Maths Tutor x - [b]. Maze Acornsoft. Maze Acornsoft [a]. Megaforce Ian Collinson. Mexico 86 Finals Doctor Soft [b]. Mexico 86 Qualifiers Qual-Soft. Microball x Steve Evans.
Micro Olympics x Electron User. Micro Olympics x Electron User [a]. Mikie x Konami-Imagine. Mine, The Adventure Soft U. Mined Out x Quicksilva. Mineshaft Durell Software. Mineshaft Durell Software-Virgin Software [b]. Mini Office - Database x -. Mini Office - Graphics x -. Mini Office - Spreadsheet x Superior Software. Mini Office - Word Processor x -. Missile Control Gemini Games.
Mission XP-2 x Holl-Soft. Monkeynuts Bug-Byte. Monsters Acornsoft. Monsters Durell Software. Monsters Superior Software-Acornsoft [a]. Monsterzap x -.
Moonbase Alpha x -. Moon Buggy x Kansas City Software [b]. Moon Raider Program Power. Moon Raider Program Power [a]. Mouse Trap x Tynesoft.
Network, The Superior Software-Acornsoft. Nightmare Maze Blue Ribbon. Night World x Doctor Soft. Omega Orb Audiogenic Software Ltd. Overdrive Superior Software. Overdrive Superior Software [a2]. Overdrive Superior Software [a]. Oxbridge Colisoft. Palace Of Magic x Superior Software. Palace Of Magic x Superior Software [a]. Palace Of Magic x Superior Software [b][disk].
Palace Of Magic x Superior Software [t]. Pandemonium Superior Software-Acornsoft. Panik Atlantis Software. Paperboy x Elite Systems [b]. Paperboy x Elite Systems [t]. Paras M. Paul Daniel's Magic Show x Acornsoft. Pedro Gemini Games. Peeko-Computer x Acornsoft. Pengi x Visions. Pengwyn x Postern.
Percy Penguin Superior Software. Percy Penguin Superior Software [a2]. Percy Penguin Superior Software [a]. Percy Penguin Superior Software-Acornsoft. Percy Penguin Superior Software-Acornsoft [a]. Perplexity Superior Software-Acornsoft. Pettigrew's Diary x Shards Software. Phantom Combat x Doctor Soft. Pharaoh's Tomb x -. Philosopher's Quest x Acornsoft. Philosopher's Stone, The Potter Programs.
Pinball Mycrobyte Software. Pinball Arcade x -. Pipeline Superior Software-Acornsoft. Pipeline Superior Software-Acornsoft [t]. Plane Crash Labyrinth Software. Poker Duckworth. Pony Express x Holl-Soft. Pool Hall x J. Positron Audiogenic Software Ltd.
Positron Partis-Soft [b]. Predator x Superior Software-Activision. Progolf Atlantis Software. Psycastria Audiogenic Software Ltd.
Psycastria 2 Audiogenic Software Ltd. Quest x Superior Software. Question Of Sport, A Elite systems. Questprobe 2 - Spiderman Adventure International. Quill, The Gilsoft. Qwak x Superior Software-Acornsoft. Ransack J. Ravage x Blue Ribbon. Ravenskull Superior Software-Acornsoft. Ravenskull Superior Software-Acornsoft [a]. Redcoats x M. Repton Superior Software [a2]. Repton Superior Software [a3]. Repton Superior Software [a4]. Repton Superior Software [a]. Repton 2 Superior Software. Repton 2 Superior Software [a2].
Repton 2 Superior Software [a3]. Repton 2 Superior Software [a]. Repton 3 Series Passwords and Editcodes x - [t]. Repton Infinity Superior Software-Acornsoft. Repton Infinity Superior Software-Acornsoft [t]. Return Of R2 J. Reversi D. Rick Hanson Robico Software. Ricochet x Superior Software-Acornsoft.
Rig Attack x Tynesoft. Rik The Roadie -. Roboto J. Robotron Atari Inc-Williams Electronics. Roman Empire M. Rubble Trouble Micropower. Runestaff Squaresoft. Saigon Tynesoft. Saigon Tynesoft [t]. Saracoid x -. Savage Pond x Starcade. Savage Pond x Starcade [a]. Sea Queen J. Shanghai Warriors English Software. Shanghai Warriors English Software [b].
