Magnavox - Odyssey2 / Phillips Videopac+ (O2EM)

Background

O2EM is an open source multi-platform Odyssey2 / Videopac+ emulator. The Odyssey2 (Videopac/Jopac in Europe) was a video game console created in the late 70s.

The O2EM core has been authored by

  • Daniel Boris
  • Andre de la Rocha
  • Arlindo M. de Oliveira

The O2EM core is licensed under

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

BIOS

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

Filename Description md5sum
o2rom.bin Odyssey2 BIOS - G7000 model - Required 562d5ebf9e030a40d6fabfc2f33139fd
c52.bin Videopac+ French BIOS - G7000 model - Required f1071cdb0b6b10dde94d3bc8a6146387
g7400.bin Videopac+ European BIOS - G7400 model - Required c500ff71236068e0dc0d0603d265ae76
jopac.bin Videopac+ French BIOS - G7400 model - Required 279008e4a0db2dc5f1c048853b033828

Extensions

Content that can be loaded by the O2EM core have the following file extensions:

  • .bin

RetroArch database(s) that are associated with the O2EM core:

Features

Frontend-level settings or features that the O2EM core respects.

Feature Supported
Restart
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 O2EM core's library name is 'O2EM'

The O2EM core saves/loads to/from these directories.

Frontend's State directory

File Description
*.state# State

Geometry and timing

  • The O2EM core's core provided FPS is 60 for NTSC games and 50 for PAL games
  • The O2EM core's core provided sample rate is 44100 Hz
  • The O2EM core's base width is 340
  • The O2EM core's base height is 250
  • The O2EM core's max width is 340
  • The O2EM core's max height is 250
  • The O2EM core's core provided aspect ratio is 4/3

Joypad

RetroPad Inputs User 1 input descriptors
1
Up
Down
Left
Right
Fire
2
3
4
RetroPad Inputs User 2 input descriptors
Up
Down
Left
Right
Action

Keyboard

RetroKeyboard Inputs O2EM Inputs
Keyboard Return Enter
Keyboard Space Space
Keyboard Minus - -
Keyboard Period . .
Keyboard Slash / /
Keyboard 0 0
Keyboard 1 1
Keyboard 2 2
Keyboard 3 3
Keyboard 4 4
Keyboard 5 5
Keyboard 6 6
Keyboard 7 7
Keyboard 8 8
Keyboard 9 9
Keyboard Equals = =
Keyboard Question ? ?
Keyboard a a
Keyboard b b
Keyboard c c
Keyboard d d
Keyboard e e
Keyboard f f
Keyboard g g
Keyboard h h
Keyboard i i
Keyboard j j
Keyboard k k
Keyboard l l
Keyboard m m
Keyboard n n
Keyboard o o
Keyboard p p
Keyboard q q
Keyboard r r
Keyboard s s
Keyboard t t
Keyboard u u
Keyboard v v
Keyboard w w
Keyboard x x
Keyboard y y
Keyboard z z
Keyboard End Clear