# sundog: reconstructing SunDog's p-system runtime

> sundog ports the Atari ST game SunDog: Frozen Legacy to modern platforms by implementing its UCSD Pascal p-system interpreter in C. It runs the original p-code from the player's disk image, reimplements graphics assembly routines and uses SDL2 and OpenGL ES for host input and display.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/laanwj/sundog>
- Primary source: <https://github.com/laanwj/sundog/blob/e56d8e2532134f0741a7f82b80f9357776779f27/README.md>
- Catalog page: <https://awesomerea.org/resources/sundog-frozen-legacy-case/>
- Record JSON: <https://awesomerea.org/resources/sundog-frozen-legacy-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/sundog-frozen-legacy-case/index.md)

## Requirements & limits

- **Prerequisites:** The player's own original-layout 360K .st raw disk image of SunDog: Frozen Legacy.
- **Prerequisites:** SDL2 and OpenGL ES 2 or newer; documented source builds use Meson and Ninja.
- **License:** MIT.

## Primary sources

1. <https://github.com/laanwj/sundog/blob/e56d8e2532134f0741a7f82b80f9357776779f27/README.md>
2. <https://github.com/laanwj/sundog/blob/e56d8e2532134f0741a7f82b80f9357776779f27/doc/notes.md>

## More in Games

- [Super Mario 64: a PlayStation port of reconstructed game source](https://awesomerea.org/resources/sm64-psx-port-case/index.md) · Case study
- [Super Mario All-Stars: a ROM-based Windows and Android port](https://awesomerea.org/resources/super-mario-all-stars-pc-port-case/index.md) · Case study
- [Super Mario Bros.: an Atari Lynx port from NES disassembly](https://awesomerea.org/resources/super-mario-bros-lynx-port-case/index.md) · Case study
- [Super Mario Sunshine: a native PC port from an AI-assisted decompilation](https://awesomerea.org/resources/sms-pc-port-case/index.md) · Case study
- [Super Mario Sunshine: a PAL native PC port with Aurora rendering](https://awesomerea.org/resources/super-mario-sunshine-pal-aurora-port-case/index.md) · Case study
- [Super Mario Sunshine: a PS5 port of the decompiled game](https://awesomerea.org/resources/ps5-sunshine-case/index.md) · Case study

## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.