Xe User's Manual

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Table of Contents

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1: Introduction

1.1: About

1.2: Definitions

1.3: Machine Names

2: Installation

2.1: Requirements

2.2: Simple Install

2.3: Manual Install

3: File Information

3.1: Special Files

3.2: rc Files

3.3: gzip Compressed Files

3.4: zip Compressed Files

3.5: CD Image File Format

3.6: Neo Geo ROM Image File Format

3.7: CPS Changer ROM Image File Format

4: Command Line

4.1: Command Line Options

5: Changing Machines

5.1: Start Machine

5.2: Stop Machine

6: Changing Media

6.1: Load ROM

6.2: Insert Cartridge 1

6.3: Remove Cartridge 1

6.4: Insert Cartridge 2

6.5: Remove Cartridge 2

6.6: Insert Floppy Disk

6.7: Remove Floppy Disk

6.8: Insert Compact Disc

6.9: Remove Compact Disc

6.10: Open Tray

6.11: Close Tray

6.12: Insert Unknown Image

7: Screen Shot

7.1: Saving Screen Shots

8: Exit

8.1: Exiting

9: Configuring Video

9.1: Render

9.2: Aspect

9.3: Soft Zoom

9.4: Window Size

9.5: Full Screen Size

9.6: Auto Shrink

9.7: Auto Fill

9.8: Horizontal Overscan

9.9: Vertical Overscan

9.10: Rotate Screen

9.11: Full Screen

10: Configuring Audio

10.1: Sample Rate

10.2: Channels

10.3: Mute

10.4: Lock

10.5: Visualizer

10.6: Sound

11: Configuring Input

11.1: Enable Keyboard

11.2: Enable Joystick 1

11.3: Enable Joystick 2

11.4: Enable Joystick 3

11.5: Enable Joystick 4

11.6: Enable Joystick 5

11.7: Enable Joystick 6

11.8: Mouse Player Select

11.9: Enable Mouse

12: Menu Controls

12.1: Menu Bar

12.2: Control Bar

12.3: Status Bar

13: Settings

13.1: Settings

13.2: Keyboard

13.3: Joystick

13.4: Mouse

13.5: Options

13.6: Adding Extensions

14: Emulator Controls

14.1: Options

14.2: Reset

14.3: Restart

14.4: Pause

14.5: Speed Control

14.6: Playback

14.7: Load State

14.8: Save State

15: Help

15.1: Help

15.2: About

16: Machines

16.1: SG-1000

16.2: Famicom

16.3: Mark III

16.4: PC Engine

16.5: Mega Drive

16.6: Super Famicom

16.7: Neo Geo

16.8: Neo Geo CD

16.9: CPS Changer

16.10: FM-Towns Marty

16.11: PC-FX

16.12: Game Boy

16.13: Game Gear

16.14: Neo Geo Pocket

16.15: Wonder Swan

16.16: Game Boy Advance

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1 Introduction

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• Machine / Module: Also known as a plug-in. In Xe, it is the machine emulator. For example, the 'superfamicom' module is the machine emulator for 'Super Famicom'.
• Cartridge / ROM image: Also known as ROM. A copy of ROM chip(s) stored in a file.
• CD / Disc image: A copy of a CD-ROM disc stored in a file.
• Floppy / Disk image: a copy of a floppy disk stored in a file.
• RAM Cartridge / Memory Card: NVRAM (Battery SRAM, EEPROM, Flash ...) image stored in a file.
• Data Disk: Same as Floppy images except original image will be overwritten.

