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Memory Map

The following is a memory map that was generated based on the MAME source code (.180).  This information is only as accurate as the MAME driver is.  If you see any errors, please let me know what that error is.
 
The Memory Area is related to where the information is from (CPU, Sound Board, etc..), and it may also reflect what it has in common with other hardware.
DJ Boy (Kaneko (American Sammy license), 1989)
Memory Area:cpu0_am
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xAFFF12288ROM Bankbank4
0xB000-0xBFFF4096Device Read/Writepandora, kaneko_pandora_device, spriteram_r, spriteram_w
0xC000-0xDFFF8192ROM Bankbank1
0xE000-0xEFFF4096RAM, Sharedshare1
0xF000-0xF7FF2048RAM
0xF800-0xFFFF2048RAM
Memory Area:cpu0_port_am
Address RangeLengthFunctionDescription
0x00001Writecpu0_bankswitch_w
Memory Area:cpu1_am
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xBFFF16384ROM Bankbank2
0xC000-0xCFFF4096RAM Write, Shareddjboy_videoram_w, videoram
0xD000-0xD3FF1024RAM Write, Shareddjboy_paletteram_w, paletteram
0xD400-0xD8FF1280RAM
0xE000-0xFFFF8192RAM, Sharedshare1
Memory Area:cpu1_port_am
Address RangeLengthFunctionDescription
0x00001Writecpu1_bankswitch_w
0x00021Writetrigger_nmi_on_sound_cpu2
0x00041Read/Writebeast_data_r, beast_data_w
0x00061Writedjboy_scrolly_w
0x00081Writedjboy_scrollx_w
0x000A1Writetrigger_nmi_on_cpu0
0x000C1Readbeast_status_r
0x000E1Writecoin_count_w
Memory Area:cpu2_am
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xBFFF16384ROM Bankbank3
0xC000-0xDFFF8192RAM
Memory Area:cpu2_port_am
Address RangeLengthFunctionDescription
0x00001Writecpu2_bankswitch_w
0x0002-0x00032Device Read/Writeymsnd, ym2203_device, read, write
0x00041Device Readsoundlatch, generic_latch_8_device, read
0x00061Device Read/Writeoki1, okim6295_device, read, write
0x00071Device Read/Writeoki2, okim6295_device, read, write
Memory Area:djboy_mcu_io_map
Address RangeLengthFunctionDescription
0x00001Read/Writebeast_p2_r, beast_p2_w
0x00001Read/Writebeast_p3_r, beast_p3_w
0x00001Read/Writebeast_p1_r, beast_p1_w
0x00001Read/Writebeast_p0_r, beast_p0_w
 

ROM Map for this game

 
This is the ROM map for the game.  This should tell you what address the ROM is at, how big it is, what it's used for.   
Memory Area:beast
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096beast.9sCRC(ebe0f5f3),Internal ROM image
0x0000-0x0FFF4096beast.9sCRC(ebe0f5f3),Internal ROM image
Memory Area:cpu1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768bs65.5yCRC(0f1456eb) (Fluke: AB45)
0x18000-0x37FFF131072bs101.6wCRC(a7c85577) (Fluke: 997A)
0x18000-0x37FFF131072bs101.6wCRC(a7c85577) (Fluke: 997A)
Memory Area:cpu2
Address RangeLengthLabel/LocationDescription
0x0000-0xBFFF49152bs200.8cCRC(f6c19e51) (Fluke: A3FE)
0x0000-0xBFFF49152bs200.8cCRC(f6c19e51) (Fluke: A3FE)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288bs000.1hCRC(be4bf805) (Fluke: 2A1A)
0x0000-0x7FFFF524288bs000.1hCRC(be4bf805) (Fluke: 2A1A)
0x80000-0xFFFFF524288bs001.1fCRC(fdf36e6b) (Fluke: 5A97)
0x80000-0xFFFFF524288bs001.1fCRC(fdf36e6b) (Fluke: 5A97)
0x100000-0x17FFFF524288bs002.1dCRC(c52fee7f) (Fluke: E882)
0x100000-0x17FFFF524288bs002.1dCRC(c52fee7f) (Fluke: E882)
0x180000-0x1FFFFF524288bs003.1kCRC(ed89acb4) (Fluke: 3937)
0x180000-0x1FFFFF524288bs003.1kCRC(ed89acb4) (Fluke: 3937)
0x1F0000-0x1FFFFF65536bs07.1bCRC(d9b7a220) (Fluke: B4FD)
0x1F0000-0x1FFFFF65536bs07.1bCRC(d9b7a220) (Fluke: B4FD)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288bs004.1sCRC(2f1392c3) (Fluke: 540D)
0x0000-0x7FFFF524288bs004.1sCRC(2f1392c3) (Fluke: 540D)
0x80000-0xFFFFF524288bs005.1uCRC(46b400c4) (Fluke: 9725)
0x80000-0xFFFFF524288bs005.1uCRC(46b400c4) (Fluke: 9725)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768bs64.4bCRC(b77aacc7) (Fluke: CA53)
0x28000-0x47FFF131072bs100.4dCRC(081e8af8) (Fluke: 88F7)
0x28000-0x47FFF131072bs100.4dCRC(081e8af8) (Fluke: 88F7)
Memory Area:oki1
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF262144bs203.5jCRC(805341fb) (Fluke: C030)
0x0000-0x3FFFF262144bs203.5jCRC(805341fb) (Fluke: C030)
0x0000-0x3FFFF262144bs203.5jCRC(805341fb) (Fluke: C030)
0x0000-0x3FFFF262144bs203.5jCRC(805341fb) (Fluke: C030)
Memory Area:oki2
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF262144bs203.5jCRC(805341fb) (Fluke: C030)
0x0000-0x3FFFF262144bs203.5jCRC(805341fb) (Fluke: C030)
0x0000-0x3FFFF262144bs203.5jCRC(805341fb) (Fluke: C030)
0x0000-0x3FFFF262144bs203.5jCRC(805341fb) (Fluke: C030)
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