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.
Memory Area:bank4000_map
Address RangeLengthFunctionDescription
0x0840-0x084F16Mirror, Device Read/Write0x8000, k053244, k05324x_device, k053244_r, k053244_w
0x0880-0x089F32Mirror, Device Read/Write0x8000, k054000, k054000_device, read, write
0x08C61Mirror, Device Write0x8000, soundlatch, generic_latch_8_device, write (//cmd_w)
0x08C71Mirror, Write0x8000, sound_irq_w
0x08CA1Mirror, Read0x8000, sound_status_r
0x1000-0x17FF2048Mirror, Device Read/Write0x8000, k053244, k05324x_device, k053245_r, k053245_w
0x2000-0x27FF2048Device Read/Writek056832, k056832_device, ram_code_lo_r, ram_code_lo_w
0x2800-0x2FFF2048Device Read/Writek056832, k056832_device, ram_code_hi_r, ram_code_hi_w
0x3000-0x37FF2048Device Read/Writek056832, k056832_device, ram_attr_lo_r, ram_attr_lo_w
0x3800-0x3FFF2048Device Read/Writek056832, k056832_device, ram_attr_hi_r, ram_attr_hi_w
0x4000-0x7FFF16384Mirror, RAM Device Write, Shared0x8000, palette, palette_device, write, palette
0xA000-0xBFFF8192Mirror0x4000 (// AM_DEVREAD("k056832", k056832_device, rom_byte_r))
Memory Area:le_main
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192ROM Bankbank1
0x2000-0x3FFF8192RAM(// work RAM)
0x4000-0x43FF1024Unknown AM_UNMAP(// first 0x400 bytes of palette RAM are inaccessible)
0x4000-0x403F64Device Writek056832, k056832_device, write
0x4000-0x7FFF16384Devicebank4000, address_map_bank_device, amap8
0x4040-0x404F16Device Writek056832, k056832_device, b_w
0x40801Read NOP(// watchdog)
0x40901Read NOP
0x40A01Read NOP
0x40C41Writecontrol2_w
0x40C8-0x40D09Writelethalen_palette_control (// PCU1-PCU3 on the schematics)
0x40D4-0x40D74Readguns_r
0x40D81Read PortDSW
0x0001SpecialActive High
0x0002SpecialActive High
0x0004UnknownActive Low
0x0008UnknownActive Low
0x0010LanguageActive High
0x0010EnglishActive High
0x0000SpanishActive High
0x0020StreetActive High
0x0000ArcadeActive High
0x0040CommonActive High
0x0000IndependentActive High
0x0000MonoActive High
0x0080StereoActive High
0x40D91Read PortINPUTS
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0004Service 1Active Low
0x0010Button 1Active Low
0x0020Button 1Active Low
0x0040Start 1Active Low
0x0080Start 2Active Low
0x40DB1Readgunsaux_r (// top X bit of guns)
0x40DC1Writele_bankswitch_w
0x8000-0xFFFF32768ROM, Regionmaincpu, 0x38000
Memory Area:le_sound
Address RangeLengthFunctionDescription
0x0000-0xEFFF61440ROM
0xF000-0xF7FF2048RAM
0xF800-0xFA2F560Device Read/Writek054539, k054539_device, read, write
0xFC001Device Writesoundlatch2, generic_latch_8_device, write
0xFC021Device Readsoundlatch, generic_latch_8_device, read
0xFC031Read NOP
 

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:eeprom
Address RangeLengthLabel/LocationDescription
0x0000-0x007F128lethalenue.nvCRC(6e7224e6)
Memory Area:k054539
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFFF2097152191a03CRC(9b13fbe8) (Fluke: 1CA2)
0x0000-0x1FFFFF2097152191a03CRC(9b13fbe8) (Fluke: 1CA2)
0x0000-0x1FFFFF2097152191a03CRC(9b13fbe8) (Fluke: 1CA2)
0x0000-0x1FFFFF2097152191a03CRC(9b13fbe8) (Fluke: 1CA2)
0x0000-0x1FFFFF2097152191a03CRC(9b13fbe8) (Fluke: 1CA2)
0x0000-0x1FFFFF2097152191a03CRC(9b13fbe8) (Fluke: 1CA2)
0x0000-0x1FFFFF2097152191a03CRC(9b13fbe8) (Fluke: 1CA2)
0x0000-0x1FFFFF2097152191a03CRC(9b13fbe8) (Fluke: 1CA2)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF262144191uae01.u4CRC(dca340e3) (Fluke: 5B4F)
Memory Area:soundcpu
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536191a02.f4CRC(72b843cc) (Fluke: 8D52)
0x0000-0xFFFF65536191a02.f4CRC(72b843cc) (Fluke: 8D52)
0x0000-0xFFFF65536191a02.f4CRC(72b843cc) (Fluke: 8D52)
0x0000-0xFFFF65536191a02.f4CRC(72b843cc) (Fluke: 8D52)
0x0000-0xFFFF65536191a02.f4CRC(72b843cc) (Fluke: 8D52)
0x0000-0xFFFF65536191a02.f4CRC(72b843cc) (Fluke: 8D52)
0x0000-0xFFFF65536191a02.f4CRC(72b843cc) (Fluke: 8D52)
0x0000-0xFFFF65536191a02.f4CRC(72b843cc) (Fluke: 8D52)
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