Quantcast
Games-db.com homepage: The Game Database Computer Console Arcade Pinball Handheld Traditional
Search
Message Board
Platforms Overview
Home
Games-db / Arcade /

Defense Command (set 1)

Database Areas

Platforms


Site Areas

Submit Data
You are a game expert?
You are interested in
sharing your knowledge?
Submit your data here:
email

Top contributors
 
Arcade
Arcade
Platform:

Defense Command (set 1)

| 1980
Genre:
Style:
Theme:
Description:

Notes:
Release type:
Units produced: bootleg
Controls/Input Device: Control(joy8way), Buttons(5)
Number of Players: 1
Rating:
Creator:
More Creator:
More Coder/Software:
Developer:
Manufacturer:
Publisher:
License from/Copyright:
Graphics/Artwork:
Music:
SoundFX:
System/ConversionClass:
SoundMix: Mono
Coder/Software:
More Graphics/Artwork:
More Music/Sound:
Acting Talent involved:
:
:
More Machine Details:
More System Details:
Game Awards Nominations:
Game Awards Won:
Title a.k.a.:
Slogans:
Avg. Playtime:
Legacy/Follow-Ups:
Similar Games:
MAME folder name: defcmnd

Display: raster 294x238 @ 60.10Hz (60.10 pixclock)
Sound: 1 channels

Emulated in MAME via driver williams.c:
Status: good; Emulation: good
Graphic: good; Sound: good; Color: good
Palette size: 0; Savestate: supported

Roms:
defcmnda.1 with 4096kb
sha1:459fd95cdf94233e1a4302d1c166e0f7cc239579 crc:68effc1d
defcmnda.10 with 2048kb
sha1:f45fcf3e5ca9bf3edd692b4ee1e96f9f1d388522 crc:3dddae75
defcmnda.2 with 4096kb
sha1:526cf1ca3a7eefd6115d74ac9af1a50774cc258e crc:1126adc9
defcmnda.3 with 4096kb
sha1:d2cdab8ac4830ac027655ed7fe54314c5b87fdb3 crc:7340209d
defcmnda.4 with 2048kb
sha1:b13d59940646451c00b49bbe4a41b9e2df4d7758 crc:43d42a1b
defcmnda.5 with 2048kb
sha1:91cf841271a2f7d06f81477b4a450eb4580c7ca5 crc:49b50b40
defcmnda.6 with 2048kb
sha1:d32a4232756ca05972780cb35b0add12b31e8283 crc:d068f0c5
defcmnda.7 with 2048kb
sha1:87afb4b1158e64039129bd8a9653bc61ab3e1e37 crc:3f1e7cf8
defcmnda.8 with 2048kb
sha1:96202e97f3392bc043a252e78d1c42b51c38d269 crc:fef4cb77
defcmnda.9 with 2048kb
sha1:9d54a39230acd01e0555f67ba2a3c9c6d66b59a1 crc:8882e1ff
defcmnda.snd with 2048kb
sha1:70092fc354a2efbe7365be922fa36309b50d5c6f crc:f122d9c9
Mameinfo.dat entry:
0.37b10 [Yochizo]


WIP:

- 0.147u2: hap fixed clone Omega Fighter Special. The game fails to boot or finish post. After showing bad rom errors, the game resets.

- 0.147u1: Fixed maincpu rom loading.

- 0.122u7: Fixed gfx1/2/3/4/5 rom loading.

- 0.89u3: Changed Z80 CPU2 clock speed to 5MHz.

- 0.37b10: Yochizo added 'Omega Fighter' (UPL 1989) and clone Omega Fighter Special.

- 21st November 2000: Yochizo fixed some graphics bugs in the Omega Fighter / Atomic Robo-kid driver.

- 8th November 2000: Yochizo sent in a driver for Omega Fighter and Atomic Robo-kid.

- 25th April 1999: Dumped Omega Fighter Special.


