days Newbie friendliness 65/100

ucb-bar/pyuartsi#10 · Opened May 13, 2026
TPU backend defaults are hardcoded and don't respect environment vars Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

ucb-bar/autocomp#49 · 3 comments · Opened Apr 29, 2026
Cannot get verbose commit log output from Dromajo+BOOM cosimulation Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ucb-bar/chipyard#2332 · Opened Apr 24, 2026
Edit mode vs direct code generation Open

help wanted research

Difficulty 5/5 Over a week Newbie friendliness 35/100

ucb-bar/autocomp#45 · Opened Apr 13, 2026
Find out which models benefit more/less from plan-then-implement prompting Open

help wanted research

Difficulty 4/5 3-5 days Newbie friendliness 48/100

ucb-bar/autocomp#40 · Opened Apr 9, 2026
Comparison to SkyDiscover or other evolutionary search frameworks Open

help wanted research

Difficulty 5/5 Over a week Newbie friendliness 35/100

ucb-bar/autocomp#39 · Opened Apr 7, 2026
Autocomp as a model benchmark Open

help wanted research

Difficulty 5/5 Over a week Newbie friendliness 38/100

ucb-bar/autocomp#38 · 1 comment · Opened Apr 7, 2026
Beam width / search parameter study Open

help wanted research

ucb-bar/autocomp#37 · 5 comments · 1 assignee · Opened Apr 7, 2026
Add Apple Metal/MLX backend Open

enhancement help wanted high priority new backend

ucb-bar/autocomp#36 · 1 comment · 1 assignee · Opened Apr 7, 2026
Comparison to Claude Code Open

help wanted high priority research

ucb-bar/autocomp#35 · 6 comments · 1 assignee · Opened Apr 7, 2026
Optimize interesting kernels on modern GPUs Open

help wanted

Difficulty 5/5 Over a week Newbie friendliness 25/100

ucb-bar/autocomp#33 · Opened Mar 31, 2026
Transition Gemmini and CUDA agents to built agent format Open

help wanted modernization

Difficulty 4/5 3-5 days Newbie friendliness 52/100

ucb-bar/autocomp#31 · Opened Mar 30, 2026
VS Code Extension Open

enhancement

ucb-bar/autocomp#23 · 2 comments · 1 assignee · Opened Mar 18, 2026
How to inject some Tcl code between synthesis and implementation stages for Vivado Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ucb-bar/hammer#903 · Opened Mar 11, 2026
Handling multiple, scoped, optional constraint files Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

ucb-bar/hammer#902 · Opened Mar 9, 2026
CHIPYARD - LargeBOOMV3 - LINUX image Boot - Verilator Open

enhancement

ucb-bar/chipyard#2328 · 1 comment · 2 assignees · Opened Mar 6, 2026
Documentation still references the firrtl tool which is depricated Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ucb-bar/chipyard#2324 · Opened Feb 20, 2026
Incorrect CSR State Override Logic Causes Spike State Rollback on RMW Instructions Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

ucb-bar/testchipip#268 · Opened Jan 9, 2026
Incorrect CSR State Override Logic Causes Spike State Rollback on RMW Instructions Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ucb-bar/chipyard#2320 · Opened Jan 9, 2026
[Sky130 + OpenROAD Tutorial make buildfile error] Open

bug

ucb-bar/chipyard#2311 · 1 comment · 1 assignee · Opened Nov 2, 2025
Xcelium reported multiple "Unknown option *** " Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ucb-bar/hammer#898 · Opened Oct 29, 2025
TSI/FESVR memory loading failure - PutPartial Assertaion failed Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ucb-bar/chipyard#2308 · 1 comment · Opened Oct 23, 2025
Problem of IFC modules Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ucb-bar/saturn-vectors#79 · 1 comment · Opened Oct 20, 2025
[Sky130 + OpenROAD Tutorial error ], Open

bug

Difficulty 5/5 Over a week Newbie friendliness 20/100

ucb-bar/chipyard#2306 · Opened Oct 19, 2025
bootrom string doesn't allow to set file Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ucb-bar/testchipip#261 · Opened Oct 15, 2025
TestchipIP's bootrom.S documentation and code mismatch - _hang never execute due to linker placement. Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ucb-bar/chipyard#2305 · Opened Oct 13, 2025
Building riscv-pk fails to get environment Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 45/100

ucb-bar/chipyard#2300 · Opened Sep 18, 2025
Is this project actively maintained? Open

Difficulty 5/5 Over a week Newbie friendliness 10/100

ucb-bar/hammer#895 · 5 comments · Opened Sep 13, 2025
Adding action for Automatic Test Pattern Gneration (ATPG) Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

ucb-bar/hammer#894 · Opened Sep 9, 2025
Read-Write Conflict in Dual-Port BTB SRAM Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 35/100

ucb-bar/chipyard#2277 · Opened Aug 20, 2025
Memory Access Deadlock Induced by Prefetcher in D-Cache Open

bug

Difficulty 5/5 Over a week Newbie friendliness 25/100

ucb-bar/chipyard#2276 · 1 comment · Opened Aug 20, 2025
Indexed Load instruction function error. Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ucb-bar/saturn-vectors#76 · Opened Aug 19, 2025
Help to LearnSaturn Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

ucb-bar/saturn-vectors#75 · Opened Aug 13, 2025
Potential Execution Stall Due to Incorrect vps Deactivation in Backend.scala / SpecialSequencer.scala Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

ucb-bar/saturn-vectors#74 · 6 comments · Opened Aug 11, 2025
The system starts up particularly slowly,Copying data from the SD card is particularly slow. Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ucb-bar/chipyard#2274 · Opened Aug 7, 2025
Compatibility with RocketChip Repository Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

ucb-bar/saturn-vectors#73 · 4 comments · Opened Jul 22, 2025
Out of Memory Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

ucb-bar/saturn-vectors#72 · 1 comment · Opened Jul 21, 2025

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