# List of candidates for self-running 'captive' demos # # Not all games are good candidates. Some have no demo mode at all. # Others technically have one but it's visually uninteresting or too short. # Others are ruled out by technical constraints. Due to the architecture of # the launcher, all captive demos must run entirely in main memory (48K). # NO languard card, NO auxmem! # # We have enough disk space that we don't worry too much about it. (Wow.) # Generally we start with an uncompressed ProDOS port of the entire game # and whittle it down to just the files it needs for its demo mode, then # apply patches so that it # # - returns control after the natural end of the demo cycle # - returns control on any keypress # - returns control on any button press (note: some games don't support # joystick buttons at all, and we don't add button support, but if you # can start the game by pressing a button, we need to ensure that that # returns control instead) # - disables all sound output # # 'Returning control' involves activating RAM bank 1 read access and # jumping to $D000 (labeled as |Reenter| in the source code). The launcher # puts this code at $0100 before executing a captive demo, so generally # you can just put 'JMP $0100' anywhere. If a particular game overwrites # this area of the stack page, you will need to find 6 bytes for the # 'LDA $C088 / JMP $D000' instructions yourself. # # Notes on completed and in-progress captive demos are in res/notes/ # # uncompressed but unpatched Alien Downpour Bouncing Kamungas Buzzard Bait Canyon Climber Ceiling Zero Drelbs Firebird Flip Out Formula 1 Racer Galaxian High Rise Lady Tut Nibbler O'Riley's Mine Robotron 2084 Snake Byte Snoggle Spider Raid Stargate Stellar 7 The Goonies Thunder Bombs Track N Field # done Agent USA Alien Ambush Alien Rain Apple Cider Spider Aquatron Bolo BurgerTime Championship Lode Runner Choplifter Conan Dino Eggs Dung Beetles Gamma Goblins Gumball Hard Hat Mack Jungle Hunt Karateka Lode Runner Lost Tomb Mr. Cool Pac-Man Pest Patrol Pie-Man Pitfall II Plasmania Pooyan Repton Sammy Lightfoot Serpentine Sneakers Spare Change Spy Hunter Spy's Demise Tubeway ][ Warp Destroyer Wavy Navy Vindicator # obvious candidates that we're skipping Arkanoid (requires 64K) Drol (attract mode is minimal) Mr. Do (attract mode requires 64K) Prince of Persia (requires 128K) Rescue Raiders (requires 64K) Ribbit ("demo" is just "practice mode" with infinite lives and no scoring) Starblaster ("demo" is just "practice mode" with infinite lives and no scoring) Succession ("demo" is just "practice mode" with infinite lives and no scoring) Tag Team Wrestling (requires 64K)