Search

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 Yuugi (Visco, 1990)
Memory Area:mjyuugi_map
Address RangeLengthFunctionDescription
0x0000-0x7FFFF524288ROM
0x100000-0x1000012Read PortSYSTEM (/* Coinage */)
0x0001UnknownActive Low
0x0002UnknownActive Low
0x0004UnknownActive Low
0x0008UnknownActive Low
0x0010Coin 1Active Low
0x0020Service 1Active Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0xff00UnknownActive Low
0x100000-0x1000012Writemjyuugi_flags_w (/* Coin Counter */)
0x100010-0x1000112Read NOP(/* ??? */)
0x100010-0x1000112Writemjyuugi_adpcm_bank_w (/* ADPCM bank, GFX bank */)
0x200000-0x2000012Read 8-bitmjyuugi_irq2_ack_r,0x00ff (/* irq ack lv 2? */)
0x300000-0x3000012Read 8-bitmjyuugi_irq4_ack_r,0x00ff (/* irq ack lv 4? */)
0x500000-0x5000012Read PortDSW3-1 (/* DSW 3-1 */)
0x0001OffActive High
0x0000OnActive High
0x0002OffActive High
0x0000OnActive High
0x0004OffActive High
0x0000OnActive High
0x0008OffActive High
0x0000OnActive High
0xfff0UnknownActive Low
0x500010-0x5000112Read PortDSW3-2 (/* DSW 3-2 */)
0x0001OffActive High
0x0000OnActive High
0x0002OffActive High
0x0000OnActive High
0x0004OffActive High
0x0000OnActive High
0x0008OffActive High
0x0000OnActive High
0xfff0UnknownActive Low
0x700000-0x7003FF1024RAM Device Write, Sharedpalette, palette_device, write, palette
0x800000-0x8000012Read NOP(/* ??? */)
0x900000-0x9000012Read/Write 8-bitiox_mux_r, iox_command_w,0x00ff (/* key matrix | I/O */)
0x900002-0x9000032Read/Write 8-bitiox_status_r,iox_data_w,0x00ff
0xA00000-0xA000012Writesrmp2_adpcm_code_w (/* ADPCM number */)
0xB00000-0xB000034Device Write 8-bitaysnd, ay8910_device, address_data_w, 0x00ff
0xB00000-0xB000012Device Read 8-bitaysnd, ay8910_device, data_r, 0x00ff
0xB00002-0xB000032Read 8-bitvox_status_r,0x00ff (/* ADPCM voice status */)
0xC00000-0xC000012Write NOP(/* ??? */)
0xD00000-0xD005FF1536RAM, Device Read/Writespritegen, seta001_device, spriteylow_r16, spriteylow_w16 (/* Sprites Y */)
0x0001OffActive High
0x0000OnActive High
0x0000UprightActive High
0x0002CocktailActive High
0x0004OffActive High
0x0000OnActive High
0x0008OffActive High
0x0000OnActive High
0x00002C_1CActive High
0x00301C_1CActive High
0x00101C_2CActive High
0x00201C_3CActive High
0x0080OffActive High
0x0000OnActive High
0xD00600-0xD006078RAM, Device Read/Writespritegen, seta001_device, spritectrl_r16, spritectrl_w16
0x0001OffActive High
0x0000OnActive High
0x0000UprightActive High
0x0002CocktailActive High
0x0004OffActive High
0x0000OnActive High
0x0008OffActive High
0x0000OnActive High
0x00002C_1CActive High
0x00301C_1CActive High
0x00101C_2CActive High
0x00201C_3CActive High
0x0080OffActive High
0x0000OnActive High
0xD02000-0xD023FF1024RAM(/* ??? only writes $00fa */)
0xE00000-0xE03FFF16384RAM, Device Read/Writespritegen, seta001_device, spritecode_r16, spritecode_w16 (/* Sprites Code + X + Attr */)
0x0001OffActive High
0x0000OnActive High
0x0000UprightActive High
0x0002CocktailActive High
0x0004OffActive High
0x0000OnActive High
0x0008OffActive High
0x0000OnActive High
0x00002C_1CActive High
0x00301C_1CActive High
0x00101C_2CActive High
0x00201C_3CActive High
0x0080OffActive High
0x0000OnActive High
0xFFC000-0xFFFFFF16384RAM, Sharednvram
 

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:adpcm
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288maj-001.01CRC(029a0b60) (Fluke: 4E55)
0x0000-0x7FFFF524288maj-001.01CRC(029a0b60) (Fluke: 4E55)
0x80000-0xFFFFF524288maj-001.02CRC(eb28e641) (Fluke: 025B)
0x80000-0xFFFFF524288maj-001.02CRC(eb28e641) (Fluke: 025B)
© Copyright 2009-2025, ClassicSoft, LLC. All rights reserved
Powered by the ClassicSoft Web Content Framework V3