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circt | SpinalHDL | |
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6 | 8 | |
1,513 | 1,506 | |
3.8% | 2.4% | |
9.9 | 9.8 | |
2 days ago | 7 days ago | |
C++ | Scala | |
GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
circt
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Ask HN: How to get a job as a compiler engineer?
MLIR (https://mlir.llvm.org/) is a quickly growing compiler toolkit which attempts to synthesize the learnings of LLVM and currently powers compilers for programming languages, machine learning and circuit design (https://github.com/llvm/circt). and there are a ton of companies with real employees working on it (including Microsoft) and MLIR is at the core of Chris Lattner’s new company, ModularAI. I’d recommend taking a look at it, there are a large number of ways to get involved and a number of paths from contributor to employee.
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Rapid Open Hardware Development (ROHD) Framework by Intel
Might be good to target the CIRCT infrastructure at some point.
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TSMC eyes Germany for first European chip production plant
Even small optimizations like removing unused pins from internal modules are often times opposed.
Chris Lattner and others are currently working on an "industry" version of firrtl as part of the CIRCT hardware compiler framework: https://github.com/llvm/circt
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Chisel/Firrtl Hardware Compiler Framework
Did you see the work being done on CIRCT? https://github.com/llvm/circt
I remember one of the reasons you did not want to use firrtl was that its compiler is implemented in Scala and thus hard to integrate into other projexts. CIRCT will solve that problem by providing a firrtl compiler implemented in C++. Other languages like Verilog/VHDL and new high level languages for HLS-like designs are also on the todo list.
- Julia Receives DARPA Award to Accelerate Electronics Simulation by 1,000x
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VHDL backend
Relevant: https://github.com/llvm/circt
SpinalHDL
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1800-2023 – IEEE Standard for SystemVerilog
I'd love to see textual preprocessors kinda banned. Or at least done upstream and outside of the language. You can't both be and also have a textual preprocessor defined internally. It doesn't work.
I really like what Zig and C++ are doing with `const`.
https://ikrima.dev/dev-notes/zig/zig-metaprogramming/
Have you looked at Spinal?
https://github.com/SpinalHDL/SpinalHDL
https://spinalhdl.github.io/SpinalDoc-RTD/master/index.html
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Ao486_MiSTer: i486 core for the MiSTer FPGA gaming system
Many companies do just write entire modern SoCs in straight Verilog (maybe with some autogenerated Verilog hacked in there) with no other major organization tools aside from the typical project management stuff. The load-store unit of a modern CPU alone easily exceeds 10k lines of Verilog. It's a similar thing as people who work with kernels—after all, the page table management code in a modern operating system like Linux is absolutely monstrous but still people are able to understand it well enough to be able to make the changes they need and get out.
If you are interested in other languages which hope to make this sort of stuff easier, I'd recommend taking a look at design productivity languages like Chisel and it's associated Chipyard [1], SpinalHDL [2], and Bluespec [3]. Each of these are meant to make defining extremely complex hardware more manageable for humans and there's a lot of interesting work going on right now with each of them.
[1] https://github.com/ucb-bar/chipyard
[2] https://github.com/SpinalHDL/SpinalHDL
[3] https://github.com/B-Lang-org/bsc
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Simple skid buffer implementation
I have just found that SpinalHDL also implemented two halves of the fully registered buffer in Stream.scala.
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Why are there only 3 languages for FPGA development?
Don’t forget SpinalHDL that was forked off of Chisel 2 I believe. These DSLs really leveraged the software features of Scala to help build generalised/modular systems. And are generally a quality of life improvement in the language features available.
- SpinalHDL – A high level hardware description language based on Scala
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Share some github FPGA projects (bonus if they include C++, Python, or other files)
A lot of reuse from other FOSH projects, including Litex, SpinalHDL, betrusted & u/alexforencich verilog-wishbone. Thanks to all of them :-)
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Suggest advance project ideas
You could try to implement a PCIe root complex for FOSS SoCs, connecting to e.g. Wishbone as the main bus. There's already some DDR3 controller (or this one) and USB Host controller out there, and even device-side PCIe, but no FOSS host-side PCIe that I know of. Probably quite a difficult job though, even sticking to the lower-speed PCIe 1.
- Chisel/Firrtl Hardware Compiler Framework
What are some alternatives?
chisel - Chisel: A Modern Hardware Design Language
hdlConvertor - Fast Verilog/VHDL parser preprocessor and code generator for C++/Python based on ANTLR4
amaranth - A modern hardware definition language and toolchain based on Python
torch-mlir - The Torch-MLIR project aims to provide first class support from the PyTorch ecosystem to the MLIR ecosystem.
litex - Build your hardware, easily!
mlir-aie - An MLIR-based toolchain for AMD AI Engine-enabled devices.
chiselverify - A dynamic verification library for Chisel.
cocotb - cocotb, a coroutine based cosimulation library for writing VHDL and Verilog testbenches in Python
litepcie - Small footprint and configurable PCIe core