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# Sega Saturn Documentation

Last updated September 16, 2017
Valid as of 0.9.48

Table of Contents:

- Introduction
- Firmware/BIOS
- Default Input Mappings
  - Digital Gamepad on Virtual Port 1
  - Mouse on Virtual Ports 1-12
  - Light Gun on Virtual Ports 1-12
- Settings Reference

## Introduction

NOTE: The Sega Saturn emulation is currently experimental and under active development. By default(and for the official releases for Windows), Saturn emulation is only compiled in for builds for some 64-bit architectures(x86_64, AArch64, PPC64). The separate SSF playback module does not have this limitation.

Mednafen's Sega Saturn emulation is extremely CPU intensive. The minimum recommended CPU is a quad-core Intel Haswell-microarchitecture CPU with a base frequency of >= 3.3GHz and a turbo frequency of >= 3.7GHz(e.g. Xeon E3-1226 v3), but note that this recommendation does not apply to any unofficial ports or forks, which may have higher CPU requirements.

Save states are supported, but the data is not fully sanitized properly on save state load, so definitely avoid loading save states acquired from sources you don't trust(this includes via netplay).

Enabling CD image preloading into memory via the cd.image_memcache setting is recommended, to avoid short emulator pauses and audio pops due to waiting for disk accesses to complete when the emulated CD is accessed.

A list of known emulation bugs(with workarounds in some cases) in Saturn games with Mednafen is available at https://forum.fobby.net/index.php?t=msg&th=1357

## Firmware/BIOS

Place the correct BIOS image files in the correct location.

The filenames listed below are per default ss.bios_* settings.

Filename: | Purpose: | SHA-256 Hash:
--- | --- | ---
sega_101.bin | BIOS image. Required for Japan-region games. | dcfef4b99605f872b6c3b6d05c045385cdea3d1b702906a0ed930df7bcb7deac
mpr-17933.bin | BIOS image. Required for North America/US-region and Europe-region games. | 96e106f740ab448cf89f0dd49dfbac7fe5391cb6bd6e14ad5e3061c13330266f

## Default Input Mappings

### Digital Gamepad on Virtual Port 1

Key: | Emulated Button:
--- | ---
W | Up
S | Down
A | Left
D | Right
Enter | START
Keypad 1 | A
Keypad 2 | B
Keypad 3 | C
Keypad 4 | X
Keypad 5 | Y
Keypad 6 | Z
Keypad 7 | Left Shoulder
Keypad 9 | Right Shoulder

### Mouse on Virtual Ports 1-12

NOTE: The default mapping for the emulated mouse "START" button conflicts with the default mapping for the "Enter" key on the emulated keyboards on all virtual ports, and the default mapping for "START" on the emulated digital gamepad on virtual port 1. If you want to use an emulated mouse with an emulated keyboard, you should probably remap the "START" button to a non-keyboard host device.

Button: | Emulated Button:
--- | ---
Mouse, Left Button | Left Button
Mouse, Right Button | Right Button
Mouse, Middle Button | Middle Button
Keyboard, Enter | START

### Light Gun on Virtual Ports 1-12

Button: | Emulated Button:
--- | ---
Mouse, Left Button | Trigger
Mouse, Middle Button | START
Mouse, Right Button | Offscreen Shot(simulated)

