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Posted: Mon May 18, 2009 10:46 am
by raz0red
A port of the ProSystem (Atari 7800) emulator for the Wii.

Current production release (v0.5): ... (Binaries) (Source)

Wiki (Wiibrew):

Code: Select all

Wii7800 v0.5 release README

Ported by raz0red []

What is Wii7800?

Wii7800 is a port of the ProSystem emulator developed by Greg Stanton. 
Additional changes developed by Ludovic Jacomme aka Zx-81 (PSP port), Leonis,
and gdement. Portions of the Pokey code were adapted from the MAME 


Current status

Wii7800 is an ongoing work in progress. For the latest project information
please visit the following URL:


Known issues

    - High Score cartridge is only compatible with NTSC games.


To install Wii7800, simply extract the zip file directly to your SD card 
or USB device (retain the hierarchical structure exactly).

Lightgun Accuracy, etc.

The crosshair for the Wii7800 emulator is not perfect. For example, you 
may be pointing at something and your shot may register slightly to the 
right or left.

Cartridge Database 

Wii7800 ships with a database that contains recommended settings for the 
majority of commercial and a limited number of homebrew cartridges. These
settings cover control settings, difficulty switch settings, and 
cartridge-related settings (cartridge type, Pokey support, XM support, 
high score cart support, etc.).

To view/edit the settings applied for a particular cartridge perform the
following steps:

  * Load the cartridge (via the "Load cartridge" menu item)
  * Return to the Wii7800 menu
  * Select the "Cartridge-specific settings" menu item
  * View/edit the settings for the cartridge 

Some settings will not be applied until the settings are saved and the 
cartridge is reloaded. When one of these settings is modified, a message
will be displayed indicating that this particular setting requires the 
cartridge to be reloaded (and the settings saved prior to loading).

Other settings, such as difficulty switch and control settings may not
be applied until the cartridge is reset (or reloaded). 

Cartridge/ROM Compatibility 

To find out if a particular cartridge/ROM is compatible with Wii7800, please
refer to the following page. 


Note: There are many dumps of ROMs that are incompatible with Wii7800. 
However, there is typically a dump of the cartridge that does work. 
This page contains a list of compatible ROMs by "hash code".


    Wii7800 menu:


            Up/Down  : Scroll
            A        : Select 
            B        : Back
            Home     : Exit to Homebrew Channel
            Power    : Power off

         Classic controller:

            Up/Down  : Scroll
            A        : Select 
            B        : Back
            Home     : Exit to Homebrew Channel
         Nunchuk controller:

            Up/Down  : Scroll
            C        : Select 
            Z        : Back
         GameCube controller:

            Up/Down  : Scroll
            A        : Select 
            B        : Back
            Z        : Exit to Homebrew Channel
    In-game (Joystick):


            D-pad          : Move
            2              : Fire 1
            1              : Fire 2
            +              : [Reset]
            -              : [Select]
            A              : Left difficulty (if enabled)
            B              : Right difficulty (if enabled)
            Home           : Display Wii7800 menu (see above)

         Classic controller:

            D-pad/Analog   : Move
            Right analog   : Dual analog (if enabled)
            A              : Fire 1
            B              : Fire 2
            +              : [Reset]
            -              : [Select]
            ZL/ZR Trigger  : [Pause]
            L Trigger      : Left difficulty (if enabled)
            R Trigger      : Right difficulty (if enabled)
            Home           : Display Wii7800 menu (see above)
         Nunchuk controller:

            Analog         : Move
            C              : Fire 1
            Z              : Fire 2
         GameCube controller:

            D-pad/Analog   : Move
            C Analog       : Dual analog (if enabled)
            A              : Fire 1
            B              : Fire 2
            Start          : [Reset]
            L Trigger      : [Select]
            R Trigger      : [Pause]
            Y              : Left difficulty (if enabled)
            X              : Right difficulty (if enabled)
            Z              : Display Wii7800 menu (see above)
    In-game (Lightgun):


            Wiimote IR     : Move
            A/B            : Fire 1
            +              : [Reset]
            -              : [Select]
            1              : Left difficulty (if enabled)
            2              : Right difficulty (if enabled)
            Home           : Display Wii7800 menu (see above)

SMB (Network support)	

Wii7800 allows for loading ROMs over the network via SMB. To enable SMB	
support, you must edit the "wii7800.conf" file located in the "/wii7800"	
directory and provide values for the following:	

 * share_ip    : IP address of the computer to connect to.	
 * share_name  : Name of the share on the computer.	
 * share_user  : Name of the user to connect as	
 * share_pass  : Password for the user            
Wii7800 crashes, code dumps, etc.

If you are having issues with Wii7800, please let me know about it via one of 
the following locations:


Special thanks

NeoRame          : Icon
munky6           : Lead tester
Curt Vendel      : Granting permission to use the High Score ROM
GroovyBee        : Technical assistance
mimo             : Testing
Tantric/eke-eke  : Audio code example
Tantric          : Huge improvements to the SDL
Team Twiizers    : For enabling homebrew

