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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.
Taisen Idol-Mahjong Final Romance 2 (Video System Co., 1995)
Memory Area:fromanc2_main_map
Address RangeLengthFunctionDescription
0x0000-0x7FFFF524288ROM(// MAIN ROM)
0x800000-0x803FFF16384Writefromanc2_videoram_0_w (// VRAM 0, 1 (1P))
0x802000-0x802FFF4096Read NOP(// ???)
0x880000-0x883FFF16384Writefromanc2_videoram_1_w (// VRAM 2, 3 (1P))
0x900000-0x903FFF16384Writefromanc2_videoram_2_w (// VRAM 0, 1 (2P))
0x980000-0x983FFF16384Writefromanc2_videoram_3_w (// VRAM 2, 3 (2P))
0xA00000-0xA00FFF4096RAM Device Write, Sharedlpalette, palette_device, write, lpalette (// PALETTE (1P))
0xA80000-0xA80FFF4096RAM Device Write, Sharedrpalette, palette_device, write, rpalette (// PALETTE (2P))
0xD00000-0xD0002336Writefromanc2_gfxreg_0_w (// SCROLL REG (1P/2P))
0xD00100-0xD0012336Writefromanc2_gfxreg_2_w (// SCROLL REG (1P/2P))
0xD00200-0xD0022336Writefromanc2_gfxreg_1_w (// SCROLL REG (1P/2P))
0xD00300-0xD0032336Writefromanc2_gfxreg_3_w (// SCROLL REG (1P/2P))
0xD00400-0xD0041320Write NOP(// ???)
0xD00500-0xD0051320Write NOP(// ???)
0xD01000-0xD010012Writefromanc2_sndcmd_w (// SOUND REQ (1P/2P))
0xD01100-0xD011012Read PortSYSTEM
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0004Coin 3Active Low
0x0008Coin 4Active Low
0x0010SpecialActive High
0x0020SpecialActive High
0x0040SpecialActive High
0x0080SpecialActive High
0x0100Service Mode (1PActive Low
0x0200Service Mode (2PActive Low
0x0400UnusedActive Low
0x0800UnusedActive Low
0x1000UnusedActive Low
0x2000UnusedActive Low
0x4000UnusedActive Low
0x8000UnusedActive Low
0xD01200-0xD012012Writefromanc2_subcpu_w (// SUB CPU WRITE)
0xD01300-0xD013012Readfromanc2_subcpu_r (// SUB CPU READ)
0xD01400-0xD014012Writefromanc2_gfxbank_0_w (// GFXBANK (1P))
0xD01500-0xD015012Writefromanc2_gfxbank_1_w (// GFXBANK (2P))
0xD01600-0xD016012Write PortEEPROMOUT (// EEPROM DATA)
0xD01800-0xD018012Readfromanc2_keymatrix_r (// INPUT KEY MATRIX)
0xD01A00-0xD01A012Writefromanc2_portselect_w (// PORT SELECT (1P/2P))
0xD80000-0xD8FFFF65536RAM(// WORK RAM)
Memory Area:fromanc2_sound_io_map
Address RangeLengthFunctionDescription
0x00001Device Read, Write NOPsoundlatch, generic_latch_8_device, read, (// snd cmd (1P) / ?)
0x00041Device Readsoundlatch2, generic_latch_8_device, read (// snd cmd (2P))
0x0008-0x000B4Device Read/Writeymsnd, ym2610_device, read, write
0x000C1Readfromanc2_sndcpu_nmi_clr
Memory Area:fromanc2_sound_map
Address RangeLengthFunctionDescription
0x0000-0xDFFF57344ROM
0xE000-0xFFFF8192RAM
Memory Area:fromanc2_sub_io_map
Address RangeLengthFunctionDescription
0x00001Writefromanc2_subcpu_rombank_w
0x00021Read/Writefromanc2_maincpu_r_l, fromanc2_maincpu_w_l (// to/from MAIN CPU)
0x00041Read/Writefromanc2_maincpu_r_h, fromanc2_maincpu_w_h (// to/from MAIN CPU)
0x00061Writefromanc2_subcpu_nmi_clr
Memory Area:fromanc2_sub_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM(// ROM)
0x4000-0x7FFF16384ROM Bankbank1 (// ROM(BANK))
0x8000-0xBFFF16384RAM(// RAM(WORK))
0xC000-0xFFFF16384RAM Bankbank2 (// RAM(BANK))
 

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:audiocpu
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF655365-ic85.binCRC(d8f19aa3) (Fluke: FEEA)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFFF2097152124-121.binCRC(0b62c9c5) (Fluke: B99A)
0x200000-0x3FFFFF2097152125-122.binCRC(1d6dc86e) (Fluke: 26F0)
0x400000-0x47FFFF524288126-123.binCRC(9c0f7abc) (Fluke: D600)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFFF209715235-47.binCRC(97ff0ad6) (Fluke: 4908)
0x200000-0x3FFFFF2097152161-164.binCRC(eedbc4d1) (Fluke: 7810)
0x400000-0x47FFFF524288162-165.binCRC(9b546e59) (Fluke: 965E)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFFF209715236-48.binCRC(c8ee7f40) (Fluke: A61C)
Memory Area:gfx4
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFFF104857640-52.binCRC(dbb5062d) (Fluke: 1260)
Memory Area:sub
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF655363-ic1.binCRC(6d02090e) (Fluke: 4A14)
Memory Area:ymsnd
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFFF2097152ic96.binCRC(2f1b394c) (Fluke: 2BCA)
0x200000-0x3FFFFF2097152ic97.binCRC(1d1377fc) (Fluke: A1FA)
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