## 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:
--- | --- | --- | --- | ---
ss.bios_jp | string |  | sega_101.bin | Path to the Japan ROM BIOS
ss.bios_na_eu | string |  | mpr-17933.bin | Path to the North America and Europe ROM BIOS
ss.bios_sanity | boolean | 0 1 | 1 | Enable BIOS ROM image sanity checks.
ss.cart | enum | auto none backup extram1 extram4 cs1ram16 | auto | Expansion cart. auto - Automatic none - None backup - Backup Memory(512KiB) extram1 - 1MiB Extended RAM extram4 - 4MiB Extended RAM cs1ram16 - 16MiB RAM mapped in A-bus CS1
ss.cart.kof95_path | string |  | mpr-18811-mx.ic1 | Path to KoF 95 ROM image.
ss.cart.ultraman_path | string |  | mpr-19367-mx.ic1 | Path to Ultraman ROM image.
ss.cd_sanity | boolean | 0 1 | 1 | Enable CD (image) sanity checks.
ss.correct_aspect | boolean | 0 1 | 1 | Correct aspect ratio. Disabling aspect ratio correction with this setting should be considered a hack. If disabling it to allow for sharper pixels by also separately disabling interpolation(though using Mednafen's "autoipsharper" OpenGL shader is usually a better option), remember to use scale factors that are multiples of 2, or else games that use high-resolution and interlaced modes will have distorted pixels. Disabling aspect ratio correction with this setting will allow for the QuickTime movie recording feature to produce much smaller files using much less CPU time.
ss.h_blend | boolean | 0 1 | 0 | Enable horizontal blend(blur) filter. Intended for use in combination with the "goat" OpenGL shader, or with bilinear interpolation or linear interpolation on the X axis enabled. Has a more noticeable effect with the Saturn's higher horizontal resolution modes(640/704).
ss.h_overscan | boolean | 0 1 | 1 | Show horizontal overscan area.
ss.input.mouse_sensitivity | real | through | 0.50 | Emulated mouse sensitivity.
ss.input.port1 | enum | none gamepad 3dpad mouse wheel mission dmission gun keyboard | gamepad | Input device for Virtual Port 1 none - none gamepad - Digital Gamepad Standard Saturn digital gamepad. 3dpad - 3D Control Pad 3D Control Pad mouse - Mouse Mouse wheel - Steering Wheel Arcade Racer/Racing Controller mission - Mission Stick Mission Stick dmission - Dual Mission Dual Mission Sticks, useful for "Panzer Dragoon Zwei". With 30 inputs to map, don't get distracted by..LOOK A LOBSTER! gun - Light Gun Virtua Gun/Stunner. Won't function properly if connected behind an emulated multitap. Emulation of the Saturn lightgun in Mednafen is not particularly accurate(in terms of low-level details), unless you happen to be in the habit of using your Saturn with a TV the size of a house and bright enough to start fires. keyboard - Keyboard (US) 101-key US keyboard. Emulated keyboard key state is not updated unless input grabbing(by default, mapped to CTRL+SHIFT+Menu) is toggled on; refer to the main documentation for details.
ss.input.port1.3dpad.mode.defpos | enum | digital analog | digital | Default position for switch "Mode". Sets the position for the switch to the value specified upon startup and virtual input device change. digital - Digital(+) analog - Analog(○) Analog mode is not compatible with all games. For some compatible games, analog mode reportedly must be enabled before the game boots up for the game to recognize it properly.
ss.input.port1.gun_chairs | integer | 0x000000 through 0x1000000 | 0xFF0000 | Crosshairs color for lightgun on virtual port 1. A value of 0x1000000 disables crosshair drawing.
ss.input.port10 | enum | none gamepad 3dpad mouse wheel mission dmission gun keyboard | gamepad | Input device for Virtual Port 10 none - none gamepad - Digital Gamepad Standard Saturn digital gamepad. 3dpad - 3D Control Pad 3D Control Pad mouse - Mouse Mouse wheel - Steering Wheel Arcade Racer/Racing Controller mission - Mission Stick Mission Stick dmission - Dual Mission Dual Mission Sticks, useful for "Panzer Dragoon Zwei". With 30 inputs to map, don't get distracted by..LOOK A LOBSTER! gun - Light Gun Virtua Gun/Stunner. Won't function properly if connected behind an emulated multitap. Emulation of the Saturn lightgun in Mednafen is not particularly accurate(in terms of low-level details), unless you happen to be in the habit of using your Saturn with a TV the size of a house and bright enough to start fires. keyboard - Keyboard (US) 101-key US keyboard. Emulated keyboard key state is not updated unless input grabbing(by default, mapped to CTRL+SHIFT+Menu) is toggled on; refer to the main documentation for details.
