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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.
Jibun wo Migaku Culture School Mahjong Hen (Face, 1994)
Memory Area:cultures_io_map
Address RangeLengthFunctionDescription
0x0000-0x00034RAM
0x0010-0x00134RAM
0x0020-0x00234RAM, Sharedbg0_regs_x
0x0030-0x00334RAM, Sharedbg0_regs_y
0x0040-0x00434RAM, Sharedbg1_regs_x
0x0050-0x00534RAM, Sharedbg1_regs_y
0x0060-0x00634RAM, Sharedbg2_regs_x
0x0070-0x00734RAM, Sharedbg2_regs_y
0x00801Writecpu_bankswitch_w
0x00901Writemisc_w
0x00A01Writebg_bank_w
0x00C01Device Read/Writeoki, okim6295_device, read, write
0x00D01Read PortSW1_A
0x0007CoinageActive High
0x000010 Coins / 1 CreditActive High
0x00015C_1CActive High
0x00024C_1CActive High
0x00033C_1CActive High
0x00042C_1CActive High
0x00071C_1CActive High
0x00061C_2CActive High
0x00051C_3CActive High
0x0008Flip_ScreenActive High
0x0000OffActive High
0x0008OnActive High
0x00f0UnusedActive Low
0x00D11Read PortSW1_B
0x0000NoActive High
0x0001YesActive High
0x0002PartialActive High
0x0000FullActive High
0x0000NoActive High
0x0004YesActive High
0x0008Not ClearedActive High
0x0000ClearedActive High
0x00f0UnusedActive Low
0x00D21Read PortSW2_A
0x0003DifficultyActive High
0x0000HardestActive High
0x0001HardActive High
0x0003NormalActive High
0x0002EasyActive High
0x0004Demo_SoundsActive High
0x0000OffActive High
0x0004OnActive High
0x0000NoActive High
0x0008YesActive High
0x00f0UnusedActive Low
0x00D31Read PortSW2_B
0x0001Allow_ContinueActive High
0x0000NoActive High
0x0001YesActive High
0x0000NoActive High
0x0002YesActive High
0x00f0UnusedActive Low
0x00E01Read PortKEY0
0x0001Mahjong AActive Low
0x0002Mahjong BActive Low
0x0004Mahjong CActive Low
0x0008Mahjong DActive Low
0x00f0UnusedActive Low
0x00E11Read PortKEY1
0x0001Mahjong EActive Low
0x0002Mahjong FActive Low
0x0004Mahjong GActive Low
0x0008Mahjong HActive Low
0x00f0UnusedActive Low
0x00E21Read PortKEY2
0x0001Mahjong IActive Low
0x0002Mahjong JActive Low
0x0004Mahjong KActive Low
0x0008Mahjong LActive Low
0x00f0UnusedActive Low
0x00E31Read PortKEY3
0x0001Mahjong MActive Low
0x0002Mahjong NActive Low
0x0004Mahjong ChiActive Low
0x0008Mahjong PonActive Low
0x00f0UnusedActive Low
0x00E41Read PortKEY4
0x0001Mahjong KanActive Low
0x0002Mahjong ReachActive Low
0x0004Mahjong RonActive Low
0x00f8UnusedActive Low
0x00E51Read PortSTART
0x0001Start 1Active Low
0x00feUnusedActive Low
0x00F01Read PortUNUSED1
0x00ffUnusedActive Low
0x00F11Read PortUNUSED2
0x00ffUnusedActive Low
0x00F21Read PortUNUSED3
0x00ffUnusedActive Low
0x00F31Read PortUNUSED4
0x00ffUnusedActive Low
0x00F71Read PortCOINS
0x001fUnusedActive Low
0x0020Service 1Active Low
0x0040Service 2Active Low
0x0080Coin 1Active Low
Memory Area:cultures_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0x4000-0x7FFF16384ROM Bankprgbank
0x8000-0xBFFF16384Devicevrambank, address_map_bank_device, amap8
0xC000-0xDFFF8192RAM
0xF000-0xFFFF4096RAM
Memory Area:vrambank_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384RAM Write, Sharedbg0_videoram_w, bg0_videoram
0x4000-0x6FFF12288RAM Device Write, Sharedpalette, palette_device, write, palette
 

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:bg0
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFFF2097152bg0c.u45CRC(ad2e1263) (Fluke: 1A4F)
0x0000-0x1FFFFF2097152bg2c.u68CRC(fa598644) (Fluke: B8F2)
0x0000-0x1FFFFF2097152bg1c.u80CRC(9ab99bd9) (Fluke: 0483)
0x200000-0x2FFFFF1048576bg2t.u79CRC(0610a79f) (Fluke: 7843)
0x200000-0x2FFFFF1048576bg0c2.u46CRC(97c71c09) (Fluke: 2781)
0x200000-0x2FFFFF1048576bg1t.u67CRC(d2e594ee) (Fluke: C270)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF262144ma01.u12CRC(f57417b3) (Fluke: EC3F)
Memory Area:oki
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFFF2097152pcm.u87CRC(84206475) (Fluke: E4D6)
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