A tiny hand crafted CPU emulator, C compiler, and Operating System

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  • swieros

    A tiny hand crafted CPU emulator, C compiler, and Operating System

  • There's a very interesting C interpreter/compiler there as well [1]. From the header:

    "c is the c compiler. It takes a single source file and creates an executable file or else executes the compiled code immediately. The compiler does not reach full standards compliance, so some programs need minor adjustment.

    There is no preprocessor, although the #include keyword is allowed supporting a single level of file inclusion."

    [1] https://github.com/rswier/swieros/blob/master/root/bin/c.c

  • MIPS-Sudoku-Solver

    A Sudoku solver, written in MIPS R4K assembly.

  • Ooh, this is super cool!

    I love this sort of miniaturization in virtualization. In college, I did an independent study where I created a stack-based VM in C -- designed the ISA, wrote an assembler, etc. It wasn't very good, but I was able to write simple programs and run them. It felt like magic to me. I wrote a Sudoku solver in MIPS assembly [1] a while before that, and I wanted to port it over but I was missing some features. And now that's gone. #LikeTearsInRain

    I haven't really revisited virtualization. Sad thing about my career is that I don't really get to spend half my time working on indendependent study.[2] All of my side projects tend to just be spurts of inspiration that fizzle out quickly.

    Anyway, I'm gonna dig into this. It looks awesome!

    [1] https://github.com/ndouglas/MIPS-Sudoku-Solver/blob/main/mip...

    [2] "I've been in the private sector. They expect results." – Dr. Raymond Stantz

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    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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  • c4

    C in four functions

  • 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.

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