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miniboy7a: MAME ROM Information.


Mini-Boy 7 [Model BE-7000/MBS] (c) 1983 Bonanza.


Main CPU : M6502 (@ 625 khz)

Screen orientation : Horizontal

Video resolution : 296 x 296 pixels

Screen refresh : 60.00 Hz

Palette colors : 256


Game's rom.

Machine's picture.

MAME Info:

0.139u1 [Roberto Fresca, Siftware]

0.116u2 [Roberto Fresca]


- Screen photos of Bonanza Enterprises' Mini Boy 7 countertop game enclosed for reference. gregf (ID 01072)


- 0.139u1: Roberto Fresca and Siftware added Mini Boy 7 (set 1). Mini Boy 7 improvements [Roberto Fresca]: Added a new complete set. Now set as parent. Corrected Xtal frequency. Mapped the PIA MC6821 (not wired since is not totally understood). Preliminary attempt to decode the color PROM. Mapped the AY-3-8910, but still needs ports and some checks. Added debug and technical notes. Changed description of clone 'Mini Boy 7' to 'Mini Boy 7 (set 2)'. Renamed (miniboy7) to (miniboy7a).

- 0.116u2: Roberto Fresca added Mini Boy 7 (Bonanza Enterprises, Ltd 1983).

- 20th June 2007: Roberto Fresca - Some program ROMs are bad in Mini Boy 7. Also the color PROM is not dumped. This driver was made analyzing the program ROMs due to lack of information, pics, etc... The game isn't working. Confirmed the CPU as 6502. Confirmed the CRT controller as 6845. Corrected the total & visible area analyzing the 6845 registers. Crystal documented via #define. CPU clock derived from #defined crystal value. Decoded all gfx properly. Partially worked the GFX banks: 2 bank (1bpp) for text layers and minor graphics. 1 bank (3bpp) for cards, jokers, dices and big text graphics.

Romset: 77 kb / 12 files / 29.9 zip

MAME XML Output:

       <game name="miniboy7a" sourcefile="miniboy7.c" cloneof="miniboy7" romof="miniboy7">
              <description>Mini Boy 7 (set 2)</description>
              <manufacturer>Bonanza Enterprises, Ltd</manufacturer>
              <rom name="mb7111.8a" size="8192" crc="1b7ac5f0" sha1="a52052771fcce688afccf9f0c3e3c2b5e7cec4e4" status="baddump" region="maincpu" offset="4000"/>
              <rom name="mb7211.7a" size="8192" crc="ac9b66a6" sha1="66a33e475de4fb3ffdd9a68a24932574e7d78116" region="maincpu" offset="6000"/>
              <rom name="mb7311.6a" size="8192" crc="99f2a063" sha1="94108cdc574c7e9400fe8a249b78ba190d10502b" status="baddump" region="maincpu" offset="8000"/>
              <rom name="mb7411.5a" size="8192" crc="99f8268f" sha1="a4ca98dfb5df86fe45f33e291bf0c40d1f43ae7c" region="maincpu" offset="a000"/>
              <rom name="mb7511.4a" size="8192" crc="2820ae91" sha1="70f9b3823733ae39d153948a4006a5972204f482" status="baddump" region="maincpu" offset="c000"/>
              <rom name="mb7611.3a" size="8192" crc="ca9b9b20" sha1="c6cd793a15948601faa051a4643b14fd3d8bda0b" region="maincpu" offset="e000"/>
              <rom name="mb70.11d" merge="mb7_asc_cg.d11" size="4096" crc="84f78ee2" sha1="c434e8a9b19ef1394b1dac67455f859eef299f95" region="gfx1" offset="0"/>
              <rom name="mb71.12d" merge="mb7_cg1.d12" size="8192" crc="5f3e3b93" sha1="41ab6a42a41ddeb8b6b76f4d790bf9fb9e7c32a3" region="gfx2" offset="0"/>
              <rom name="mb72.13d" merge="mb7_cg2.d13" size="8192" crc="b3362650" sha1="603907fd3a0049c0a3e1858c4329bf9fd58137f6" region="gfx2" offset="2000"/>
              <rom name="mb73.14d" merge="mb7_cg3.d14" size="8192" crc="10c2bf71" sha1="23a01625b0fc0b772054ee4bc026d2257df46a03" region="gfx2" offset="4000"/>
              <rom name="mb7_24s10n.bin" size="256" status="nodump" region="proms" offset="0"/>
              <chip type="cpu" tag="maincpu" name="M6502" clock="779531"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="ay8910" name="AY-3-8910A" clock="1559062"/>
              <display tag="screen" type="raster" rotate="0" width="296" height="296" refresh="60.000000" />
              <sound channels="1"/>
              <input players="0">
              <driver status="preliminary" emulation="preliminary" color="preliminary" sound="preliminary" graphic="good" savestate="unsupported" palettesize="256"/>

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