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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.
Mahjong Doukyuusei (Make Software / Elf / Media Trading, 1995)
Memory Area:dokyusei_map
Address RangeLengthFunctionDescription
0x0000-0x3FFFF262144ROM(// ROM)
0x400000-0x41FFFF131072RAM Write, Sharedmetro_vram_0_w, vram_0 (// Layer 0)
0x420000-0x43FFFF131072RAM Write, Sharedmetro_vram_1_w, vram_1 (// Layer 1)
0x440000-0x45FFFF131072RAM Write, Sharedmetro_vram_2_w, vram_2 (// Layer 2)
0x460000-0x46FFFF65536Readmetro_bankedrom_r (// Banked ROM)
0x460000-0x46FFFF65536Write NOP(// DSW Selection)
0x470000-0x471FFF8192RAM(// ???)
0x472000-0x473FFF8192RAM Device Write, Sharedpalette, palette_device, write, palette (// Palette)
0x474000-0x474FFF4096RAM, Sharedspriteram (// Sprites)
0x478000-0x4787FF2048RAM, Sharedtiletable (// Tiles Set)
0x47880E-0x47880F2Write Only, Sharedscreenctrl (// Screen Control)
0x478810-0x47881F16Write Only, Sharedirq_levels (// IRQ Levels)
0x478820-0x47882F16Write Only, Sharedirq_vectors (// IRQ Vectors)
0x478830-0x4788312Write Only, Sharedirq_enable (// IRQ Enable)
0x478832-0x4788332Writemetro_irq_cause_w (// IRQ Acknowledge)
0x478836-0x4788372Write NOP(// ? watchdog ?)
0x478840-0x47884D14Write, Sharedmetro_blitter_w, blitter_regs (// Tiles Blitter)
0x478850-0x47885B12Write Only, Sharedscroll (// Scroll Regs)
0x478860-0x47886B12Write, Sharedmetro_window_w, window (// Tilemap Window)
0x478870-0x4788712Write Only, Sharedrombank (// Rom Bank)
0x478880-0x4788812Readgakusai_input_r (// Inputs)
0x478882-0x4788832Read PortIN0 (//)
0x478884-0x4788852Read PortDSW0 (// 2 x DSW)
0x0300DifficultyActive High
0x0300EasyActive High
0x0200NormalActive High
0x0100HardActive High
0x0000HardestActive High
0x1c00CoinageActive High
0x04004C_1CActive High
0x08003C_1CActive High
0x0c002C_1CActive High
0x1c001C_1CActive High
0x18001C_2CActive High
0x14001C_3CActive High
0x10001C_4CActive High
0x0000Free_PlayActive High
0x2000Demo_SoundsActive High
0x0000OffActive High
0x2000OnActive High
0x0000OffActive High
0x4000OnActive High
0x8000NoActive High
0x0000YesActive High
0x478886-0x4788872Read PortDSW1 (//)
0x0100Flip_ScreenActive High
0x0100OffActive High
0x0000OnActive High
0x0000NoActive High
0x0200YesActive High
0x0400Return to defaultActive High
0x0000Keep current statusActive High
0x0000NoActive High
0x1000YesActive High
0x2000OffActive High
0x0000OnActive High
0x4000OffActive High
0x0000OnActive High
0x8000OffActive High
0x0000OnActive High
0x478888-0x4788892Write Only, Sharedinput_sel (// Inputs)
0x479700-0x47971320Write Only, Sharedvideoregs (// Video Registers)
0x800000-0x8000012Writegakusai_oki_bank_hi_w (// Samples Bank?)
0x900000-0x9000012Write NOP(// ? 4)
0xA00000-0xA000012Writegakusai_oki_bank_lo_w (// Samples Bank)
0xC00000-0xC000034Device Write 8-bitymsnd, ym2413_device, write, 0x00ff (//)
0xD00000-0xD000012Device Read/Write 8-bitoki, okim6295_device, read, write, 0x00ff (// Sound)
0xF00000-0xF0FFFF65536RAM, Mirror0x0f0000 (// RAM (mirrored))
 

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:oki
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFFF10485767.binCRC(c572aee1) (Fluke: 76CF)
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