ss.input.port10.3dpad.mode.defpos | enum | digital analog | digital | Default position for switch "Mode". Sets the position for the switch to the value specified upon startup and virtual input device change. digital - Digital(+) analog - Analog(○) Analog mode is not compatible with all games. For some compatible games, analog mode reportedly must be enabled before the game boots up for the game to recognize it properly.
ss.input.port10.gun_chairs | integer | 0x000000 through 0x1000000 | 0x00FF80 | Crosshairs color for lightgun on virtual port 10. A value of 0x1000000 disables crosshair drawing.
ss.input.port11 | enum | none gamepad 3dpad mouse wheel mission dmission gun keyboard | gamepad | Input device for Virtual Port 11 none - none gamepad - Digital Gamepad Standard Saturn digital gamepad. 3dpad - 3D Control Pad 3D Control Pad mouse - Mouse Mouse wheel - Steering Wheel Arcade Racer/Racing Controller mission - Mission Stick Mission Stick dmission - Dual Mission Dual Mission Sticks, useful for "Panzer Dragoon Zwei". With 30 inputs to map, don't get distracted by..LOOK A LOBSTER! gun - Light Gun Virtua Gun/Stunner. Won't function properly if connected behind an emulated multitap. Emulation of the Saturn lightgun in Mednafen is not particularly accurate(in terms of low-level details), unless you happen to be in the habit of using your Saturn with a TV the size of a house and bright enough to start fires. keyboard - Keyboard (US) 101-key US keyboard. Emulated keyboard key state is not updated unless input grabbing(by default, mapped to CTRL+SHIFT+Menu) is toggled on; refer to the main documentation for details.
ss.input.port11.3dpad.mode.defpos | enum | digital analog | digital | Default position for switch "Mode". Sets the position for the switch to the value specified upon startup and virtual input device change. digital - Digital(+) analog - Analog(○) Analog mode is not compatible with all games. For some compatible games, analog mode reportedly must be enabled before the game boots up for the game to recognize it properly.
ss.input.port11.gun_chairs | integer | 0x000000 through 0x1000000 | 0x8080FF | Crosshairs color for lightgun on virtual port 11. A value of 0x1000000 disables crosshair drawing.
ss.input.port12 | enum | none gamepad 3dpad mouse wheel mission dmission gun keyboard | gamepad | Input device for Virtual Port 12 none - none gamepad - Digital Gamepad Standard Saturn digital gamepad. 3dpad - 3D Control Pad 3D Control Pad mouse - Mouse Mouse wheel - Steering Wheel Arcade Racer/Racing Controller mission - Mission Stick Mission Stick dmission - Dual Mission Dual Mission Sticks, useful for "Panzer Dragoon Zwei". With 30 inputs to map, don't get distracted by..LOOK A LOBSTER! gun - Light Gun Virtua Gun/Stunner. Won't function properly if connected behind an emulated multitap. Emulation of the Saturn lightgun in Mednafen is not particularly accurate(in terms of low-level details), unless you happen to be in the habit of using your Saturn with a TV the size of a house and bright enough to start fires. keyboard - Keyboard (US) 101-key US keyboard. Emulated keyboard key state is not updated unless input grabbing(by default, mapped to CTRL+SHIFT+Menu) is toggled on; refer to the main documentation for details.
ss.input.port12.3dpad.mode.defpos | enum | digital analog | digital | Default position for switch "Mode". Sets the position for the switch to the value specified upon startup and virtual input device change. digital - Digital(+) analog - Analog(○) Analog mode is not compatible with all games. For some compatible games, analog mode reportedly must be enabled before the game boots up for the game to recognize it properly.
ss.input.port12.gun_chairs | integer | 0x000000 through 0x1000000 | 0xFF8080 | Crosshairs color for lightgun on virtual port 12. A value of 0x1000000 disables crosshair drawing.
ss.input.port2 | enum | none gamepad 3dpad mouse wheel mission dmission gun keyboard | gamepad | Input device for Virtual Port 2 none - none gamepad - Digital Gamepad Standard Saturn digital gamepad. 3dpad - 3D Control Pad 3D Control Pad mouse - Mouse Mouse wheel - Steering Wheel Arcade Racer/Racing Controller mission - Mission Stick Mission Stick dmission - Dual Mission Dual Mission Sticks, useful for "Panzer Dragoon Zwei". With 30 inputs to map, don't get distracted by..LOOK A LOBSTER! gun - Light Gun Virtua Gun/Stunner. Won't function properly if connected behind an emulated multitap. Emulation of the Saturn lightgun in Mednafen is not particularly accurate(in terms of low-level details), unless you happen to be in the habit of using your Saturn with a TV the size of a house and bright enough to start fires. keyboard - Keyboard (US) 101-key US keyboard. Emulated keyboard key state is not updated unless input grabbing(by default, mapped to CTRL+SHIFT+Menu) is toggled on; refer to the main documentation for details.
