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rswier/swieros

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

13 mentions on Hacker News by 10 people: 3 stories, 10 comments · first 2014-11-04 · latest 2025-03-22

Mentions per year 13 mentions · busiest year 2014 (4)
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  1. https://github.com/rswier/swieros is a cool project that uses it's own VM (with a C compiler included). I was surprised by all the capabilities it has.
    comment by PhilipRoman · 2025-03-22 · in The little book about OS development
  2. …seems much more extensive and even includes #define as the other comment mentioned and va_args. [1] https://github.com/rswier/swieros/blob/master/root/bin/c.c [2] https://github.com/rswier/c4/blob/master/c4.c [3]…
    comment by seansh · 2024-01-06 · in A tiny hand crafted CPU emulator, C compiler, and Operating System
  3. …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
    comment by seansh · 2024-01-06 · in A tiny hand crafted CPU emulator, C compiler, and Operating System
  4. ▲ 186
    A tiny hand crafted CPU emulator, C compiler, and Operating System
    story by seansh · 2024-01-06 · 10 comments
  5. …(like GCC or JIT compilers, for example). But there's a more realistic compiler inside swieros: https://github.com/rswier/swieros/blob/master/root/bin/c.c that emits actual "binaries" for the emulated toy CPU. It's hard to tell what…
    comment by tom_mellior · 2019-10-10 · in Small C Compilers
  6. …very readable and simple code. I recommend trying out swieros as well “a tiny Unix like kernel”: https://github.com/rswier/swieros
    comment by codezero · 2019-10-10 · in Small C Compilers
  7. ▲ 2
    Swieros: A tiny hand crafted CPU emulator, C compiler, and Operating System
    story by peter_d_sherman · 2018-09-10 · 0 comments
  8. …seems to fill a niche between c4 and my other more full featured compiler/os swieros. Very cool! https://github.com/rswier/swieros/blob/master/00README.txt
    comment by rswier · 2017-03-03 · in Selfie: tiny self-compiling C compiler, MIPS emulator and MIPS hypervisor
  9. …in looking at a compiler and OS mostly from scratch based on C check this out. It's pretty amazing. https://github.com/rswier/swieros It comes from the author of the c4 compiler. (Interpreter?)
    comment by codezero · 2015-07-07 · in Project Oberon
  10. The guy who did the C4 compiler also has a more fully featured one that does support structures: https://github.com/rswier/swieros/blob/master/root/bin/c.c It's part of an OS he's building based on xv6
    comment by lamacase · 2014-11-17 · in Xv6 – A Simple Unix-Like Teaching Operating System
  11. …or its derivation, how much is borrowed and how much original, and generally why it exists. [0] https://github.com/rswier/swieros/blob/master/00README.txt
    comment by fernly · 2014-11-05 · in Swieros: A tiny hand crafted CPU emulator, C compiler, and Operating System
  12. ▲ 14
    Swieros: A tiny hand crafted CPU emulator, C compiler, and Operating System
    story by adamnemecek · 2014-11-04 · 1 comment
  13. …other C compiler in his Github account, which does have better variable names and some comments. https://github.com/rswier/swieros/blob/master/root/bin/c.c
    comment by mappu · 2014-11-04 · in C4 – C in 4 functions