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2 Installation

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1. login as root
2. 'make' to link the software
3. 'make install' will install it to the system directory

1. login as root
2. 'make' to link the software
3. 'mkdir /usr/local/lib/xe' to create system directory
4. 'mv xe rc modules manual.html /usr/local/lib/xe' to move files to system directory
5. 'ln -sf /usr/local/lib/xe/xe /usr/local/bin/xe' to link binary into system path

1. 'make' to link the software
2. 'mkdir ~/.xe' to create local directory
3. 'mv xe rc modules manual.html ~/.xe' to move files to local directory
4. link or move ~/.xe/xe' to your local bin directory

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3 File Information

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• Special files other than Backup RAM files could be stored in either the system directory or the user directory.
• If BIOS files of the same name are stored in both the system and user directory, the file stored in the user directory is used.
• If the Wallpaper file (xe.bg) is stored in both the system and user directory, the file stored in the user directory is used.
• The system configuration files is loaded before the user configuration file.
• The Wallpaper will be displayed when no machines are loaded.

• rc files contain configuration information.
• rc files are stored in either the system directory or the user directory.
• The system rc file is xerc. It is loaded when Xe is started and saved when Xe is stopped.
• The machine rc files contain keyboard, joystick and mouse configurations of a individual machine. For example, the pcengine rc file is pcenginerc. It is loaded when a machine is started and saved when the machine is stopped.
• The gtk theme file is gtkrc. It is loaded when Xe is started

• ROMs, BIOS, backup RAM, floppy and CD image files could be compressed using gzip.
• Backup RAM files are saved in gzip compressed format.
• If both the compressed (.gz) file and the uncompressed file exist, the uncompressed file is used.
• If compressed, the file must end in .gz, including BIOS files.

• Unlike gzip, Only zipped ROMs and floppy images are supported.
• BIOS, Backup RAM & CD images are not supported if zipped.
• Only the first entry in the zip file is used.

• 68K ROM is stored in big-endian format
• SPR ROM is stored as Plane1, Plane 0, Plane 3, Plane 2. (Same format used by Neo CD)

• 68K ROM is stored in big-endian format

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4 Command Line

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5 Changing Machines

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1. Select 'File' from the menu bar
2. Select 'Start Machine'
3. Select the machine to load

• The inserted cart, floppy or disc will not be affected.
• RAM Cartridges / Memory Cards that was last used will be auto inserted if the cartridge slot is empty.
• This option is usually used to start a machine without any cart, floppy or disc inserted. It is much easier to use the Load ROM, Insert Cartridge 1, Insert Cartridge 2, Insert Floppy Disk or Insert Compact Disc option to start a machine with a game.
  
  

1. Select 'File' from the menu bar
2. Select 'Stop Machine'

• The inserted Cart, Floppy and Discs will be removed.
• RAM Cartridges / Memory Cards will be auto removed and auto inserted when the same machine is started again.

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6 Changing Media

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1. Select 'File' from the menu bar
2. Select 'Load ROM'
3. Select ROM, Floppy or CD Image

• ROM and Disc images could also be inserted using 6.2 Insert Cartridge 1, 6.4 Insert Floppy Disk or 6.8 Insert Compact Disc
• Image could not be inserted to Cartridge Slot 2, using this option.
• Unknown extensions are treated the same as in 6.12 Insert Unknown Image.
• The currently inserted cartridge, floppy or disc will be removed.
• If a machine is currently running it will be stopped and a machine will be auto selected and started.

1. Select 'File' from the menu bar
2. Select 'Insert Cartridge 1'
3. Select the ROM image to load

• Image: Input image file or click on the ... button to select a image file. If inserting RAM Cartridge / Memory Card, non-existent files will be created.
• Machine: Select the machine to use for the image. Use '[Auto Select]' to automatically select a machine. Use '[Current]' to select the current machine.
• Media: Select ROM or RAM Cartridge / Memory Card.
• Save extension: The file extension will be used to select this machine in the future.
• Write Protect: Writes to RAM Cartridge / Memory Card will be disabled.

• RAM Cartridges are same as Memory Cards. /: Permission denied.
• ROM images could also be inserted using 6.1 Load ROM
• If inserting a ROM Cartridge and a machine is currently running, it will be stopped and the selected machine will be started.

1. Select 'File' from the menu bar
2. Select 'Remove Cartridge 1'

• If removing a ROM Cartridge and a machine is currently running, it will be stopped.

