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wcvol95: MAME ROM Information.

History:

World Cup Volley '95 (c) 1995 Data East.

- TECHNICAL -

Main CPU : ARM (@ 14 Mhz)

Sound Chips : YMZ280B (@ 14 Mhz)

Screen orientation : Horizontal

Video resolution : 320 x 240 pixels

Screen refresh : 58.00 Hz

Palette colors : 1024

Players : 2

Control : 8-way Joystick

Buttons : 6

- STAFF -

Graphic Advisor : Shintoku

Sound Programmer : Oww Furukawa

Sound Designer : Maro

Translator/Voice : Steve Miller

- SOURCES -

Game's rom.

MAME Info:

0.84 [David Haywood]

WIP:

- 0.136u4: Fabio Priuli added driver_data class and save states to DECO156 driver.

- 0.135u2: Fabio Priuli converted the DECO156 driver to use EEPROM device.

- 0.122u6: David Haywood tweaked deco156 clock speed to be 28 to prevent the games from running in slow motion. I suspect the 156 chip has an internal multiplier, the usual input pin is 7Mhz IIRC. Changed ARM CPU1 clock speed to 28MHz.

- 0.109u4: Robiza fixed VIDEO_UPDATE in Heavy Smash and World Cup Volley '95.

- 0.103u3: David Haywood added BCD multiply to ARM coprocessor to fix World Cup Volley '95. Converted World Cup Volley '95 and Heavy Smash to use the 16-bit DECO tilemap functions.

- 12th January 2006: David Haywood - The MAME Italia Forum guys reported a bug in World Cup Volley '95 causing it to hang after each match, I've fixed that and also fixed some sprite problems which occured during the game.

- 0.103u2: Tomasz Slanina modified ARM CPU core to allow World Cup Volley '95 to start. Pierpaolo Prazzoli added sound to World Cup Volley '95. Bryan McPhail and David Haywood fixed it also - Game now playable.

- 9th January 2006: David Haywood - Dox found what appears to be a bug in the ARM core, a workaround allows World Cup Volley '95 to boot, and a few fixes to the Co-Processor gets proper working credits and timers. The game is quite playable, although seems too easy, maybe due to other copro bugs.

- 0.103u1: Changed description to 'World Cup Volley '95 (Japan v1.0)'. Changed ARM CPU1 clock speed to 14MHz. Added YMZ280B (14Mhz) sound. Changed visible area to 320x240.

- 0.98u4: Bunch of changes/fixes to the DECO156 drivers [David Haywood]: Hooked up EEPROM correctly. Fixed sound ROM decoding and banking. Fixed tile banking. Fixed video priorities.

- 31st July 2005: David Haywood - Final 156 update for tonight... General: Added Sprites, EEPROM settings don't work on any game and No Sound. Magical Drop / Magical Drop Plus / Chain Reaction: This is highly unstable and prone to crashing, I'm not too sure if its due to protection or CPU bugs, none of the other games behave this badly. Gameplay is also very sluggish. Osman / Cannon Dancer: Still doesn't boot without going into the debugger. Has problems with Sprite colours (16-bit ram on 32-bit bus maybe?) and tile banking. Also tilemaps don't seem large enough at the moment. Party Time: Seems quite playable, some tile bank problems. Charlie Ninja: Tilemaps aren't big enough, sprites are a bad dump, some scrolling problems on title screen.. (I'm sure it was ok before). Joe And Mac Returns: Playable, although I can set it to either a very fast speed, or a very sluggish speed depending on Vblank, I'm not sure which is correct... Completed a few levels and it didn't crash so it seems ok.

- 30th July 2005: David Haywood - 3 Weeks of staring at numbers solid until 4am, a bit of teamwork with key developers, and we have our first results... (Magical Drop (Deco 156) shows the message: WARNING - GAME MODE SETTING ERROR). Its not much, but maybe a sign of things to come. Update: I moved from Magical Drop to Joe and Mac Returns. Note that the tile roms on both sets are bad dumps, hence the corruption in the screenshots. Sprites haven't been added. Fixed the tile banking for the platforms. 2nd Update: Found a way to get Osman to boot via the debugger and it appears we can fix the Joe & Mac Returns tile rom by using bits from each of the bad dumps. None of these will be playable until the protection has been worked out however.

- 0.98u2: Some progress on the Deco 156 encryption [David Haywood].

- 0.84: David Haywood added World Cup Volley '95 (Data East 1993). All games on this driver have encrypted code, they may also have additional protection but at this stage that is unknown. The current hold-up is the encryption. They use Data East Custom Chip 'DE156' which is probably the main processor. It might be an encrypted ARM7 based cpu. This driver may be split up when (if) the actual code is decrypted as the games are not on identical hardware.

- 3rd November 2002: Guru - World Cup Volley '95 (Data East 1995) arrived from Japan. Thanks to WTC.

LEVELS: 11

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Romset: 5632 kb / 6 files / 3.64 zip

MAME XML Output:

<description>World Cup Volley '95 (Japan v1.0)</description>

<manufacturer>Data East Corporation</manufacturer>

</input>

</game>

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