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# Sony PlayStation Documentation

Last updated January 13, 2013
Valid as of 0.9.28-WIP

Table of Contents:

Introduction

Multitap Usage

Settings Reference

## Introduction

PlayStation 1 emulation is currently in a buggy alpha state and not all hardware and features are emulated.

A dual-core Phenom II or Athlon II at 3GHz or higher, or rough equivalent(in terms of single-core IPC), is recommended for running Mednafen's PlayStation 1 emulation on. For better performance, the binary should be compiled for a 64-bit target(for example, x86_64) rather than 32-bit, if available.

PSF1 playback is supported.

## Multitap Usage

By default, no multitap is enabled. Be aware that if you enable multitap on PSX port 1, game view mapping will be inconsistent between games that support multitap and those that do not.

Port Index to Emulated Port Mappings
Port Index: | Emulated PSX Port: | Emulated Multitap Port:
--- | --- | ---
1 | 1 | 1A
2 | 2 | 2A
3 | - | 1B
4 | - | 1C
5 | - | 1D
6 | - | 2B
7 | - | 2C
8 | - | 2D

Port Index to Game View Mappings for Multitap only on PSX Port 1
Port Index: | Multitap-Compatible-Game: | Multitap-Incompatible-Game:
--- | --- | ---
1 | 1 | 1
2 | 5 | 2
3 | 2 | -
4 | 3 | -
5 | 4 | -
6 | - | -
7 | - | -
8 | - | -

Port Index to Game View Mappings for Multitap only on PSX Port 2
Port Index: | Multitap-Compatible-Game: | Multitap-Incompatible-Game:
--- | --- | ---
1 | 1 | 1
2 | 2 | 2
3 | - | -
4 | - | -
5 | - | -
6 | 3 | -
7 | 4 | -
8 | 5 | -

Port Index to Game View Mappings for Multitap on both PSX Ports
Port Index: | Multitap-Compatible-Game: | Multitap-Incompatible-Game:
--- | --- | ---
1 | 1 | 1
2 | 5 | 2
3 | 2 | -
4 | 3 | -
5 | 4 | -
6 | 6 | -
7 | 7 | -
8 | 8 | -

## Settings Reference

Caution: Any settings that change emulation behavior as seen from the emulated game are shown with the setting name bolded in the table. One should be conscious of these settings if one has changed them from the default values when using network play or movies, as they can cause desychronizations if not set the same among hosts(or between the recording emulator and the playing emulator).

