This project emulates Hack computer from nand2tetris course. It is still under light development (light means that I might add/fix/polish things from time to time, but not actively).
https://hithroc.github.io/hack-emulator/
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Built-in assembler (although it is very crude and doesn't really have error reporting as of yet)
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ROM view, including binary machine code as well as the coresponding instructions. Current instruction (program counter) is highlighted.
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RAM view
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Full ALU implementation, which includes undocumented instructions, unlike the official CPU emulator.
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Adjustable clock speed (although I would not recommend to go above ~10MHz)
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Full support for keyboard input and display output.
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All in your browser on any device! No Java required!
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Breakpoints
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Ability to modify values in RAM
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Running official test files
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Ahead of time compilation as well as other optimizations
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Perhaps some extensions to Hack, like
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Memory banks
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Colored display
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Periferals like storage?
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6/N-key rollover support
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Light/dark theme support?
To build the project you need Node 12.x. Then you can just run:
npm install
npm run-stript build
This should create app.js file in ./dist/. You can open ./dist/index.html
in your browser.
Ha, like anyone ever will!
This project was mostly written in about a week to get some practice with TypeScript and React (given that I've not used either before), so there might be some rough edges or non-idiomatic code/project structure. Reviews are welcome!