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Atari - 7800 (ProSystem)

Background

ProSystem is an Atari 7800 emulator.

Author/License

The ProSystem core has been authored by

  • Greg Stanton
  • Brian Berlin
  • Leonis
  • Greg DeMent

The ProSystem core is licensed under

A summary of the licenses behind RetroArch and its cores can be found here.

Extensions

Content that can be loaded by the ProSystem core have the following file extensions:

  • .a78
  • .bin

Databases

RetroArch database(s) that are associated with the ProSystem core:

BIOS

Required or optional firmware files go in the frontend's system directory.

Filename Description md5sum
7800 BIOS (U).rom 7800 BIOS - Optional 0763f1ffb006ddbe32e52d497ee848ae

Features

Frontend-level settings or features that the ProSystem core respects.

Feature Supported
Restart ✔
Screenshots ✔
Saves ✕
States ✔
Rewind ✔
Netplay ✕
Core Options ✕
RetroAchievements ✔
RetroArch Cheats ✕
Native Cheats ✕
Controls ✔
Remapping ✔
Multi-Mouse ✕
Rumble ✕
Sensors ✕
Camera ✕
Location ✕
Subsystem ✕
Softpatching ✕
Disk Control ✕
Username ✕
Language ✕
Crop Overscan ✕
LEDs ✕

Directories

The ProSystem core's internal core name is 'ProSystem'

The ProSystem core saves/loads to/from these directories.

Frontend's State directory

  • 'content-name'.state# (State)

Geometry and timing

  • The ProSystem core's core provided FPS is 60 for NTSC games and 50 for PAL games.
  • The ProSystem core's core provided sample rate is 32640 Hz for NTSC games and 31200 Hz for PAL games
  • The ProSystem core's core provided base width is 320
  • The ProSystem core's core provided base height is 223 for NTSC games and 272 for PAL games
  • The ProSystem core's core provided max width is 320
  • The ProSystem core's core provided max height is 292
  • The ProSystem core's core provided aspect ratio is 4/3

Controllers

The ProSystem core supports the following device type(s) in the controls menu, bolded device types are the default for the specified user(s):

User 1 - 2 device types

  • None - Doesn't disable input. There's no reason to switch to this.
  • RetroPad - Joypad - Stay on this.
  • RetroPad w/Analog - Joypad - Same as RetroPad. There's no reaosn to switch to this.

Controller tables

Joypad

User 1 Remap descriptors RetroPad Inputs
B
Console Select
Console Pause
Up
Down
Left
Right
2
Console Reset
Left Difficulty
Right Difficulty
User 2 Remap descriptors RetroPad Inputs
1
Up
Down
Left
Right
2
Last update: 2024-04-19