Setting: | Value Type: | Possible Values: | Default Value: | Description:
--- | --- | --- | --- | ---
psx.bios_eu | string |  | scph5502.bin | Path to the Europe SCPH-5502 ROM BIOS
psx.bios_jp | string |  | scph5500.bin | Path to the Japan SCPH-5500 ROM BIOS
psx.bios_na | string |  | scph5501.bin | Path to the North America SCPH-5501 ROM BIOS SHA1 0555c6fae8906f3f09baf5988f00e55f88e9f30b
psx.input.analog_mode_ct | boolean | 0 1 | 0 | Enable analog mode combo-button alternate toggle. When enabled, instead of the configured Analog mode toggle button for the emulated DualShock, use a combination of buttons to toggle it instead. When Select, Start, and all four shoulder buttons are held down for about 1 second, the mode will toggle.
psx.input.mouse_sensitivity | real | through | 1.00 | Emulated mouse sensitivity.
psx.input.port1 | enum | none gamepad dualshock dualanalog analogjoy mouse negcon guncon justifier dancepad | gamepad | Input device for Port 1/1A none - none gamepad - Digital Gamepad PlayStation digital gamepad; SCPH-1080. dualshock - DualShock DualShock gamepad; SCPH-1200. Emulation in Mednafen includes the analog mode toggle button. Rumble is emulated, but currently only supported on Linux, and MS Windows via the XInput API and XInput-compatible gamepads/joysticks. If you're having trouble getting rumble to work on Linux, see if Mednafen is printing out error messages during startup regarding /dev/input/event*, and resolve the issue(s) as necessary. dualanalog - Dual Analog Dual Analog gamepad; SCPH-1180. It is the predecessor/prototype to the more advanced DualShock. Emulated in Mednafen as forced to analog mode, and without rumble. analogjoy - Analog Joystick Flight-game-oriented dual-joystick controller; SCPH-1110. Emulated in Mednafen as forced to analog mode. mouse - Mouse negcon - neGcon Namco's unconventional twisty racing-game-oriented gamepad; NPC-101. guncon - GunCon Namco's light gun; NPC-103. justifier - Konami Justifier Konami's light gun; SLUH-00017. Rumored to be wrought of the coagulated rage of all who tried to shoot The Dog. If the game you want to play supports the "GunCon", you should use that instead. NOTE: Currently does not work properly when on any of ports 1B-1D and 2B-2D. dancepad - Dance Pad Dingo Dingo Rodeo!
psx.input.port1.gun_chairs | integer | 0x000000 through 0x1000000 | 0xFF0000 | Crosshairs color for lightgun on port 1/1A. A value of 0x1000000 disables crosshair drawing.
psx.input.port1.memcard | boolean | 0 1 | 1 | Emulate memcard on port 1/1A.
psx.input.port1.multitap | boolean | 0 1 | 0 | Enable multitap on PSX port 1. Makes ports 1B-1D available.
psx.input.port2 | enum | none gamepad dualshock dualanalog analogjoy mouse negcon guncon justifier dancepad | gamepad | Input device for Port 2/2A none - none gamepad - Digital Gamepad PlayStation digital gamepad; SCPH-1080. dualshock - DualShock DualShock gamepad; SCPH-1200. Emulation in Mednafen includes the analog mode toggle button. Rumble is emulated, but currently only supported on Linux, and MS Windows via the XInput API and XInput-compatible gamepads/joysticks. If you're having trouble getting rumble to work on Linux, see if Mednafen is printing out error messages during startup regarding /dev/input/event*, and resolve the issue(s) as necessary. dualanalog - Dual Analog Dual Analog gamepad; SCPH-1180. It is the predecessor/prototype to the more advanced DualShock. Emulated in Mednafen as forced to analog mode, and without rumble. analogjoy - Analog Joystick Flight-game-oriented dual-joystick controller; SCPH-1110. Emulated in Mednafen as forced to analog mode. mouse - Mouse negcon - neGcon Namco's unconventional twisty racing-game-oriented gamepad; NPC-101. guncon - GunCon Namco's light gun; NPC-103. justifier - Konami Justifier Konami's light gun; SLUH-00017. Rumored to be wrought of the coagulated rage of all who tried to shoot The Dog. If the game you want to play supports the "GunCon", you should use that instead. NOTE: Currently does not work properly when on any of ports 1B-1D and 2B-2D. dancepad - Dance Pad Dingo Dingo Rodeo!