1. Select 'File' from the menu bar
2. Select 'Insert Cartridge 2'
3. Select the ROM image to load

• Options are same as 6.2 Insert Cartridge 1.

1. Select 'File' from the menu bar
2. Select 'Remove Cartridge 2'

• Options are same as 6.3 Remove Cartridge 1.

1. Select 'File' from the menu bar
2. Select 'Insert Floppy disk'
3. Select the Floppy image to load

• Image: Input Floppy image file, or click on the ... button to select a Floppy image file. If inserting a Data Disk, non-existent files will be created.
• Machine: Select the machine to use for the Floppy image. Use '[Auto Select]' to automatically select a machine. Use '[Current]' to select the current machine.
• Media: Select System or Data Disk.
• Side: Select Side A or Side B.
• Save extension: The file extension will be used to select this machine in the future.
• Write Protect: Writes to the floppy disk will be disabled.

• Data Disks will be overwritten, System disks will store changes in a save file and the original image will not be modified.
• Data Disks can not be used to auto select machines. The option [Auto Select] will always select the current machine.
• Floppy images could also be inserted using 6.1 Load ROM
• If a machine is currently running and a floppy image is inserted, it will be stopped and the selected machine will be started.

1. Select 'File' from the menu bar
2. Select 'Remove Floppy Disk'

1. Select 'File' from the menu bar
2. Select 'Insert Compact Disc'
3. Select the CD image to load

• Image: Input Disc image file, or click on the ... button to select a CD image file.
• Machine: Select the machine to use for the Disc image. Use '[Auto Select]' to automatically select a machine. Use '[Current]' to select the current machine.
• Media: Select Image or CD-ROM drive.
• Save extension: The file extension will be used to select this machine in the future.
• Enable cache: Sectors are cached to memory as they are accessed.

• CD images could also be inserted using 6.1 Load ROM
• If the tray is closed, the current machine will be stopped and the selected machine will be started.

1. Select 'File' from the menu bar
2. Select 'Remove Cartridge'

• If the tray is closed, the tray will be opened.

1. Select 'File' from the menu bar
2. Select 'Open Tray'

• This option only affects the emulated machine. It has no effect with the physical disc drive.

1. Select 'File' from the menu bar
2. Select 'Close Tray'

• This option only affects the emulated machine. It has no effect with the physical disc drive.

1. Type 'xe unknown.ext' from the command line. Where file unknown.ext is the file name.
2. Select options in the new window.

• Image: The image name.
• Machine: The machine to use for the image. Use '[Current]' to select current machine.
• Media: Select the image type, Cart, Floppy or CD image.
• Save extension: The file extension will be used to select this machine in the future.

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7 Screen Shot

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1. Select 'File' from the menu bar
2. Select 'Save Screen Shot'

• The image will be save in PNG format.

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8 Exit

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1. Select 'File' from the menu bar
2. Select 'Exit'

• The system configuration file (xerc) is updated when Xe exits.

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9 Configuring Video

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1. Select 'Edit' from the menu bar
2. Select 'Video'
3. Select 'Render'

• Software [Shift+X]: The default render using software to display video.
• Hardware RGB [Shift+V]: This render uses the video card to display video. It is much faster than the standard software render. Not all systems support Hardware RGB.
• Hardware YUV [Shift+Y]: This render uses the video card to display video. It is much faster than the standard software render. Not all systems support Hardware YUV.

1. Select 'Edit' from the menu bar
2. Select 'Video'
3. Select 'Aspect'

• None [Shift+N]: Video is displayed using the size of the video window.
• Pixel [Shift+P]: Video is displayed using the aspect of the image.
• Normal [Shift+R]: Video is displayed like on television, using the aspect of 4x3.
• Wide [Shift+W]: Video is displayed like on television, using the aspect of 16x9.
• Zoom [Shift+Z]: Video is displayed like on television, using the aspect of 16x9 with image aspect 4:3.
• Auto [Shift+A]: Aspect is automatically selected depending on machine. Machines that use television will use 4x3 aspect and machines that use LCD screens will use pixel aspect. If no machine is loaded, then aspect none will be used.

1. Select 'Edit' from the menu bar
2. Select 'Video'
3. Select 'Soft Zoom'

• 1x1 [Shift+F1]: No Change to video image.
• 2x1 [Shift+F2]: 2x horizontal zoom of video image.
• 1x2 [Shift+F3]: 2x vertical zoom of video image.
• 2x2 [Shift+F4]: 2x zoom of video image.
• Auto [Shift+F5]: Automatically determine zoom type from image size and window size.

• This option will improve picture quality of low resolution images. This option is only useful while using the Hardware RGB or Hardware YUV render.

1. Select 'Edit' from the menu bar
2. Select 'Video'
3. Select 'Window Size'

• Minimum [Shift+F7]: Minimum window size is the size of the video image.
• Custom [Shift+F8]: Minimum window size determined by custom settings .

• To set Custom Window size, see 13.5 Options.

1. Select 'Edit' from the menu bar
2. Select 'Video'
3. Select 'Full Screen Size'

• Minimum [Shift+F9]: Full Screen uses smallest resolution able to fit the video image.
• Full [Shift+F10]: Full Screen uses Current resolution.
• Maximum [Shift+F11]: Full Screen uses all screens.
• Custom [Shift+F12]: Full Screen uses custom settings.

• Enabling Menu Bar, Control Bar or any dialogs while in Minimum or Custom Full Screen mode will also change the current display to Window mode.
• Minimum, Custom and Maximum modes may not be available on all systems.
• To set Custom Full Screen size, see 13.5 Options.

1. Select 'Edit' from the menu bar
2. Select 'Video'
3. Select 'Auto Shrink'

• enabled: Empty spaces will be removed when the screen is resized.
• disabled: Empty spaces will not be affected when the screen is resized.

1. Select 'Edit' from the menu bar
2. Select 'Video'
3. Select 'Auto Fill'

• enabled: Screen will be expanded to fill the window.
• disabled: Screen will not be expanded to fill the window.

1. Select 'Edit' from the menu bar
2. Select 'Video'
3. Select 'Horizontal Overscan'

• enabled: The screen will display the entire horizontal active scan area.
• disabled: The screen will display only the horizontal vertical display area.

• The overscan area contains either black, a solid color, garbage or graphics.
• Vertical Overscan could only be used if the machine uses a non-LCD type display.

1. Select 'Edit' from the menu bar
2. Select 'Video'
3. Select 'Vertical Overscan'

• enabled: The screen will display the entire vertical active scan area.
• disabled: The screen will display only the visible vertical display area.

• The overscan area contains either black, a solid color, garbage or graphics.
• Vertical Overscan could only be used if the machine uses a non-LCD type display.

1. Select 'Edit' from the menu bar
2. Select 'Video'
3. Select 'Rotate Screen'

• enabled: The screen will be rotated 90 degrees counter clockwise.
• disabled: The screen will be displayed normally.

1. Select 'Edit' from the menu bar
2. Select 'Video'
3. Select 'Full Screen'

• enabled: Display video using the whole screen.
• disabled: Display video in a window.

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10 Configuring Audio

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1. Select 'Edit' from the menu bar
2. Select 'Audio'
3. Select 'Sample Rate'

• Auto [Ctrl+F7]: Sample rate is automatically selected.
• Custom [Ctrl+F8]: Custom sample rate will be used. This option will not affect internal sample rate and should not be used unless the sound card is not not working properly with automatically selected sample rate.

• This option is only available if Sound is enabled.
• To set Custom Sample Rate, see 13.5 Options.

1. Select 'Edit' from the menu bar
2. Select 'Audio'
3. Select 'Channels'

• Mono [Ctrl+F9]: Mono sound will be output to both the left and right channels.
• Stereo [Ctrl+F10]: Stereo sound output to the left and right channels.

• This option is only available if Sound is enabled.

