X86 Opcode and Instruction Reference: http://ref.x86asm.net
active 2023-08-20 → 2026-05-02 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 987 days from 2023-08-20 to 2026-05-02. Pushes: 13 total, peak 6 in a day. Pull requests: 1 total, peak 1 in a day. Issues: 67 total, peak 24 in a day. Comments: 94 total, peak 29 in a day. Stars: 28 total, peak 1 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 |
|---|---|---|---|---|
| BarebitOpenSource | 173 | 13 | 1 | 94 |
| Hecker128 | 2 | 0 | 0 | 0 |
| mazegen | 1 | 0 | 0 | 0 |
Recent activity
Latest issues, pull requests and releases
- Issue#68Hecker1282025-07-06 08:45Instruction invalid in 64-bit mode not listed as such in coder64 edition
- Issue#68Hecker1282025-06-26 17:50Instruction invalid in 64-bit mode not listed as such in coder64 edition
- Issue comment#52BarebitOpenSource2024-06-05 21:00MOV need to be splitted to mem and nomem syntaxes
- Issue#52BarebitOpenSource2024-06-05 21:00MOV need to be splitted to mem and nomem syntaxes
- Issue#9BarebitOpenSource2024-06-05 20:38Redundant second opcode values instead of mod attribute
- Issue comment#9BarebitOpenSource2024-06-05 20:38Redundant second opcode values instead of mod attribute
- Issue comment#58BarebitOpenSource2024-06-05 15:52Indicate NP and NFx
- Issue#58BarebitOpenSource2024-06-05 15:52Indicate NP and NFx
- Issue#51BarebitOpenSource2024-06-05 15:47UD use wrong operand types and wrong instruction name
- Issue comment#54BarebitOpenSource2024-06-05 15:33Processor family doesn't really make sense
- Issue#54BarebitOpenSource2024-06-05 15:33Processor family doesn't really make sense
- Issue comment#56BarebitOpenSource2024-06-05 15:30instructions 0F AE has mod attribute on entry level and not on syntax level in the xml referefence
- Issue#56BarebitOpenSource2024-06-05 15:30instructions 0F AE has mod attribute on entry level and not on syntax level in the xml referefence
- Issue#15BarebitOpenSource2024-06-05 15:20SIB Notes are wrong/misleading
- Issue#10BarebitOpenSource2024-06-05 15:16Error in Table "32/64-bit ModR/M Byte"
- Issue comment#10BarebitOpenSource2024-06-05 15:16Error in Table "32/64-bit ModR/M Byte"
- Issue#12BarebitOpenSource2024-06-05 15:13Document x87 instruction provenance
- Issue comment#12BarebitOpenSource2024-06-05 15:13Document x87 instruction provenance
- Issue#57BarebitOpenSource2024-06-05 15:07Potential missing metadata attribute for REX.W prefix and no prefix needed
- Issue#43BarebitOpenSource2024-06-05 14:53JMP use wrong operand type
- Issue comment#59BarebitOpenSource2024-06-05 14:52Add ADX instructions
- Issue#59BarebitOpenSource2024-06-05 14:52Add ADX instructions
- Issue#60BarebitOpenSource2024-06-05 14:52Add AES instructions
- Issue comment#60BarebitOpenSource2024-06-05 14:51Add AES instructions
- Issue comment#62BarebitOpenSource2024-06-05 14:49Add "system" instructions and prefixes
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 28 stars here means stars gained during the window, not the repo's star count.