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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.
World Rally (Gaelco, 1993)
Memory Area:dallas_ram
Address RangeLengthFunctionDescription
0x0000-0xFFFF65536Read/Write, Maskdallas_share_r, dallas_share_w, 0x3fff (/* Shared RAM with the main CPU */)
Memory Area:dallas_rom
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM(/* Code in NVRAM */)
Memory Area:wrally_map
Address RangeLengthFunctionDescription
0x0000-0xFFFFF1048576ROM(/* ROM */)
0x100000-0x103FFF16384RAM Write, Sharedvram_w, videoram (/* encrypted Video RAM */)
0x108000-0x1080078RAM, Sharedvregs (/* Video Registers */)
0x10800C-0x10800D2Write NOP(/* CLR INT Video */)
0x200000-0x203FFF16384RAM Device Write, Sharedpalette, palette_device, write, palette (/* Palette */)
0x440000-0x440FFF4096RAM, Sharedspriteram (/* Sprite RAM */)
0x700000-0x7000012Read PortDSW
0x0003DifficultyActive High
0x0003NormalActive High
0x0002EasyActive High
0x0001HardActive High
0x0000HardestActive High
0x00042Active High
0x00001Active High
0x0018JoystickActive High
0x0010Pot WheelActive High
0x0000Optical WheelActive High
0x0020Demo_SoundsActive High
0x0020OffActive High
0x0000OnActive High
0x0040CabinetActive High
0x0040UprightActive High
0x0000CocktailActive High
0x0700Coin_AActive High
0x07001C_1CActive High
0x00003C_4CActive High
0x01002C_3CActive High
0x06001C_2CActive High
0x05001C_3CActive High
0x04001C_4CActive High
0x03001C_5CActive High
0x02001C_6CActive High
0x3800Coin_BActive High
0x10006C_1CActive High
0x18005C_1CActive High
0x20004C_1CActive High
0x28003C_1CActive High
0x30002C_1CActive High
0x08003C_2CActive High
0x00004C_3CActive High
0x38001C_1CActive High
0x4000Start 1C/Continue 1CActive High
0x0000Start 2C/Continue 1CActive High
0x8000Free_PlayActive High
0x8000OffActive High
0x0000OnActive High
0x700002-0x7000032Read PortP1_P2
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick RightActive Low
0x0008Joystick LeftActive Low
0x0010Gear ShiftActive High
0x0020Button 1Active Low
0x0040Coin 1Active Low
0x0080Coin 2Active Low
0x0100Joystick UpActive Low
0x0200Joystick DownActive Low
0x0400Joystick RightActive Low
0x0800Joystick LeftActive Low
0x1000Button 2Active Low
0x2000Button 1Active Low
0x4000Start 1Active Low
0x8000Start 2Active Low
0x700004-0x7000052Read PortWHEEL
0xff00DialActive High
0x00ffUnknownActive Low
0x700008-0x7000092Read PortSYSTEM
0x0001Service 1Active Low
0x0002Service 2Active Low
0xfffcUnknownActive Low
0x70000A-0x70001B18Writecoin_lockout_w (/* Coin lockouts */)
0x70000C-0x70000D2Writeokim6295_bankswitch_w (/* OKI6295 bankswitch */)
0x70000E-0x70000F2Device Read/Write 8-bitoki, okim6295_device, read, write, 0x00ff (/* OKI6295 status/data register */)
0x70002A-0x70003B18Writecoin_counter_w (/* Coin counters */)
0x70004A-0x70004B2Write NOP(/* Sound muting */)
0x70005A-0x70005B2Writeflipscreen_w (/* Flip screen */)
0x70006A-0x70007B18Write NOP(/* ??? */)
0xFEC000-0xFEFFFF16384RAM, Sharedshareram (/* Work RAM (shared with DS5002FP) */)
 

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:mcu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768wrdallas.binCRC(547d1768) (Fluke: 0BD8)
0x0000-0x7FFF32768wrdallas.binCRC(547d1768) (Fluke: 0BD8)
0x0000-0x7FFF32768wrdallas.binCRC(547d1768) (Fluke: 0BD8)
Memory Area:oki
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288worldr14.c01CRC(e931c2ee) (Fluke: 335A)
0x0000-0x7FFFF524288worldr14.c01CRC(e931c2ee) (Fluke: 335A)
0x80000-0xFFFFF524288worldr15.c03CRC(11f0fe2c) (Fluke: 1B78)
0x80000-0xFFFFF524288worldr15.c03CRC(11f0fe2c) (Fluke: 1B78)
Memory Area:plds
Address RangeLengthLabel/LocationDescription
0x0000-0x0103260pal16r8-b15.binCRC(b50337a6) (Fluke: 8708)
0x0000-0x0103260tibpal20l8-25cnt.b23
0x0000-0x0103260gal16v8-25lnc.h21
0x0000-0x0103260pal16r8-b15.binCRC(b50337a6) (Fluke: 8708)
0x0000-0x0103260tibpal20l8-25cnt.h15
0x0000-0x0103260pal16r4-e2.binCRC(15fee75c) (Fluke: 1484)
0x0000-0x0103260tibpal20l8-25cnt.h15
0x0000-0x0103260tibpal20l8-25cnt.h15
0x0000-0x0103260gal16v8-25lnc.h21
0x0000-0x0103260gal16v8-25lnc.h21
0x0000-0x0103260pal16r8-b15.binCRC(b50337a6) (Fluke: 8708)
0x0000-0x0103260tibpal20l8-25cnt.b23
0x0000-0x0103260pal16r4-e2.binCRC(15fee75c) (Fluke: 1484)
0x0000-0x0103260pal16r4-e2.binCRC(15fee75c) (Fluke: 1484)
0x0000-0x0103260tibpal20l8-25cnt.b23
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