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Defense Command (Defender bootleg)

  1. Game infos
  2. Parent and Clones
  3. Sound
  4. Driver
  5. Inputs
  6. Controls
  7. Display
  8. Roms list
  9. Chips list
  10. Serie
  11. Categories
  12. History
Download defcmnd.zip (0 B)
Snapshot

Game infos

Description Defense Command (Defender bootleg)
Name defcmnd
Manufacturer bootleg
Year 1980
Runnable yes
System arcade /
Number of players 2P alt
Added to MAME .034b06
Romset size 0 B
Romset file files
Romset zip 0 B
Language English
Genre Shooter

Parent and clones

Parent defender : Defender (Red label) (1980)

Sound infos

Sound_channels 1

Driver infos

Driver status good
Driver emulation good
Driver color good
Driver sound good
Driver graphic good
Driver cocktail
Driver protection
Driver savestate yes

Inputs infos

Input service no
Input tilt yes
Input players 1
Input buttons
Input coins 3

Controls infos

type ways minimum maximum sensitivity keydelta reverse
joy vertical2 no

Display infos

type rotate flipx width height refresh pixclock htotal hbend hbstart vtotal vbend vbstart
raster 0 no 292 240 60.096154 8000000 512 12 304 260 7 247

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade defcmnda.1 4096 68effc1d 459fd95cdf94233e1a4302d1c166e0f7cc239579 maincpu d000 good no
arcade defcmnda.10 2048 3dddae75 f45fcf3e5ca9bf3edd692b4ee1e96f9f1d388522 maincpu 10000 good no
arcade defcmnda.2 4096 1126adc9 526cf1ca3a7eefd6115d74ac9af1a50774cc258e maincpu e000 good no
arcade defcmnda.3 4096 7340209d d2cdab8ac4830ac027655ed7fe54314c5b87fdb3 maincpu f000 good no
arcade defcmnda.4 2048 43d42a1b b13d59940646451c00b49bbe4a41b9e2df4d7758 maincpu 16000 good no
arcade defcmnda.5 2048 49b50b40 91cf841271a2f7d06f81477b4a450eb4580c7ca5 maincpu 12800 good no
arcade defcmnda.6 2048 d068f0c5 d32a4232756ca05972780cb35b0add12b31e8283 maincpu 11800 good no
arcade defcmnda.7 2048 3f1e7cf8 87afb4b1158e64039129bd8a9653bc61ab3e1e37 maincpu 10800 good no
arcade defcmnda.8 2048 fef4cb77 96202e97f3392bc043a252e78d1c42b51c38d269 maincpu 12000 good no
arcade defcmnda.9 2048 8882e1ff 9d54a39230acd01e0555f67ba2a3c9c6d66b59a1 maincpu 11000 good no
arcade defcmnda.snd 2048 f122d9c9 70092fc354a2efbe7365be922fa36309b50d5c6f soundcpu f800 good no

Chips list

name tag type clock
M6808 soundcpu cpu 3579545
M6809 maincpu cpu 1000000
MC1408 dac audio
Speaker speaker audio

Serie

Serie : Defender
  1. Defense Command (Defender bootleg) (1980)
  2. Defender (Red label) (1980)
  3. Defender (Blue label) (1980)
  4. Defender (Green label) (1980)
  5. T.T. Defender (1980)
  6. Defender (White label) (1980)
  7. Defender (bootleg) (1980)
  8. Tornado (set 1, Defender bootleg) (1980)
  9. Tornado (set 2, Defender bootleg) (1980)
  10. Zero (set 1, Defender bootleg) (1980)
  11. Zero (set 2, Defender bootleg) (1980)
  12. Defence Command (Defender bootleg) (1981)
  13. Stargate (1981)
  14. Star Trek (Defender bootleg) (1981)
  15. Defender (1982)
  16. Defender (1982)
  17. Defender (1982)
  18. Defender (1982)
  19. Defender (1982)
  20. Defender v1.0 (Deleted) (1982)
  21. Defender (clean crack) (1983)
  22. Defender (1983)
  23. Defender (1983)
  24. Defender (1983)
  25. Defender (1983)
  26. Defender (1983)
  27. Defender (1983)
  28. Stargate (1984)
  29. Stargate (Prototype) (1984)
  30. Stargate (Prototype) (1984)
  31. Zerosen (1984)
  32. Defender (Ger) [CPC Schneider International] (1986)
  33. Star Gate (Jpn) (1987)
  34. Strike Force (1987)
  35. The 4th Unit 4 - Zero (1989)
  36. Zero - The 4th Unit Act. 4 (1989)
  37. Zero - The 4th Unit Act. 4 (Jpn) (1990)
  38. Zero - The 4th Unit Act. 4 (1990)
  39. Zero - The 4th Unit Act 4 (1990)
  40. Strike Force (rev 1 02/25/91) (1991)
  41. Stargate (Euro, USA) (1994)
  42. Stargate (World) (1994)
  43. Stargate (Euro, USA) (1994)
  44. Zero the Kamikaze Squirrel (Euro) (1994)
  45. Zero the Kamikaze Squirrel (Euro, Rev. A) (1994)
  46. Stargate (Euro) (1995)
  47. Defender 2000 (1996)
  48. DEFENCE (19??)
  49. Defender (MR R) (19??)
  50. Defender II: Stargate (19??)
  51. Defender (Euro) (2002)

Categories

History


Arcade Video game published 38 years ago:

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 -

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