trebonian/visual6502
Transistor level 6502 Hardware Simulation in Javascript observed · 2026-08-28
Health v2 · maintenance only
32/100
- Activity 0
- Release rhythm 35
- Longevity 100
Flags: no_releases no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 5829
- days_rel: n/a
- days_push: 1641
- n_releases_24m: 0
Adoption not part of the score
1118 stars · 147 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
A browser-based transistor-level simulator of the 6502 (and 6800) microprocessors, originally from visual6502.org. It includes a general-purpose transistor-level simulation engine, a chip layout browser, and extracted data from a 6502 revD die.
Use cases
- simulate a 6502 CPU at the transistor level in the browser
- inspect the physical layout of a 6502 chip
- learn how microprocessors work at the silicon level
- trace signals through the 6502 circuitry
- study vintage CPU internals for retro-computing projects
- run a 6800 simulation for comparison
When to choose
- you need cycle-accurate, transistor-level emulation of the 6502 or 6800
- you want to visualize and explore actual chip layout data
- you're teaching or learning computer architecture with real silicon data
When to avoid
- you need a fast, practical 6502 emulator for running software
- you need support for other CPUs or modern instruction sets
- you require an actively maintained project with a clear license
Facets
application · maturity maintenance
simulation graphics developer-tools hardware simulation education browser emulation retro-computing transistor-level 6502 6800 chip-visualization javascript
1 source
- readme: https://github.com/trebonian/visual6502 · fetched 2026-08-28 · a0bb5062cab4
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| trebonian/visual6502 | main | 32 |
For agents
markdown · JSON · MCP: product_card(name="trebonian/visual6502")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem