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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.
Stunt Air (Nuova Videotron, 1983)
Memory Area:stuntair_map
Address RangeLengthFunctionDescription
0x0000-0x9FFF40960ROM
0xC000-0xC7FF2048RAM
0xC800-0xCBFF1024RAM Write, Sharedstuntair_bgattrram_w, bgattrram
0xD000-0xD3FF1024RAM Write, Sharedstuntair_bgram_w, bgram
0xD800-0xDFFF2048RAM, Sharedsprram
0xE0001Read Port, WriteDSWB, stuntair_coin_w
0x0018Coin_AActive High
0x00082C_1CActive High
0x00001C_1CActive High
0x00181 Coin/1 Credit - 2 Coins/3 CreditsActive High
0x00101C_2CActive High
0x0024Coin_BActive High
0x00042C_1CActive High
0x00001C_1CActive High
0x00241 Coin/1 Credit - 2 Coins/3 CreditsActive High
0x00201C_2CActive High
0x0042Bonus_LifeActive High
0x000010000 20000Active High
0x004020000 30000Active High
0x000230000 50000Active High
0x004250000 100000Active High
0x00002Active High
0x00803Active High
0x00014Active High
0x00815Active High
0xE8001Read Port, WriteDSWA, stuntair_bgxscroll_w
0x0028DifficultyActive High
0x0000EasyActive High
0x0008NormalActive High
0x0020HardActive High
0x0028HardestActive High
0x0000OffActive High
0x0004OnActive High
0xF0001Read PortIN2
0x0001Button 1Active Low
0x0002Button 2Active Low
0x0004UnusedActive Low
0x0008UnusedActive Low
0x0010Joystick LeftActive Low
0x0020Joystick UpActive Low
0x0040Joystick DownActive Low
0x0080Joystick RightActive Low
0xF0011Writestuntair_nmienable_w
0xF0021Read PortIN3
0x0001Start 1Active Low
0x0002Start 2Active Low
0x0004OffActive High
0x0000OnActive High
0x0008Coin 1Active Low
0x0010Coin 2Active Low
0x0020UnknownActive Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0xF0031Read NOP, Writestuntair_spritebank1_w
0xF0051Writestuntair_spritebank0_w
0xF800-0xFBFF1024RAM Write, Sharedstuntair_fgram_w, fgram
0xFC031Writestuntair_sound_w
Memory Area:stuntair_sound_map
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192ROM
0x4000-0x43FF1024RAM
Memory Area:stuntair_sound_portmap
Address RangeLengthFunctionDescription
0x00031Device Writeay2, ay8910_device, address_w
0x00071Device Writeay2, ay8910_device, data_w
0x000C-0x000D2Device Read/Writeay1, ay8910_device, data_r, address_data_w
 

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
0x0000-0x1FFF8192stuntair.e14CRC(641fc9db)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192stuntair.a9CRC(bfd861f5)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192stuntair.a11CRC(421fef4c)
0x2000-0x3FFF8192stuntair.a12CRC(e6ee7489)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192stuntair.a13CRC(bfdc0d38)
0x2000-0x3FFF8192stuntair.a15CRC(4531cab5)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192stuntair.a0CRC(f61c4a1d)
0x2000-0x3FFF8192stuntair.a1CRC(1546f041)
0x4000-0x5FFF8192stuntair.a3CRC(63d00b97)
0x6000-0x7FFF8192stuntair.a4CRC(01fe2697)
0x8000-0x9FFF8192stuntair.a6CRC(6704d05c)
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