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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.
Air Buster: Trouble Specialty Raid Unit (Kaneko (Namco license), 1990)
Memory Area:master_io_map
Address RangeLengthFunctionDescription
0x00001Writemaster_bankswitch_w
0x00011Write NOP(// ???)
0x00021Writemaster_nmi_trigger_w
Memory Area:master_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xBFFF16384ROM Bankmasterbank
0xC000-0xCFFF4096Device Read/Writepandora, kaneko_pandora_device, spriteram_r, spriteram_w
0x0002Flip_ScreenActive High
0x0002OffActive High
0x0000OnActive High
0x0008Mode 1Active High
0x0000Mode 2Active High
0x0030Coin_AActive High
0x00202C_1CActive High
0x00301C_1CActive High
0x00101C_2CActive High
0x00001C_6CActive High
0x00202C_1CActive High
0x00301C_1CActive High
0x00101C_3CActive High
0x00001C_4CActive High
0x00c0Coin_BActive High
0x00802C_1CActive High
0x00c01C_1CActive High
0x00401C_2CActive High
0x00001C_6CActive High
0x00802C_1CActive High
0x00c01C_1CActive High
0x00401C_3CActive High
0x00001C_4CActive High
0xD000-0xDFFF4096RAM
0xE000-0xEFFF4096RAM, Shareddevram (// shared with protection device)
0xF000-0xFFFF4096RAM, Sharedshare1
Memory Area:slave_io_map
Address RangeLengthFunctionDescription
0x00001Writeslave_bankswitch_w
0x00021Read/Writesoundcommand2_r, soundcommand_w
0x0004-0x000C9Writescrollregs_w
0x000E1Readsoundcommand_status_r
0x00201Read PortP1
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0x00221Read PortP2
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0x00241Read PortSYSTEM
0x0001Start 1Active Low
0x0002Start 2Active Low
0x0004Coin 1Active Low
0x0008Coin 2Active Low
0x0010UnknownActive Low
0x0020UnknownActive Low
0x0040Service 1Active Low
0x0080UnknownActive Low
0x00281Writecoin_counter_w
0x00381Write NOP(// irq ack / irq mask)
Memory Area:slave_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xBFFF16384ROM Bankslavebank
0xC000-0xC3FF1024RAM Write, Sharedvideoram2_w, videoram2
0xC400-0xC7FF1024RAM Write, Sharedcolorram2_w, colorram2
0xC800-0xCBFF1024RAM Write, Sharedvideoram_w, videoram
0xCC00-0xCFFF1024RAM Write, Sharedcolorram_w, colorram
0xD000-0xD5FF1536RAM Device Write, Sharedpalette, palette_device, write, palette
0xD600-0xDFFF2560RAM
0xE000-0xEFFF4096RAM
0xF000-0xFFFF4096RAM, Sharedshare1
Memory Area:sound_io_map
Address RangeLengthFunctionDescription
0x00001Writesound_bankswitch_w
0x0002-0x00032Device Read/Writeymsnd, ym2203_device, read, write
0x00041Device Read/Writeoki, okim6295_device, read, write
0x00061Read/Writesoundcommand_r, soundcommand2_w
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xBFFF16384ROM Bankaudiobank
0xC000-0xDFFF8192RAM
 

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
0x0000-0x1FFFF131072pr-21.binCRC(6e0a5df0) (Fluke: 642A)
0x0000-0x1FFFF131072pr-21.binCRC(6e0a5df0) (Fluke: 642A)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288pr-000.binCRC(8ca68f0d) (Fluke: F366)
0x0000-0x7FFFF524288pr-000.binCRC(8ca68f0d) (Fluke: F366)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288pr-001.binCRC(7e6cb377) (Fluke: F835)
0x0000-0x7FFFF524288pr-001.binCRC(7e6cb377) (Fluke: F835)
0x80000-0x8FFFF65536pr-02.binCRC(6bbd5e46) (Fluke: 3405)
0x80000-0x8FFFF65536pr-02.binCRC(6bbd5e46) (Fluke: 3405)
Memory Area:master
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072pr12.h19CRC(91362eb2) (Fluke: EE86)
Memory Area:mcu
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096i80c51
0x0000-0x0FFF4096i80c51
Memory Area:oki
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF262144pr-200.binCRC(a4dd3390) (Fluke: 2944)
0x0000-0x3FFFF262144pr-200.binCRC(a4dd3390) (Fluke: 2944)
Memory Area:slave
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072pr13.l15CRC(13b2257b) (Fluke: 2DDE)
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