1. Select 'Edit' from the menu bar
2. Select 'Audio'
3. Select 'Mute'

• enabled: No sound is output.
• disabled: Sound is output normally.

• This option is only available if Sound is enabled.

1. Select 'Edit' from the menu bar
2. Select 'Audio'
3. Select 'Lock'

• enabled: Lock left and right mixer controls together.
• disabled: Do not lock left and right mixer controls.

• See the Control Bar section for Mixer controls.
• This option is only available if Sound is enabled.

1. Select 'Edit' from the menu bar
2. Select 'Audio'
3. Select 'Visualizer'

• enabled: The Visualizer will be displayed over the screen.
• disabled: The Visualizer will be disabled.

• The red line is the Left Channel.
• The green line is the Right Channel.
• The white line is when the Left and Right Channel are at the same level (Mono).
• This option is only available if Sound is enabled.

1. Select 'Edit' from the menu bar
2. Select 'Audio'
3. Select 'Sound'

• enabled: Sound Card is used.
• disabled: Sound Card is not used.

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11 Configuring Input

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1. Select 'Edit' from the menu bar
2. Select 'Input'
3. Select 'Keyboard'
4. Select 'Enable Keyboard'

• enabled: Accept keyboard input.
• disabled: Keyboard input is ignored.

• To configure keyboard keys, see 13.2 Keyboard.

1. Select 'Edit' from the menu bar
2. Select 'Input'
3. Select 'Joystick'
4. Select 'Enable Joystick 1'

• enabled: Accept joystick input.
• disabled: Joystick input is ignored.

• To configure joystick buttons, see 13.3 Joystick.

1. Select 'Edit' from the menu bar
2. Select 'Input'
3. Select 'Mouse'

• Player 1 [Alt+1]: Map mouse to Player 1.
• Player 2 [Alt+2]: Map mouse to Player 2.
• Player 3 [Alt+3]: Map mouse to Player 3.
• Player 4 [Alt+4]: Map mouse to Player 4.
• Player 5 [Alt+5]: Map mouse to Player 5.
• Player 6 [Alt+6]: Map mouse to Player 6.

• Only one player can use the mouse at any given time.
• The Mouse must be enabled before it could be used.
• To configure joystick buttons, see 13.4 Mouse.

1. Select 'Edit' from the menu bar
2. Select 'Input'
3. Select 'Mouse'
4. Select 'Enable Mouse'

• enabled: Accept mouse input.
• disabled: Mouse input is ignored.

• When Mouse is enabled, the mouse could not be used for the UI or the OS.
• To configure mouse buttons, see 13.4 Mouse.

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12 Menu Controls

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1. Select 'Edit' from the menu bar
2. Select 'Menu Bar'

• enabled: The menu bar will be displayed. Enabling this option while in Minimum or Custom Full Screen mode will also change the current display to Window mode.
• disabled: The menu bar will not be displayed. Disabling this option has no effect on the current Display mode.

1. Select 'Edit' from the menu bar
2. Select 'Control Bar'

• enabled: The control bar will be displayed. Enabling this option while in Minimum or Custom Full Screen mode will also change the current display to Window mode.
• disabled: The control bar will not be displayed. Disabling this option has no effect on the current Display mode.

• Rewind (or key '<'): Rewind gameplay up to the point of recorded Playback start. If machine is paused, step back one saved frame.
• Play: Resume play if the machine is paused.
• Pause: Pause the machine if machine is running and resume play if the machine is paused.
• Stop: The machine will be reset and paused.
• Forward (or key '>'): Fast Forward the gameplay up to the point of recorded Playback end. If machine is paused, step forward one saved frame.

• Left and Right volume could be adjusted independently if the Lock option is disabled.

• The Playback buttons are only displayed when Playback is enabled.
• To configure Playback, see 13.5 Options.
• To lock the Mixer, see 10.4 Lock.

1. Select 'Edit' from the menu bar
2. Select 'Status Bar'

• enabled: The status bar will be displayed.
• disabled: The status bar will not be displayed.

