library-am9511 SKILL.md skillA
library-am9511 from feilipu/8085-skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add feilipu/8085-skills/library-am9511@git:20260929.760a711Pins git:20260929.760a711 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- feilipu/8085-skills
- Path
.agents/skills/library-am9511/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260929.760a711, committed Sep 29, 2026
- First version recorded
- Aug 21, 2026
- Size
- 13,013 bytes
- Repository stars
- 3
- License
- MIT
Am9511A (Intel 8231A) APU float library: IEEE host format vs APU format, pushf/popf status mapping, IEEE-side specials, classic/newlib link flags, multi-product rebuild. Use when editing libsrc/math/float/am9511, APU I/O, or measuring --math-am9511 / --am9511.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Library — am9511 (Am9511A APU)
Home: `libsrc/math/float/am9511/`.
Product docs of record: `libsrc/math/float/am9511/readme.md`.
**Vendor datasheets / app notes (canonical):** external repo
[z88dk/techdocs](https://github.com/z88dk/techdocs) → **`amd/am9511a/`**
(not under this product tree).
## When to load this skill
- Editing `asm/am32_*.asm`, `asm/z80/` or `asm/8085/` push/pop/classify, or `am32_fspecial.asm`
- Wiring `--math-am9511` / `--am9511` / `--am9511h`
- Debugging Inf/NaN, divide-by-zero, sqrt(neg), or wrong zero after APU ops
- Comparing am9511 vs math32 TIMER (hardware APU vs software float)
## Link / flags
| Audience | Typical flags |
|----------|----------------|
| Classic z80 | `--math-am9511` or `--am9511`; needs APU at the port map in config |
| Classic 8085 | `--math-am9511` with `-clib=8085` (`-lam9511@{ZCC_LIBCPU}` → `am9511_8085`). There is no `--math-am9511_8085` alias |
| Classic helper | `--am9511h` → `am9511h.lib` (same z80 sources, `-D__AM9511_HELPER_FUNC`) |
| Newlib | `--am9511` / `-lam9511` with IEEE float mode as in readme (z80 clib only) |
…Read the whole file at its exact version.
How to install
mdr add feilipu/8085-skills/library-am9511@sha256:1ba14e62403cd96aThe line at the top of this page pins the label git:20260929.760a711, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_jgpwkq2s3ovfwwok)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Aug 21, 2026 and Sep 29, 2026, about one every 20 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260929.760a711 latest | 2026-09-29 | 760a711 | 13,013 B | A | view · diff |
| git:20260918.95c4588 | 2026-09-18 | 95c4588 | 12,955 B | A | view · diff |
| git:20260821.71d8484 | 2026-08-21 | 71d8484 | 12,469 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (13013 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
feilipu/8085-skills · 3 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_jgpwkq2s3ovfwwok GET https://markdownregistry.com/api/v1/resolve?ref=feilipu/8085-skills/library-am9511 GET https://markdownregistry.com/api/v1/blob/1ba14e62403cd96ad9ff8baac556918ff96b2302c167507b068b434ca0712cd8
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.