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emeralda: MAME ROM Information.


Emeraldia (c) 1993 Namco.

A puzzle game where the player must line up squares of the same color. When three tiles have been stacked in a vertical row, they crack. When a fourth square of same color lands on the cracked ones, all four squares disappear.


Namco System NA-1 hardware

Game ID : EM

Main CPU : 68000 (@ 12.52825 Mhz), M37710 (@ 12.52825 Mhz)

Sound Chips : C140 (@ 42.667 Khz)

Players : 4

Control : 8-way joystick

Buttons : 3


Released in July 1993.

Soundtrack releases :

Namco Video Game Graffiti Vol.10 [Victor Entertainment - VICL-40098 - Dec 16, 1993]


Composed by : Yoshie Arakawa


* Consoles :

Nintendo Wii (2009, "Virtual Console Arcade")


Game's rom.

MAME Info:

0.106u11 [Brian Troha]

0.37b12 [Phil Stroffolino]

< Japan >


- The rotating logo is garbled. Terryn (ID 02357)


- 0.133u1: Renamed (emeraldj) to (emeraldaj) and (emerldja) to (emeraldaja).

- 0.127u4: Added M37702 MCU rom (c70.bin - 16k). Replaced Namco NA sound with M37702 (12528250 Hz) CPU2 and C140 (44100 Hz) sound. Replaced M37710 CPU2 with M37702 in clones (Japan) and (Japan Version B).

- 0.125u4: Changed C140 clock speed to 44100 Hz in clones Emeraldia (Japan) and (Japan Version B).

- 0.125u2: Phil Stroffolino fixed long-standing bug with Emeralda text colors. A sprite attribute exists which signals an alternate interpretation of palette ram. Added a mask when processing the ROZ tilemap to avoid defects in Emeraldia (Japan Version B).

- 16th May 2008: Phil Stroffolino - I've unraveled some of the last few mysteries of Namco's NA1 system hardware. The "rotate and zoom" layer so far appears to only be used by a single game, Emeralda. The single oddest feature I encountered was a spriteram attribute that causes the palette to be interpretted in a radically different manner. This fixes the onscreen score text in Emeralda, which, now that it is correctly emulated, features color gradients and anti-aliasing. This same effect could have been accomplished more-or-less equivalently with the standard -rrrrrgggggbbbbb palette. I'm baffled as to why hardware designers and software would have implemented the feature in such a roundabout manner. A screenshot featuring the corrected colors is featured below.

- 0.125u1: Phil Stroffolino fixed the ROZ effect in Namco NA1 driver. This adds a missing NAMCO logo zoom/spin effect in Emeralda's attract mode. Also added support for scanline effect (this fixes invisible dolphin in Emeralda attract mode).

- 0.124u2: Pierpaolo Prazzoli enabled ROZ tilemap in Emeraldia, but it's not centered in the right position when it's not in its original dimension.

- 0.124u1: Pierpaolo Prazzoli removed Emeraldia hack and changed background pen to fix Emeraldia demo.

- 20th September 2006: Dumping Project - Purchased Emeraldia (World set). Thank go to the fivepeople who recently donated after the last request. A special thanks goes to Kevin.

- 0.106u11: Brian Troha added Emeraldia (World). Renamed (emeralda) to (emeraldj) and (emerldaa) to (emerldja).

- 0.60: Added clone Emeraldia (Japan).

- 25th June 2001: David Haywood added another Emeraldia romset to the Namco NA-1 driver.

- 0.37b14: Changed description to 'Emeraldia (Japan)'.

- 0.37b12: Phil Stroffolino added Emeraldia (Namco 1993).

- 19th January 2001: Phil Stroffolino re-submitted the Namco NA1/2 drivers, with Emeralda, Tinkle Pit and Cosmo Gang the Puzzle as completely playable games. The rest run through the attract mode but suffer from unmapped input ports.

- 16th September 2000: Phil Stroffolino sent in an improved Namco NA-1/2 driver, adding support for Exbania, Nettou! Gekitou! Quiztou!!, Super World Court, F/A (Cosmo Gang the Puzzle, Tinkle Pit and Emeraldia were added back in June).

- 7th September 2000: Phil Stroffolino sent in the Namco NA-1 driver, still supporting Cosmo Gang the Puzzle, Tinkle Pit and Emeraldia.

- 12th August 2000: Phil Stroffolino sent in the Namco NA-1 system driver, semi-working games are Cosmo Gang the Puzzle, Emeraldia and Tinkle Pit.

- 26th June 2000: Phil Stroffolino sent in a preliminary Namco NA-1 driver, which supports Cosmo Gang the Puzzle, Tinkle Pit and Emeraldia as nearly playable games.


Romset: 2064 kb / 5 files / 744.0 zip

MAME XML Output:

       <game name="emeralda" sourcefile="namcona1.c">
              <description>Emeraldia (World)</description>
              <rom name="em2-ep0l.6c" size="524288" crc="ff1479dc" sha1="ea945d97ed909be13fb6e062742c7142c0d96c31" region="maincpu" offset="80001"/>
              <rom name="em2-ep0u.6f" size="524288" crc="ffe750a2" sha1="d10d31489ae364572d7517dd515a6af2182ac764" region="maincpu" offset="80000"/>
              <rom name="em2-ep1l.7c" size="524288" crc="6c3e5b53" sha1="72b941e28c7fda8cb81240a8226386fe55c14e2d" region="maincpu" offset="180001"/>
              <rom name="em2-ep1u.7f" size="524288" crc="dee15a81" sha1="474a264029bd77e4205773a7461dea695e65933f" region="maincpu" offset="180000"/>
              <rom name="c70.bin" size="16384" crc="b4015f23" sha1="7ce91eda76e86b5cab625e2b67c463b7d143832e" region="mcu" offset="0"/>
              <chip type="cpu" tag="maincpu" name="68000" clock="12528250"/>
              <chip type="cpu" tag="mcu" name="M37702" clock="12528250"/>
              <chip type="audio" tag="lspeaker" name="Speaker"/>
              <chip type="audio" tag="rspeaker" name="Speaker"/>
              <chip type="audio" tag="c140" name="C140" clock="44100"/>
              <display tag="screen" type="raster" rotate="0" width="288" height="224" refresh="60.000000" />
              <sound channels="2"/>
              <input players="4" buttons="3" coins="4">
                     <control type="joy" ways="8"/>
              <dipswitch name="DIP2 (Freeze)" tag="DSW" mask="1">
                     <dipvalue name="Off" value="1" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="DIP1 (Test)" tag="DSW" mask="2">
                     <dipvalue name="Off" value="2" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Service Mode" tag="DSW" mask="64">
                     <dipvalue name="Off" value="64" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <driver status="good" emulation="good" color="good" sound="good" graphic="good" savestate="unsupported" palettesize="8192"/>

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