All the emulators now support .ST2 format cartridges.
A bug in the Windows version (not sensing left keypad '0') was fixed.
This emulator is freeware.
Debugging emulator is written using the 32 bit DOS extender WDOSX,
so should run fine on any computer which will run that - MSDOS or compatible,
Windows 3, Windows 95, Windows 98 all work happily. It needs an ADLIB compatible
card at $0388 (normal) for the sound to work. This program does not work
(apparently) under Windows versions greater than 98, or NT. This one is
best used for development, and is not planned to be improved any more.
The DOS non
debugging emulators are written in Turbo C v2.01 from Borland ; there
are two of them, one uses 320x200 graphics mode, the other uses 80 x 25
text mode. This compiler is available from Borland in their "Historical
There is also a 16
Bit Windows port using the same code for those of you who are Windows
fans. It is quite a small file (see, Windows programs don't have to be
4Mb in size !). It was compiled using Borland C++ v4.5, but is a standard
16 bit Windows Application. This compiler has been put on several cover
To run either, just unzip them and type STEM, STEMT or WINSTEM. The
banner will be displayed, then nothing will happen, except you will see
a blank screen. This is absolutely normal for the RCA Studio 2.
No other files are required, except the ones in the archive.
To load .ST2 format cartridges (like the new games Invaders and Hockey),
you can do this from the command line (e.g. STEM INVADERS.ST2). If you
are running the Windows version you can do it via file association of type
.ST2 with WINSTEM.EXE, you can use the Open dialog on the File menu, or
you can drag and drop a cartridge file onto the game window.
Reset the Studio 2 : the equivalent of pressing "CLEAR"
Return to MSDOS
Enter the Debugger
The keys on a real Studio 2 are orientated as follows :-
On the PC keyboard, use the following keys :-
Studio 2 Key
Player 1: Left Keypad A
Player 2 : Right Keypad B
There are five games built into the machine : Doodle, Patterns, Bowling,
Freeway and Addition.
At present there are none of the original
Studio 2 cartridges available. I just had a stand alone machine. If you
are willing to loan me any cartridges so I can dump them on my hardware.
If you want to know how to dump them yourself, please see the technical
information file (included) for a non destructive method of dumping Studio
2 ROM Cartridges by modifying the Studio 2 , OR by the proposed
method of cartridge dumping, then let me have a copy for this site please.
Built in Games
Very brief instructions on how to play the built in games. Instructions
on other games are included in the ZIP file. Scans of the originals, taken
from Richard Smedley's site (with his permission) are available at the
Press 1 on Keyboard A to start. A white dot appears. Move it by pressing
1,2,3,4,6,7,8,9 on keyboard B. Press key 5 to repeat the doodle. Key 0
puts it in "erase" mode.
Press 2 on Keyboard A to start. Form a simple design as for "Doodle". Press
0 on Keyboard B to make the pattern repeat. Start again by pressing Key
Press 3 on Keyboard A to start. Players take it in turns. Use 2 to hook
up, 5 for straight, 8 for hook down. Plays up to 10 frames.
Press 4 on Keyboard A to start. Press 0 on Keypad B to start. Control car
using 2,4,6,8 on the right keypad. Score given after 2 minutes. For a "hard"
game, start with Key 0 on Keypad A
Press 5 on Keyboard A to start. Add up the digits in the middle and press
the appropriate key. The quicker you are the more points you get. Game
lasts for 20 numbers.
John Dondzila for providing the RCA Studio 2
Jack Spencer Jr for his work on the FAQ and other information
Borland/Inprise for TASM and various Turbo C compilers which were used
to write the emulators