在网上冲浪的时候刷到一篇 知乎专栏, 觉得很好玩, 但是手上又没有芯片, 只有一块不算贵也不算便宜的 FPGA (TangNano 9K). 于是选择复刻了这个 1 位计算机.

While I was surfing on the Internet, I found a Zhihu Zhuanlan (Chinese), which I though was interesting. However, since I don’t have chip by my side, only a normal FPGA board (TangNano 9K). I thought maybe I could rebuilt this one bit computer.

最原始的仓库 (1bit CPU) 在 naoto64/1bit-CPU, 这个仓库是其的 FPGA 的简单实现.

The original repo (1bit CPU) is at naoto64/1bit-CPU, this repo is its FPGA implementation.

注: 你需要的环境和开发板如下:

Note: what you need is

• apicula (pip install apicula)
• yosys, cmake, eigen, openFPGALoader (brew install yosys cmake eigen openfpgaloader)
• nextpnr (See Github for how to build it from source)
• TangNano 9K
• 更多请参考: OS Toolchain Manual Installation (more information)
• 或者 Turing Complete and Verilog (Chinese) (这是我入门数电的游戏, it’s the game that brought me into digital circuits)

注: 但是现在有点忙, 所以没空写更加细致的文档, 并且还没有做各个单元的测试, 可能还是有 bug. 我将会在之后进行更新 (可能吧).

Note: I was kinda buzy, that’s why I may have no time to write a good documenation, so does the unit test for which there may be bug hidding somewhere. May update someday (hopefully).