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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.
Power Balls (Playmark, 1994)
Memory Area:powerbal_main_map
Address RangeLengthFunctionDescription
0x0000-0x7FFFF524288ROM
0x88000-0x883FF1024RAM Device Write, Sharedpalette, palette_device, write, palette
0x94000-0x940012Write NOP
0x94002-0x940032Write NOP
0x94004-0x940052Writetile_banking_w
0x98000-0x98FFF4096RAM Write, Sharedmagicstk_bgvideoram_w, videoram1
0x99000-0x9BFFF12288RAM(// not used)
0xC2010-0xC20112Read PortIN0
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0004UnknownActive Low
0x0008UnknownActive Low
0x0010UnknownActive Low
0x0020UnknownActive Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0xC2012-0xC20132Read PortIN1
0x0001Joystick RightActive Low
0x0002Joystick LeftActive Low
0x0004Joystick DownActive Low
0x0008Joystick UpActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040UnusedActive Low
0x0080Start 1Active Low
0xC2014-0xC20152Read PortIN2
0x0001Joystick RightActive Low
0x0002Joystick LeftActive Low
0x0004Joystick DownActive Low
0x0008Joystick UpActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040UnusedActive Low
0x0080Start 2Active Low
0xC2016-0xC20172Read PortDSW1
0x0001OffActive High
0x0000OnActive High
0x0000NoActive High
0x0002YesActive High
0x00086C_1CActive High
0x000c5C_1CActive High
0x00104C_1CActive High
0x00143C_1CActive High
0x00182C_1CActive High
0x00043C_2CActive High
0x00004C_3CActive High
0x001c1C_1CActive High
0x00e01C_1CActive High
0x00003C_4CActive High
0x00202C_3CActive High
0x00c01C_2CActive High
0x00a01C_3CActive High
0x00801C_4CActive High
0x00601C_5CActive High
0x00401C_6CActive High
0xC2018-0xC20192Read PortDSW2
0x0000OffActive High
0x0001OnActive High
0x0002OffActive High
0x0000OnActive High
0x0004OffActive High
0x0000OnActive High
0x0008EnglishActive High
0x0000ItalianActive High
0x00301Active High
0x00202Active High
0x00103Active High
0x00004Active High
0x00c0EasyActive High
0x0080NormalActive High
0x0040HardActive High
0x0000Very_HardActive High
0xC201C-0xC201D2Writeoki_banking
0xC201E-0xC201F2Device Read/Write 8-bitoki, okim6295_device, read, write, 0x00ff
0xC4000-0xC40012Write NOP
0xF0000-0xFFFFF65536RAM
0x101000-0x101FFF4096RAM, Sharedspriteram
0x102000-0x10200D14Write NOP(// not used scroll regs?)
0x103000-0x103FFF4096RAM
 

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:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF5242884.u38CRC(a60aa981) (Fluke: B9B7)
0x80000-0xFFFFF5242885.u42CRC(966c71df) (Fluke: 0336)
0x100000-0x17FFFF5242886.u39CRC(668957b9) (Fluke: E2EC)
0x180000-0x1FFFFF5242887.u45CRC(f5721c66) (Fluke: 6A3A)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF5242888.u86CRC(4130694c) (Fluke: 177A)
0x80000-0xFFFFF5242889.u85CRC(e7bcd2e7) (Fluke: DF0A)
0x100000-0x17FFFF52428810.u84CRC(90412135) (Fluke: 8970)
0x180000-0x1FFFFF52428811.u83CRC(92d7d40a) (Fluke: C023)
Memory Area:oki
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF2621441.u16CRC(12776dbc) (Fluke: 9943)
Memory Area:plds
Address RangeLengthLabel/LocationDescription
0x0000-0x0116279palce16v8h.u102PAL is read protected
0x0200-0x04DC733palce22v10h.u183PAL is read protected
0x0600-0x08DC733palce22v10h.u211PAL is read protected
0x0A00-0x0CDC733palce22v10h.binPAL is soldered
0x0E00-0x10DC733pal22v10a.binPAL is soldered
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