psx.input.port2.gun_chairs | integer | 0x000000 through 0x1000000 | 0x00FF00 | Crosshairs color for lightgun on port 2/2A. A value of 0x1000000 disables crosshair drawing.
psx.input.port2.memcard | boolean | 0 1 | 1 | Emulate memcard on port 2/2A.
psx.input.port2.multitap | boolean | 0 1 | 0 | Enable multitap on PSX port 2. Makes ports 2B-2D available.
psx.input.port3 | enum | none gamepad dualshock dualanalog analogjoy mouse negcon guncon justifier dancepad | gamepad | Input device for Port 1B none - none gamepad - Digital Gamepad PlayStation digital gamepad; SCPH-1080. dualshock - DualShock DualShock gamepad; SCPH-1200. Emulation in Mednafen includes the analog mode toggle button. Rumble is emulated, but currently only supported on Linux, and MS Windows via the XInput API and XInput-compatible gamepads/joysticks. If you're having trouble getting rumble to work on Linux, see if Mednafen is printing out error messages during startup regarding /dev/input/event*, and resolve the issue(s) as necessary. dualanalog - Dual Analog Dual Analog gamepad; SCPH-1180. It is the predecessor/prototype to the more advanced DualShock. Emulated in Mednafen as forced to analog mode, and without rumble. analogjoy - Analog Joystick Flight-game-oriented dual-joystick controller; SCPH-1110. Emulated in Mednafen as forced to analog mode. mouse - Mouse negcon - neGcon Namco's unconventional twisty racing-game-oriented gamepad; NPC-101. guncon - GunCon Namco's light gun; NPC-103. justifier - Konami Justifier Konami's light gun; SLUH-00017. Rumored to be wrought of the coagulated rage of all who tried to shoot The Dog. If the game you want to play supports the "GunCon", you should use that instead. NOTE: Currently does not work properly when on any of ports 1B-1D and 2B-2D. dancepad - Dance Pad Dingo Dingo Rodeo!
psx.input.port3.gun_chairs | integer | 0x000000 through 0x1000000 | 0xFF00FF | Crosshairs color for lightgun on port 1B. A value of 0x1000000 disables crosshair drawing.
psx.input.port3.memcard | boolean | 0 1 | 1 | Emulate memcard on port 1B.
psx.input.port4 | enum | none gamepad dualshock dualanalog analogjoy mouse negcon guncon justifier dancepad | gamepad | Input device for Port 1C none - none gamepad - Digital Gamepad PlayStation digital gamepad; SCPH-1080. dualshock - DualShock DualShock gamepad; SCPH-1200. Emulation in Mednafen includes the analog mode toggle button. Rumble is emulated, but currently only supported on Linux, and MS Windows via the XInput API and XInput-compatible gamepads/joysticks. If you're having trouble getting rumble to work on Linux, see if Mednafen is printing out error messages during startup regarding /dev/input/event*, and resolve the issue(s) as necessary. dualanalog - Dual Analog Dual Analog gamepad; SCPH-1180. It is the predecessor/prototype to the more advanced DualShock. Emulated in Mednafen as forced to analog mode, and without rumble. analogjoy - Analog Joystick Flight-game-oriented dual-joystick controller; SCPH-1110. Emulated in Mednafen as forced to analog mode. mouse - Mouse negcon - neGcon Namco's unconventional twisty racing-game-oriented gamepad; NPC-101. guncon - GunCon Namco's light gun; NPC-103. justifier - Konami Justifier Konami's light gun; SLUH-00017. Rumored to be wrought of the coagulated rage of all who tried to shoot The Dog. If the game you want to play supports the "GunCon", you should use that instead. NOTE: Currently does not work properly when on any of ports 1B-1D and 2B-2D. dancepad - Dance Pad Dingo Dingo Rodeo!
psx.input.port4.gun_chairs | integer | 0x000000 through 0x1000000 | 0xFF8000 | Crosshairs color for lightgun on port 1C. A value of 0x1000000 disables crosshair drawing.