ss.input.port2.3dpad.mode.defpos | enum | digital analog | digital | Default position for switch "Mode". Sets the position for the switch to the value specified upon startup and virtual input device change. digital - Digital(+) analog - Analog(○) Analog mode is not compatible with all games. For some compatible games, analog mode reportedly must be enabled before the game boots up for the game to recognize it properly.
ss.input.port2.gun_chairs | integer | 0x000000 through 0x1000000 | 0x00FF00 | Crosshairs color for lightgun on virtual port 2. A value of 0x1000000 disables crosshair drawing.
ss.input.port3 | enum | none gamepad 3dpad mouse wheel mission dmission gun keyboard | gamepad | Input device for Virtual Port 3 none - none gamepad - Digital Gamepad Standard Saturn digital gamepad. 3dpad - 3D Control Pad 3D Control Pad mouse - Mouse Mouse wheel - Steering Wheel Arcade Racer/Racing Controller mission - Mission Stick Mission Stick dmission - Dual Mission Dual Mission Sticks, useful for "Panzer Dragoon Zwei". With 30 inputs to map, don't get distracted by..LOOK A LOBSTER! gun - Light Gun Virtua Gun/Stunner. Won't function properly if connected behind an emulated multitap. Emulation of the Saturn lightgun in Mednafen is not particularly accurate(in terms of low-level details), unless you happen to be in the habit of using your Saturn with a TV the size of a house and bright enough to start fires. keyboard - Keyboard (US) 101-key US keyboard. Emulated keyboard key state is not updated unless input grabbing(by default, mapped to CTRL+SHIFT+Menu) is toggled on; refer to the main documentation for details.
ss.input.port3.3dpad.mode.defpos | enum | digital analog | digital | Default position for switch "Mode". Sets the position for the switch to the value specified upon startup and virtual input device change. digital - Digital(+) analog - Analog(○) Analog mode is not compatible with all games. For some compatible games, analog mode reportedly must be enabled before the game boots up for the game to recognize it properly.
ss.input.port3.gun_chairs | integer | 0x000000 through 0x1000000 | 0xFF00FF | Crosshairs color for lightgun on virtual port 3. A value of 0x1000000 disables crosshair drawing.
ss.input.port4 | enum | none gamepad 3dpad mouse wheel mission dmission gun keyboard | gamepad | Input device for Virtual Port 4 none - none gamepad - Digital Gamepad Standard Saturn digital gamepad. 3dpad - 3D Control Pad 3D Control Pad mouse - Mouse Mouse wheel - Steering Wheel Arcade Racer/Racing Controller mission - Mission Stick Mission Stick dmission - Dual Mission Dual Mission Sticks, useful for "Panzer Dragoon Zwei". With 30 inputs to map, don't get distracted by..LOOK A LOBSTER! gun - Light Gun Virtua Gun/Stunner. Won't function properly if connected behind an emulated multitap. Emulation of the Saturn lightgun in Mednafen is not particularly accurate(in terms of low-level details), unless you happen to be in the habit of using your Saturn with a TV the size of a house and bright enough to start fires. keyboard - Keyboard (US) 101-key US keyboard. Emulated keyboard key state is not updated unless input grabbing(by default, mapped to CTRL+SHIFT+Menu) is toggled on; refer to the main documentation for details.
ss.input.port4.3dpad.mode.defpos | enum | digital analog | digital | Default position for switch "Mode". Sets the position for the switch to the value specified upon startup and virtual input device change. digital - Digital(+) analog - Analog(○) Analog mode is not compatible with all games. For some compatible games, analog mode reportedly must be enabled before the game boots up for the game to recognize it properly.
ss.input.port4.gun_chairs | integer | 0x000000 through 0x1000000 | 0xFF8000 | Crosshairs color for lightgun on virtual port 4. A value of 0x1000000 disables crosshair drawing.
ss.input.port5 | enum | none gamepad 3dpad mouse wheel mission dmission gun keyboard | gamepad | Input device for Virtual Port 5 none - none gamepad - Digital Gamepad Standard Saturn digital gamepad. 3dpad - 3D Control Pad 3D Control Pad mouse - Mouse Mouse wheel - Steering Wheel Arcade Racer/Racing Controller mission - Mission Stick Mission Stick dmission - Dual Mission Dual Mission Sticks, useful for "Panzer Dragoon Zwei". With 30 inputs to map, don't get distracted by..LOOK A LOBSTER! gun - Light Gun Virtua Gun/Stunner. Won't function properly if connected behind an emulated multitap. Emulation of the Saturn lightgun in Mednafen is not particularly accurate(in terms of low-level details), unless you happen to be in the habit of using your Saturn with a TV the size of a house and bright enough to start fires. keyboard - Keyboard (US) 101-key US keyboard. Emulated keyboard key state is not updated unless input grabbing(by default, mapped to CTRL+SHIFT+Menu) is toggled on; refer to the main documentation for details.
