jdah/jdh-8

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1382 stars · 96 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

JDH-8 is a fully custom 8-bit minicomputer with its own RISC instruction set, register set, and port-mapped I/O, complete with an assembler and SDL2-based emulator. It also includes a Logisim Evolution schematic documenting the hardware design.

Use cases

• emulate a custom 8-bit computer
• write assembly programs for a simple RISC architecture
• learn how computers work at the hardware level
• run retro games like Pong on a homemade machine
• study CPU design with a full schematic
• build a toy computer from scratch

When to choose

• you want a self-contained educational 8-bit computer with emulator and assembler
• you want to experiment with a simple custom ISA in C
• you want a complete hardware schematic alongside the software toolchain

When to avoid

• you need a production or performant emulator for real hardware
• you want a well-documented, beginner-friendly SDK with extensive docs
• you need modern 16/32/64-bit or ARM emulation

Facets

application · maturity maintenance

interpreter compiler simulation developer-tools hardware simulation education developer-tools programming-languages windows cpp cli 8-bit-computer emulator assembler retro-computing custom-architecture sdl2 logisim linux macos

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