psx.input.port4.memcard | boolean | 0 1 | 1 | Emulate memcard on port 1C.
psx.input.port5 | enum | none gamepad dualshock dualanalog analogjoy mouse negcon guncon justifier dancepad | gamepad | Input device for Port 1D none - none gamepad - Digital Gamepad PlayStation digital gamepad; SCPH-1080. dualshock - DualShock DualShock gamepad; SCPH-1200. Emulation in Mednafen includes the analog mode toggle button. Rumble is emulated, but currently only supported on Linux, and MS Windows via the XInput API and XInput-compatible gamepads/joysticks. If you're having trouble getting rumble to work on Linux, see if Mednafen is printing out error messages during startup regarding /dev/input/event*, and resolve the issue(s) as necessary. dualanalog - Dual Analog Dual Analog gamepad; SCPH-1180. It is the predecessor/prototype to the more advanced DualShock. Emulated in Mednafen as forced to analog mode, and without rumble. analogjoy - Analog Joystick Flight-game-oriented dual-joystick controller; SCPH-1110. Emulated in Mednafen as forced to analog mode. mouse - Mouse negcon - neGcon Namco's unconventional twisty racing-game-oriented gamepad; NPC-101. guncon - GunCon Namco's light gun; NPC-103. justifier - Konami Justifier Konami's light gun; SLUH-00017. Rumored to be wrought of the coagulated rage of all who tried to shoot The Dog. If the game you want to play supports the "GunCon", you should use that instead. NOTE: Currently does not work properly when on any of ports 1B-1D and 2B-2D. dancepad - Dance Pad Dingo Dingo Rodeo!
psx.input.port5.gun_chairs | integer | 0x000000 through 0x1000000 | 0xFFFF00 | Crosshairs color for lightgun on port 1D. A value of 0x1000000 disables crosshair drawing.
psx.input.port5.memcard | boolean | 0 1 | 1 | Emulate memcard on port 1D.
psx.input.port6 | enum | none gamepad dualshock dualanalog analogjoy mouse negcon guncon justifier dancepad | gamepad | Input device for Port 2B none - none gamepad - Digital Gamepad PlayStation digital gamepad; SCPH-1080. dualshock - DualShock DualShock gamepad; SCPH-1200. Emulation in Mednafen includes the analog mode toggle button. Rumble is emulated, but currently only supported on Linux, and MS Windows via the XInput API and XInput-compatible gamepads/joysticks. If you're having trouble getting rumble to work on Linux, see if Mednafen is printing out error messages during startup regarding /dev/input/event*, and resolve the issue(s) as necessary. dualanalog - Dual Analog Dual Analog gamepad; SCPH-1180. It is the predecessor/prototype to the more advanced DualShock. Emulated in Mednafen as forced to analog mode, and without rumble. analogjoy - Analog Joystick Flight-game-oriented dual-joystick controller; SCPH-1110. Emulated in Mednafen as forced to analog mode. mouse - Mouse negcon - neGcon Namco's unconventional twisty racing-game-oriented gamepad; NPC-101. guncon - GunCon Namco's light gun; NPC-103. justifier - Konami Justifier Konami's light gun; SLUH-00017. Rumored to be wrought of the coagulated rage of all who tried to shoot The Dog. If the game you want to play supports the "GunCon", you should use that instead. NOTE: Currently does not work properly when on any of ports 1B-1D and 2B-2D. dancepad - Dance Pad Dingo Dingo Rodeo!
psx.input.port6.gun_chairs | integer | 0x000000 through 0x1000000 | 0x00FFFF | Crosshairs color for lightgun on port 2B. A value of 0x1000000 disables crosshair drawing.
psx.input.port6.memcard | boolean | 0 1 | 1 | Emulate memcard on port 2B.
