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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 Gakuensai 2 (MakeSoft, 1998)
Memory Area:gakusai2_map
Address RangeLengthFunctionDescription
0x0000-0x7FFFF524288ROM(// ROM)
0x600000-0x61FFFF131072RAM Write, Sharedmetro_vram_0_w, vram_0 (// Layer 0)
0x620000-0x63FFFF131072RAM Write, Sharedmetro_vram_1_w, vram_1 (// Layer 1)
0x640000-0x65FFFF131072RAM Write, Sharedmetro_vram_2_w, vram_2 (// Layer 2)
0x660000-0x66FFFF65536Readmetro_bankedrom_r (// Banked ROM)
0x670000-0x671FFF8192RAM(// ???)
0x672000-0x673FFF8192RAM Device Write, Sharedpalette, palette_device, write, palette (// Palette)
0x674000-0x674FFF4096RAM, Sharedspriteram (// Sprites)
0x675000-0x675FFF4096RAM(// Sprites?)
0x678000-0x6787FF2048RAM, Sharedtiletable (// Tiles Set)
0x67880E-0x67880F2RAM, Sharedscreenctrl (// Screen Control)
0x678810-0x67881F16Write Only, Sharedirq_levels (// IRQ Levels)
0x678820-0x67882F16Write Only, Sharedirq_vectors (// IRQ Vectors)
0x678830-0x6788312Write Only, Sharedirq_enable (// IRQ Enable)
0x678832-0x6788332Read/Writemetro_irq_cause_r,metro_irq_cause_w (// IRQ Cause / IRQ Acknowledge)
0x678836-0x6788372Device Writewatchdog, watchdog_timer_device, reset16_w
0x678840-0x67884D14Write, Sharedmetro_blitter_w, blitter_regs (// Tiles Blitter)
0x678850-0x67885B12Write Only, Sharedscroll (// Scroll Regs)
0x678860-0x67886B12Write, Sharedmetro_window_w, window (// Tilemap Window)
0x678870-0x6788712Write Only, Sharedrombank (// Rom Bank)
0x678880-0x6788812Readgakusai_input_r (// Inputs)
0x678882-0x6788832Read PortIN0 (//)
0x678888-0x6788892Write Only, Sharedinput_sel (// Inputs)
0x679700-0x67971320Write Only, Sharedvideoregs (// Video Registers)
0x800000-0x8000012Write NOP(// ? 5)
0x900000-0x9000012Writegakusai_oki_bank_lo_w (// Sound bank)
0xA00000-0xA000012Writegakusai_oki_bank_hi_w (//)
0xB00000-0xB000012Device Read/Write 8-bitoki, okim6295_device, read, write, 0x00ff (// Sound)
0xC00000-0xC000034Device Write 8-bitymsnd, ym2413_device, write, 0x00ff
0xE00000-0xE000012Read/Writegakusai_eeprom_r,gakusai_eeprom_w (// EEPROM)
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
0x0000-0x3FFFFF4194304mg2-7.binCRC(2f1c041e) (Fluke: 725D)
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