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yamato2: MAME ROM Information.


Yamato (c) 1983 Sega.


Main CPU : Z80 (@ 3.072 Mhz)

Sound CPU : Z80 (@ 3.072 Mhz)

Sound Chips : (2x) AY8910 (@ 1.536 Mhz)

Screen orientation : Vertical

Video resolution : 224 x 256 pixels

Screen refresh : 60.00 Hz

Palette colors : 352

Players : 2

Control : 8-way joystick

Buttons : 2


Released in March 1983.

Yamato is the name of a Japanese battleship that was sunk off Kyuushuu during World War II.


Security by : Masatoshi Mizunaga

Program by : L'Y


* Consoles :

Sega SG-1000 (1983)


Game's rom.

MAME Info:

0.35b9 [Nicola Salmoria]


- yamato, yamato2: Original PCB screen shot for reference. Smitdogg (ID 03809)


- 0.123u3: Zsolt Vasvari merged Yamato driver with Crazy Climber and cleaned up the video driver, mainly via tilemap conversion. Fixed gfx1 rom address to $2000.

- 0.118u6: Aaron Giles fixed crash after exiting the game.

- 0.102u5: Changed region cpu1 ($f000) to user1. Changed palettesize to 352 colors.

- 17th December 2005: Tomasz Slanina added temporary BG gradient (bad colors/offset). Gradient table are stored in two(?) ROMs. Each table is 256 bytes long: 128 for normal and 128 bytes for flipped screen. Color format is unknown - probably direct RGB mapping of 8 or 16 (both roms) bits. Also table selection source is unknown.

- 18th November 2005: Tomasz Slanina - Trying to add missing background, but colors are guess.

- 0.97u4: ShimaPong added 'Bonus Life' dipswitch.

- 0.69: Angelo Salese removed a graphic rom loading kludge in Yamato, which caused a bad gray square when launching missiles. Also fixed crashes in clone Yamato (World?). Fixed gfx2 roms addresses.

- 0.67: Changed description to 'Yamato (US)' and clone '(set 2)' to '(World?)'.

- 0.35b9: Nicola Salmoria added Yamato (set 1) and clone (set 2), preliminary. TODO: Two ROMs are not used, don't know what they are.

- 27th March 1999: Nicola got correct colors to Yamato.

- 26th March 1999: Nicola decrypted the last old Sega game, Yamato.

LEVELS: 99 (endless)

Recommended Games:

Missile X / Guided Missile

Tora Tora

Red Alert



D-Day (Jaleco)


Danger Zone

SDI - Strategic Defense Initiative


Fortress 2 Blue Arcade

Romset: 63 kb / 16 files / 30.6 zip

MAME XML Output:

