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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.
Daioh (Athena, 1993)
Memory Area:daioh_map
Address RangeLengthFunctionDescription
0x0000-0xFFFFF1048576ROM(// ROM)
0x100000-0x10FFFF65536RAM(// RAM)
0x400000-0x4000012Read PortP1 (// P1)
0x400002-0x4000032Read PortP2 (// P2)
0x400004-0x4000052Read PortCOINS (// Coins)
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0004Service 1Active Low
0x0008UnknownActive Low
0x0010OffActive High
0x0000OnActive High
0x0020OffActive High
0x0000OnActive High
0x0040OffActive High
0x0000OnActive High
0x0080USA (6 buttons)Active High
0x0000Japan (2 buttons)Active High
0x500000-0x5000056RAM Write, Sharedseta_vregs_w, vregs (// Coin Lockout + Video Registers)
0x500006-0x5000072Read PortEXTRA (// Buttons 4,5,6)
0x0001Button 4Active Low
0x0002Button 5Active Low
0x0004Button 6Active Low
0x0008Button 4Active Low
0x0010Button 5Active Low
0x0020Button 6Active Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0x600000-0x6000034Readseta_dsw_r (// DSW)
0x700000-0x7003FF1024RAM
0x700400-0x700FFF3072RAM, Sharedpaletteram (// Palette)
0x701000-0x70FFFF61440RAM(//)
0x800000-0x803FFF16384RAM Write, Sharedseta_vram_0_w, vram_0 (// VRAM 0&1)
0x804000-0x80FFFF49152RAM(//)
0x880000-0x883FFF16384RAM Write, Sharedseta_vram_2_w, vram_2 (// VRAM 2&3)
0x884000-0x88FFFF49152RAM(//)
0x900000-0x9000056RAM, Sharedvctrl_0 (// VRAM 0&1 Ctrl)
0x980000-0x9800056RAM, Sharedvctrl_2 (// VRAM 2&3 Ctrl)
0xA00000-0xA005FF1536RAM, Device Read/Writespritegen, seta001_device, spriteylow_r16, spriteylow_w16 (// Sprites Y)
0xA00600-0xA006078RAM, Device Read/Writespritegen, seta001_device, spritectrl_r16, spritectrl_w16
0xA80000-0xA800012RAM(// ? 0x4000)
0xB00000-0xB03FFF16384RAM, Device Read/Writespritegen, seta001_device, spritecode_r16, spritecode_w16 (// Sprites Code + X + Attr)
0xB04000-0xB13FFF65536RAM
0xC00000-0xC03FFF16384Device Read/Writex1snd, x1_010_device, word_r, word_w (// Sound)
0xE00000-0xE000012Write NOP(//)
 

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:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFFF1048576fg-001-004CRC(9ab0533e) (Fluke: DE84)
0x0000-0xFFFFF1048576fg-001-004CRC(9ab0533e) (Fluke: DE84)
0x100000-0x1FFFFF1048576fg-001-003CRC(1c9d51e2) (Fluke: E4F9)
0x100000-0x1FFFFF1048576fg-001-003CRC(1c9d51e2) (Fluke: E4F9)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFFF2097152fg-001-005CRC(c25159b9) (Fluke: F21A)
0x0000-0x1FFFFF2097152fg-001-005CRC(c25159b9) (Fluke: F21A)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFFF2097152fg-001-006CRC(2052c39a) (Fluke: E65F)
0x0000-0x1FFFFF2097152fg-001-006CRC(2052c39a) (Fluke: E65F)
Memory Area:x1snd
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFFF1048576fg-001-007CRC(4a2fe9e0) (Fluke: 62A1)
0x0000-0xFFFFF1048576fg-001-007CRC(4a2fe9e0) (Fluke: 62A1)
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