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.
Chance Thirty Two (PAL System Co, Ltd., 0)
Memory Area:chance32_map
Address RangeLengthFunctionDescription
0x0000-0xCFFF53248ROM
0xD800-0xDFFF2048RAM
0xE000-0xEFFF4096RAM Device Write, Sharedpalette, palette_device, write, palette
0xF000-0xF7FF2048RAM Write, Sharedchance32_fgram_w, fgram
0xF800-0xFFFF2048RAM Write, Sharedchance32_bgram_w, bgram
Memory Area:chance32_portmap
Address RangeLengthFunctionDescription
0x00101Write NOP(// writing bit3 constantly... watchdog?)
0x00131Writemux_w
0x00201Read PortDSW0
0x0000OffActive High
0x0001OnActive High
0x0000OffActive High
0x0002OnActive High
0x0000OffActive High
0x0004OnActive High
0x0000OffActive High
0x0008OnActive High
0x0000OffActive High
0x0010OnActive High
0x0000OffActive High
0x0020OnActive High
0x000010Active High
0x004020Active High
0x008030Active High
0x00c050Active High
0x00211Read PortDSW1
0x0000OffActive High
0x0001OnActive High
0x0000OffActive High
0x0002OnActive High
0x0000OffActive High
0x0004OnActive High
0x0000OffActive High
0x0008OnActive High
0x0000OffActive High
0x0010OnActive High
0x0000OffActive High
0x0020OnActive High
0x0040OffActive High
0x0000OnActive High
0x0000HoldsActive High
0x0080Big/SmallActive High
0x00221Read PortDSW2
0x00005Active High
0x000110Active High
0x000220Active High
0x000325Active High
0x000440Active High
0x000550Active High
0x000660Active High
0x0007100Active High
0x0000x1Active High
0x0008x2Active High
0x0010x4Active High
0x0018x5Active High
0x0020x6Active High
0x0028x10Active High
0x0030x25Active High
0x0038x50Active High
0x0000OffActive High
0x0040OnActive High
0x0000OffActive High
0x0080OnActive High
0x00231Read PortDSW3
0x0000OffActive High
0x0001OnActive High
0x0000OffActive High
0x0002OnActive High
0x0000OffActive High
0x0004OnActive High
0x0000OffActive High
0x0008OnActive High
0x0000OffActive High
0x0010OnActive High
0x0000OffActive High
0x0020OnActive High
0x0000OffActive High
0x0040OnActive High
0x0000OffActive High
0x0080OnActive High
0x00241Read PortDSW4
0x0000OffActive High
0x0001OnActive High
0x00005000Active High
0x000210000Active High
0x000420000Active High
0x000630000Active High
0x0000OffActive High
0x0008OnActive High
0x0000OffActive High
0x0010OnActive High
0x0000OffActive High
0x0020OnActive High
0x0000OffActive High
0x0040OnActive High
0x0000OffActive High
0x0080OnActive High
0x00251Readmux_r
0x00261Read PortUNK (// vblank (other bits are checked for different reasons))
0x0001CustomActive High
0x0000OffActive High
0x0002OnActive High
0x0000OffActive High
0x0004OnActive High
0x0000OffActive High
0x0008OnActive High
0x0000OffActive High
0x0010OnActive High
0x0000OffActive High
0x0020OnActive High
0x0000OffActive High
0x0040OnActive High
0x0000OffActive High
0x0080OnActive High
0x00301Device Writecrtc, mc6845_device, address_w
0x00311Device Writecrtc, mc6845_device, register_w
0x00501Device Read/Writeoki, okim6295_device, read, write
0x00601Writemuxout_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:gals
Address RangeLengthLabel/LocationDescription
0x0000-0x0116279gal16v8a.u24.jed.binCRC(a733f0de)
0x0000-0x0156343gal20v8a.u57.jed.binCRC(787c4159)
0x0000-0x0156343gal20v8a.u56.jed.binCRC(6bab01ad)
0x0000-0x0156343gal20v8a.u53.jed.binCRC(9f680800)
0x0000-0x0116279gal16v8a.u32.jed.binCRC(c0784cd1)
0x0000-0x0116279gal16v8a.u47.jed.binCRC(a733f0de)
0x0000-0x0156343gal20v8a.u58.jed.binCRC(7b16053b)
0x0000-0x0156343gal20v8a.u54.jed.binCRC(9f680800)
0x0000-0x0116279gal16v8a.u48.jed.binCRC(5f1360ef)
0x0000-0x0156343gal20v8a.u55.jed.binCRC(9f680800)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF655360.u52CRC(331048b2)
Memory Area:oki
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF2621448.u21CRC(161b35dd)
© Copyright 2009-2025, ClassicSoft, LLC. All rights reserved
Powered by the ClassicSoft Web Content Framework V3