SNASM2 (Saturn)

From Sega Retro

SNASM2 Saturn.jpg
Manufacturer: Cross Products
Made for: Sega Saturn
Release Date RRP Code
Sega Saturn
$4,000 / 4,800 / 7,800 / 10,000 SN310 / SN320 / SN330 / SN340
Sega Saturn
SN310 / SN320 / SN330 / SN340

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SNASM2 is a set of development tools for the Sega Saturn. Initially a third-party alternative to creating Saturn software, it was adopted by Sega as an official set of tools after Cross Products were purchased outright by Sega of America.

The SNASM2 system is essentially split into two parts - an assembler, which takes code written in assembly language and creates an executable for the Saturn hardware to run (in *.coff format), and a debugger, allowing for real-time software debugging.

Two modified production Sega Saturn consoles, one[1][2] with shielded NMI cable, MIRAGE Universal CD Emulator interface port and region switch (MS100), and one[2][3] with MIDI and CD-Emulator ports and region switch for use with Macintosh-based Sega sound tools (MC100) could be ordered from Cross Products as inexpensive alternatives to the Sega Saturn Programming Box.

Promotional material

NextGeneration US 04.pdf

Print advert in Next Generation (US) #4: "April 1995" (1995-03-21)

Edge UK 019.pdf

Print advert in Edge (UK) #19: "April 1995" (1995-02-23)

Edge UK 021.pdf

Print advert in Edge (UK) #21: "June 1995" (1995-04-27)
also published in:
  • Edge (UK) #24: "September 1995" (1995-07-27)[4]


Physical scans


SNASM2.1 Saturn Development System User's Manual.pdf


Sega Saturn
Topics Technical Specifications (Hardware Comparison) | History (Development | Release | Decline and legacy) | List of games (A-M) | List of games (N-Z)
Hardware Sega Saturn consoles (HiSaturn, V-Saturn, etc.) | North America | Europe (West | North | South | Central and East) | Brazil | Asia | South Korea

HiSaturn Navi | SunSeibu SGX | Sega Titan Video

Add-ons Backup Memory (third-party) | Sega PriFun | Video CD Card (third-party) | Extended RAM Cartridge (third-party) | Twin Advanced ROM System
Controllers Control Pad | Control Pad (Australia) | 3D Control Pad | Arcade Racer Joystick | Infrared Control Pad | Mission Stick | Shuttle Mouse | Twin Stick | Virtua Gun | Virtua Stick | Virtua Stick Pro
Online Services/Add-ons NetLink Internet Modem (NetLink Keyboard | NetLink Keyboard Adapter | NetLink Mouse) | Saturn Modem (Floppy Drive | Keyboard)
Connector Cables 21 Pin RGB Cable | Monaural AV Cable | RF Unit | Stereo AV Cable | S-Video Cable | Taisen Cable
Development Hardware Programming Box | Sound Box | E7000 | CartDev | SNASM2 | Address Checker | PSY-Q Development System | MIRAGE Universal CD Emulator
Misc. Hardware 6 Player Adaptor‎ | SBom Multitap‎ | Saturn region converter cartridges | Action Replay | Pro Action Replay | Action Replay Plus | S-S Promoter