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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 (Atari license), 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
0x700002-0x7000032Read PortP1_P2
0x700004-0x7000052Read PortWHEEL
0x700008-0x7000092Read PortSYSTEM
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:gfx1
Address RangeLengthLabel/LocationDescription
0x100000-0x1FFFFF1048576rally h-8.h8CRC(58dcd024) (Fluke: EE8A)
Memory Area:mcu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768wrdallas.binCRC(547d1768) (Fluke: 0BD8)
Memory Area:oki
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFFF1048576sound c-1.c1CRC(2d69c9b8),Same data in a single rom (Fluke: 88CF)
Memory Area:plds
Address RangeLengthLabel/LocationDescription
0x0000-0x0103260gal16v8-25lnc.h21
0x0000-0x0103260pal16r8-b15.binCRC(b50337a6) (Fluke: 8708)
0x0000-0x0103260tibpal20l8-25cnt.h15
0x0000-0x0103260tibpal20l8-25cnt.b23
0x0000-0x0103260pal16r4-e2.binCRC(15fee75c) (Fluke: 1484)
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