# Install quasi88 with Homebrew

PC-8801 emulator. Version 0.7.4 via Homebrew; verified 2026-06-18.

## Install

```sh
sudo av install brew:quasi88
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install quasi88
```

  Evidence: local Homebrew formula metadata

## Package facts

- **Package key:** brew:quasi88
- **Package manager:** Homebrew
- **Package manager page:** <https://formulae.brew.sh/formula/quasi88>
- **Version:** 0.7.4
- **Source summary:** PC-8801 emulator
- **Homepage:** <https://www.eonet.ne.jp/~showtime/quasi88/>
- **Upstream docs:** <https://www.eonet.ne.jp/~showtime/quasi88>
- **License:** BSD-3-Clause
- **Source archive:** <https://www.eonet.ne.jp/~showtime/quasi88/release/quasi88-0.7.4.zip>
- **Last updated:** 2026-06-18T02:29:01-04:00
- **Generated:** 2026-07-08T18:08:21+00:00

## Executables

- quasi88 (cli)
- quasi88 (alias)

## Dependencies

- sdl2-compat

## Install behavior

- Post-install hook: not defined
- Caveats: You will need to place ROM and disk files. Default arguments for the directories are: -romdir ~/quasi88/rom/ -diskdir ~/quasi88/disk/ -tapedir ~/quasi88/tape/
- Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux

## Freshness

- Page generated: 2026-07-08
- Package-manager version: 0.7.4
- Package-manager updated: 2026-06-18
- Local data: ok
- Upstream repository: https://www.eonet.ne.jp/~showtime/quasi88/
- info: Release/tag comparison is only available for GitHub repositories.
## Project history and usage

QUASI88 is S. Fukunaga's PC-8801 emulator for SDL2-capable Windows and Unix-like systems.

### Project history

The official site says QUASI88 was created with reference to fMSX source code, uses sound-driver code from MAME and xmame, and includes the fmgen FM sound generator. The site carries copyright years 1998-2026 and lists version 0.7.4 as released on 2026-05-01.

### Adoption history

QUASI88 has long been packaged by Unix-like package managers because it gives retro-computing users a small, SDL-based PC-8801 emulator with command-line startup and documented ROM and disk-image handling.

### How it is used

Users run quasi88 after providing PC-8801 ROM image files. The official how-to documents QUASI88_ROM_DIR and QUASI88_DISK_DIR for locating ROM and disk images, command-line startup with disk images, and menu-mode configuration through function keys.

### Why package nerds care

QUASI88 is the kind of emulator package that exposes old-platform preservation details directly to packagers: external BIOS ROM requirements, D88 disk image support, SDL2 linkage, and careful separation between distributable emulator code and user-supplied copyrighted ROM images.

### Timeline

- 1998: Copyright period begins on the official QUASI88 site.
- 2024: QUASI88 0.7.0 added SDL2 support according to official history notes.
- 2026-05-01: QUASI88 0.7.4 released according to the official homepage and download page.

### Related projects

- fMSX influenced the emulator source according to the official site.
- MAME, xmame, and fmgen are credited by the official site for sound-related code.

### Sources

- <https://www.eonet.ne.jp/~showtime/quasi88/>
- <https://www.eonet.ne.jp/~showtime/quasi88/download.html>
- <https://www.eonet.ne.jp/~showtime/quasi88/history.html>
- <https://www.eonet.ne.jp/~showtime/quasi88/howto.html>
- <https://www.eonet.ne.jp/~showtime/quasi88/howto/index.html>


## 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:** quasi88
- **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


## Related links

- [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata.
- [Game and emulation packages](https://www.automicvault.com/pkg/game-emulation-tools/) - Matched game or emulation metadata.
- [Homebrew utility packages](https://www.automicvault.com/pkg/brew-utility-packages/) - Matched Homebrew package provider.
- [sdl2-compat](https://www.automicvault.com/pkg/brew/sdl2-compat/) - Runtime dependency declared by Homebrew.
- [dosbox-staging](https://www.automicvault.com/pkg/brew/dosbox-staging/) - Shares av.db curated category or tags: cli, emulation, emulator, games, retro-computing.
- [dosbox-x](https://www.automicvault.com/pkg/brew/dosbox-x/) - Shares av.db curated category or tags: cli, emulation, emulator, games, retro-computing.
- [supermodel](https://www.automicvault.com/pkg/brew/supermodel/) - Shares av.db curated category or tags: cli, emulation, emulator, games, sdl2.
- [blastem](https://www.automicvault.com/pkg/brew/blastem/) - Shares av.db curated category or tags: cli, emulation, emulator, games.
- [fceux](https://www.automicvault.com/pkg/brew/fceux/) - Shares av.db curated category or tags: cli, emulation, emulator, games.
- [huexpress](https://www.automicvault.com/pkg/brew/huexpress/) - Shares av.db curated category or tags: cli, emulation, emulator, games.
- [joyce](https://www.automicvault.com/pkg/brew/joyce/) - Shares av.db curated category or tags: cli, emulation, emulator, games.
- [mame](https://www.automicvault.com/pkg/brew/mame/) - Shares av.db curated category or tags: cli, emulation, emulator, games.

## Combined YAML source

View the package source record on GitHub. [combined/quasi88.yml](https://github.com/automic-vault/db/blob/main/combined/quasi88.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
- cross-ecosystem install command graph
