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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.
Bouncing Balls (Comad, 1991)
Memory Area:bballs_map
Address RangeLengthFunctionDescription
0x0000-0x3FFFF262144ROM
0xE0800-0xE17FF4096RAM, Sharedspriteram
0xE4000-0xE40012Read Port, WriteP1_P2, tigeroad_videoctrl_w
0x0001Joystick RightActive Low
0x0002Joystick LeftActive Low
0x0004Joystick DownActive Low
0x0008Joystick UpActive Low
0x0010P1 Open/Close GateActive Low
0x0020P1 ZapActive Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0x0100Joystick RightActive Low
0x0200Joystick LeftActive Low
0x0400Joystick DownActive Low
0x0800Joystick UpActive Low
0x1000P2 Open/Close GateActive Low
0x2000P2 ZapActive Low
0x4000UnknownActive Low
0x8000UnknownActive Low
0xE4002-0xE40032Read Port, WriteSYSTEM, tigeroad_soundcmd_w
0x00ffUnknownActive Low
0x0100Start 1Active Low
0x0200Start 2Active Low
0x0400CustomActive Low
0x0800UnknownActive Low
0x1000UnknownActive Low
0x2000Service 1Active Low
0x4000Coin 1Active Low
0x8000Coin 2Active Low
0xE4004-0xE40052Read PortDSW
0x0007CoinageActive High
0x00005C_1CActive High
0x00014C_1CActive High
0x00023C_1CActive High
0x00032C_1CActive High
0x00071C_1CActive High
0x00061C_2CActive High
0x00051C_3CActive High
0x00041C_4CActive High
0x0008DifficultyActive High
0x0008EasyActive High
0x0000HardActive High
0x0010OffActive High
0x0000OnActive High
0x0020OffActive High
0x0000OnActive High
0x00c0LivesActive High
0x00c01Active High
0x00802Active High
0x00403Active High
0x00004Active High
0x01001Active High
0x00002Active High
0x0200NoActive High
0x0000YesActive High
0x2000UnknownActive High
0x2000OffActive High
0x0000OnActive High
0xc000Service_ModeActive High
0xc000OffActive High
0x8000OffActive High
0x4000Inputs/OutputsActive High
0x0000GraphicsActive High
0xE8000-0xE80034Writetigeroad_scroll_w
0xE800E-0xE800F2Write NOP(/* ? */)
0xEC000-0xEC7FF2048RAM Write, Sharedtigeroad_videoram_w, videoram
0xF8000-0xF87FF2048RAM Device Write, Sharedpalette, palette_device, write, palette
0xFC000-0xFFFFF16384RAM, Sharedram16
Memory Area:comad_sound_io_map
Address RangeLengthFunctionDescription
0x0000-0x00012Device Writeym1, ym2203_device, write
0x0080-0x00812Device Writeym2, ym2203_device, write
Memory Area:comad_sound_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0xC000-0xC7FF2048RAM
0xE0001Device Readsoundlatch, generic_latch_8_device, read
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0x3FFFF262144ROM
0xFE0800-0xFE0CFF1280RAM, Sharedspriteram
0xFE0D00-0xFE18072824RAM(/* still part of OBJ RAM */)
0xFE4000-0xFE40012Read Port, WriteP1_P2, tigeroad_videoctrl_w (/* char bank, coin counters, + ? */)
0x0001Joystick RightActive Low
0x0002Joystick LeftActive Low
0x0004Joystick DownActive Low
0x0008Joystick UpActive Low
0x0010P1 Open/Close GateActive Low
0x0020P1 ZapActive Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0x0100Joystick RightActive Low
0x0200Joystick LeftActive Low
0x0400Joystick DownActive Low
0x0800Joystick UpActive Low
0x1000P2 Open/Close GateActive Low
0x2000P2 ZapActive Low
0x4000UnknownActive Low
0x8000UnknownActive Low
0xFE4002-0xFE40032Read Port, WriteSYSTEM, tigeroad_soundcmd_w (/* AM_WRITE(tigeroad_soundcmd_w) is replaced in init for for f1dream protection */)
0x00ffUnknownActive Low
0x0100Start 1Active Low
0x0200Start 2Active Low
0x0400CustomActive Low
0x0800UnknownActive Low
0x1000UnknownActive Low
0x2000Service 1Active Low
0x4000Coin 1Active Low
0x8000Coin 2Active Low
0xFE4004-0xFE40052Read PortDSW
0x0007CoinageActive High
0x00005C_1CActive High
0x00014C_1CActive High
0x00023C_1CActive High
0x00032C_1CActive High
0x00071C_1CActive High
0x00061C_2CActive High
0x00051C_3CActive High
0x00041C_4CActive High
0x0008DifficultyActive High
0x0008EasyActive High
0x0000HardActive High
0x0010OffActive High
0x0000OnActive High
0x0020OffActive High
0x0000OnActive High
0x00c0LivesActive High
0x00c01Active High
0x00802Active High
0x00403Active High
0x00004Active High
0x01001Active High
0x00002Active High
0x0200NoActive High
0x0000YesActive High
0x2000UnknownActive High
0x2000OffActive High
0x0000OnActive High
0xc000Service_ModeActive High
0xc000OffActive High
0x8000OffActive High
0x4000Inputs/OutputsActive High
0x0000GraphicsActive High
0xFE8000-0xFE80034Writetigeroad_scroll_w
0xFE800E-0xFE800F2Write Only(/* fe800e = watchdog or IRQ acknowledge */)
0xFEC000-0xFEC7FF2048RAM Write, Sharedtigeroad_videoram_w, videoram
0xFF8000-0xFF87FF2048RAM Device Write, Sharedpalette, palette_device, write, palette
0xFFC000-0xFFFFFF16384RAM, Sharedram16
 

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
0x0000-0x7FFF32768bb13.n4CRC(1ef78175) (Fluke: 3D2C)
Memory Area:bgmap
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768bb10.l6CRC(d06498f9) (Fluke: 95CD)
Memory Area:cpu2
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF409668705.uc
0x0000-0x0FFF409668705.uc
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256bb_prom.e9CRC(ec80ae36),priority (not used) N82S129 BPROM (Fluke: 4F99)
0x0000-0x00FF256bb_prom.e9CRC(ec80ae36),priority (not used) N82S129 BPROM (Fluke: 4F99)
Memory Area:sprites
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536bb3.b2CRC(e35b383d) (Fluke: 8191)
0x10000-0x1FFFF65536bb2.b1CRC(a5b13236) (Fluke: 7D0A)
0x20000-0x2FFFF65536bb5.d2CRC(ffffccbf) (Fluke: 2439)
0x30000-0x3FFFF65536bb4.d1CRC(b77de5f8) (Fluke: BDE7)
Memory Area:text
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768bb1.g20CRC(b62dbcb8) (Fluke: 0D0D)
Memory Area:tiles
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536bb7.h2CRC(a352d53b) (Fluke: 2B5C)
0x10000-0x1FFFF65536bb9.j2CRC(78d185ac) (Fluke: CCA2)
0x20000-0x2FFFF65536bb6.h1CRC(0cada9ce) (Fluke: A6C5)
0x30000-0x3FFFF65536bb8.j1CRC(d55fe7c1) (Fluke: 3351)
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