ss.input.port5.3dpad.mode.defpos | enum | digital analog | digital | Default position for switch "Mode". Sets the position for the switch to the value specified upon startup and virtual input device change. digital - Digital(+) analog - Analog(○) Analog mode is not compatible with all games. For some compatible games, analog mode reportedly must be enabled before the game boots up for the game to recognize it properly.
ss.input.port5.gun_chairs | integer | 0x000000 through 0x1000000 | 0xFFFF00 | Crosshairs color for lightgun on virtual port 5. A value of 0x1000000 disables crosshair drawing.
ss.input.port6 | enum | none gamepad 3dpad mouse wheel mission dmission gun keyboard | gamepad | Input device for Virtual Port 6 none - none gamepad - Digital Gamepad Standard Saturn digital gamepad. 3dpad - 3D Control Pad 3D Control Pad mouse - Mouse Mouse wheel - Steering Wheel Arcade Racer/Racing Controller mission - Mission Stick Mission Stick dmission - Dual Mission Dual Mission Sticks, useful for "Panzer Dragoon Zwei". With 30 inputs to map, don't get distracted by..LOOK A LOBSTER! gun - Light Gun Virtua Gun/Stunner. Won't function properly if connected behind an emulated multitap. Emulation of the Saturn lightgun in Mednafen is not particularly accurate(in terms of low-level details), unless you happen to be in the habit of using your Saturn with a TV the size of a house and bright enough to start fires. keyboard - Keyboard (US) 101-key US keyboard. Emulated keyboard key state is not updated unless input grabbing(by default, mapped to CTRL+SHIFT+Menu) is toggled on; refer to the main documentation for details.
ss.input.port6.3dpad.mode.defpos | enum | digital analog | digital | Default position for switch "Mode". Sets the position for the switch to the value specified upon startup and virtual input device change. digital - Digital(+) analog - Analog(○) Analog mode is not compatible with all games. For some compatible games, analog mode reportedly must be enabled before the game boots up for the game to recognize it properly.
ss.input.port6.gun_chairs | integer | 0x000000 through 0x1000000 | 0x00FFFF | Crosshairs color for lightgun on virtual port 6. A value of 0x1000000 disables crosshair drawing.
ss.input.port7 | enum | none gamepad 3dpad mouse wheel mission dmission gun keyboard | gamepad | Input device for Virtual Port 7 none - none gamepad - Digital Gamepad Standard Saturn digital gamepad. 3dpad - 3D Control Pad 3D Control Pad mouse - Mouse Mouse wheel - Steering Wheel Arcade Racer/Racing Controller mission - Mission Stick Mission Stick dmission - Dual Mission Dual Mission Sticks, useful for "Panzer Dragoon Zwei". With 30 inputs to map, don't get distracted by..LOOK A LOBSTER! gun - Light Gun Virtua Gun/Stunner. Won't function properly if connected behind an emulated multitap. Emulation of the Saturn lightgun in Mednafen is not particularly accurate(in terms of low-level details), unless you happen to be in the habit of using your Saturn with a TV the size of a house and bright enough to start fires. keyboard - Keyboard (US) 101-key US keyboard. Emulated keyboard key state is not updated unless input grabbing(by default, mapped to CTRL+SHIFT+Menu) is toggled on; refer to the main documentation for details.
ss.input.port7.3dpad.mode.defpos | enum | digital analog | digital | Default position for switch "Mode". Sets the position for the switch to the value specified upon startup and virtual input device change. digital - Digital(+) analog - Analog(○) Analog mode is not compatible with all games. For some compatible games, analog mode reportedly must be enabled before the game boots up for the game to recognize it properly.
ss.input.port7.gun_chairs | integer | 0x000000 through 0x1000000 | 0x0080FF | Crosshairs color for lightgun on virtual port 7. A value of 0x1000000 disables crosshair drawing.
