bit-serial
scamp-cpu
bit-serial | scamp-cpu | |
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1 | 12 | |
111 | 283 | |
- | - | |
6.7 | 8.4 | |
3 months ago | 5 months ago | |
VHDL | Slash | |
MIT License | The Unlicense |
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bit-serial
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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.
scamp-cpu
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500 Lines or Less – Writing a useful program in fewer than 500 line code – AOSA
Re the text editor, when I was writing an editor for my homemade CPU I used the one from this tutorial: https://viewsourcecode.org/snaptoken/kilo/index.html - it is 1000 lines of C.
I have diverged a bit from the tutorial because I didn't want syntax highlighting and I really wanted vi-style keybindings. Mine is at https://github.com/jes/scamp-cpu/blob/master/sys/kilo.sl (in my made-up programming language).
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-🎄- 2021 Day 8 Solutions -🎄-
I made the computer myself: https://github.com/jes/scamp-cpu/
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🎄 AoC 2021 🎄 [Adventure Time!]
PROJECT LINK: Solutions GitHub - CPU GitHub - YouTube
- Scamp CPU: A homebrew 16-bit CPU with a homebrew Unix-like-ish operating system
- A homebrew 16-bit CPU with a homebrew Unix-like-ish operating system
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Designing a CPU for Advent of Code
In case you're interested, there's more about this project in the github repo: https://github.com/jes/scamp-cpu/ and on my blog: https://incoherency.co.uk/blog/tags/cpu.html
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Scamp – a homebrew 16-bit CPU
This is really cool and unique. I poked around a bit, and the kernel is vaguely POSIX like, but written in a homegrown language with a compiler written in Perl[1].
[1] https://github.com/jes/scamp-cpu/blob/f260f52d950be90c2279f5...
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My homebrew CPU is alive!
Actually, I just found this! That's pretty much what I was looking for. That's what I would have linked if it had been me posting. :) This looks like a really interesting computer project!
What are some alternatives?
aoc - Advent of Code solutions
selfie - An educational software system of a tiny self-compiling C compiler, a tiny self-executing RISC-V emulator, and a tiny self-hosting RISC-V hypervisor.
coollang-2020-fs - Compiler of a small Scala subset
advent-of-code - My Advent of Code solutions through the years - mostly JS
aoc - 🎄 advent of code 414⭐
advent-of-code - Advent of Code in python3
AoC - my personal repo for the advent of code yearly challenge
adventofcode - My AdventOfCode implementations
adventofcode - Advent of code solutions
adventofcode - Solutions for problems from AdventOfCode.com
Advent-of-Code - Advent of Code
aoc - Advent of code