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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.
Last Duel (Capcom, 1988)
Memory Area:lastduel_map
Address RangeLengthFunctionDescription
0x0000-0x5FFFF393216ROM
0xFC0000-0xFC00034Write NOP(/* Written rarely */)
0xFC0800-0xFC0FFF2048RAM, Sharedspriteram
0xFC4000-0xFC40012Read Port, WriteP1_P2, lastduel_flip_w
0x0001Joystick RightActive Low
0x0002Joystick LeftActive Low
0x0004Joystick DownActive Low
0x0008Joystick UpActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040UnusedActive Low
0x0080UnusedActive Low
0x0100Joystick RightActive Low
0x0200Joystick LeftActive Low
0x0400Joystick DownActive Low
0x0800Joystick UpActive Low
0x1000Button 1Active Low
0x2000Button 2Active Low
0x4000UnusedActive Low
0x8000UnusedActive Low
0xFC4002-0xFC40032Read Port, WriteSYSTEM, lastduel_sound_w
0x0001Start 1Active Low
0x0002Start 2Active Low
0x0004UnknownActive Low
0x0010UnknownActive Low
0x0020Service 1Active Low
0x0040Coin 2Active Low
0x0080Coin 1Active Low
0xFC4004-0xFC40052Read PortDSW1
0x0007Coin_BActive High
0x00004C_1CActive High
0x00013C_1CActive High
0x00022C_1CActive High
0x00071C_1CActive High
0x00061C_2CActive High
0x00051C_3CActive High
0x00041C_4CActive High
0x00031C_6CActive High
0x0038Coin_AActive High
0x00004C_1CActive High
0x00083C_1CActive High
0x00102C_1CActive High
0x00381C_1CActive High
0x00301C_2CActive High
0x00281C_3CActive High
0x00201C_4CActive High
0x00181C_6CActive High
0x0300DifficultyActive High
0x0200EasyActive High
0x0300NormalActive High
0x0100DifficultActive High
0x0000Very_DifficultActive High
0x3000Bonus_LifeActive High
0x200020000 60000 80000Active High
0x300030000 80000 80000Active High
0x100040000 80000 80000Active High
0x000040000 80000 100000Active High
0xFC4006-0xFC40072Read PortDSW2
0x0003LivesActive High
0x00033Active High
0x00024Active High
0x00016Active High
0x00008Active High
0x0004Start from Auto StageActive High
0x0000Start from Plane StageActive High
0x0020Demo_SoundsActive High
0x0000OffActive High
0x0020OnActive High
0x0040Allow_ContinueActive High
0x0000NoActive High
0x0040YesActive High
0x0080Flip_ScreenActive High
0x0080OffActive High
0x0000OnActive High
0xFC8000-0xFC800F16Writelastduel_scroll_w
0xFCC000-0xFCDFFF8192RAM Write, Sharedlastduel_vram_w, vram
0xFD0000-0xFD3FFF16384RAM Write, Sharedlastduel_scroll1_w, scroll1
0xFD4000-0xFD7FFF16384RAM Write, Sharedlastduel_scroll2_w, scroll2
0xFD8000-0xFD87FF2048RAM Write, Sharedlastduel_palette_word_w, paletteram
0xFE0000-0xFFFFFF131072RAM
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0xDFFF57344ROM
0xE000-0xE7FF2048RAM
0xE800-0xE8012Device Read/Writeym1, ym2203_device, read, write
0xF000-0xF0012Device Read/Writeym2, ym2203_device, read, write
0xF8001Device Readsoundlatch, generic_latch_8_device, read
 

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:audiocpu
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536ld_02.16hCRC(91834d0c) (Fluke: F75E)
0x0000-0xFFFF65536ld_02.16hCRC(91834d0c) (Fluke: F75E)
0x0000-0xFFFF65536ld_02.16hCRC(91834d0c) (Fluke: F75E)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768ld_01.12fCRC(ad3c6f87),8x8 text (Fluke: C192)
0x0000-0x7FFF32768ld_01.12fCRC(ad3c6f87),8x8 text (Fluke: C192)
0x0000-0x7FFF32768ld_01.12fCRC(ad3c6f87),8x8 text (Fluke: C192)
Memory Area:gfx4
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288ld-14.15nCRC(d0653739),tiles (Fluke: B180)
0x0000-0x7FFFF524288ld-14.15nCRC(d0653739),tiles (Fluke: B180)
0x0000-0x7FFFF524288ld-14.15nCRC(d0653739),tiles (Fluke: B180)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256ld.3dCRC(729a1ddc),priority (not used) BPROM type 63S141 or compatible like 82S129A (Fluke: ACF2)
0x0000-0x00FF256ld.3dCRC(729a1ddc),priority (not used) BPROM type 63S141 or compatible like 82S129A (Fluke: ACF2)
0x0000-0x00FF256ld.3dCRC(729a1ddc),priority (not used) BPROM type 63S141 or compatible like 82S129A (Fluke: ACF2)
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