Shark Audiogenic Software Ltd. Shuttle Simulator Microdeal. Sim Viper. Sim City Superior Software-Acornsoft. SkyHawk Bug-Byte. Snake x Kansas City Software. Snooker x Acornsoft. Snooker x Visions. Soccer Boss x -. Space Caverns Tynesoft. Spaceman Sid English Sotfware. Space Ranger x Micropower [b].
Space Station Alpha x - [b]. Special Operations x -. Spectapede x Mastertronic. Spellbinder x Superior Software [b]. Spellbinder x Superior Software [t]. Speroids Quad Squad. Spitfire 40 Mirrorsoft [b]. Spooksville Blue Ribbon-Exasoft Software. Spycat Superior Software.
Spycat Superior Software [t]. Squeakaliser x Bug-Byte. Star-port x Superior Software. Star Force Seven x Bug-Byte. Starmaze II Mastertronic. Starship Command x Acornsoft. Starship Command x Acornsoft [a].
Star Wars Lucasfilm Ltd. Steve Davis Snooker Blue Ribbon. Stix x Supersoft. Stock Car x Micropower. Stolen Lamp, The x M. Stormcycle Atlantis Software. Stranded x Superior Software.
Stranded On Iloofrax x Gilsoft. Stratobomber x IJK Software. Strike Force Harrier Mirrorsoft [b]. Stripper II x Aggressive Software. Strykers Run Superior Software. Strykers Run Superior Software [a2]. Strykers Run Superior Software [a]. Subway Vigilante Players. Subway Vigilante Players [b]. Suds - Part 1 x Riverdale Software.
Suds - Part 2 x Riverdale Software. Suds - Part 3 x Riverdale Software. Suds - Part 4 x Riverdale Software. Supergolf x Squirrel Software. Superior Soccer Superior Software-Acornsoft. Superman - The Game First Star. Super Pool Software Invasion. Super Spy Flint x Potter Programs. Survivor MP Software. Survivors, The Atlantis Software. Swoop x Program Power. Syncron Superior Software.
System-8 Cygnus Software-Blue Ribbon. Table Games - Accordion Gemini Games. Table Games - Backgammon Gemini Games. Table Games - Piquet Gemini Games. Tales Of The Arabian Nights x -. Tarzan Boy x Aligata Software. Tempest Atari-Superior Software. Over cassette-based games have been archived in UEF format :.
I love the idea that someone like me can just get a retro computer down from the attic, or off eBay, and get going! And so PlayUEF was born. The helpful folks at the stardot forums also convinced me to extend this to handle a wider set of UEF chunks and thus more BBC micro games. Like many s home computers, the BBC Micro and Acorn Electron load and store software on cassette by converting an analog audio signal into binary data and vice versa. Binary data is represented a very long series of very short tones of two different pitches.
This is a frequency modulation scheme known as Audio Frequency-Shift Keying. The Acorn cassette format uses one stop and start bit to delimit the data packet, making 10 bits in total to transmit an 8-bit byte of data.
See Spycat, Sim City or many others. The latter is much more rarely seen because it's not as obvious and because it severely impedes audio generation, the same counter being used for tape output and for audio generation, but contributed the small amount of empty space at the top of Southern Belle and Northern Star.
Sorry for being vague, but I believe of of the beeb racing games may be revs hides some code on screen in the sky area. A couple of timer interrupts to change the pallet was much easier than the practically unknown at the time "virtical rupture". Sign up to join this community. The best answers are voted up and rise to the top.
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Screen "garbage" in Acorn Electron games Ask Question. Asked 4 years, 5 months ago. Active 3 years ago. Viewed times. Improve this question. Similar to how the ZX Spectrum was affectionately known as the Speccy. Yars' Revenge did the same thing on the Atari to great effect.
Brilliant use of constrained memory. Updating the display involves writing code that is in sync with the electron gun of a CRT. With Yar's Revenge, Howard Warsaw needed a way to generate random data, but didn't have the resources left on the cart to do it. He then realised he could use the game's data as the source of this random sequence. An ingenious solution, but not the same problem as faced by programmers of the Electron.
My point was that both systems didn't have much RAM so the developers used game data in the screen area to their advantage. However, it also made the system flexible enough to outlive its competitors, including the Atari which succeeded it. It is incredible to think that a machine first released in was only discontinued in , after 15 years in production.
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