A collection of ROM images with tests that will aid you in developing your own CHIP-8, SUPER-CHIP or XO-CHIP interpreter (or "emulator")
active 2023-08-16 → 2026-06-07 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 1027 days from 2023-08-16 to 2026-06-07. Pushes: 22 total, peak 4 in a day. Pull requests: 15 total, peak 3 in a day. Issues: 10 total, peak 2 in a day. Comments: 40 total, peak 10 in a day. Stars: 422 total, peak 5 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| Timendus | 60 | 21 | 9 | 22 |
| GamingMadster | 14 | 0 | 3 | 9 |
| gulrak | 6 | 1 | 1 | 3 |
| sepkov | 3 | 0 | 0 | 1 |
| eshom | 2 | 0 | 0 | 2 |
| DeybisMelendez | 2 | 0 | 0 | 0 |
| douglascamata | 2 | 0 | 0 | 2 |
| gfcwfzkm | 1 | 0 | 0 | 0 |
| coornio | 1 | 0 | 0 | 1 |
| mcbattirola | 1 | 0 | 1 | 0 |
| algometric | 1 | 0 | 0 | 0 |
| greg-kennedy | 1 | 0 | 1 | 0 |
| sivansh11 | 1 | 0 | 0 | 0 |
Recent activity
Latest issues, pull requests and releases
- Issue comment#27douglascamata2025-11-24 23:54Implement CxNN Test
- Issue comment#29douglascamata2025-11-24 23:53Enhanced skip ocode tests
- Issue#32gulrak2025-07-26 07:26The quirks test doesn't test if the non-quirked shift fully works
- Issue#30DeybisMelendez2025-05-28 21:34Discrepancies Between Quirk Test Results and Actual Game Behavior (Space Invaders, Blink)
- Issue#30DeybisMelendez2025-05-28 14:51Discrepancies Between Quirk Test Results and Actual Game Behavior (Space Invaders, Blink)
- Pull request#29gulrak2025-02-03 16:31
- Issue#28sivansh112025-02-01 22:045XY0 not tested properly in "Corax+ opcode test"
- Issue comment#27GamingMadster2024-12-27 17:30Implement CxNN Test
- Issue comment#27GamingMadster2024-12-27 17:11Implement CxNN Test
- Pull request#27GamingMadster2024-12-27 17:09
- Issue comment#5Timendus2024-11-04 13:39Ideas for further improvement
- Issue comment#5eshom2024-10-19 09:05Ideas for further improvement
- Issue comment#5gulrak2024-10-19 08:18Ideas for further improvement
- Issue comment#5gulrak2024-10-19 08:09Ideas for further improvement
- Issue comment#5eshom2024-10-19 07:57Ideas for further improvement
- Issue comment#5Timendus2024-09-17 12:17Ideas for further improvement
- Issue comment#26gulrak2024-09-06 09:33Is check at 2EC correct?
- Issue#26sepkov2024-09-05 18:24Is check at 2EC correct?
- Issue comment#26sepkov2024-09-05 18:24Is check at 2EC correct?
- Issue#26sepkov2024-09-05 18:20Is check at 2EC correct?
- ReleaseTimendus2024-08-30 21:25v4.2
- Pull request#25Timendus2024-08-30 21:21
- Pull request#25Timendus2024-08-22 19:03
- Issue#21Timendus2024-08-22 14:35Quirks test Memory is only testing FX55, not FX65
- Pull request#23Timendus2024-08-22 14:35
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 422 stars here means stars gained during the window, not the repo's star count.