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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.
Tail to Nose - Great Championship (V-System Co., 1989)
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0x3FFFF262144ROM
0x200000-0x27FFFF524288ROM, Regionuser1, 0 (/* extra ROM */)
0x2C0000-0x2DFFFF131072ROM, Regionuser2, 0
0x400000-0x41FFFF131072RAM Write, Sharedtail2nos_zoomdata_w, k051316
0x500000-0x500FFF4096Device Read/Write 8-bitk051316, k051316_device, read, write, 0x00ff
0x510000-0x51001F32Device Write 8-bitk051316, k051316_device, ctrl_w, 0x00ff
0xFF8000-0xFFBFFF16384RAM(/* work RAM */)
0xFFC000-0xFFC2FF768RAM, Sharedspriteram
0xFFC300-0xFFCFFF3328RAM
0xFFD000-0xFFDFFF4096RAM Write, Sharedtail2nos_txvideoram_w, txvideoram
0xFFE000-0xFFEFFF4096RAM Device Write, Sharedpalette, palette_device, write, palette
0xFFF000-0xFFF0012Read Port, WriteINPUTS, tail2nos_gfxbank_w
0x0001UnknownActive Low
0x0002UnknownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0x0100Coin 1Active Low
0x0200Coin 2Active Low
0x0400Start 1Active Low
0x0800Start 2Active Low
0x1000Test AdvanceActive Low
0x2000UnknownActive Low
0x4000Service 1Active Low
0x8000UnknownActive Low
0xFFF004-0xFFF0052Read PortDSW
0x00095C_1CActive High
0x00084C_1CActive High
0x00073C_1CActive High
0x00062C_1CActive High
0x000b6 Coins/4 CreditsActive High
0x000c4C_3CActive High
0x00001C_1CActive High
0x000d5 Coins/6 CreditsActive High
0x000e4C_5CActive High
0x000a2C_3CActive High
0x000f2C_3CActive High
0x00011C_2CActive High
0x00021C_3CActive High
0x00031C_4CActive High
0x00041C_5CActive High
0x00051C_6CActive High
0x00905C_1CActive High
0x00804C_1CActive High
0x00703C_1CActive High
0x00602C_1CActive High
0x00b06 Coins/4 CreditsActive High
0x00c04C_3CActive High
0x00001C_1CActive High
0x00d05 Coins/6 CreditsActive High
0x00e04C_5CActive High
0x00a02C_3CActive High
0x00f02C_3CActive High
0x00101C_2CActive High
0x00201C_3CActive High
0x00301C_4CActive High
0x00401C_5CActive High
0x00501C_6CActive High
0x0100EasyActive High
0x0000NormalActive High
0x0200HardActive High
0x0300HardestActive High
0x0400OffActive High
0x0000OnActive High
0x1000SingleActive High
0x0000MultipleActive High
0x0000OffActive High
0x2000OnActive High
0x4000StandardActive High
0x0000OriginalActive High
0x0000DomesticActive High
0x8000OverseasActive High
0xFFF008-0xFFF0092Writesound_command_w
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0x77FF30720ROM
0x7800-0x7FFF2048RAM
0x8000-0xFFFF32768ROM Bankbank3
Memory Area:sound_port_map
Address RangeLengthFunctionDescription
0x00071Device Read, Write NOPsoundlatch, generic_latch_8_device, read, (/* the write is a clear pending command */)
0x0008-0x000B4Device Writeymsnd, ym2608_device, write
0x0018-0x001B4Device Readymsnd, ym2608_device, read
 

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
0x0000-0x7FFF32768v2CRC(920d8920) (Fluke: D85B)
0x10000-0x1FFFF65536v1CRC(bf35c1a4) (Fluke: 4859)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288a24CRC(b1e9de43) (Fluke: A366)
0x80000-0xBFFFF262144o1sCRC(e27a8eb4) (Fluke: C750)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF262144oj1CRC(39c36b35) (Fluke: 1459)
0x40000-0x7FFFF262144oj2CRC(77ccaea2) (Fluke: 8BC6)
Memory Area:ymsnd
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072osbCRC(d49ab2f5) (Fluke: A3B8)
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