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.
Joker's Wild (Sega, 1991)
Memory Area:segajw_audiocpu_io_map
Address RangeLengthFunctionDescription
0x0080-0x00834Device Read/Writeymsnd, ym3438_device, read, write
0x00C01Device Read, Device Writesoundlatch, generic_latch_8_device, read, soundlatch2, generic_latch_8_device, write
Memory Area:segajw_audiocpu_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0xE000-0xFFFF8192RAM
Memory Area:segajw_map
Address RangeLengthFunctionDescription
0x0000-0x3FFFF262144ROM
0x80000-0x800012Device Read/Writehd63484, hd63484_device, status_r, address_w
0x80002-0x800032Device Read/Writehd63484, hd63484_device, data_r, data_w
0x180000-0x1800012Read PortDSW0
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
0x180004-0x1800052Device Read 8-bit, Write 8-bitsoundlatch2, generic_latch_8_device, read, 0x00ff, audiocpu_cmd_w, 0x00ff
0x180008-0x1800092Read PortDSW1
0x0001NormalActive High
0x0000ProgressiveActive High
0x0002With D.DActive High
0x0000Without D.DActive High
0x0004DisplayActive High
0x0000No DisplayActive High
0x0008ChangeActive High
0x0000No ChangeActive High
0x0010No DisplayActive High
0x0000DisplayActive High
0x0000CoinActive High
0x0020Coin/CreditActive High
0x0040Coin/CreditActive High
0x0060CreditActive High
0x0080DisplayActive High
0x0000No DisplayActive High
0x18000A-0x18000B2Read PortDSW3
0x0001NevadaActive High
0x0000New JerseyActive High
0x0002ChangeableActive High
0x0000OriginalActive High
0x0004ChangeableActive High
0x0000OriginalActive High
0x18000C-0x18000D2Read PortDSW2
0x0000$25Active High
0x0001$5Active High
0x0002$1Active High
0x000350cActive High
0x000425cActive High
0x000510cActive High
0x00065cActive High
0x0007MedalActive High
0x0008500Active High
0x00001000Active High
0x00105000Active High
0x00001000Active High
0x0020At. PayActive High
0x0000Credit/At. PayActive High
0x000010Active High
0x00c05Active High
0x00403Active High
0x00801Active High
0x1A0000-0x1A00012Writecoin_counter_w
0x1A0002-0x1A00054Read/Write 8-bitlamps_r, lamps_w, 0x00ff
0x1A0006-0x1A00072Read/Writehopper_r, hopper_w
0x1A000A-0x1A000B2Readcoin_counter_r
0x1A000E-0x1A000F2Read/Write NOP
0x1C0000-0x1C00012Read PortIN0
0x0001Poker Hold 1Active Low
0x0002Poker Hold 2Active Low
0x0004Poker Hold 3Active Low
0x0008Poker Hold 4Active Low
0x0010Poker Hold 5Active Low
0x00201 BetActive Low
0x0040Max BetActive Low
0x0080Deal / DrawActive Low
0x1C0002-0x1C00032Read PortIN1
0x0002DoubleActive Low
0x0010Gamble PayoutActive Low
0x0020ChangeActive Low
0x0040ServiceActive Low
0x0080ResetActive Low
0x000dUnusedActive High
0x1C0004-0x1C00052Read PortIN2
0x0001MeterActive Low
0x0002Last GameActive Low
0x0004M-DoorActive Low
0x0008D-DoorActive Low
0x0010SpecialActive High
0x0020Hopper FullActive Low
0x0040Hopper FillActive Low
0x0080UnusedActive High
0x1C0006-0x1C00072Read PortIN3
0x0007SpecialActive High
0x00f8UnusedActive High
0x1C000C-0x1C000D2Read/Writecoinlockout_r, coinlockout_w
0x280000-0x2800012Device Write 8-bitramdac, ramdac_device, index_w, 0x00ff
0x280002-0x2800032Device Write 8-bitramdac, ramdac_device, pal_w, 0x00ff
0x280004-0x2800052Device Write 8-bitramdac, ramdac_device, mask_w, 0x00ff
0xFF0000-0xFFFFFF65536RAM, 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:audiocpu
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF13107214587a.eprCRC(66163b6c)
© Copyright 2009-2025, ClassicSoft, LLC. All rights reserved
Powered by the ClassicSoft Web Content Framework V3