c4
fpga_craft
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| c4 | fpga_craft | |
|---|---|---|
| 11 | 7 | |
| 9,212 | 193 | |
| - | - | |
| 0.0 | 4.4 | |
| 4 months ago | over 2 years ago | |
| C | C | |
| GNU General Public License v3.0 only | Apache License 2.0 |
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c4
- A tiny hand crafted CPU emulator, C compiler, and Operating System
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Running the "Reflections on Trusting Trust" Compiler
The C4 compiler [https://github.com/rswier/c4] is a self-hosting compiler for a subset of the C programming language that produces executable x86 code. You can understand and audit this code in a couple of hours (its 528 lines).
It could be an interesting exercise to bootstrap up from something like this to a working linux environment based solely on source code compilation : no binary inputs. Of course a full linux environment has way too much source code for one person or team to audit, but at least it rules out RoTT style binary compiler contamination.
- C4: C in Four Functions
- AoikC4x86Study: Line-by-line comments to c4.c and c4x86.c files
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Flattening ASTs (and Other Compiler Data Structures)
I was surprised to see nodes still have two pointers ("references") given that you now know that that the first pointer will always point exactly to the next node. I've see https://github.com/rswier/c4 use that. Granted it doesn't make for the most readable code, but it's even smaller and faster.
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vermin_vm: Virtual Machine(~400 lines) + Assembler(~800 lines) written in C
VMs with simple instruction sets is a fun topic. Some years ago I got inspired by the amazing rswier/c4 compiler by Robert Swierczek and explored the smallest instruction set I could get away with to create VMs that could run non-trivial workloads.
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Hand-optimizing the TCC code generator
C4 comes to mind (C in 4 functions), https://github.com/rswier/c4.
have you considered adding a backend for LLVM? perhaps a bit heavyweight, but it could be a good way to get C/C++, fortran, rust, etc. if that's something you'd like!
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Some people of the Linux Community in a nutshell
I use Alpine Linux (no GNU bloat btw), dwm (Sucks less!), and I edit all my C (no bloat language) through busybox ed and compile my programs with (c4)[https://github.com/rswier/c4]
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which programming language was used to make c++ compiler?
Keep in mind you can create a "usable" C compiler by yourself, and is doable in surprisingly low amount of code. Try https://github.com/rswier/c4/blob/master/c4.c
- What is the simplest self-compiling subset of C?
fpga_craft
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Custom ray tracing hardware
That reminds me of this: https://github.com/nickmqb/fpga_craft
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Hand-optimizing the TCC code generator
Thanks! I feel like I actually understand that verilog code! Do you ever see the "rendered" state on the FPGA, or is that all abstracted away?
Would you recommend one of those FPGAs over another? I know iCE40 from this amazing project (https://github.com/nickmqb/fpga_craft) so maybe I'll just get that!
- fpga_craft: a Minecraft clone for the iCE40 UP5K
- FPGA Advent Calendar
- FPGA craft - A voxel game/Minecraft clone for the iCE40 UP5K FPGA (for the iCEBreaker board).
- fpga_craft: Minecraft clone for the iCE40 UP5K FPGA
What are some alternatives?
stage0 - A set of minimal dependency bootstrap binaries
MinecraftHDL - A Verilog synthesis flow for Minecraft redstone circuits
bcompiler - Mirror of http://www.rano.org/bcompiler.tar.gz, with a bootstrap script
projf-explore - Project F brings FPGAs to life with exciting open-source designs you can build on.
qbe-rs - QBE IR in natural Rust data structures
cproc - C11 compiler (mirror)
libcperciva - BSD-licensed C99/POSIX library code shared between tarsnap, scrypt, kivaloo, spiped, and bsdiff.
packedjson - packedjson is an alternative Nim implementation for JSON. The JSON is essentially kept as a single string in order to save memory over a more traditional tree representation.
jsonpak - Packed ASTs for compact and efficient JSON representation, with JSON Pointer, JSON Patch support.
neat - The Neat Language compiler. Early beta?