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Sega 32X

Overview

The Sega 32X application is an emulator for the Sega 32X, an add-on for the Sega Genesis/Mega Drive that added a pair of SH-2 processors for enhanced graphics.

Controls

The emulator supports up to two controllers. The keyboard and gamepad mappings are listed in the tables below.

Keyboard

Keyboard support is only available for controller one.

Name
Keys
 Comments
Move
A
B
C
X
Y
Z
Start
Mode The Right Shift Key.
Show Pause Screen
Show Pause Screen
(Alternate)		 + Hold the Control Key and press the Shift Key to show the webЯcade pause screen.

Gamepad

Gamepad support is available for both controllers.

Name
Gamepad
 Comments
Move  or 
A
B
C
X
Y
Z
Start Not available for Xbox and not recommended for iOS (see alternate)

Press the Menu (Start) Button.
Start
(Alternate)		  and  Hold down the Right Trigger and click (press down) on the Right Thumbstick.
Mode Not available for Xbox and not recommended for iOS (see alternate)

Press the View (Back) Button.
Mode
(Alternate)		  and  Hold down the Right Trigger and click (press down) on the Left Thumbstick.
Show Pause Screen  and  Not available for Xbox.

Hold down the X Button and press the View (Back) Button.
Show Pause Screen
(Alternate)		  and  Hold down the Left Trigger and click (press down) on the Left Thumbstick.

On-screen Controls

On-screen Controls

The 32X application includes an on-screen control which is detailed below.

Button Description
Pause (Show Pause Screen) Displays the webЯcade pause screen.

Whether this button is always displayed, or only displayed once touch, mouse, or keyboard input is detected, can be configured via the "On-screen controls" field on the Display Settings tab.

Pause Screen

The Sega 32X application's pause screen provides access to application settings.

Display Settings Tab

Field Description
Screen size The screen size to use when playing a game.

Options include:
  • Native : The application's native resolution
  • 16:9 : Widescreen resolution
  • Fill : Fill the entire contents of the screen
Bilinear filter The type of bilinear filter to apply to the output display.
On-screen controls Toggle whether the on-screen controls should always be displayed, or only displayed once touch, mouse, or keyboard input has been detected.

Battery-backed SRAM

Some 32X cartridges include battery-backed SRAM as a means of preserving state between sessions. The 32X application supports persisting this SRAM state into the browser's local storage or optionally to cloud-based storage. The SRAM contents will be persisted whenever the pause screen is displayed (or the game is exited). Therefore, the menu should be displayed periodically for games that support battery-backed SRAM to ensure the state is properly persisted.

Feed

This section details how Sega 32X application instances can be added to feeds.

Type

The type name for the Sega 32X application is retro-picodrive-32x.

Type Cheats Shaders Retro
Achievements		 Low
CPU
retro-picodrive-32x ⭐ ✅ ✅ ✅ x

Note

The alias 32x also currently maps to this application. In the future, the 32x alias may be mapped to another Sega 32X application (different emulator implementation) if it is determined to be a more appropriate default.

Item Properties

The table below contains the properties that are specific to the Sega 32X application. These properties are specified in the props object of a feed item.

Property Type Required Details
rom URL Yes URL to a Sega 32X ROM file (.32x) or a zip file containing one.
cheat URL No URL to a cheat file for the current ROM. See the Cheats Tab in the Item Editor for details on assigning cheat files.
pad3button Boolean No Whether to use 3-button control pads (6-button is the default).
port2 Numeric No The type of controller to emulate in port #2. Defaults to 0 (Gamepad).
  • 0 : Gamepad
  • 1 : Light Gun
  • 10 : None
Some games (e.g. Corpse Killer) require port #2 to be disconnected (10).
zoomLevel Numeric No A numeric value indicating how much the display image should be zoomed in (0-40).

This property is typically used to hide the black borders that are present on some games.

Example

The following is an example of a complete feed that consists of a single Sega 32X application instance (type value of 32x).

{
  "title": "Sega 32X",
  "categories": [
    {
      "title": "Sega 32X Games",
      "items": [
        {
          "title": "My 32X Game",
          "type": "32x",
          "props": {
            "rom": "https://<host>/mygame.32x"
          }
        }
      ]
    }
  ]
}

References

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