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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.
Densha de GO! 2 Kousoku-hen 3000-bandai (Taito, 1998)
Memory Area:dendego_map
Address RangeLengthFunctionDescription
0x6E00000-0x6E000034Write 8-bitdendego_speedmeter_w, 0x00ff0000
0x6E00004-0x6E000074Write 8-bitdendego_brakemeter_w, 0x00ff0000
0x6E0000C-0x6E0000F4Device Read/Write 8-bitoki, okim6295_device, read, write, 0x00ff0000
Memory Area:hc11_io_map
Address RangeLengthFunctionDescription
0x00001Read/Writehc11_comm_r, hc11_comm_w
0x00001Read/Writehc11_output_r, hc11_output_w
0x00001Read NOP(// ?)
0x00001Readhc11_analog_r
0x00001Read/Writehc11_data_r, hc11_data_w
Memory Area:hc11_pgm_map
Address RangeLengthFunctionDescription
0x4000-0x5FFF8192RAM
0x8000-0xFFFF32768ROM
Memory Area:taitojc_map
Address RangeLengthFunctionDescription
0x0000-0x1FFFFF2097152ROM, Mirror0x200000
0x400000-0x1BFFFFF25165824ROM, Regiongfx1, 0
0x4000000-0x40F7FFF1015808RAM, Sharedvram
0x40F8000-0x40FBFFF16384Read/Writetaitojc_tile_r, taitojc_tile_w
0x40FC000-0x40FEFFF12288Read/Writetaitojc_char_r, taitojc_char_w
0x40FF000-0x40FFFFF4096RAM, Sharedobjlist
0x5800000-0x580003F64Read 8-bitjc_pcbid_r, 0xffffffff
0x5900000-0x59000078Read/Write 8-bitmcu_comm_r, mcu_comm_w, 0xffffffff
0x6400000-0x641FFFF131072Read/Write, Sharedtaitojc_palette_r, taitojc_palette_w, palette_ram
0x6600000-0x660001F32Device Read/Write 8-bittc0640fio, tc0640fio_device, read, write, 0xff000000
0x660004C-0x660004F4Write PortEEPROMOUT
0x6800000-0x68000034Write 8-bitjc_irq_unk_w, 0x00ff0000
0x6A00000-0x6A01FFF8192Read/Write, Sharedsnd_share_r, snd_share_w, snd_shared
0x6C00000-0x6C0001F32Read/Write 8-bitjc_lan_r, jc_lan_w, 0x00ff0000
0x8000000-0x80FFFFF1048576RAM, Sharedmain_ram
0x10000000-0x10001FFF8192Read/Write 16-bitdsp_shared_r, dsp_shared_w, 0xffff0000
0x10001FF8-0x10001FFB4Read 16-bitdsp_to_main_7fe_r, 0xffff0000
0x10001FFC-0x10001FFF4Write 16-bitmain_to_dsp_7ff_w, 0xffff0000
Memory Area:tms_program_map
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192RAM, Mirror0x4000
0x6000-0x7FFF8192RAM
 

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:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFFF2097152e52-01.ic5CRC(8db39c3c) (Fluke: 6975)
0x0000-0x3FFFF262144e35-28.trnCRC(d1b571c1) (Fluke: 9A21)
0x200000-0x3FFFFF2097152e52-02.ic6CRC(b8d6f066) (Fluke: 9940)
0x400000-0x5FFFFF2097152e52-03.ic7CRC(a37d164b) (Fluke: 22DA)
0x600000-0x7FFFFF2097152e52-04.ic8CRC(403a4142) (Fluke: BB68)
0x800000-0x9FFFFF2097152e52-09.ic18CRC(830e0a3c) (Fluke: 70CC)
0xA00000-0xBFFFFF2097152e52-10.ic19CRC(671e41c6) (Fluke: F37F)
0xC00000-0xDFFFFF2097152e52-11.ic20CRC(1bc22680) (Fluke: 1377)
0xE00000-0xFFFFFF2097152e52-12.ic21CRC(a8bb91c5) (Fluke: 23F6)
Memory Area:sub
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536e17-23.ic65CRC(80ac1428) (Fluke: EC3B)
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