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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.
Rettou Juudan Nekkyoku Janshi - Higashi Nippon Hen (Video System Co., 1988)
Memory Area:nekkyoku_main_map
Address RangeLengthFunctionDescription
0x0000-0xBFFF49152ROM
0xC000-0xDFFF8192RAM
0xF0001Read Port, WriteSERVICE, fromance_portselect_w
0x0001UnusedActive Low
0x0002UnusedActive Low
0x0004UnusedActive Low
0x0008UnusedActive Low
0x0010UnusedActive Low
0x0020UnusedActive Low
0x0040UnusedActive Low
0x0080UnusedActive Low
0xF0011Read, Write NOPfromance_keymatrix_r,
0xF0021Read Port, WriteCOIN, fromance_coinctr_w
0x0001UnusedActive Low
0x0002UnusedActive Low
0x0004UnusedActive Low
0x0008UnusedActive Low
0x0010UnusedActive Low
0x0020UnusedActive Low
0x0040Coin 1Active Low
0x0080UnusedActive Low
0xF0031Read/Writefromance_busycheck_main_r, fromance_commanddata_w
0xF0041Read PortDSW2
0x0000OffActive High
0x0001OnActive High
0x0000OffActive High
0x0002OnActive High
0x0000OffActive High
0x0004OnActive High
0x0000OffActive High
0x0008OnActive High
0x0000OffActive High
0x0010OnActive High
0x0000OffActive High
0x0020OnActive High
0x0000OffActive High
0x0040OnActive High
0x0000OffActive High
0x0080OnActive High
0xF0051Read PortDSW1
0x0000OffActive High
0x0001OnActive High
0x0000OffActive High
0x0002OnActive High
0x0000OffActive High
0x0004OnActive High
0x0000OffActive High
0x0008OnActive High
0x0000OffActive High
0x0010OnActive High
0x0000OffActive High
0x0020OnActive High
0x0000OffActive High
0x0040OnActive High
0x0000OffActive High
0x0080OnActive High
Memory Area:nekkyoku_sub_io_map
Address RangeLengthFunctionDescription
0x00101Writefromance_crtc_data_w
0x00111Writefromance_crtc_register_w
0x00121Read NOP(// unknown)
0x00E01Writefromance_rombank_w
0x00E11Read, Writefromance_busycheck_sub_r, fromance_gfxreg_w
0x00E2-0x00E54Writefromance_scroll_w
0x00E61Read/Writefromance_commanddata_r, fromance_busycheck_sub_w
0x00E71Writefromance_adpcm_reset_w
0x00E81Writefromance_adpcm_w
0x00E9-0x00EA2Device Writeaysnd, ay8910_device, data_address_w
Memory Area:nekkyoku_sub_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xBFFF16384ROM Bankbank1
0xC000-0xEFFF12288Read/Writefromance_videoram_r, fromance_videoram_w
0xF000-0xF7FF2048RAM
0xF800-0xFFFF2048Read/Writefromance_paletteram_r, fromance_paletteram_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:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288ic11a.binCRC(2bc2b1d0) (Fluke: 738F)
0x80000-0xBFFFF262144ic12a.binCRC(cac93dc0) (Fluke: 8EA8)
0xC0000-0xC7FFF327686-ic13a.binCRC(84830e34) (Fluke: F2C7)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288ic8a.binCRC(599790d8) (Fluke: 8987)
0x80000-0xBFFFF262144ic9a.binCRC(78c1906f) (Fluke: 6C8D)
0xC0000-0xC7FFF327685-ic10a.binCRC(2e78515f) (Fluke: C933)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF327681-ic1a.binCRC(bb52d959) (Fluke: 3289)
0x8000-0xFFFF327682-ic2a.binCRC(61848d8b) (Fluke: 1330)
Memory Area:sub
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF327683-ic3a.binCRC(a13da011) (Fluke: 8DDA)
0x10000-0x8FFFF524288ic4a.binCRC(1cc4d31b) (Fluke: 4ACA)
0x90000-0x10FFFF524288ic5a.binCRC(8b0945a1) (Fluke: B916)
0x110000-0x18FFFF524288ic6a.binCRC(d5615e1d) (Fluke: 76BD)
0x190000-0x197FFF327684-ic7a.binCRC(e259cfbb) (Fluke: 1190)
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