psx.input.port7 | enum | none gamepad dualshock dualanalog analogjoy mouse negcon guncon justifier dancepad | gamepad | Input device for Port 2C none - none gamepad - Digital Gamepad PlayStation digital gamepad; SCPH-1080. dualshock - DualShock DualShock gamepad; SCPH-1200. Emulation in Mednafen includes the analog mode toggle button. Rumble is emulated, but currently only supported on Linux, and MS Windows via the XInput API and XInput-compatible gamepads/joysticks. If you're having trouble getting rumble to work on Linux, see if Mednafen is printing out error messages during startup regarding /dev/input/event*, and resolve the issue(s) as necessary. dualanalog - Dual Analog Dual Analog gamepad; SCPH-1180. It is the predecessor/prototype to the more advanced DualShock. Emulated in Mednafen as forced to analog mode, and without rumble. analogjoy - Analog Joystick Flight-game-oriented dual-joystick controller; SCPH-1110. Emulated in Mednafen as forced to analog mode. mouse - Mouse negcon - neGcon Namco's unconventional twisty racing-game-oriented gamepad; NPC-101. guncon - GunCon Namco's light gun; NPC-103. justifier - Konami Justifier Konami's light gun; SLUH-00017. Rumored to be wrought of the coagulated rage of all who tried to shoot The Dog. If the game you want to play supports the "GunCon", you should use that instead. NOTE: Currently does not work properly when on any of ports 1B-1D and 2B-2D. dancepad - Dance Pad Dingo Dingo Rodeo!
psx.input.port7.gun_chairs | integer | 0x000000 through 0x1000000 | 0x0080FF | Crosshairs color for lightgun on port 2C. A value of 0x1000000 disables crosshair drawing.
psx.input.port7.memcard | boolean | 0 1 | 1 | Emulate memcard on port 2C.
psx.input.port8 | enum | none gamepad dualshock dualanalog analogjoy mouse negcon guncon justifier dancepad | gamepad | Input device for Port 2D none - none gamepad - Digital Gamepad PlayStation digital gamepad; SCPH-1080. dualshock - DualShock DualShock gamepad; SCPH-1200. Emulation in Mednafen includes the analog mode toggle button. Rumble is emulated, but currently only supported on Linux, and MS Windows via the XInput API and XInput-compatible gamepads/joysticks. If you're having trouble getting rumble to work on Linux, see if Mednafen is printing out error messages during startup regarding /dev/input/event*, and resolve the issue(s) as necessary. dualanalog - Dual Analog Dual Analog gamepad; SCPH-1180. It is the predecessor/prototype to the more advanced DualShock. Emulated in Mednafen as forced to analog mode, and without rumble. analogjoy - Analog Joystick Flight-game-oriented dual-joystick controller; SCPH-1110. Emulated in Mednafen as forced to analog mode. mouse - Mouse negcon - neGcon Namco's unconventional twisty racing-game-oriented gamepad; NPC-101. guncon - GunCon Namco's light gun; NPC-103. justifier - Konami Justifier Konami's light gun; SLUH-00017. Rumored to be wrought of the coagulated rage of all who tried to shoot The Dog. If the game you want to play supports the "GunCon", you should use that instead. NOTE: Currently does not work properly when on any of ports 1B-1D and 2B-2D. dancepad - Dance Pad Dingo Dingo Rodeo!
psx.input.port8.gun_chairs | integer | 0x000000 through 0x1000000 | 0x8000FF | Crosshairs color for lightgun on port 2D. A value of 0x1000000 disables crosshair drawing.
psx.input.port8.memcard | boolean | 0 1 | 1 | Emulate memcard on port 2D.
psx.region_autodetect | boolean | 0 1 | 1 | Attempt to auto-detect region of game.
psx.region_default | enum | jp na eu | jp | Default region to use. Used if region autodetection fails or is disabled. jp - Japan na - North America eu - Europe
psx.spu.resamp_quality | integer | 0 through 10 | 5 | SPU output resampler quality. 0 is lowest quality and CPU usage, 10 is highest quality and CPU usage. The resampler that this setting refers to is used for converting from 44.1KHz to the sampling rate of the host audio device Mednafen is using. Changing Mednafen's output rate, via the "sound.rate" setting, to "44100" will bypass the resampler, which will decrease CPU usage by Mednafen, and can increase or decrease audio quality, depending on various operating system and hardware factors.

