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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.
Multi Game (EGD, 1997)
Memory Area:gambl186_io
Address RangeLengthFunctionDescription
0x03B0-0x03BF16Device Read/Write 8-bitvga, cirrus_gd5428_device, port_03b0_r, port_03b0_w, 0xffff
0x03C0-0x03CF16Device Read/Write 8-bitvga, cirrus_gd5428_device, port_03c0_r, port_03c0_w, 0xffff
0x03D0-0x03DF16Device Read/Write 8-bitvga, cirrus_gd5428_device, port_03d0_r, port_03d0_w, 0xffff
0x0400-0x04012Writeupd_w (// upd7759 sample index/input)
0x0500-0x05012Read PortIN0
0x00ffUnknownActive Low
0x0100Poker Hold 1Active Low
0x0200Poker Hold 2Active Low
0x0400Poker Hold 3Active Low
0x0800Poker Hold 4Active Low
0x1000Poker Hold 5Active Low
0x2000Start 1Active Low
0x4000UnknownActive Low
0x8000-Active Low
0x0502-0x05032Read PortIN1
0x00ffUnknownActive Low
0x0100Coin 5Active Low
0x0200Coin 3Active Low
0x0400Coin 2Active Low
0x0800Coin 6Active Low
0x1000Coin 4Active Low
0x2000Coin 1Active Low
0x4000PayoutActive Low
0x8000Service KeyActive Low
0x0504-0x05052Read PortIN2 (// Seems to writes more upd7759 params in MSB...)
0x00ffUnknownActive Low
0x0100UnknownActive Low
0x0200- AuxActive Low
0xfc00UnknownActive Low
0x0580-0x05812Read PortDSW1
0x00ffUnknownActive Low
0x0100OffActive High
0x0000OnActive High
0x0200OffActive High
0x0000OnActive High
0x0400OffActive High
0x0000OnActive High
0x0800640x480Active High
0x0000640x240Active High
0x1000OffActive High
0x0000OnActive High
0x2000OffActive High
0x0000OnActive High
0x4000OffActive High
0x0000OnActive High
0x8000OffActive High
0x0000OnActive High
0x0582-0x05832Read PortJOY
0x01ffUnknownActive Low
0x0200Joystick UpActive Low
0x0400Joystick LeftActive Low
0x0800Joystick RightActive Low
0x1000Joystick DownActive Low
0xe000UnknownActive Low
0x0584-0x05852Read Port, Write NOPDSW0, (// Watchdog: bit 8)
0x0fffUnknownActive Low
0x2000OffActive High
0x0000OnActive High
0x4000OffActive High
0x0000OnActive High
0x8000OffActive High
0x0000OnActive High
0x0680-0x06834Read/Writecomms_r, comms_w
0x0700-0x07012Writedata_bank_w
Memory Area:gambl186_map
Address RangeLengthFunctionDescription
0x0000-0xFFFF65536RAM, Sharednvram
0x40000-0x7FFFF262144ROM Bankdata_bank
0xA0000-0xBFFFF131072Device Read/Write 8-bitvga, cirrus_gd5428_device, mem_r, mem_w, 0xffff
0xC0000-0xFFFFF262144ROM, Regionipl,0
 

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:upd
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072347.u302CRC(7ce8f490)
0x0000-0x1FFFF131072347.u302CRC(7ce8f490)
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