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.
Memory Area:audio_map
Address RangeLengthFunctionDescription
0x0000-0x03FF1024Mirror, RAM, Shared0x1c00, , audio_rambase
0x2000-0x3FFF8192Device Writeay1, ay8910_device, data_w
0x4000-0x5FFF8192Device Writeay1, ay8910_device, address_w
0x6000-0x7FFF8192Device Writeay2, ay8910_device, data_w
0x8000-0x9FFF8192Device Writeay2, ay8910_device, address_w
0xA000-0xBFFF8192Readaudio_command_r
0xC000-0xDFFF8192Writeaudio_nmi_enable_w
0xE000-0xEFFF4096Mirror, ROM0x1000,
Memory Area:btime_map
Address RangeLengthFunctionDescription
0x0000-0x07FF2048RAM, Sharedrambase
0x0C00-0x0C0F16RAM Device Write, Sharedpalette, palette_device, write, palette
0x1000-0x13FF1024RAM, Sharedvideoram
0x1400-0x17FF1024RAM, Sharedcolorram
0x1800-0x1BFF1024Read/Writebtime_mirrorvideoram_r, btime_mirrorvideoram_w
0x1C00-0x1FFF1024Read/Writebtime_mirrorcolorram_r, btime_mirrorcolorram_w
0x40001Read Port, Write NOPP1,
0x40011Read PortP2
0x40021Read Port, WriteSYSTEM, btime_video_control_w
0x40031Read Port, WriteDSW1, audio_command_w
0x40041Read Port, WriteDSW2, bnj_scroll1_w
0xB000-0xFFFF20480ROM
 

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:audiocpu
Address RangeLengthLabel/LocationDescription
0xE000-0xEFFF4096ab14.12hCRC(f55e5211) (Fluke: C58D)
Memory Area:bg_map
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048ab03.6bCRC(d26bc1f3) (Fluke: F643)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096ab12.7kCRC(6c79f79f),charset #1 (Fluke: D0FB)
0x1000-0x1FFF4096ab13.9kCRC(ac01042f) (Fluke: FAFB)
0x2000-0x2FFF4096ab10.10kCRC(854a872a) (Fluke: 304B)
0x3000-0x3FFF4096ab11.12kCRC(d4848014) (Fluke: 03D0)
0x4000-0x4FFF4096ab8.13kCRC(70b35bbe) (Fluke: F35B)
0x5000-0x5FFF4096ab9.15kCRC(8dec15e6) (Fluke: 22AF)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048ab00.1bCRC(c7a14485),charset #2 (Fluke: D1D1)
0x0800-0x0FFF2048ab01.3bCRC(25b49078) (Fluke: 45E5)
0x1000-0x17FF2048ab02.4bCRC(b8ef56c3) (Fluke: 4CFE)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0xB000-0xBFFF4096ab05a1.12bCRC(0a98b230) (Fluke: EBED)
0xC000-0xCFFF4096ab04.9bCRC(797e5f75) (Fluke: 988A)
0xD000-0xDFFF4096ab06.13bCRC(c77f3f64) (Fluke: 229A)
0xE000-0xEFFF4096ab05.10bCRC(b0d3640f) (Fluke: 21E7)
0xF000-0xFFFF4096ab07.15bCRC(a142f862) (Fluke: AE6C)
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