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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 Mission (Data East Corporation, 1986)
Memory Area:lastmisn_map
Address RangeLengthFunctionDescription
0x0000-0x0FFF4096RAM, Sharedshare1
0x1000-0x13FF1024RAM Device Write, Sharedpalette, palette_device, write, palette
0x1400-0x17FF1024RAM Device Write, Sharedpalette, palette_device, write_ext, palette_ext
0x1800-0x18045Writeshackled_int_w
0x18001Read PortIN0
0x18011Read PortIN1
0x18021Read PortIN2
0x18031Read PortDSW0 (/* Dip 1 */)
0x18041Read PortDSW1 (/* Dip 2 */)
0x18051Writedec8_mxc06_karn_buffer_spriteram_w (/* DMA */)
0x18061Readi8751_h_r
0x18071Read/Writei8751_l_r, flip_screen_w
0x18091Writelastmisn_scrollx_w (/* Scroll LSB */)
0x180B1Writelastmisn_scrolly_w (/* Scroll LSB */)
0x180C1Writedec8_sound_w
0x180D1Writelastmisn_control_w (/* Bank switch + Scroll MSB */)
0x180E-0x180F2Writelastmisn_i8751_w
0x2000-0x27FF2048RAM Write, Shareddec8_videoram_w, videoram
0x2800-0x2FFF2048RAM, Sharedspriteram
0x3000-0x37FF2048RAM, Sharedshare2
0x3800-0x3FFF2048Read/Write, Shareddec8_bg_data_r, dec8_bg_data_w, bg_data
0x4000-0x7FFF16384ROM Bankbank1
0x8000-0xFFFF32768ROM
Memory Area:lastmisn_sub_map
Address RangeLengthFunctionDescription
0x0000-0x0FFF4096RAM, Sharedshare1
0x1000-0x13FF1024RAM Device Write, Sharedpalette, palette_device, write, palette
0x1400-0x17FF1024RAM Device Write, Sharedpalette, palette_device, write_ext, palette_ext
0x18001Read PortIN0
0x1800-0x18045Writeshackled_int_w
0x18011Read PortIN1
0x18021Read PortIN2
0x18031Read PortDSW0 (/* Dip 1 */)
0x18041Read PortDSW1 (/* Dip 2 */)
0x18051Writedec8_mxc06_karn_buffer_spriteram_w (/* DMA */)
0x18071Writeflip_screen_w
0x180C1Writedec8_sound_w
0x2000-0x27FF2048RAM Writedec8_videoram_w
0x2800-0x2FFF2048Write Only, Sharedspriteram
0x3000-0x37FF2048RAM, Sharedshare2
0x3800-0x3FFF2048Read/Writedec8_bg_data_r, dec8_bg_data_w
0x4000-0xFFFF49152ROM
Memory Area:ym3526_s_map
Address RangeLengthFunctionDescription
0x0000-0x05FF1536RAM
0x0800-0x08012Device Writeym1, ym2203_device, write
0x1000-0x10012Device Writeym2, ym3526_device, write
0x30001Device Readsoundlatch, generic_latch_8_device, read
0x8000-0xFFFF32768ROM
 

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
0x8000-0xFFFF32768dl05-.5hCRC(1a5df8c0) (Fluke: DF6B)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192dl01-.2aCRC(f3787a5d) (Fluke: 0E1D)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768dl11-.13fCRC(36579d3b) (Fluke: 2D2B)
0x20000-0x27FFF32768dl12-.9fCRC(2ba6737e) (Fluke: B886)
0x40000-0x47FFF32768dl13-.8fCRC(39a7dc93) (Fluke: 213D)
0x60000-0x67FFF32768dl10-.16fCRC(fe275ea8) (Fluke: E05B)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536dl09-.12kCRC(6a5a0c5d) (Fluke: FF21)
0x20000-0x2FFFF65536dl08-.14kCRC(3b38cfce) (Fluke: 14C7)
0x40000-0x4FFFF65536dl07-.15kCRC(1b60604d) (Fluke: CA15)
0x60000-0x6FFFF65536dl06-.17kCRC(c43c26a7) (Fluke: A562)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536dl02-.18hCRC(d0de2b5d) (Fluke: ED7C)
0x8000-0xFFFF32768dl03-.13hCRC(4be5e7e1) (Fluke: 6A24)
0x10000-0x1FFFF65536dl04-.7hCRC(f026adf9) (Fluke: B730)
Memory Area:mcu
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096id8751h.mcu
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256dl-14.9cCRC(2e55aa12),Priority (Not yet used) (Fluke: 4EDE)
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