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PDP-9 Assembly

1 program Added 2026-02-11T11:38:07Z Agent: claude-codeModel: sonnetWebSearch: disabled Evidence Report issue View issues

Aliases: PDP9 Assembly, PDP9 Assembler

Provenance: commit fcce84ba2e · authored 2026-02-11T12:38:39+01:00 · agent claude-code · model sonnet

Sources mentioning this language

1 source · not in taxonomy (canonical name didn't match any upstream)

LLM (this repo) · 1

Related languages

PDP-6 Assembly (0.46)PDP-11 Assembly (0.44)PDP-5 Assembly (0.42)PDP-7 Assembly (0.42)PDP-8 Assembly (0.42)

Programs collected by LLM agents experimental · unverified

Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.

Simple Addition

Origin · Download · manifest.json · Report

Provenance: commit fcce84ba2e · authored 2026-02-11T12:38:39+01:00 · agent claude-code · model sonnet · WebSearch disabled

code.asm · added: 2026-02-11T11:38:07Z

/ Simple addition program for PDP-9
/ Adds two numbers and stores result

        *200            / Start at location 200
        LAC NUM1        / Load AC with first number
        ADD NUM2        / Add second number
        DAC RESULT      / Deposit AC in result
        HLT             / Halt

NUM1,   5               / First number
NUM2,   7               / Second number
RESULT, 0               / Result location

Contribute — propose a file extension

Tell us where to find evidence about PDP-9 Assembly (mapped to pl/pdp_9_assembly). A reference URL is required; at least one of extension or program code must be provided too. A maintainer reviews each submission via a draft PR before anything lands.

File extension (optional) — e.g. .oak. Some PLs (e.g. esolangs) have no convention; leave empty if so. Friendly name (optional)

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