Atari 5200

System Specs

Links

Track Ball

Technical Files

Patents

Source Code

Development Software

Emulators

Schematics

System Specs

Processor: 6502 (note: This is Atari's custom 6502 which can be halted to allow other devices to control the bus)

Speed: 1.78Mhz

RAM: 16K

ROM: built in 2K BIOS ROM, 32K Cartridge ROM space without bankswitching

Sound: POKEY custom sound chip.

Graphics: ANTIC and GTIA custom graphics chips

Graphics Memory: Uses main memory
Colors: 256
Sprites: 4, 8 bit wide; 4, 2 bit wide, All sprites full screen height
Background graphics: 6 text modes, 12 graphics modes
Max Resolution: 320x200 pixels
Other : Hardware veritcal and horizontal scrolling

Ports: 2 (4 on some models) joystick ports for analog stick and keypad, Cartridge port, Expansion port

Links

Atari Age

Atari Gaming Headquarters

Atari Historical Society

Caféman's Atari 5200 Supersystem

Track Ball Technical Information

A page of tech info on the 5200 trackball including schematics.

Technical Files

Note: There is not much technical information specifically for the 5200, but since the 5200 is based on the same hardware as the Atari 8-bit computer, a lot of the information on these systems is applicable to the 5200.

For information on the 6502 microprocessor go to by 6502 Processor page.

Atari 5200 FAQ: This FAQ contains a wealth of information about the 5200 including some technical information that I wrote.

Analog Magazine 5200 article: This is an article from Analog magazine that describes the differences between the Atari computers and the 5200.

Analog Magazine 5200 article (annotated): This is a PDF version of the Analog Magazine article that has been re-formatted a bit and with some annotations written by me.

Atari System Reference Manual: This is the system reference manual for the Atari computers. There is a lot of hardware related information in it that is pertinent to the 5200.

The Atari Reference Library: This section of the Atari Historical Society web page includes original Atari datasheets on the Antic, Pokey, and GTIA chips.

De-Re Atari: Back in the day, De-Re Atari was the one book no respectable Atari 8-bit programmer would be without. It contains tons of excellent information on programming the Atari 8-bit hardware.

Atari Graphics & Arcade Game Design: Another good book about Atari 8-bit programming.

Trevin Beattie's Atari Technical Information page: This site has a lot of technical information about each of the major chips in the Atari 5200/Atari 8-bit computers.

Atari 5200 Programming Tutorial: Tutorial on basic 5200 programming by Ronen Habot.

Patents

US3728480: TELEVISION GAMING AND TRAINING APPARATUS

USRE028507: Television gaming apparatus

USRE028598: TELEVISION GAMING APPARATUS AND METHOD

US4112422: Method and apparatus for generating moving objects on a video display screen

US4152671: Oscillator-modulator apparatus and method therefor

US4214360: Method of making a radio frequency oscillator-modulator with ground metallization

US4296476: Data processing system with programmable graphics generator

US4314236: Apparatus for producing a plurality of audio sound effects

US4045789: Animated video image display system and method

Source Code

5200 Hello World: This is the source code for a basic Atari 5200 "Hello World" program. It is a good starting point for Atari 5200 programming.

5200 PM Graphics: This is a simple demonstration of how to do Player/Missile graphics. Now also demonstrates sprite re-use.

5200 BIOS ROM: This is an almost complete disassembly of the 5200 BIOS

Development Software

DASM.ZIP: This is a new 6502 cross assembler for MSDOS. It supports pretty much any feature you could want in an assembler including macros, and the ability to produce raw-binary files. Thanks to Bob Colbert for porting this assembler from the Amiga.

Emulators

VSS V0.82 (Virtual Super System)

VSS is an Atari 5200 Super System emulator for MSDOS. The current version runs about 95% of the ROM images I have almost flawlessly, and at a reasonable speed. To use the emulator you will need a copy of the 5200's 2K BIOS ROM, and 5200 ROM cart images. Due to copyright reasons, I cannot provide these. PLEASE DO NOT E-mail me looking for ROM images. All message looking for ROM images will be promptly deleted. I will do my best to answer all other e-mails.

5200 ROM images can be found at Atariage.com

All 5200 ROMS are playable with the following exceptions:

Not playable: Mr Do's Castle, Decathalon, Pole Position, Real Sports Soccer

What's new in V0.82:

• Support for Bounty Bob put back in


• PRIOR bit 5 implemented. Causes overlapping players to produce a third color in the overlapped area.


• Updgraded to Allegro 4.0


• Switched back to Allegro Sound library


• Bit 0 of PM color registers is now dropped as it should be


• Added full support for 2 controllers


• Re-arranged some of the default keys


• Compensated for stolen CPU cycles during DMA. River Raid now works


• Fixed display list handling, Blaster now works


• Bounty Bob will now load if you try to load any of the three files that make it up. -BB switch not needed but still works


• Support for loading 40K Bounty Bob File


• Support for 64K bank switch mode


• New command line option -map16k to select 16K single ROM mode

• colorpal - show the full 128 color pallette
• colorpalgtia - show the full 256 GTIA color pallette
• display - shows the last display the was rendered
• dif - Disassemble to a file
• wa - Watch address command, allows breaking when an address changes
  

Click here to download version 0.82 of Virtual Super System.

NOTE: VSS only works with 5200 binary images. VSS DOES NOT work with .ATR ,.DCM, or .XFD files which are Atari 8-bit computer disk images.

Other 5200 Emulators

Atari800 - Open source Atari 8-Bit/5200 emulator that has been ported to many platforms
MESS - Open source mult-system emulator, including Atari 8-bit/5200 support.
Jum52 - Very good 5200 emulator with version for DOS, Windows, Mac and BeOS.

Schematics

The following are schematics that I have traced out by hand. I cannot guarantee that these schematics are accurate, or that they are the same for all versions of a piece of equipment.

(Special thanks to Kenneth Simmons for improving upon my original schematics)

Atari 5200 Cartridge

Atari 5200 Controller

Full schematics for the system can be found on Atariage.com

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Dan Boris - danlb_2000@yahoo.com