Changed some "BIN" to "CAS" added misc comments about info from photos. 0.146: Changed some dongle names based on photos. A few games have been added to MAME recently and it's likely there will be more additions in the future, as we keep finding tapes and dongles to dump from generous donors. Software has been developed to extract the PROM data out of dongle dumps and to perform detailed analysis of the decryption features of various dongles, and to determine internal jumper settings to see how a dongle is configured without even opening it up. Many different dongle types have been examined and supported, and currently all known dongle types can be dumped.
7th July 2012: Charles MacDonald - Quite a lot of progress has been made with the Data East cassette system dumping efforts. DECO Cassette System modernized and cleaned. Moved machine\decocass.h to includes\decocass.h. 0.147u1: Added machine\decocass_tape.c/h and includes\decocass.h. Fixed Visual Studio warning about use of potentially uninitialized variable. Note: The Astro Fantasia and Graplop videos we have are for different (undumped) revisions of the game, I suspect there are many and that Data East used this system as a ***** way to prototype games. Some working notes, comparisons with reference videos. Added proper x-scroll handling for the decocass background, and some notes for further cleanup work regarding the background 'tilemap' - this improves Manhattan and several others. Make the DECO222 handling in decocass transparent to the driver. Refactor the type1 dongle code a bit, to make any future additions easier. 0.148u1: Fixed debug compile (machine\decocass.c). 23rd August 2013: Smitdogg - Kevin Eshbach dumped an early version of the Deco Cassette system. Documentation on the earlier version of the Deco Cassette System. 0.150: Modernized decocass_tape device (machine\decocass_tape.c). Reference videos show that color is still 100% wrong. This stops the headlight in Highway Chase from bouncing all over the screen and makes the shadow stick to Skater's toe. 0.174: Fixed positioning of object sprite. 0.179: Tagged all the DECO Cassette sets as US / Japan based on which BIOS type they use (A = Japan, B = US/World, they aren't compatible, using the wrong one will give a loading error). The data is stored in blocks with headers and checksums. Each cassette has two tracks on it: a clock track and a data track, for a form of synchronous serial. The actual cassettes use a custom player hooked to the BIO board, and are roughly microcassette form factor, but are larger and will not fit in a conventional microcassette player. DECO Cassette System driver by Juergen Buchmueller with contributions by: David Widel, Nicola Salmoria, Aaron Giles, Brian Troha, Fabio Priuli, Lord Nightmare and The Dumping Union.
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