ss.input.port8 | enum | none gamepad 3dpad mouse wheel mission dmission gun keyboard | gamepad | Input device for Virtual Port 8 none - none gamepad - Digital Gamepad Standard Saturn digital gamepad. 3dpad - 3D Control Pad 3D Control Pad mouse - Mouse Mouse wheel - Steering Wheel Arcade Racer/Racing Controller mission - Mission Stick Mission Stick dmission - Dual Mission Dual Mission Sticks, useful for "Panzer Dragoon Zwei". With 30 inputs to map, don't get distracted by..LOOK A LOBSTER! gun - Light Gun Virtua Gun/Stunner. Won't function properly if connected behind an emulated multitap. Emulation of the Saturn lightgun in Mednafen is not particularly accurate(in terms of low-level details), unless you happen to be in the habit of using your Saturn with a TV the size of a house and bright enough to start fires. keyboard - Keyboard (US) 101-key US keyboard. Emulated keyboard key state is not updated unless input grabbing(by default, mapped to CTRL+SHIFT+Menu) is toggled on; refer to the main documentation for details.
ss.input.port8.3dpad.mode.defpos | enum | digital analog | digital | Default position for switch "Mode". Sets the position for the switch to the value specified upon startup and virtual input device change. digital - Digital(+) analog - Analog(○) Analog mode is not compatible with all games. For some compatible games, analog mode reportedly must be enabled before the game boots up for the game to recognize it properly.
ss.input.port8.gun_chairs | integer | 0x000000 through 0x1000000 | 0x8000FF | Crosshairs color for lightgun on virtual port 8. A value of 0x1000000 disables crosshair drawing.
ss.input.port9 | enum | none gamepad 3dpad mouse wheel mission dmission gun keyboard | gamepad | Input device for Virtual Port 9 none - none gamepad - Digital Gamepad Standard Saturn digital gamepad. 3dpad - 3D Control Pad 3D Control Pad mouse - Mouse Mouse wheel - Steering Wheel Arcade Racer/Racing Controller mission - Mission Stick Mission Stick dmission - Dual Mission Dual Mission Sticks, useful for "Panzer Dragoon Zwei". With 30 inputs to map, don't get distracted by..LOOK A LOBSTER! gun - Light Gun Virtua Gun/Stunner. Won't function properly if connected behind an emulated multitap. Emulation of the Saturn lightgun in Mednafen is not particularly accurate(in terms of low-level details), unless you happen to be in the habit of using your Saturn with a TV the size of a house and bright enough to start fires. keyboard - Keyboard (US) 101-key US keyboard. Emulated keyboard key state is not updated unless input grabbing(by default, mapped to CTRL+SHIFT+Menu) is toggled on; refer to the main documentation for details.
ss.input.port9.3dpad.mode.defpos | enum | digital analog | digital | Default position for switch "Mode". Sets the position for the switch to the value specified upon startup and virtual input device change. digital - Digital(+) analog - Analog(○) Analog mode is not compatible with all games. For some compatible games, analog mode reportedly must be enabled before the game boots up for the game to recognize it properly.
ss.input.port9.gun_chairs | integer | 0x000000 through 0x1000000 | 0xFF80FF | Crosshairs color for lightgun on virtual port 9. A value of 0x1000000 disables crosshair drawing.
ss.input.sport1.multitap | boolean | 0 1 | 0 | Enable multitap on Saturn port 1.
ss.input.sport2.multitap | boolean | 0 1 | 0 | Enable multitap on Saturn port 2.
ss.midsync | boolean | 0 1 | 0 | Enable mid-frame synchronization. Mid-frame synchronization can reduce input latency, but it will increase CPU requirements.
ss.region_autodetect | boolean | 0 1 | 1 | Attempt to auto-detect region of game.
ss.region_default | enum | jp na eu kr tw as br la | jp | Default region to use. Used if region autodetection fails or is disabled. jp - Japan na - North America eu - Europe kr - South Korea tw - Taiwan as - China br - Brazil la - Latin America
ss.scsp.resamp_quality | integer | 0 through 10 | 4 | SCSP 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" may bypass the resampler, which can decrease CPU usage by Mednafen, and can increase or decrease audio quality, depending on various operating system and hardware factors.
ss.slend | integer | 0 through 239 | 239 | Last displayed scanline in NTSC mode.
ss.slendp | integer | -16 through 271 | 255 | Last displayed scanline in PAL mode.
ss.slstart | integer | 0 through 239 | 0 | First displayed scanline in NTSC mode.
ss.slstartp | integer | -16 through 271 | 0 | First displayed scanline in PAL mode.
ss.smpc.autortc | boolean | 0 1 | 1 | Automatically set RTC on game load. Automatically set the SMPC's emulated Real-Time Clock to the host system's current time and date upon game load.
ss.smpc.autortc.lang | enum | english german french spanish italian japanese | english | BIOS language. Also affects language used in some games(e.g. the European release of "Panzer Dragoon"). english - English german - Deutsch french - Français spanish - Español italian - Italiano japanese - 日本語