       <game name="yamato2" sourcefile="cclimber.c" cloneof="yamato" romof="yamato">
              <description>Yamato (World?)</description>
              <rom name="2-2.5de" size="8192" crc="93da1d52" sha1="21b72856ebbd969e4e075b52719e6acdbd1bc4c5" region="maincpu" offset="0"/>
              <rom name="3-2.5f" size="8192" crc="31e73821" sha1="e582c9fcea1b29d43f65b6aa67e1895c38d2736c" region="maincpu" offset="2000"/>
              <rom name="4-2.5jh" size="8192" crc="fd7bcfc3" sha1="5037170cb3a9824794e90d74def92b0b25d45caa" region="maincpu" offset="4000"/>
              <rom name="1.5v" merge="1.5v" size="2048" crc="3aad9e3c" sha1="37b0414b265397881bb45b166ecab85880d1358d" region="audiocpu" offset="0"/>
              <rom name="10.11k" merge="10.11k" size="8192" crc="161121f5" sha1="017c5c6b773b0ae1d0be52e4bac90b699ea196dd" region="gfx1" offset="0"/>
              <rom name="9.11h" merge="9.11h" size="8192" crc="56e84cc4" sha1="c48e0e5460376d6b34173c42a27907ef12218182" region="gfx1" offset="2000"/>
              <rom name="8.11c" merge="8.11c" size="4096" crc="28024d9a" sha1="c871c4d74be72a8bfea99e89d43f91922f4b734b" region="gfx2" offset="0"/>
              <rom name="7.11a" merge="7.11a" size="4096" crc="4a179790" sha1="7fb6b033de939ff8bd13055c073311dca2c1a6fe" region="gfx2" offset="1000"/>
              <rom name="5.5lm" merge="5.5lm" size="4096" crc="7761ad24" sha1="98878b19addd142d35718080eece05eaaee0388d" region="user1" offset="0"/>
              <rom name="6.5n" merge="6.5n" size="4096" crc="da48444c" sha1="a43e672ce262eb817fb4e5715ef4fb304a6a2815" region="user1" offset="1000"/>
              <rom name="1.bpr" merge="1.bpr" size="32" crc="ef2053ab" sha1="2006cbf003f90a8e75f39047a88a3bba85d78e80" region="proms" offset="0"/>
              <rom name="2.bpr" merge="2.bpr" size="32" crc="2281d39f" sha1="e9b568bdacf7ab611801cf42ea5c7624f5440ef6" region="proms" offset="20"/>
              <rom name="3.bpr" merge="3.bpr" size="32" crc="9e6341e3" sha1="2e7a4d3c1f40d6089735734b9d9de2ca57fb73c7" region="proms" offset="40"/>
              <rom name="4.bpr" merge="4.bpr" size="32" crc="1c97dc0b" sha1="fe8e0a91172abdd2d14b199da144306a9b944372" region="proms" offset="60"/>
              <rom name="5.bpr" merge="5.bpr" size="32" crc="edd6c05f" sha1="b95db8aaf74fe175d1179f0d85f79242b16f5fb4" region="proms" offset="80"/>
              <chip type="cpu" tag="maincpu" name="Z80" clock="3072000"/>
              <chip type="cpu" tag="audiocpu" name="Z80" clock="3072000"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="ay1" name="AY-3-8910A" clock="1536000"/>
              <chip type="audio" tag="ay2" name="AY-3-8910A" clock="1536000"/>
              <display tag="screen" type="raster" rotate="90" width="256" height="224" refresh="60.000000" />
              <sound channels="1"/>
              <input players="2" buttons="2" coins="3">
                     <control type="joy" ways="8"/>
              <dipswitch name="Lives" tag="DSW" mask="3">
                     <dipvalue name="3" value="0" default="yes"/>
                     <dipvalue name="4" value="1"/>
                     <dipvalue name="5" value="2"/>
                     <dipvalue name="6" value="3"/>
              <dipswitch name="Coin A" tag="DSW" mask="28">
                     <dipvalue name="4 Coins/1 Credit" value="12"/>
                     <dipvalue name="3 Coins/1 Credit" value="8"/>
                     <dipvalue name="2 Coins/1 Credit" value="4"/>
                     <dipvalue name="1 Coin/1 Credit" value="0" default="yes"/>
                     <dipvalue name="2 Coins/3 Credits" value="24"/>
                     <dipvalue name="1 Coin/2 Credits" value="16"/>
                     <dipvalue name="1 Coin/3 Credits" value="20"/>
                     <dipvalue name="Free Play" value="28"/>
              <dipswitch name="Bonus Life" tag="DSW" mask="32">
                     <dipvalue name="Every 30000" value="0" default="yes"/>
                     <dipvalue name="Every 50000" value="32"/>
              <dipswitch name="Speed" tag="DSW" mask="64">
                     <dipvalue name="Slow" value="0" default="yes"/>
                     <dipvalue name="Fast" value="64"/>
              <dipswitch name="Cabinet" tag="DSW" mask="128">
                     <dipvalue name="Upright" value="128" default="yes"/>
                     <dipvalue name="Cocktail" value="0"/>
              <driver status="imperfect" emulation="good" color="good" sound="good" graphic="imperfect" savestate="unsupported" palettesize="352"/>

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