# Install tass64 with Homebrew, apt, dnf, MacPorts, Nix

Multi pass optimizing macro assembler for the 65xx series of processors. Version 1.60.3243 via Homebrew; verified from local package data.

## Install

```sh
sudo av install brew:tass64
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install tass64
```

  Evidence: local Homebrew formula metadata

- MacPorts (94%):

```sh
sudo port install 64tass
```

  Evidence: MacPorts ports tree: devel/64tass/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1

### Linux

- Debian apt (92%):

```sh
sudo apt install 64tass
```

  Evidence: Debian stable package indexes: 64tass from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz

- dnf (92%):

```sh
sudo dnf install 64tass
```

  Evidence: Fedora Rawhide package metadata: 64tass from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst

- Nix (92%):

```sh
nix profile install nixpkgs#_64tass
```

  Evidence: nixpkgs package indexes: pkgs/by-name/_6/_64tass/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

## Package facts

- **Package key:** brew:tass64
- **Package manager:** Homebrew
- **Package manager page:** <https://formulae.brew.sh/formula/tass64>
- **Version:** 1.60.3243
- **Source summary:** Multi pass optimizing macro assembler for the 65xx series of processors
- **Homepage:** <https://tass64.sourceforge.net/>
- **Repository:** <https://sourceforge.net/p/tass64/code/ci/default/tree>
- **Upstream docs:** <https://tass64.sourceforge.net/>
- **License:** GPL-2.0-or-later AND LGPL-2.0-or-later AND LGPL-2.1-only AND MIT
- **Source archive:** <https://downloads.sourceforge.net/project/tass64/source/64tass-1.60.3243-src.zip>
- **Generated:** 2026-07-08T18:08:21+00:00

## Executables

- 64tass (cli)
- 64tass (alias)

## Install behavior

- Post-install hook: not defined
- Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, sonoma, ventura, x86_64_linux

## Freshness

- Page generated: 2026-07-08
- Package-manager version: 1.60.3243
- Local data: ok
- Upstream repository: https://tass64.sourceforge.net/
- info: No package-manager update timestamp was available.
- info: Release/tag comparison is only available for GitHub repositories.
## Project history and usage

64tass is a portable command-line cross assembler for the 65xx family of processors, especially valued in Commodore and 6502 retro-development circles.

### Project history

The 64tass manual credits the original 6502tass for DOS to Marek Matula of Taboo, then notes that BigFoot/Breeze ported it to ANSI C and renamed it 64tass. The same credits say Soci/Singular later reworked the code over the years until little of the original code remained.

SourceForge lists the project as registered on 2010-04-15, with Soci as maintainer, and presents it as a cross assembler targeting the 65xx series of microprocessors.

### Adoption history

The input package metadata lists 64tass in Homebrew, Debian, Ubuntu, Fedora, MacPorts, and Nix. That cross-distro presence is meaningful for an assembler in a niche architecture ecosystem: it lets retro-computing projects build reproducibly on modern developer machines and CI hosts.

### How it is used

Developers use 64tass to assemble code for 6502-derived processors and related systems. The official SourceForge feature list emphasizes portable C with minimal dependencies, compatibility with Omicron TASS and TASM syntax, support for many 65xx variants, macros, conditional compilation, multiple output formats, and listings for debugging or export.

### Why package nerds care

For package nerds, 64tass is a classic example of packaging a retro toolchain component as a modern Unix CLI. It keeps old 8-bit and 16-bit assembly workflows available through contemporary package managers without requiring DOS-era tooling or hand-built binaries.

### Timeline

- 2010: SourceForge project registered.
- 2020: SourceForge file feed includes the 1.55 release line.
- 2025: SourceForge file feed lists 64tass 1.60.3243 source and binary archives.

### Related projects

- The official project page positions 64tass near other 6502 assemblers by citing familiar Omicron TASS and TASM syntax.
- SourceForge related categories place it among assemblers and C assemblers.

### Sources

- <https://sourceforge.net/projects/tass64/>
- <https://sourceforge.net/projects/tass64/rss?path=/>
- <https://sourceforge.net/rest/p/tass64>
- <https://tass64.sourceforge.net/>
- input.source_facts.package-manager


## Security Notes

narrow executable package without higher-risk signals.

- **Geiger risk:** green / low
- narrow executable package without higher-risk signals

## Source Database Details

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** tass64
- **Aliases:** 64tass
- **Version Scheme:** 0
- **Revision:** 0
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** no
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** stable

## Other Package-Manager Records

- MacPorts - 64tass: installed executable or alias match | MacPorts ports tree: devel/64tass/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1
- Debian apt - 64tass - 1.59.3120-2: installed executable or alias match | Debian stable package indexes: 64tass from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | cross (turbo) assembler targeting the MOS 65xx series of micro processors | http://tass64.sourceforge.net/
- Nix - _64tass: installed executable or alias match | nixpkgs package indexes: pkgs/by-name/_6/_64tass/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- Ubuntu apt - 64tass - 1.59.3120-1: installed executable or alias match | Ubuntu 24.04 LTS package indexes: 64tass from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | cross (turbo) assembler targeting the MOS 65xx series of micro processors | http://tass64.sourceforge.net/
- dnf - 64tass - 1.60.3243-6.fc45: installed executable or alias match | Fedora Rawhide package metadata: 64tass from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst | Multi-pass optimizing macro assembler for the 65xx series of processors | https://tass64.sourceforge.net/


## Related links

- [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata.
- [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata.
- [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [prog8](https://www.automicvault.com/pkg/brew/prog8/) - Popular package that depends on this formula.
- [acme](https://www.automicvault.com/pkg/brew/acme/) - Shares av.db curated category or tags: 6502, assembler, cli, developer-tools.
- [dasm](https://www.automicvault.com/pkg/brew/dasm/) - Shares av.db curated category or tags: assembler, cli, developer-tools, macro-assembler.
- [asm6809](https://www.automicvault.com/pkg/brew/asm6809/) - Shares av.db curated category or tags: assembler, cli, developer-tools.
- [gputils](https://www.automicvault.com/pkg/brew/gputils/) - Shares av.db curated category or tags: assembler, cli, developer-tools.
- [jasmin](https://www.automicvault.com/pkg/brew/jasmin/) - Shares av.db curated category or tags: assembler, cli, developer-tools.
- [nasm](https://www.automicvault.com/pkg/brew/nasm/) - Shares av.db curated category or tags: assembler, cli, developer-tools.
- [vc4asm](https://www.automicvault.com/pkg/brew/vc4asm/) - Shares av.db curated category or tags: assembler, cli, developer-tools.
- [cc65](https://www.automicvault.com/pkg/brew/cc65/) - Shares av.db curated category or tags: 6502, assembler, cli, developer-tools.

## Combined YAML source

View the package source record on GitHub. [combined/tass64.yml](https://github.com/automic-vault/db/blob/main/combined/tass64.yml)


## Sources

- Nucleus package database
- Geiger risk classifier
- package-page enrichment
- curated package history
- package version freshness
- av.db category and tag curation
- package relationship graph
- external package-manager database matches
- cross-ecosystem install command graph
