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 ------------ - Virtual keyboard 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 PSP trigger keys. ------------------------------------- PSP Atari 7800 (standard) Cross Fire1 Square Fire2 Triangle L Diff Circle R Diff Left Left Down Down Right Right Up Up Analog Joystick ------------------------------------- PSP Atari 7800 (left trigger) Square Hotkey FPS Triangle Hotkey Load state Circle Swap digital / Analog Cross SAVE Snapshot Up Inc delta Y Down Dec delta Y Left Render mode Right Render mode ------------------------------------- PSP Atari 7800 (right trigger) Square Pause Triangle Reset Cross Auto-fire Circle Select Up Up Down Down Left Dec Fire Right Inc Fire Analog Joystick Press Start+L+R to exit and return to XMB 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 to enter letters, special characters and digits. 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. You can use the virtual keyboard in the file requester menu to choose the first letter of the game you search (it might be useful when you have tons of games in the same folder). Entering several time the same letter let you choose sequentially files beginning with the given letter. You can use the Run key of the virtual keyboard to launch the rom. CHEAT CODE (.CHT) ---------- You can use cheat codes with PSP-7800 emulator. You can add your own cheat codes in the cheat.txt file and then import them in the cheat menu. All cheat codes you have specified for a game can be save in a CHT file in 'cht' folder. Those cheat codes would then be automatically loaded when you start the game. The CHT file format is the following : # # Enable, Address, Value, Comment # 1,36f,3,Cheat comment Using the Cheat menu you can search for modified bytes in RAM between current time and the last time you saved the RAM. It might be very usefull to find "poke" address by yourself, monitoring for example life numbers. To find a new "poke address" you can proceed as follow : Let's say you're playing Xevious and you want to find the memory address where "number lives" is stored. . Start a new game in Xevious . Enter in the cheat menu. . Choose Save Ram to save initial state of the memory. . Specify the number of lives you want to find in "Scan Old Value" field. (for Xevious the initial lives number is 4) . Go back to the game and loose a life. . Enter in the cheat menu. . Specify the number of lives you want to find in "Scan New Value" field. (for Xevious the lives number is now 3) . In Add Cheat you have now one matching Address (for Xevious it's 1A6E) . Specify the Poke value you want (for example 4) and add a new cheat with this address / value. The cheat is now activated in the cheat list and you can save it using the "Save cheat" menu. Let's enjoy Xevious with infinite life !! COMMENTS ------------ You can write your own comments for games using the "Comment" menu. The first line of your comments would then be displayed in the file requester menu while selecting the given file name (roms, keyboard, settings). SETTINGS ------------ You can modify several settings value in the settings menu of this emulator. The following parameters are available : Sound enable : enable or disable the sound Display fps : display real time fps value Speed limiter : limit the speed to a given fps value Skip frame : to skip frame and increase emulator speed Render mode : many render modes are available with different geometry that should covered all games requirements Delta Y : move the center of the screen vertically Vsync : wait for vertical signal between each frame displayed Swap Analog/Cursor : swap key mapping between PSP analog pad and PSP digital pad Active Joystick : Joystick player, it could be 1 or 2 Auto fire period : auto fire period Auto fire mode : auto fire mode active or not Display LR led : draw a small blue rectangle in top of the screen when trigger keys are pressed Clock frequency : PSP clock frequency, by default the value is set to 222Mhz, and should be enough for most of all games. Enjoy, Zx