
    Welcome to GP2X-7800 - 1.0.2

Original Author of ProSystem

  Greg Stanton (see http://home.comcast.net/~gscottstanton/) 

Author of the PSP and GP2X ports version 

  Ludovic.Jacomme also known as Zx-81 (see http://zx81.zx81.free.fr)


1. INTRODUCTION
   ------------

  ProSystem is the best emulator of Atari 7800 game console, 
  running on Windows system.

  PSP7800 is a port on PSP of the version v1.2 of ProSystem.

  **** Big Big thanks to Danno for his help on game compatibility issues ! ***

  This package is under GPL Copyright, read COPYING file for
  more information about it.


2. INSTALLATION
   ------------

  Unzip the zip file, and copy the content of the directory game to your
  SD memory.

  Put your roms files on "roms" sub-directory. 

  If you want to use the original 7800 Bios, then put the file called
  7800.rom in the game/7800 directory.

  For any comments or questions on this version, please visit 
  http://zx81.zx81.free.fr or http://www.gp32x.com/


3. CONTROL
   ------------

  In the 7800 emulator window, there are three different mapping 
  (standard, left trigger, and right Trigger mappings). 
  You can toggle between while playing inside the emulator using 
  the two trigger keys.

  Normal mapping :

    GP2X       Atari 7800
  
    X          Fire 1
    A          Fire 2
    Y          L diff
    B          R diff

    LTrigger   Toogle with L keyboard mapping
    RTrigger   Toggle with R keyboard mapping

  LTrigger & RTrigger mapping :

    GP2X        Atari 7800
  
    X          Reset
    A          Select
    Y          L diff
    B          R diff

    Joystick   Joystick
    
    Press Select  to enter in emulator main menu.
    Press Start   open/close the On-Screen keyboard

  In the main menu

    RTrigger   Reset the emulator

    Y   Go Up directory
    X   Valid
    B   Valid
    A   Go Back to the emulator window

  The On-Screen Keyboard of "Danzel" and "Jeff Chen"

    Use the stick to choose one of the 9 squares, and
    use A, B, X, Y to choose one of the 4 letters 
    of the highlighted square.

    Use LTrigger and RTrigger to see other 9 squares 
    figures.


4. LOADING ROM FILES (.A78)
   ------------

  If you want to load rom images in the virtual drive of your emulator,
  you have to put your rom file (with .zip or .a78 file extension) on your GP2X
  SD memory in the 'roms' directory. 

  Then, while inside Atari 7800 emulator, just press SELECT to enter in the emulator 
  main menu, choose "Load ROM" and then using the file selector choose one game 
  file to load in your emulator. Back to the emulator window, your game should 
  run automatically.


5. LOADING KEY MAPPING FILES
   ------------

  For given games, the default keyboard mapping between GP2X Keys and Atari 7800
  keys, is not suitable, and the game can't be played on GP2X7800.

  To overcome the issue, you can write your own mapping file. Using notepad for
  example you can edit a file with the .kbd extension and put it in the kbd 
  directory.

  For the exact syntax of those mapping files, have a look on sample files already
  presents in the kbd directory (default.kbd etc ...).

  After writting such keyboard mapping file, you can load them using 
  the main menu inside the emulator.

  If the keyboard filename is the same as the rom file (.a78) then 
  when you load this rom file, the corresponding keyboard file is 
  automatically loaded !

  You can now use the Keyboard menu and edit, load and save your
  keyboard mapping files inside the emulator. The Save option save the .kbd
  file in the kbd directory using the "Game Name" as filename. The game name
  is displayed on the right corner in the emulator menu.

  
6. COMPILATION
   ------------

  It has been developped under Linux using gcc with GP2XSDK. 
  To rebuild the homebrew run the Makefile in the src archive.
