DevOps

MLIR-to-RTL Simulation Flow: From linalg.matmul to a Systolic Array

Introduction Hi! I'd like to share the MVP of my hw-mlir-lab project, where I use MLIR to lower matrix multiplication ( matmul ) to a systolic array…

What Is an Instruction?

Did you ever think about how your CPU executes the code that you wrote? The compiler takes your code and turns it into an executable binary. This bi…

GPU Offload in Rust: Portable, Safe, and Fast

High-performance GPU programming has traditionally forced a compromise between execution efficiency and memory safety. While Rust guarantees compile…

How Compiler Explorer Runs on AWS in 2026

Galfus Script MVP is complete

Galfus Script has reached its first MVP milestone. Galfus is an experimental programming language written in Rust, designed around a typed VM-first…

V.E.L.O.C.I.T.Y.-OS: The Self-Healing Kernel & LLM Terminal Handover (Part 12)

I had arrived at the final frontier. My bare-metal kernel was booting in QEMU, driving NVMe block storage, running multi-agent swarms, and rendering…

V.E.L.O.C.I.T.Y.-OS: Swarms, Headless Streaming & RCU Hot-Patching (Part 11)

With the Synaptic Canvas GUI rendering, my bare-metal kernel was fully functional. However, as I expanded the OS features, I ran into multitasking b…

V.E.L.O.C.I.T.Y.-OS: The Synaptic Canvas GUI & V-NCE GPU (Part 10)

After writing drivers for NVMe storage, my bare-metal kernel could load files and run JIT code. However, I was still typing commands into a text-onl…

V.E.L.O.C.I.T.Y.-OS: Writing Bare-Metal Drivers – PCI, NVMe & FAT32 (Part 9)

Entering Ring 0 gave me complete control over CPU execution, but I faced a major challenge: I had no drivers . I couldn't read a single byte from a…

V.E.L.O.C.I.T.Y.-OS: Reclaiming Ring 0 – UEFI Bootloader & GDT/IDT (Part 8)

Up until this point, I had built an incredible JIT compiler, but it was still running on top of Windows. If I wanted true zero-allocation, microseco…

V.E.L.O.C.I.T.Y.-OS: Classic Compiler Optimization Passes in JIT (Part 7)

Now that the JIT compiler could output raw x86-64 machine instructions, the next step was to optimize the AST tree before emitting code bytes. If th…

V.E.L.O.C.I.T.Y.-OS: The JIT Compiler Core – From AST to Native Closures (Part 4)

With the standalone IDE running, I had a sandboxed environment to write and execute Neural Document Architecture (NDA) programs. However, executing…

V.E.L.O.C.I.T.Y.-OS: Ditching the Web Stack & The 30MB Standalone IDE (Part 3)

With the Neural Document Architecture (NDA) binary format defined, the next logical bottleneck was the environment it ran in. I was building this as…

Meet Rux

There's no shortage of new programming languages these days, but every so often one comes along that's worth paying attention to early. Rux is a fas…

The Compiler: Heart and Tools of All Software

The Compiler: Heart and Tools of All Software Every program you have ever run — your operating system, your browser, the app that woke you up this m…

LLVM #5 — Mutable Variables

So far, Kaleidoscope has been a functional language with immutable variables and no reassignment. But to write anything resembling real code (loops…

Flux: The New Programming Language Built for Tomorrow’s CPUs

As we enter an era of massive hardware innovation, the design of programming languages must evolve to keep pace with modern advancements. Flux is mo…

LLVM #3 — Control Flow

After all we've done (building a lexer, parser, code-generator, optimiser, and the JIT), we give Kaleidoscope decision-making abilities. What I buil…