# Supaplex: disassembly of the speed-fix executable

> This disassembles the Supaplex speed-fix executable SPFIX63.EXE. The repository has the assembly and an IDA database. It builds in DOSBox with TASM 4.1 after the original Supaplex files are extracted into build/.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-07
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/cilliemalan/supaplex>
- Primary source: <https://github.com/cilliemalan/supaplex/blob/72292a798f8bc71cb5743478437bc0b520ec5b60/README.md>
- Catalog page: <https://awesomerea.org/resources/supaplex-speedfix-disasm/>
- Record JSON: <https://awesomerea.org/resources/supaplex-speedfix-disasm/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/supaplex-speedfix-disasm/index.md)

## Requirements & limits

- DOSBox and TASM 4.1. The documented build command inside DOSBox is TASM\MAKE. Tests use TEST.BAT.
- License: MIT for the disassembled source in this repository.

## Primary sources

1. <https://github.com/cilliemalan/supaplex/blob/72292a798f8bc71cb5743478437bc0b520ec5b60/README.md>

## More in Games

- [SupComDecomp: reference decompilation of Forged Alliance](https://awesomerea.org/resources/supcom-decomp-case/index.md) · Case study
- [Super Columns: a Game Gear disassembly](https://awesomerea.org/resources/super-columns-game-gear-disassembly-case/index.md) · Case study
- [Super Mario Bros. 3: Famicom disassembly](https://awesomerea.org/resources/smb3-famicom-disassembly-case/index.md) · Case study
- [Super Mario RPG: an SNES disassembly assembled with extracted assets](https://awesomerea.org/resources/super-mario-rpg-disassembly-case/index.md) · Case study
- [Super Monkey Ball Jr.: GBA disassembly](https://awesomerea.org/resources/smbjr-case/index.md) · Case study
- [SUPERCOPTER: decompiled MS-DOS Pascal source](https://awesomerea.org/resources/supercopter-decompiled-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.