 | Listado temporal de Speedlocks |  |  | 20160702-2355 |  |
| Listado temporal de Speedlocks | | | 20160702-2355 | |
Julio empieza con las notas finales de los exámenes recientes. Al final solamente he suspendido una asignatura, cosa que casi agradezco porque si hubiese habido la menor lógica en esta locura de aventura debería haberlo suspendido todo.
| Byte stream | Version | Machine | Year and titles | Features | Transfer rate |
| simple, each physical block is a logical block | V.0 | Spectrum | 1984: Daley Thompson's Decathlon | * pilot tone divided into identical subtones and couples of edges * ~2000 baud, 7-bit ID * each block is a single set of bytes; bytes aren't encrypted * no text inside the loader | 150% |
| V.1 | CPC | 1986: Donkey Kong (CPC)
1987: Arkanoid (CPC) In general, every Speedlock tape for CPC released before 1987 | * pilot tone divided into sets of four -five in Mercenary- subtones and couples of edges * ~2000 baud, 5-bit ID * each block is a single set of bytes; bytes aren't encrypted * inside the CPC loader: SPEEDLOCK PROTECTION SYSTEM (C) 1985 D.LOOKER & D.AUBREY JONES : COPYRIGHT 1985 DJL SOFTWARE - ALL RIGHTS RESERVED! | ||
| V.2 | Spectrum | 1985: Bounty Bob Strikes Back
1986: Highway Encounter In general, every Speedlock tape for Spectrum released before 1986 | * pilot tone divided into sets of four subtones and couples of edges * ~2000 baud, 6-bit ID * each block is a single set of bytes; bytes aren't encrypted * inside the Spectrum loader: SPEEDLOCK Protection System V 3.1 © DJL Software & David Aubrey Jones 1985 * Government Health Warning - Attempting to crack SPEEDLOCK can damage your sanity! * | ||
| complex, each physical block can host multiple logical blocks | V.3 | CPC | 1987: Tarzan | * pilot tone divided into sets of four subtones and couples of edges * ~2000 baud, 5-bit ID * each block may be divided in several sets of bytes and 21-bit separators; bytes are encrypted * inside the CPC loader: SPEEDLOCK PROTECTION SYSTEM (C) 1985 D.LOOKER & D.AUBREY JONES : COPYRIGHT 1985 DJL SOFTWARE - ALL RIGHTS RESERVED! | |
| V.4 | Spectrum | 1986: Green Beret
1987: Head over Heels | * pilot tone divided into sets of four subtones and couples of edges * ~2000 baud, 6-bit ID * each block may be divided in several sets of bytes and 21-bit separators; bytes are encrypted * inside the Spectrum loader: SPEEDLOCK Protection System © DJL Software & D. Aubrey Jones 1984 - Tel:0793 724317 * Government Health Warning - Attempting to crack SPEEDLOCK can damage your sanity! * | ||
| V.5 | CPC | 1987: Combat School
1987: Renegade In general, every Speedlock tape for CPC released after 1987 | * pilot tone divided into sets of four subtones and couples of edges * ~1600 baud, 5-bit ID * each block may be divided in several sets of bytes and 21-bit separators; bytes are encrypted * no text inside the loader | 120% | |
| V.6 | Spectrum | NO KNOWN TITLES | * pilot tone divided into sets of four subtones and couples of edges * ~1600 baud, 6-bit ID * each block may be divided in several sets of bytes and 21-bit separators; bytes are encrypted * no text inside the loader | ||
| V.7 | CPC | NO KNOWN TITLES | * simple pilot tone followed by sixteen SYNC's * ~1600 baud, 5-bit ID * each block may be divided in several sets of bytes and 21-bit separators; bytes are encrypted * no text inside the loader | ||
| V.8 | Spectrum | 1987: Gryzor
1987: Target Renegade In general, every Speedlock tape for Spectrum released after 1987 | * simple pilot tone followed by sixteen SYNC's * ~1600 baud, 6-bit ID * each block may be divided in several sets of bytes and 21-bit separators; bytes are encrypted * no text inside the loader |
Cambiando de tema, estoy intentando hacer una enumeración ordenada de las variantes de Speedlock, el método de grabación en cinta creado por ambos Davides (D.Aubrey Jones y D.Looker), ya que deseo implementar tanto las versiones de Spectrum como las de CPC en CSW2CDT pero para ello necesito ordenarlas debidamente. Arriba tenéis un primer intento, en inglés, todavía no muy claro. De momento solamente considero las características puramente físicas de la señal; no me interesan las propiedades lógicas (almacenamiento, cifrado, etc) porque son irrelevantes para la digitalización de la señal. ¿Con quién podría hablar sobre el tema?
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