zpu
The Zylin ZPU (by zylin)
ZPUFlex
A highly-configurable and compact variant of the ZPU processor core (by robinsonb5)
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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.
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.
zpu
Posts with mentions or reviews of zpu.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-04-13.
ZPUFlex
Posts with mentions or reviews of ZPUFlex.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-04-13.
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Zylin ZPU: The worlds smallest 32 bit CPU with GCC toolchain
For me the most interesting thing about ZPU is that its instructions are only a single byte each, which means that while the CPU is much smaller than most RISC-V implementations, the code density is significantly better than RV32 code. (Compressed RISC-V code can beat ZPU, but adding the compressed instruction set to a RISC-V core increases its size quite a bit.)
I did play with the ZPU quite a bit 8 or 9 years ago, and forked the ZPU Small variant to create ZPUFlex [0]. I borrowed a number of ideas from ZPU when I created my own CPU Project, EightThirtyTwo [1], some years later.
[0] https://github.com/robinsonb5/ZPUFlex
What are some alternatives?
When comparing zpu and ZPUFlex you can also consider the following projects:
minimax - Minimax: a Compressed-First, Microcoded RISC-V CPU
mini-rv32ima - A tiny C header-only risc-v emulator.
EightThirtyTwo - An experimental CPU core with 8-bit instruction words and 32-bit registers
pinwheel - A tiny RISC-V processor for hard-real-time FPGA-based applications.
zpugcc