LEVELS: 8 (restarts once)


Other Emulators:

* FB Alpha

* JFF

* Raine


Recommended Games (Star Force):

Catacomb

Vega

Espial

Night Star (DECO Cassette)

Nova 2001

Star Jacker

Stunt Air

Zodiack

Star Force

Alpha Mission / ASO

Alpha Mission II / ASO II

Astro Warrior (Mega-Tech)

Mission 660

Rafflesia

S.R.D. Mission

Truxton / Tatsujin

Tatsujin (Tourvision PCE bootleg)

Truxton II / Tatsujin Oh

Blast Off

Blazing Lazers

GunHed (Tourvision PCE bootleg)

The Next Space

Omega Fighter

Super Star Soldier (Tourvision PCE bootleg)

Lethal Thunder

Pollux

Strike Gunner S.T.G

Vimana

Explosive Breaker

Final Star Force

Galmedes

Gunlock

GunNail

Nebulas Ray

Super-X

Gekirindan

Viper Phase 1

Fever SOS

Mars Matrix: Hyper Solid Shooting


Romset: 2016 kb / 8 files / 457.8 zip


Credits Mameinfo and Mametesters Project Robert J. Rabgno et al.
History.dat entry:
Defense Command (c) 1981 Artic International.

- TECHNICAL -

Main CPU : Motorola M6809 (@ 1 Mhz)
Sound CPU : M6808 (@ 894.75 Khz)
Sound Chips : DAC

Screen orientation : Horizontal
Video resolution : 294 x 239 pixels
Screen refresh : 60.00 Hz
Palette colors : 16

Players : 2
Control : 2-way joystick (vertical)
Buttons : 5

- TRIVIA -

This bootleg of "Defender" resulted in a far-reaching legal decision in US copyright law. Williams sued the distributor of the game, Artic International, for copyright infringements of 1) the game's ROM code and 2) the 'look-and-feel' of the attract and play modes.

Artic never contested that the 'Defense Command' ROM code had been lifted from the Williams "Defender" game; over 85% of the code was identical in both games. However, Artic argued that ROM chips should be considered as 'utilitarian objects', much like common knobs and gears which are beyond the scope of copyright law. Artic had used this argument unsuccessfully in a similar case against Midway Manufacturing.

The court reaffirmed the previous legal decision against Artic. Under US copyright law, intellectual property can be protected if it is made permanent in some way (known in legal terms as 'fixation'). Computer code stored in ROM chips met this requirement. Artic lost its case against Williams.

The Midway/Williams decisions against Artic set an important legal precedent : compiled computer code was protected under copyright law regardless of the medium of storage.

- CONTRIBUTE -

Edit this entry: http://www.arcade-history.com/?&page=detail&id=615&o=2


Licensed from Alexis Bousiges under a CC Attribution 3.0 License
cheat.dat entry:
00000000 A037 00000099 FFFFFFFF Infinite Credits
20800000 E8A4 00000000 FFFFFFFF Invincibility
20810000 E8AB 00000020 FFFFFFFF Invincibility (2/2)
00000000 A0BA 0000000A FFFFFFFF Always start and end with 10 defendees You will never go onto space with this cheat but the defendees will disappear as they are captured or destroyed.
60000000 0000 00000000 00000000
00000000 A1A1 00000005 FFFFFFFF Infinite Lives PL1
00000000 A1A3 00000004 FFFFFFFF Infinite Smart Bombs PL1
00000701 A1A2 00000063 FFFFFFFF Select Current Attack Wave PL1
00000703 A1A2 00000063 FFFFFFFF Select Next Attack Wave PL1
60000000 0000 00000000 00000000
00000000 A1DE 00000005 FFFFFFFF Infinite Lives PL2
00000000 A1E0 00000004 FFFFFFFF Infinite Smart Bombs PL2
00000701 A1DF 00000063 FFFFFFFF Select Current Attack Wave PL2
00000703 A1DF 00000063 FFFFFFFF Select Next Attack Wave PL2

Credit Pugsy's MAME Cheat file
Advert