ACML Posted July 31, 2014 Share Posted July 31, 2014 I know some of these are pure size (i.e. >48K RAM), but many are far less than 48K size files, but they won't work on the 48K 800 with OS-B. When it says it requires 64K, that means it won't run on a 48K 800, but will on a 64K Omniview which is basically an OS-B with an 80 column mode and 64K RAM. The ones that say XL OS won't run on a 64K Omniview or 48K 800 OS-B and truly need an XL OS. XEX's that require a 64K OS and will not run on a 48K Atari 800. Yes, the full disk ATR's may work on an 800, but not the XEX versions. Air Wolf Alien 8 Amaurote Amaurote 2013 Animal Party Apple Invaders Balz Bank Bang! Barbarian version 4 Basil the Great Mouse Detective Black Lamp Blinky's Scary School Blip Blue Thunder BMX Simulator Bounce Ball (multi joystick) Crownland (demo) Crumbles Crisis Dart Chambers (Atari) Diamondz Draconos I Draconus II Draconus III Draconus IV Fantastic Soccer Food Fight (Atari) Head Over Heels Hellcat Ace Hobgoblin Into the Eagle's Nest Jinks Knights Lore Lander Lode Runner 1 Lode Runner 2 Loops DX Loops of Zen Lunar Jetman Lunar Lander Mad Stone Mario Brothers 2007 Mercenary Mind Blast Mission Mountain Bike Mr. Robot 2 Nation's Flags Ninja Commando Ocean Detox Pad Perplexity Pipe line Rear Guard Ridiculous Reality Robix Silent Service Soccor Pong Spelunker Spitfire 40 Spy vs Spy 1 Spy vs Spy 2 (Island Caper) Spy vs Spy 3 (Artic Antics) Stack Up Strip Poker (Dominique) Strip Poker (Linda) Strip Poker (Marina) Strip Poker (Melanie) Strip Poker (Suzi) Strip Poker (Sylvia) Sub Hunter Super Soccer Superversion Swapz Tales of Dragons and Cavemen Thunder Fox Tomahawk Warhawk Project - M X-8 Xerious Defect XXL Yoomp These require the 400/800 OS-B Ghost Hunter (1981 Original version) Protector 2 Run for the Money Star Raiders Dual These require an XL OS and won't run on a 48K Atari 800 or 64K Omniview OS Alien Busters Amnesia Battleship Bubble Burger Chef Castles of Confusion Choplifter XE (color) City Hawk Crack Up Dropzone (cheats) Galaga Gyruss Hot Wheels Lode Runner stages 1 to 40 Lode Runner stages 41 to 80 Lode Runner stages 81 to 120 Mule Multi Race Multris Othello 2 Protector 2 (Synapse) Serpent Spitfire Ace Strip Poker (Candy) Strip Poker (Marlene) Surf's Up Tank vs Tank Tetris Volleyball Does anyone have 48K Atari 800 friendly versions of these XEXs? Again, not looking for ATR versions, just XEX versions. Quote Link to comment Share on other sites More sharing options...
Rybags Posted July 31, 2014 Share Posted July 31, 2014 File size isn't a good indicator, plenty use compression or might use the extra 16K as workspace. There's a good number in there though that don't need 64K. Spelunker - in fact I think it might run in 40K. Blue Thunder, I don't think that's very big. The lesson of illegal OS calls wasn't learnt by many - some continued the bad habit of undocumented calls with the XL OS but it was probably much more the case for cracks and the like rather than commercial releases. Quote Link to comment Share on other sites More sharing options...
peteym5 Posted July 31, 2014 Share Posted July 31, 2014 Could be certain games disable the XL/XE OS and set up custom IRQ, NMI, and Reset. Using a custom NMI for can reduce a few cycles for DLIs. Quote Link to comment Share on other sites More sharing options...
Marius Posted July 31, 2014 Share Posted July 31, 2014 Rybags is right about compression. A while ago I decided to start using my pal atari 400. And indeed especially those games with compression didn't want to decompress (and run). I hope you'll find what you are looking for. I like my 400 a lot and I would like to increase the game base a bit more when possible. Not sure... But I believe I got a mule file version running, but I'm not sure... Quote Link to comment Share on other sites More sharing options...
pirx Posted July 31, 2014 Share Posted July 31, 2014 There is my game Bank! Bang! there - I was not using OS, basically turning it off was one of the first things on a list. Then you've got a bit more memory. I do not remember if this was the case for B!B!, but certainly it was for Operation Blood and Special Forces. Additionally the game was released as fileless bootable disk, so the file version is possibly compressed and indeed, compressors do use XL memory. And now the big reason - when I was making the game I did not really know about A800 at all - I have never seen one. Cheapo XL/XE were the thing. Best, pirx Quote Link to comment Share on other sites More sharing options...
thorfdbg Posted August 1, 2014 Share Posted August 1, 2014 Could be certain games disable the XL/XE OS and set up custom IRQ, NMI, and Reset. Using a custom NMI for can reduce a few cycles for DLIs. Rarely ever. In most cases, the original version would run on an unmodified A800. The trouble is, most such games were disk boots, and where converted manually by the "crackers" to file versions. Now, how do you fit a boot version with a loader, an intro and several levels on disk into a file? Well, you typically employ the extra RAM you have on the XL, store the additional sectors for levels or game there, and then modify the internal game loader code to take the code from the RAM behind the OS rather than load it from disk. Quote Link to comment Share on other sites More sharing options...
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