Setting: | Value Type: | Possible Values: | Default Value: | Description:
--- | --- | --- | --- | ---
ss.debugger.disfontsize | enum | 5x7 6x9 6x12 6x13 9x18 | 5x7 | Disassembly font size. Note: Setting the font size to larger than the default may cause text overlap in the debugger. 5x7 - 5x7 6x9 - 6x9 6x12 - 6x12 6x13 - 6x13. CJK support. 9x18 - 9x18; CJK support.
ss.debugger.memcharenc | string |  | SJIS | Character encoding for the debugger's memory editor.
ss.enable | boolean | 0 1 | 1 | Enable (automatic) usage of this module.
ss.forcemono | boolean | 0 1 | 0 | Force monophonic sound output.
ss.scanlines | integer | -100 through 100 | 0 | Enable scanlines with specified opacity. Opacity is specified in %; IE a value of "100" will give entirely black scanlines. Negative values are the same as positive values for non-interlaced video, but for interlaced video will cause the scanlines to be overlaid over the previous(if the video.deinterlacer setting is set to "weave", the default) field's lines.
ss.shader | enum | none autoip autoipsharper scale2x sabr ipsharper ipxnoty ipynotx ipxnotysharper ipynotxsharper goat | none | Enable specified OpenGL shader. Obviously, this will only work with the OpenGL "video.driver" setting, and only on cards and OpenGL implementations that support shaders, otherwise you will get a black screen, or Mednafen may display an error message when starting up. When a shader is enabled, the ".videoip" setting is ignored. 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". goat - Simple approximation of a color TV CRT look. Intended for fullscreen modes with a vertical resolution of around 1000 to 1500 pixels. Doesn't simulate halation and electron beam energy distribution nuances.
ss.shader.goat.fprog | boolean | 0 1 | 0 | Force interlaced video to be treated as progressive. When disabled, the default, the "video.deinterlacer" setting is effectively ignored with respect to what appears on the screen. When enabled, it may be prudent to disable the scanlines effect controlled by the *.goat.slen setting, or else the scanline effect may look objectionable.
ss.shader.goat.hdiv | real | -2.00 through 2.00 | 0.50 | Constant RGB horizontal divergence.
ss.shader.goat.pat | enum | goatron borg slenderman | goatron | Mask pattern. goatron - Goatron Brightest. borg - Borg Darkest. slenderman - Slenderman Spookiest?
ss.shader.goat.slen | boolean | 0 1 | 1 | Enable scanlines effect.
ss.shader.goat.tp | real | 0.00 through 1.00 | 0.50 | Transparency of otherwise-opaque mask areas.
ss.shader.goat.vdiv | real | -2.00 through 2.00 | 0.50 | Constant RGB vertical divergence.
ss.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
ss.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.
ss.tblur | boolean | 0 1 | 0 | Enable video temporal blur(50/50 previous/current frame by default).
ss.tblur.accum | boolean | 0 1 | 0 | Accumulate color data rather than discarding it.
ss.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.
ss.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.
ss.xres | integer | 0 through 65536 | 0 | Full-screen horizontal resolution. A value of "0" will cause the desktop horizontal resolution to be used.
ss.xscale | real | 0.01 through 256 | 3.000000 | Scaling factor for the X axis in windowed mode.
ss.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".
ss.yres | integer | 0 through 65536 | 0 | Full-screen vertical resolution. A value of "0" will cause the desktop vertical resolution to be used.
ss.yscale | real | 0.01 through 256 | 3.000000 | Scaling factor for the Y axis in windowed mode.
ss.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".