        DCSI v0.4
       by D. Finck
    dgfinck@yahoo.com
http://www.finck.net/dcsi/

--How to Play----
 The menu for setting game dipswitches (options) is mostly
 self explainitory.  Move the d-pad to change games.

 Important in-game buttons:
     X   : insert coin
  L-trig : 1 player
  R-trig : 2 player
  D-pad  : move ship left/right
     A   : fire
 Not-so-important in-game buttons:
     Y   : tilt
     B   : move ship right 
 (The duplicate directional control is only needed so the 
  'secret message' can be activated, as it requires pressing
  both left and right at the same time.  This was possible
  on the original game because it used buttons for ship
  movement, not a joystick.)

--Info-----------
 DCSI uses an 8080 emulator I wrote myself entirely from scratch.
 I call it "POS8080Emu" (POS standing for Portable, Open-Source).
 It is still incomplete, but apparently complete enough to run SI
 and SI Deluxe (although SI Deluxe hangs in "preset mode").

--Credits--------
 DCSI is linked with Dan Potter's libdream library which 
 provides convienent access to the basic DC hardware.
 Sound samples are played through s3mplay, also by Dan Potter.
 (http://dcdev.allusion.net/)

 I have borrowed a lot of the DC-specific stuff used in here
 from Chris White's DCPhoenix (http://www.alienwebshop.com/pointblank/dc/)
 all the sound-sample-playing stuff, malloc, the init and exit bits,
 the clear-screen function, and perhaps a few other things.
 I also got learned of the existance of bin2c.exe from the
 DCPhoenix source.

 The sound samples used where made by Dith.
 (http://www.mameworld.com/dith/)

 The background graphic image for SI was borrowed from a screenshot of
 Space Invaders running in Retrocade (remember retrocade?)
 [...and why doesn't MAME support the SI artwork??]
 The background graphic image for SI Deluxe was provided by NE146.
 I don't know where he got it from, but he plays a mean game of SI.

 The "Arcade Emulation How-To" document by M. Adcock was consulted
 for information regarding ports, memory mapping, etc for SI.
 (http://kontek.net/pp/technical/arcade/aehowto.txt) or
 (http://www.classicgaming.com/epr/arcade/aehowto.txt)

 The ROM images themselves are likely copyrighted by their copyright
 holder, whomever that may be.  This program is an educational
 endeavor and therefore should be covered by the fair-use doctorines.
 However, I am not a lawyer nor do I know any that work for free,
 so future versions of this emulator may be provided without the ROMs,
 especially if I hear from the copyright holder(s)...

