bit-serial
A bit-serial CPU written in VHDL, with a simulator written in C. (by howerj)
mc1
A computer (FPGA SoC) based on the MRISC32-A1 CPU (by mrisc32)
| bit-serial | mc1 | |
|---|---|---|
| 1 | 2 | |
| 111 | 49 | |
| - | - | |
| 6.7 | 0.0 | |
| 3 months ago | 9 months ago | |
| VHDL | VHDL | |
| MIT License | zlib License |
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.
bit-serial
Posts with mentions or reviews of bit-serial.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2024-04-03.
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The ancient world before computers had stacks or heaps
I wrote a Forth interpreter for a SUBLEQ machine (https://github.com/howerj/subleq), and for a bit-serial machine (https://github.com/howerj/bit-serial), both of which do not have a function call stack which is a requirement of Forth. SUBLEQ also does not allow indirect loading and stores as well and requires self-modifying code to do anything non-trivial. The approach I took for both machines was to build a virtual machine that could do those things, along with cooperative multithreading. The heap, if required, is written in Forth, along with a floating point word-set (various MCUs not having instructions for floating point numbers is still fairly common, and can be implemented as calls to software functions that implement them instead).
I would imagine that other compilers took a similar approach which wasn't mentioned.
mc1
Posts with mentions or reviews of mc1.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-05-29.
-
Has anyone created a graphics card/engine?
...and more info about the full implementation: https://github.com/mrisc32/mc1
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MC1 FPGA computer build instructions
See: https://github.com/mrisc32/mc1
What are some alternatives?
When comparing bit-serial and mc1 you can also consider the following projects:
mrisc32-gnu-toolchain - A top level repository for building the MRISC32 GNU toolchain
neo430 - :computer: A damn small msp430-compatible customizable soft-core microcontroller-like processor system written in platform-independent VHDL.