jdh

296K subscribers on YouTube

Shorts, livestreams, trailers and promos are never listed. Unless a curator approved this channel in full, only individually picked videos appear.

1.85M views

Builds a tiny bare-metal x86 operating system whose only program is Tetris: bootloader, interrupts, VGA graphics and timers.

2.05M views

Builds a 1995-style software-rendered FPS in C: raycasting/portal-style rendering, sectors and a framebuffer, without an engine.

255K views

A 52-minute code walkthrough of his custom C game engine: entity system, rendering, asset pipeline and tooling.

783K views

Designs an 8-bit CPU (instruction set, ALU, microcode) in a simulator and programs Pong on it.

122K views

A 50-minute companion walkthrough of how the hand-built computer works: architecture, memory map, microcode and assembler.

1.33M views

Takes the 8-bit computer design onto breadboards and real chips, debugging timing and wiring issues.

1.67M views

Builds a simple video card from logic chips: generating VGA timing, a framebuffer, and connecting it to the homemade CPU.

A 7-minute video from jdh: “Making my web game engine”.

271K views

Implements portal-based visibility and rendering for a Doom-style engine.

A 16-minute video from jdh: “Remaking MINECRAFT 2D (Minicraft)”.

314K views

Explains the Wave Function Collapse algorithm and how he adapted it to generate game levels.

324K views

Adds compile-time reflection to C++ via code generation to serialise game data.