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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.
18 Wheeler (Midway, 1979)
Memory Area:mw18w_map
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192ROM
0x2000-0x23FF1024RAM
Memory Area:mw18w_portmap
Address RangeLengthFunctionDescription
0x00001Read Port, WriteIN0, mw18w_sound0_w
0x00011Read Port, WriteIN1, mw18w_sound1_w
0x00021Read Port, WriteIN2, mw18w_lamps_w
0x00031Read Port, WriteDSW, mw18w_led_display_w
0x00041Read PortIN4
0x00061Device Writewatchdog, watchdog_timer_device, reset_w
0x00071Writemw18w_irq0_clear_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:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF204818w_b1.rom1CRC(200c5beb)
0x0000-0x07FF204818w_b1.rom1CRC(200c5beb)
0x0800-0x0FFF204818w_a2.rom2CRC(efbadee8)
0x1000-0x17FF204818w_b3.rom3CRC(214606f6)
0x1000-0x17FF204818w_b3.rom3CRC(214606f6)
0x1800-0x1FFF204818w_a4.rom4CRC(e88ad6a9)
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