• Box 1: The currently running machine
• Box 2: The currently inserted Cartridge / RAM Cartridge / Memory Card in slot 1
• Box 3: The currently inserted Cartridge / RAM Cartridge / Memory Card in slot 2
• Box 4: The currently inserted Floppy Disk
• Box 5: The currently inserted Compact Disc
• Box 6: Frame Rate

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13 Settings

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1. Select 'Edit' from the menu bar
2. Select 'Settings'

1. Select 'Edit' from the menu bar
2. Select 'Settings'
3. Select 'Keyboard' tab
4. Select 'Player 1/2/3/4/5/6' tab

• Configuring input when no machines are loaded will configure the default input.
• Configuring input when a machine is loaded will configure input for that machine.
• To change a key, simply click on the box of the button.
• To unbind a key, click on the box of the button and press 'Escape'.

1. Select 'Edit' from the menu bar
2. Select 'Settings'
3. Select 'Joystick' tab
4. Select 'Player 1/2/3/4/5/6' tab

• Configuring input when no machines are loaded will configure the default input.
• Configuring input when a machine is loaded will configure input for that machine.
• To change an axis or buttons, simply click on the box of the button and press desired joystick button or axis. Joystick must be enabled.
• To unbind a axis or button, click on the box of the button and press 'Escape'.
• A + or - indicates an axis.

1. Select 'Edit' from the menu bar
2. Select 'Settings'
3. Select 'Mouse' tab

• Configuring input when no machines are loaded will configure the default input.
• Configuring input when a machine is loaded will configure input for that machine.
• To change buttons, simply click on the box of the button and press the desired mouse button.
• To unbind a button, click on the box of the button and press 'Escape'.

1. Select 'Edit' from the menu bar
2. Select 'Settings'
3. Select 'Options' tab

• Custom Window Size: Select the size of the Custom Window. See 9.4 Window Mode.
• Custom Screen Size: Select the size of the Custom Screen. See 9.5 Full Screen Mode.
• Custom Sample Rate: Select the size of the Custom Sample Rate. See 10.1 Sample Rate.
• Playback Rate: Select the Playback Rate. See 14.6 Playback.
• Playback Memory: Select the maximum Playback memory usage. See 14.6 Playback.
• Playback Time: The maximum playback time for the current machine (Time will vary depending on settings and machine). See 14.6 Playback.
• Custom Sample Rate: Select the size of the Custom Sample Rate. See 10.1 Sample Rate.
• CD-ROM: Select the CD-ROM drive device file or 'default' to use '/dev/cdrom'.
• Sound Card: Select the sound card device file or 'default' to use 'ALSA default'.
• Joystick 1: Select the joystick 1 device file or 'default' to use '/dev/input/js0'.
• Joystick 2: Select the joystick 2 device file or 'default' to use '/dev/input/js1'.
• Joystick 3: Select the joystick 2 device file or 'default' to use '/dev/input/js2'.
• Joystick 4: Select the joystick 2 device file or 'default' to use '/dev/input/js3'.
• Joystick 5: Select the joystick 2 device file or 'default' to use '/dev/input/js4'.
• Joystick 6: Select the joystick 2 device file or 'default' to use '/dev/input/js5'.

1. Select 'Edit' from the menu bar
2. Select 'Settings'
3. Select 'Machines' tab

• Extension: File type extension to be added.
• Media: File type is Cartridge, Floppy Disk or Compact Disk.
• Machine: The machine to use for this extension.

