100thCoin/AccuracyCoin
A large collection of NES accuracy tests on a single NROM cartridge. observed · 2026-09-03
Health v2 · maintenance only
64/100
- Activity 100
- Release rhythm 35
- Longevity 34
Flags: no_releases
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: 481
- days_rel: n/a
- days_push: 1
- n_releases_24m: 0
Adoption not part of the score
1037 stars · 22 forks observed · 2026-09-03
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
AccuracyCoin is a NES test ROM that packs 141 hardware accuracy tests onto a single NROM cartridge, targeting an NTSC console with an RP2A03G CPU and RP2C02G PPU. Each test prints PASS or FAIL on screen with error codes on failure, plus a debug menu and a summary results table for evaluating emulator and flash-cart fidelity against real hardware.
Use cases
- test how accurate my NES emulator is against real hardware
- verify CPU and PPU emulation correctness with conformance tests
- check emulator handling of unofficial 6502 instructions
- compare NES emulators by running a standardized accuracy test suite
- debug emulator failures using on-screen error codes and RAM values
- validate a flash cartridge or Everdrive setup on a real NTSC console
When to choose
- You are developing a NES emulator and need a comprehensive accuracy/conformance test suite
- You want to measure how closely an emulator matches real NTSC NES hardware behavior
- You need per-test PASS/FAIL results with error codes and debug output for emulator debugging
When to avoid
- You target PAL consoles or non-RP2A03G/RP2C02G hardware revisions, where some tests may skip or misbehave
- You need a general-purpose 6502 assembler, NES development SDK, or library to build your own ROMs
- You are testing non-NES retro platforms such as Game Boy or SNES
Facets
application · maturity active
testing developer-tools gaming-tools developer-tools testing hardware embedded cross-platform nes emulator-testing accuracy-tests test-rom 6502-assembly retro-gaming console-hardware nrom-cartridge
1 source
- readme: https://github.com/100thCoin/AccuracyCoin · fetched 2026-09-03 · ba7f00925a8b
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| 100thCoin/AccuracyCoin | main | 64 |
For agents
markdown · JSON · MCP: product_card(name="100thCoin/AccuracyCoin")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem