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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.
Offroad Thunder (Midway Games, 2000)
Memory Area:midqslvr_io
Address RangeLengthFunctionDescription
0x00E8-0x00EF8Read/Write NOP
0x01F0-0x01F78Device Read/Write 16-bitide, ide_controller_device, read_cs0, write_cs0, 0xffffffff
0x03B0-0x03BF16Device Read/Write 8-bitvga, vga_device, port_03b0_r, port_03b0_w, 0xffffffff
0x03C0-0x03CF16Device Read/Write 8-bitvga, vga_device, port_03c0_r, port_03c0_w, 0xffffffff
0x03D0-0x03DF16Device Read/Write 8-bitvga, vga_device, port_03d0_r, port_03d0_w, 0xffffffff
0x03F0-0x03F78Device Read/Write 16-bitide, ide_controller_device, read_cs1, write_cs1, 0xffffffff
0x0CF8-0x0CFF8Device Read/Writepcibus, pci_bus_legacy_device, read, write
Memory Area:midqslvr_map
Address RangeLengthFunctionDescription
0x0000-0x9FFFF655360RAM
0xA0000-0xBFFFF131072Device Read/Write 8-bitvga, vga_device, mem_r, mem_w, 0xffffffff
0xC0000-0xC3FFF16384ROM Bank, Writevideo_bank1, isa_ram1_w
0xC4000-0xC7FFF16384ROM Bank, Writevideo_bank2, isa_ram2_w
0xE0000-0xE3FFF16384ROM Bank, Writebios_ext1, bios_ext1_ram_w
0xE4000-0xE7FFF16384ROM Bank, Writebios_ext2, bios_ext2_ram_w
0xE8000-0xEBFFF16384ROM Bank, Writebios_ext3, bios_ext3_ram_w
0xEC000-0xEFFFF16384ROM Bank, Writebios_ext4, bios_ext4_ram_w
0xF0000-0xFFFFF65536ROM Bank, Writebios_bank, bios_ram_w
0x100000-0x1FFFFFF32505856RAM
0xFFF80000-0xFFFFFFFF524288ROM, Regionbios, 0 (/* System BIOS */)
 

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.   
0x0000-0x7FFFF524288lh28f004sct.u8b1CRC(ab04a343)
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