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14 Emulator Controls

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1. Select 'Machine' from the menu bar
2. Select 'Options'

• Japan [Ctrl+J]: Machine will use region Japan.
• USA [Ctrl+U]: Machine will use region USA.
• Europe [Ctrl+E]: Machine will use region Europe.
• Mode (machine specific): Select machine mode.
• Cartridge Port 1 (machine specific): Select expansion device connected to cartridge port 1.
• Cartridge Port 2 (machine specific): Select expansion device connected to cartridge port 1.
• Expansion Port 1 (machine specific): Select expansion device connected to expansion port 1.
• Expansion Port 2 (machine specific): Select expansion device connected to expansion port 2.
• Input Port 1 (machine specific): Select device connected to input port 1.
• Input Port 2 (machine specific): Select device connected to input port 2.
• Input Port 3 (machine specific): Select device connected to input port 3.
• Input Port 4 (machine specific): Select device connected to input port 4.

• Changes will not take effect until the machine is restarted.
• See the Machines section for machine specific options

1. Select 'Machine' from the menu bar
2. Select 'Reset'

• This options will reset the current machine.

1. Select 'Machine' from the menu bar
2. Select 'Restart'

• This option restarts the current machine. Any changes to machine options will take effect after the restart.

1. Select 'Machine' from the menu bar
2. Select 'Pause'

• This option suspends the current machine. When paused, no CPU time will be used.

1. Select 'Machine' from the menu bar
2. Select 'Speed Control'

• enabled: Machine will run at the correct frame rate.
• disabled: Machine will run at maximum speed.

• This option is only available if Sound is enabled.

1. Select 'Machine' from the menu bar
2. Select 'Playback'

• enabled: Playback will be enabled. Enabling this option while not in Minimum or Custom Full Screen mode will also enable the Control Bar.
• disabled: Playback will be disabled. Disabling this option has no effect on the Control Bar.

• To configure Playback, see 13.5 Options.
• See the Control Bar section for Playback controls.
• Playback will be reset if any Media are changed or the current Machine is stopped.

1. Select 'Machine' from the menu bar
2. Select 'Load State'

• Load States will be lost if any Media are changed or the current Machine is stopped.

1. Select 'Machine' from the menu bar
2. Select 'Save State'

• Save Sates will not be written to disk. If any Media are changed or the current Machine is stopped the state will be lost.

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15 Help

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1. Select 'Help' from the menu bar
2. Select 'Help'

• This option will load this document using the default web browser

1. Select 'Help' from the menu bar
2. Select 'About'

• This option will display the about box.

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16 Machines

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• Card Catcher option is ignored if cartridge is inserted.

• Famicom Disk System option is ignored if cartridge is inserted.
• Japanese multiplayer games may only be compatible with the Multi-Tap with the Region Japan setting.
• US or Europe multiplayer games may only be compatible with the Multi-Tap with the Region US or Europe setting.

• Super Grafx is not 100% compatible with the PC Engine.
• PC Engine CDs requires both a System Card or the Super CD-ROM2 option and a CD or CD Image.
• 3-Button Pad button "III" is mapped to "Run".
• 6-Button Pad may not be compatible with older games.
• Mouse is not compatible with all games.

• 6-Button Pad may not be compatible with older games.
• Mouse is not compatible with all games.

• Mouse is not compatible with all games.

• Neo Geo BIOS must be in big-endian format.
• Only the home system (AES) BIOSs are supported, the arcade system (MVS) BIOSs are not supported.
• ROM image format is described in 3.5 Neo Geo ROM Image File Format.
• To swap the BIOS into big-endian format, use the swab or dd utility. 'swab aes-bios.bin neogeo.rom'.

• Neo Geo CD BIOS must be in big-endian format.
• To swap the BIOS into big-endian format, use the swab utility. 'swab neocd.bin neocd.rom'.
• The Neo CD and CDZ BIOS are not compatible and therefore not interchangeable.

• Only the home console FM-Towns Marty BIOSs are supported, the computer (FM-Towns) BIOSs are not supported.
• FM Town Computer is not 100% compatible with the FM-Towns Marty.
• Some Marty CDs require both a Floppy Disk Image and an CD Image.
• Standard Pad is not compatible with all games (some games only work with the mouse).
• 6-Button Pad is not be compatible with all games.
• Mouse is not compatible with all games.

• Mouse is not compatible with all games.

• Vertical Layout is used when the screen is rotated.