
INTRODUCTION
------------

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

It has been written by Greg Stanton 
(see http://home.comcast.net/~gscottstanton/) 

PSP7800 is a port on PSP of the version v1.0 of
ProSystem, done by myself in January 2007.

CONTROL
------------

PSP        Atari 7800
  
Cross      Fire1
Square     Fire2
Triangle   L Diff
Circle     R Diff

LTrigger mapping :

  PSP        Atari 7800
    
  Square     Hotkey FPS
  Triangle   Hotkey Load state
  Cross      Hotkey Save state
  Circle     Hotkey swap joystick
  Up         Up
  Down       Down
  Left       Hotkey render
  Right      Hotkey render

RTrigger mapping :

  PSP        Atari 7800 
    
  Square     Fire2
  Triangle   L Diff
  Cross      Hotkey auto-fire
  Circle     R Diff
  Up         Up
  Down       Down
  Left       Hotkey Dec Fire
  Right      Hotkey Inc Fire


Analog     Joystick

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

Analog     Joystick

Press Start  + L + R to exit and return to eloader.
Press Select         to enter in emulator main menu.
Press Start          open/close the On-Screen keyboard

In the main menu

RTrigger   Reset the emulator

Triangle   Go Up directory
Cross      Valid
Circle     Valid
Square     Go Back to the emulator window

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

Use Analog stick to choose one of the 9 squares, and
use Triangle, Square, Cross and Circle to choose one
of the 4 letters of the highlighted square.

Use LTrigger and RTrigger to see other 9 squares
figures.

- IR keyboard

You can also use IR keyboard. Edit the pspirkeyb.ini
file to specify your IR keyboard model, and modify
eventually layout keyboard files in the keymap
directory.

The following mapping is done :

IR-keyboard   PSP

  Cursor        Digital Pad

  Tab           Start
  Ctrl-W        Start

  Escape        Select
  Ctrl-Q        Select

  Ctrl-E        Triangle
  Ctrl-X        Cross
  Ctrl-S        Square
  Ctrl-F        Circle
  Ctrl-Z        L-trigger
  Ctrl-C        R-trigger

In the emulator window you can use the IR keyboard
for cursor keys (but it doesn't work well).


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 PSP memory stick
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.
AUTO-FIRE
------------

It may happens that autofire can not be stopped. 
You have then to try to disable it several times ...


  Enjoy,

            Zx