Setting: | Value Type: | Possible Values: | Default Value: | Description:
--- | --- | --- | --- | ---
psx.debugger.disfontsize | enum | xsmall small medium large | small | Disassembly font size. Note: Setting the font size to larger than the default may cause text overlap in the debugger. xsmall - 4x5 small - 5x7 medium - 6x13 large - 9x18
psx.debugger.memcharenc | string |  | shift_jis | Character encoding for the debugger's memory editor.
psx.enable | boolean | 0 1 | 1 | Enable (automatic) usage of this module.
psx.forcemono | boolean | 0 1 | 0 | Force monophonic sound output.
psx.pixshader | enum | none autoip autoipsharper scale2x sabr ipsharper ipxnoty ipynotx ipxnotysharper ipynotxsharper | none | Enable specified OpenGL pixel shader. Obviously, this will only work with the OpenGL "video.driver" setting, and only on cards and OpenGL implementations that support pixel shaders, otherwise you will get a black screen, or Mednafen may display an error message when starting up. Bilinear interpolation is disabled with pixel shaders, and any interpolation, if present, will be noted in the description of each pixel shader. Note: Mednafen's pixel shaders do not work properly on some AMD graphics cards(there is a diagonal line of distortion) for an unknown reason, possibly a hardware bug. none - None/Disabled autoip - Auto Interpolation Will automatically interpolate on each axis if the corresponding effective scaling factor is not an integer. autoipsharper - Sharper Auto Interpolation Same as "autoip", but when interpolation is done, it is done in a manner that will reduce blurriness if possible. scale2x - Scale2x sabr - SABR v3.0 GPU-intensive. ipsharper - Sharper bilinear interpolation. ipxnoty - Linear interpolation on X axis only. ipynotx - Linear interpolation on Y axis only. ipxnotysharper - Sharper version of "ipxnoty". ipynotxsharper - Sharper version of "ipynotx".
psx.scanlines | integer | 0 through 100 | 0 | Enable scanlines with specified opacity. Opacity is specified in %; IE a value of "100" will give entirely black scanlines.
psx.special | enum | none hq2x hq3x hq4x scale2x scale3x scale4x 2xsai super2xsai supereagle nn2x nn3x nn4x nny2x nny3x nny4x | none | Enable specified special video scaler. The destination rectangle is NOT altered by this setting, so if you have xscale and yscale set to "2", and try to use a 3x scaling filter like hq3x, the image is not going to look that great. The nearest-neighbor scalers are intended for use with bilinear interpolation enabled, at high resolutions(such as 1280x1024; nn2x(or nny2x) + bilinear interpolation + fullscreen stretching at this resolution looks quite nice). none - None/Disabled hq2x - hq2x hq3x - hq3x hq4x - hq4x scale2x - scale2x scale3x - scale3x scale4x - scale4x 2xsai - 2xSaI super2xsai - Super 2xSaI supereagle - Super Eagle nn2x - Nearest-neighbor 2x nn3x - Nearest-neighbor 3x nn4x - Nearest-neighbor 4x nny2x - Nearest-neighbor 2x, y axis only nny3x - Nearest-neighbor 3x, y axis only nny4x - Nearest-neighbor 4x, y axis only
psx.stretch | enum | 0 full aspect aspect_int aspect_mult2 | aspect_mult2 | Stretch to fill screen. 0 - Disabled full - Full Full-screen stretch, disregarding aspect ratio. aspect - Aspect Preserve Full-screen stretch as far as the aspect ratio(in this sense, the equivalent xscalefs == yscalefs) can be maintained. aspect_int - Aspect Preserve + Integer Scale Full-screen stretch, same as "aspect" except that the equivalent xscalefs and yscalefs are rounded down to the nearest integer. aspect_mult2 - Aspect Preserve + Integer Multiple-of-2 Scale Full-screen stretch, same as "aspect_int", but rounds down to the nearest multiple of 2.
psx.tblur | boolean | 0 1 | 0 | Enable video temporal blur(50/50 previous/current frame by default).
psx.tblur.accum | boolean | 0 1 | 0 | Accumulate color data rather than discarding it.
psx.tblur.accum.amount | real | 0 through 100 | 50 | Blur amount in accumulation mode, specified in percentage of accumulation buffer to mix with the current frame.
psx.videoip | enum | 0 1 x y | 1 | Enable (bi)linear interpolation. 0 - Disabled 1 - Bilinear x - Linear (X) Interpolation only on the X axis. y - Linear (Y) Interpolation only on the Y axis.
psx.xres | integer | 0 through 65536 | 0 | Full-screen horizontal resolution. A value of "0" will cause the desktop horizontal resolution to be used.
psx.xscale | real | 0.01 through 256 | 3.000000 | Scaling factor for the X axis in windowed mode.
psx.xscalefs | real | 0.01 through 256 | 1.000000 | Scaling factor for the X axis in fullscreen mode. For this settings to have any effect, the ".stretch" setting must be set to "0".
psx.yres | integer | 0 through 65536 | 0 | Full-screen vertical resolution. A value of "0" will cause the desktop vertical resolution to be used.
psx.yscale | real | 0.01 through 256 | 3.000000 | Scaling factor for the Y axis in windowed mode.
psx.yscalefs | real | 0.01 through 256 | 1.000000 | Scaling factor for the Y axis in fullscreen mode. For this settings to have any effect, the ".stretch" setting must be set to "0".