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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.
Long Beach (Olympia / Seletron, 1979)
Memory Area:lbeach_map
Address RangeLengthFunctionDescription
0x0000-0x00FF256RAM, Sharednvram
0x4000-0x41FF512RAM Write, Sharedlbeach_bg_vram_w, bg_vram
0x40001Readlbeach_in1_r
0x4200-0x43FF512RAM
0x4400-0x47FF1024RAM Write, Sharedlbeach_fg_vram_w, fg_vram
0x80001Write Only, Sharedscroll_y
0x80001Readlbeach_in2_r
0x80011Write Only, Sharedsprite_x
0x80021Write Only, Sharedsprite_code
0x80071Write NOP(// probably watchdog)
0xA0001Read PortIN0
0x0001Gas PedalActive High
0x0002Shifter 1st GearActive Low
0x0004Shifter 2nd GearActive Low
0x0008Shifter 3rd GearActive Low
0x0010Shifter 4th GearActive Low
0x0020Reset RecordActive Low
0x0040Coin CounterActive Low
0x0080Coin 1Active Low
0xC000-0xCFFF4096ROM
0xF000-0xFFFF4096ROM
 

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
0x0000-0x07FF204815.e2CRC(9f24897c)
0x0800-0x0FFF2048s2.d2CRC(c5d59466)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x03FF1024r.d1CRC(07e99395)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0x01FF51293448.h4BAD_DUMP CRC(0dca040d)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0xC000-0xC7FF2048x.c1CRC(767fc287)
0xC800-0xCFFF2048c2.c2CRC(9f30e0de)
0xF000-0xF7FF2048f03.c3CRC(6728aa45)
0xF800-0xFFFF2048f47.c4CRC(950f3154)
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