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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.
Double Crown (Cadence Technology, 1997)
Memory Area:dblcrown_io
Address RangeLengthFunctionDescription
0x00001Read PortDSWA
0x0001OffActive High
0x0000OnActive High
0x0002OffActive High
0x0000OnActive High
0x0004OffActive High
0x0000OnActive High
0x0008OffActive High
0x0000OnActive High
0x0010OffActive High
0x0000OnActive High
0x0020HoldActive High
0x0000DiscardActive High
0x0040OffActive High
0x0000OnActive High
0x0080OffActive High
0x0000OnActive High
0x00011Read PortDSWB
0x0001OffActive High
0x0000OnActive High
0x0002OffActive High
0x0000OnActive High
0x0004OffActive High
0x0000OnActive High
0x0008OffActive High
0x0000OnActive High
0x0010OffActive High
0x0000OnActive High
0x0020OffActive High
0x0000OnActive High
0x0040OffActive High
0x0000OnActive High
0x0080OffActive High
0x0000OnActive High
0x00021Read PortDSWC
0x0001OffActive High
0x0000OnActive High
0x0002OffActive High
0x0000OnActive High
0x0004OffActive High
0x0000OnActive High
0x0008OffActive High
0x0000OnActive High
0x0010OffActive High
0x0000OnActive High
0x0020OffActive High
0x0000OnActive High
0x0040OffActive High
0x0000OnActive High
0x0080OffActive High
0x0000OnActive High
0x00031Read PortDSWD
0x0001OffActive High
0x0000OnActive High
0x0002OffActive High
0x0000OnActive High
0x0004OffActive High
0x0000OnActive High
0x0008OffActive High
0x0000OnActive High
0x0010OffActive High
0x0000OnActive High
0x0020OffActive High
0x0000OnActive High
0x0040OffActive High
0x0000OnActive High
0x0080OffActive High
0x0000OnActive High
0x00041Readin_mux_r
0x00051Readin_mux_type_r
0x00101Read/Writelamps_r, lamps_w
0x00111Read/Writebank_r, bank_w
0x00121Read/Writemux_r, mux_w
0x0020-0x00212Device Writeaysnd, ay8910_device, address_data_w
0x00301Writewatchdog_w
0x00401Writeoutput_w
Memory Area:dblcrown_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0x9FFF8192ROM Bankrom_bank
0xA000-0xB7FF6144RAM(// work ram)
0xB800-0xBFFF2048RAM, Sharednvram
0xC000-0xDFFF8192Read/Writevram_r, vram_w
0xF000-0xF1FF512Read/Writepalette_r, palette_w
0xFE00-0xFEFF256RAM(// ???)
0xFF00-0xFFFF256RAM(// ???, intentional fall-through)
0xFF00-0xFF012Read/Writevram_bank_r, vram_bank_w
0xFF041Read/Writeirq_source_r,irq_source_w
 

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
0x0000-0x7FFFF5242882.u43CRC(58200bd4)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF2621441.u33CRC(5df95a9c)
Memory Area:plds
Address RangeLengthLabel/LocationDescription
0x0000-0x0116279palce16v8h.u39CRC(c74231ee)
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