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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.
Aero Fighters (Video System Co., 1992)
Memory Area:aerofgt_map
Address RangeLengthFunctionDescription
0x0000-0x7FFFF524288ROM
0x1A0000-0x1A07FF2048RAM Device Write, Sharedpalette, palette_device, write, palette
0x1B0000-0x1B07FF2048RAM, Sharedrasterram (/* used only for the scroll registers */)
0x1B0800-0x1B08012Read/Write NOP(/* ??? */)
0x1B0FF0-0x1B0FFF16RAM(/* stack area during boot */)
0x1B2000-0x1B3FFF8192RAM Write, Sharedaerofgt_bg1videoram_w, bg1videoram
0x1B4000-0x1B5FFF8192RAM Write, Sharedaerofgt_bg2videoram_w, bg2videoram
0x1C0000-0x1C7FFF32768RAM, Sharedspriteram1
0x1D0000-0x1D1FFF8192RAM, Sharedspriteram3
0xFEF000-0xFFEFFF65536RAM(/* work RAM */)
0xFFFF80-0xFFFF878Writeaerofgt_gfxbank_w
0xFFFF88-0xFFFF892Writeaerofgt_bg1scrolly_w (/* + something else in the top byte */)
0xFFFF90-0xFFFF912Writeaerofgt_bg2scrolly_w (/* + something else in the top byte */)
0xFFFFA0-0xFFFFA12Read PortP1
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0xFFFFA2-0xFFFFA32Read PortP2
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0xFFFFA4-0xFFFFA52Read PortSYSTEM
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0004Start 1Active Low
0x0008Start 2Active Low
0x0010UnknownActive Low
0x0020UnknownActive Low
0x0040Service 1Active Low
0x0080UnknownActive Low
0xFFFFA6-0xFFFFA72Read PortDSW1
0x0001SameActive High
0x0000IndividualActive High
0x000eCoin_AActive High
0x000a3C_1CActive High
0x000c2C_1CActive High
0x000e1C_1CActive High
0x00081C_2CActive High
0x00061C_3CActive High
0x00041C_4CActive High
0x00021C_5CActive High
0x00001C_6CActive High
0x0070Coin_BActive High
0x00503C_1CActive High
0x00602C_1CActive High
0x00701C_1CActive High
0x00401C_2CActive High
0x00301C_3CActive High
0x00201C_4CActive High
0x00101C_5CActive High
0x00001C_6CActive High
0x0080Start 1 Coin/Continue 1 CoinActive High
0x0000Start 2 Coin/Continue 1 CoinActive High
0xFFFFA8-0xFFFFA92Read PortDSW2
0x0001Flip_ScreenActive High
0x0001OffActive High
0x0000OnActive High
0x0002Demo_SoundsActive High
0x0002OffActive High
0x0000OnActive High
0x000cDifficultyActive High
0x0008EasyActive High
0x000cNormalActive High
0x0004HardActive High
0x0000HardestActive High
0x0030LivesActive High
0x00201Active High
0x00102Active High
0x00303Active High
0x00004Active High
0x0040Bonus_LifeActive High
0x0040200000Active High
0x0000300000Active High
0xFFFFAC-0xFFFFAD2Read, Write NOPpending_command_r, (/* ??? */)
0xFFFFAE-0xFFFFAF2Read PortDSW3
0x0000AnyActive High
0x000fUSA/CanadaActive High
0x000eKoreaActive High
0x000dHong_KongActive High
0x000bTaiwanActive High
0xFFFFC0-0xFFFFC12Writesound_command_w
Memory Area:aerofgt_sound_portmap
Address RangeLengthFunctionDescription
0x0000-0x00034Device Read/Writeymsnd, ym2610_device, read, write
0x00041Writeaerofgt_sh_bankswitch_w
0x00081Writepending_command_clear_w
0x000C1Device Readsoundlatch, generic_latch_8_device, read
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0x77FF30720ROM
0x7800-0x7FFF2048RAM
0x8000-0xFFFF32768ROM Bankbank1
 

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
0x0000-0x1FFFF1310722.153CRC(a1ef64ec) (Fluke: EA46)
0x0000-0x1FFFF1310722.153CRC(a1ef64ec) (Fluke: EA46)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288538a54.124CRC(4d2c4df2) (Fluke: 5AF2)
0x80000-0xFFFFF5242881538a54.124CRC(286d109e) (Fluke: CD5A)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFFF1048576538a53.u9CRC(630d8e0b) (Fluke: 173F)
0x200000-0x27FFFF524288534g8f.u18CRC(76ce0926) (Fluke: E759)
Memory Area:ymsnd
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFFF1048576it-19-06CRC(cdbbdb1d) (Fluke: 2FE6)
0x0000-0xFFFFF1048576it-19-06CRC(cdbbdb1d) (Fluke: 2FE6)
0x0000-0xFFFFF1048576it-19-06CRC(cdbbdb1d) (Fluke: 2FE6)
Memory Area:ymsnd.deltat
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF262144it-19-01CRC(6d42723d) (Fluke: 85C4)
0x0000-0x3FFFF262144it-19-01CRC(6d42723d) (Fluke: 85C4)
0x0000-0x3FFFF262144it-19-01CRC(6d42723d) (Fluke: 85C4)
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