Change log

03/24/20 (0.5)
  - Partial Expansion Module (XM) support
    - XRAM
    - XPokey (limited to single Pokey)
  - Added support for cartridges with sizes greater than 144k
  - Additional bank switching modes and cartridge types
  - Multiple bank switching fixes
  - Reworked cartridge header detection
    - Now properly detects bank switching, RAM, etc.
    - Detects Expansion Module (XM)
    - Detects High score cartridge
    - Detects Pokey at $0450
  - Cartridge database 
    - Added ability to edit cartridge database settings via menu
    - Added several new cartridge properties
      - Pokey at $0450
      - Default difficulty switch settings
      - Expansion Module (XM) enabled/disabled
      - High score cartridge enabled/disabled
    - Database content
      - Fixed incorrect controller settings for Sirius, Crossbow, 
          and Alien Brigade
      - Added many homebrew cartridges
  - Display enhancements
    - Double strike (240p)
    - GX+VI mode
    - 16:9 correction
    - Full widescreen support      
    - Ability to enable/disable bilinear filter (GX mode)
    - Color trap filter
    - Multiple default screen sizes
  - Hierarchical file navigation support
  - USB Support
  - SMB (Network support) for loading ROMs  
  - Multi-save slot support
  - Reworked menu system (cartridge-specific settings, etc.)
  - Support for launching via WiiFlow (and returning)
  - Fixed VSYNC issue which caused initial stutter on PAL games
  - Fixed issue occurring when Kangaroo and Holey were enabled (caused 
      background to be displayed, resulting in large black squares)
  - Several audio improvements (eliminated majority of TIA and Pokey pops)

11/16/19 (0.4)
    - Reworked audio integration (resolves audio clipping and pops)
    - Refactored project layout. Now includes third party libraries, which
        should reduce effort to build against latest devkitPro releases
    - Updated to latest versions of devkitPPC (r34) and libogc (1.8.23)
    - Merged PR#7 by arocchi
        Fixes to make wii7800 work with latest DevKit
    - Merged PR#3 by clobber
        Fix bit shift overflow when reading cartridge size from header
    - Merged PR#2 by clobber
        Update internal ROM database
    - Merged PR#1 by clobber
        Correctly load supergame cart types

03/29/10 (0.3)
    - GX based scaler (smoother scrolling in Plutos, Xevious, Motor Psycho)
    - Ability to adjust screen size to any size/dimensions via the
        "Screen Size" option under "Display". If this is entered after 
        loading a cartridge, the last frame will be displayed to assist in 
    - Fixed graphical glitches in Ballblazer
    - Implemented RANDOM (read) and SKCTLS (write) for Pokey sound emulation
        - Ballblazer now plays all sounds
    - Minor refactor of Pokey code
    - Some minor adjustments to the Light Gun related code
    - Updated palette (from Underball)
    - Updated menu code, GX rendering of dip switches and debug information
    - Ability to set HBLANK period, Dual-analog support in ProSystem database

06/29/09 (0.2)
    - Lightgun support 
    - High score cartridge support
    - Increased accuracy of Maria cycle timing, games now run at close to 
        their intended speed (One on One, Tower Toppler, Summer Games, 
        KLAX, Karateka, etc.)
    - Increased compatibility for PAL games (Ballblazer, Commando, and Food 
        Fight now work)    
    - Audio now sounds as it should regardless of frequency (PAL games and 
        custom frame rates)
    - Timers now properly take into consideration cycles generated via Maria 
        and during WSYNC
    - Changes to ProSystem database format
        - Maria cycles are now enabled by default (option 0x1 now disables
            Maria, the opposite of before)
        - Ability to adjust the lightgun crosshair offset per game
    - All games now have Maria cycles and WSYNC enabled in the ProSystem 
        database (with the exception of MIA)    
    - Console switch defaults updated to work with the majority of games
    - Additions to debug output (Maria vs. CPU cycles, timer info, etc.)
    - Other games improved by various changes
        - Kung Fu Master no longer has the lines in the upper left corner of
            display and the Fuji logo appears as it should (if using BIOS)
        - Midnight Mutants has less graphical glitches
        - Summer Games has less graphical glitches
        - Plutos has slightly less graphical glitches
    - Fixed save/restore state issue for games that use RIOT timers.        
05/26/09 (0.1)
    - Snapshot support, including auto-load/auto-save
    - Optional loading of 7800 BIOS
    - Support for ProSystem emulator database
    - Detects and configures controls for one and two button 7800 games
    - Controls support for Wiimote/Nunchuk/Classic/Gamecube controllers
    - Analog controls support
    - Dual analog support for Gamecube/Classic controllers (Robotron)

Posted: Sun May 24, 2009 8:57 pm
by Ebf18
Good to hear Raz, looking forward to testing it and thanks :D

Posted: Tue May 26, 2009 10:10 pm
by raz0red
Released 0.1. (see first post)


Posted: Wed May 27, 2009 7:19 am
by Ebf18
Thanks much Raz :)

Posted: Wed May 27, 2009 8:00 pm
by ajrosner68
From what I've played, it rocks... Good work. :D

Posted: Thu May 28, 2009 6:32 am
by raz0red
Thanks for the kind words guys.

If you are having issues with ROMs loading, etc. make sure to check out the following page:

Wii7800 Cartridge Compatibility

It appears there are a lot of bad dumps (or dumps that don't work with the emulator due to an improper header, lack of database entry, etc.). But, the vast majority of cartridges do work with the emulator. In fact the only one I haven't been able to find a working version for is the "32 in 1" cartridge.


Posted: Thu May 28, 2009 7:59 am
by raz0red
Robotron, dual analog (Gamecube Controller)

388,225 / Wave 16 on Advanced

Can you beat it? :D


Posted: Mon Jun 29, 2009 9:40 pm
by raz0red
Just released 0.2.


Posted: Tue Jun 30, 2009 7:31 am
by Ebf18
Thank you sir. :D

Posted: Mon Mar 29, 2010 1:07 pm
by raz0red
Just released 0.3.


Re: Wii7800

Posted: Sat Nov 16, 2019 10:20 am
by raz0red
Just released 0.4


Re: Wii7800

Posted: Tue Mar 24, 2020 8:21 pm
by raz0red

Re: Wii7800

Posted: Thu Mar 26, 2020 2:20 pm
by mastershoes
Thanks! :)

Re: Wii7800

Posted: Fri Mar 27, 2020 1:20 pm
by raz0red
No problem! Sorry this update took so long to release...