Case study

Venture: a reverse-engineered Atari 2600 source listing

Venture for the Atari 2600 (Coleco) is reverse-engineered into commented 6502 source with a DASM build command that writes a listing, symbol table and binary. Comments document the screen region used for rooms, sprite timesharing in the moving-wall room, monster status values, shot range, collision handling and per-room playfield offsets, and every graphics table carries a visual comment of its pixels; two RAM bytes are marked unused by the original code.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-09
Evidence class: C3 notes only

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Evidence

Observed: No code found behind the entry URL.
Scope: Notes
Checked: 2026-11-10

How evidence classes are assigned

Requirements & limits

Prerequisites: Building requires DASM and vcs.h.
License: No licence stated on the project page.

Cite

BibTeX

@misc{venture-atari-2600-disassembly-case,
  title = {{Venture: a reverse-engineered Atari 2600 source listing}},
  howpublished = {\url{https://www.qotile.net/minidig/disassembly/venture.asm}},
  url = {https://www.qotile.net/minidig/disassembly/venture.asm},
  urldate = {2026-11-09},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/venture-atari-2600-disassembly-case/}}
}

Plain text

Venture: a reverse-engineered Atari 2600 source listing. https://www.qotile.net/minidig/disassembly/venture.asm (accessed 2026-11-09). Awesome REA entry: https://awesomerea.org/resources/venture-atari-2600-disassembly-case/

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About this entry

The description was reviewed against primary sources.

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Primary sources

https://web.archive.org/web/20260202113530/https://www.qotile.net/minidig/disassembly/venture.asm