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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.
Lasso (SNK, 1982)
Memory Area:lasso_audio_map
Address RangeLengthFunctionDescription
0x0000-0x01FF512RAM
0x5000-0x7FFF12288ROM
0xB0001Write Only, Sharedchip_data
0xB0011Writesound_select_w
0xB0041Readsound_status_r
0xB0051Device Readsoundlatch, generic_latch_8_device, read
0xF000-0xFFFF4096ROM, Regionaudiocpu, 0x7000
Memory Area:lasso_coprocessor_map
Address RangeLengthFunctionDescription
0x0000-0x07FF2048RAM, Sharedshare1
0x2000-0x3FFF8192RAM, Sharedbitmap_ram
0x8000-0x8FFF4096Mirror, ROM0x7000,
Memory Area:lasso_main_map
Address RangeLengthFunctionDescription
0x0000-0x03FF1024RAM
0x0400-0x07FF1024RAM Write, Sharedlasso_videoram_w, videoram
0x0800-0x0BFF1024RAM Write, Sharedlasso_colorram_w, colorram
0x0C00-0x0C7F128RAM, Sharedspriteram
0x1000-0x17FF2048RAM, Sharedshare1
0x18001Writesound_command_w
0x18011Write Only, Sharedback_color
0x18021Writelasso_video_control_w
0x18041Read Port1804
0x0001Joystick RightActive High
0x0002Joystick LeftActive High
0x0004Joystick UpActive High
0x0008Joystick DownActive High
0x0010Button 1Active High
0x0020Button 2Active High
0x0040UnusedActive High
0x0080UnusedActive High
0x18051Read Port1805
0x0001Joystick RightActive High
0x0002Joystick LeftActive High
0x0004Joystick UpActive High
0x0008Joystick DownActive High
0x0010Button 1Active High
0x0020Button 2Active High
0x0040UnusedActive High
0x0080UnusedActive High
0x18061Read Port, Write NOP1806, (/* game uses 'lsr' to read port */)
0x0001CabinetActive High
0x0001UprightActive High
0x0000CocktailActive High
0x000eCoin_AActive High
0x00022C_1CActive High
0x00001C_1CActive High
0x00081C_2CActive High
0x00041C_3CActive High
0x000c1C_6CActive High
0x00061C_1CActive High
0x000a1C_1CActive High
0x000e1C_1CActive High
0x0030LivesActive High
0x00003Active High
0x00104Active High
0x00205Active High
0x00303Active High
0x0040Coin_BActive High
0x00402C_1CActive High
0x00001C_1CActive High
0x0000NoActive High
0x0080YesActive High
0x18071Read Port1807
0x0001NoActive High
0x0000YesActive High
0x0000EnglishActive High
0x0002GermanActive High
0x0000OffActive High
0x0008OnActive High
0x0010Coin 2Active Low
0x0020Coin 1Active Low
0x0040Start 2Active High
0x0080Start 1Active High
0x8000-0xBFFF16384Mirror, ROM0x4000,
 

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
0x5000-0x5FFF4096wmcCRC(8b4eb242) (Fluke: 7A86)
0x6000-0x6FFF4096wmbCRC(4658bcb9) (Fluke: BE69)
0x7000-0x7FFF4096wmaCRC(2e7de3e9) (Fluke: 48E9)
Memory Area:blitter
Address RangeLengthLabel/LocationDescription
0x8000-0x8FFF4096wm5CRC(7dc3ff07) (Fluke: F5C8)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048wm1CRC(7db77256) (Fluke: DB89)
0x2000-0x27FF2048wm2CRC(9e7d0b6f) (Fluke: 35A9)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x8000-0x9FFF8192wm3CRC(f93addd6) (Fluke: DE06)
0xA000-0xBFFF8192wm4CRC(77719859) (Fluke: DCC5)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x001F3282s123.69CRC(1eabb04d) (Fluke: 15AB)
0x0020-0x003F3282s123.70CRC(09060f8c) (Fluke: EE44)
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