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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 G-Taste (Psikyo, 2002)
Memory Area:ps3v1_map
Address RangeLengthFunctionDescription
0x0000-0xFFFFF1048576ROM(// program ROM (1 meg))
0x2000000-0x20FFFFF1048576ROM, Regionmaincpu, 0x100000 (// data ROM)
0x3000000-0x3003FFF16384RAM, Sharedspriteram (// video banks0-7 (sprites and sprite list))
0x3004000-0x300FFFF49152RAM, Sharedbgram (// video banks 7-0x1f (backgrounds and other effects))
0x3040000-0x3044FFF20480RAM Device Write, Sharedpalette, palette_device, write, palette (// palette..)
0x3050000-0x30501FF512RAM, Sharedzoomram (// sprite zoom lookup table)
0x305FFDC-0x305FFDF4Device Read, Writewatchdog, watchdog_timer_device, reset32_r, psikyosh_irqctrl_w (// also writes to this address - might be vblank reads?)
0x305FFE0-0x305FFFF32RAM Write, Sharedpsikyosh_vidregs_w, vidregs (// video registers)
0x3060000-0x307FFFF131072ROM Bankgfxbank (// data for rom tests (gfx), data is controlled by vidreg)
0x4060000-0x407FFFF131072ROM Bankgfxbank (// data for rom tests (gfx) (Mirrored?))
0x5000000-0x50000078Device Read/Write 8-bitymf, ymf278b_device, read, write, 0xffffffff
0x5800000-0x58000034Read PortINPUTS
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0004UnusedActive Low
0x0008UnusedActive Low
0x0010Service 1Active Low
0x0040OffActive High
0x0000OnActive High
0xffff80UnusedActive Low
0x1000000Start 1Active Low
0x2000000UnusedActive Low
0x4000000UnusedActive Low
0x8000000Button 1Active Low
0x10000000Joystick LeftActive Low
0x20000000Joystick RightActive Low
0x40000000Joystick DownActive Low
0x80000000Joystick UpActive Low
0x5800004-0x58000074Read/Writepsh_eeprom_r, psh_eeprom_w
0x6000000-0x60FFFFF1048576RAM, Sharedram (// main RAM (1 meg))
Memory Area:ps5_map
Address RangeLengthFunctionDescription
0x0000-0xFFFFF1048576ROM(// program ROM (1 meg))
0x3000000-0x30000034Read PortINPUTS
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0004UnusedActive Low
0x0008UnusedActive Low
0x0010Service 1Active Low
0x0040OffActive High
0x0000OnActive High
0xffff80UnusedActive Low
0x1000000Start 1Active Low
0x2000000UnusedActive Low
0x4000000UnusedActive Low
0x8000000Button 1Active Low
0x10000000Joystick LeftActive Low
0x20000000Joystick RightActive Low
0x40000000Joystick DownActive Low
0x80000000Joystick UpActive Low
0x3000004-0x30000074Read/Writepsh_eeprom_r, psh_eeprom_w
0x3100000-0x31000078Device Read/Write 8-bitymf, ymf278b_device, read, write, 0xffffffff
0x4000000-0x4003FFF16384RAM, Sharedspriteram (// video banks0-7 (sprites and sprite list))
0x4004000-0x400FFFF49152RAM, Sharedbgram (// video banks 7-0x1f (backgrounds and other effects))
0x4040000-0x4044FFF20480RAM Device Write, Sharedpalette, palette_device, write, palette
0x4050000-0x40501FF512RAM, Sharedzoomram (// sprite zoom lookup table)
0x405FFDC-0x405FFDF4Read NOP, Writepsikyosh_irqctrl_w (// also writes to this address - might be vblank reads?)
0x405FFE0-0x405FFFF32RAM Write, Sharedpsikyosh_vidregs_w, vidregs (// video registers)
0x4060000-0x407FFFF131072ROM Bankgfxbank (// data for rom tests (gfx), data is controlled by vidreg)
0x5000000-0x507FFFF524288ROM, Regionmaincpu, 0x100000 (// data ROM)
0x6000000-0x60FFFFF1048576RAM, Sharedram
 

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:ymf
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFFF4194304snd0.u52CRC(0179f018) (Fluke: 5B6F)
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