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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.
Speed Ball (Tecfri / Desystem S.A., 1987)
Memory Area:main_cpu_io_map
Address RangeLengthFunctionDescription
0x00001Read PortDSW2
0x0007Bonus_LifeActive High
0x000670000 200000 1MActive High
0x000770000 200000Active High
0x0003100000 300000 1MActive High
0x0004100000 300000Active High
0x0001200000 1MActive High
0x0005200000Active High
0x0002200000 (duplicate)Active High
0x0000NoneActive High
0x0008UnknownActive High
0x0008OffActive High
0x0000OnActive High
0x0030Very_EasyActive High
0x0020EasyActive High
0x0010DifficultActive High
0x0000Very_DifficultActive High
0x00c0Very_EasyActive High
0x0080EasyActive High
0x0040DifficultActive High
0x0000Very_DifficultActive High
0x00101Read PortDSW1
0x0003Coin_BActive High
0x00031C_2CActive High
0x00021C_3CActive High
0x00011C_4CActive High
0x00001C_5CActive High
0x000cCoin_AActive High
0x00004C_1CActive High
0x00043C_1CActive High
0x00082C_1CActive High
0x000c1C_1CActive High
0x0030LivesActive High
0x00002Active High
0x00303Active High
0x00204Active High
0x00105Active High
0x0040CabinetActive High
0x0000UprightActive High
0x0040CocktailActive High
0x0080Demo_SoundsActive High
0x0000OffActive High
0x0080OnActive High
0x00201Read PortP1
0x0001Button 1Active Low
0x0002Button 2Active Low
0x0004Button 4Active Low
0x0008Button 3Active Low
0x0010Start 2Active Low
0x0020Start 1Active Low
0x0040Coin 2Active Low
0x0080Coin 1Active Low
0x00301Read PortP2
0x0001Button 1Active Low
0x0002Button 2Active Low
0x0004Button 4Active Low
0x0008Button 3Active Low
0x0010TiltActive Low
0x0020UnknownActive High
0x0040UnknownActive High
0x0080UnknownActive High
0x00401Writecoincounter_w
0x00501Writemaincpu_50_w
Memory Area:main_cpu_map
Address RangeLengthFunctionDescription
0x0000-0xDBFF56320ROM
0xDC00-0xDFFF1024RAM, Sharedshare1 (// shared with SOUND)
0xE000-0xE1FF512RAM Write, Sharedbackground_videoram_w, bg_videoram
0xE800-0xEFFF2048RAM Write, Sharedforeground_videoram_w, fg_videoram
0xF000-0xF5FF1536RAM Device Write, Sharedpalette, palette_device, write, palette
0xF600-0xFEFF2304RAM
0xFF00-0xFFFF256RAM, Sharedspriteram
Memory Area:sound_cpu_io_map
Address RangeLengthFunctionDescription
0x0000-0x00012Device Read/Writeymsnd, ym3812_device, read, write
0x00401Writeleds_output_block
0x00801Writeleds_start_block
0x00821Write NOP(// ?)
0x00C11Writeleds_shift_bit
Memory Area:sound_cpu_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0xD800-0xDBFF1024RAM
0xDC00-0xDFFF1024RAM, Sharedshare1 (// shared with MAIN CPU)
 

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
0x0000-0x7FFF32768sb2.binCRC(e6a6d9b7) (Fluke: 4FD5)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768sb10.binCRC(36dea4bf),chars (Fluke: D544)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768sb9.binCRC(b567e85e),bg tiles (Fluke: 9F82)
0x8000-0xFFFF32768sb5.binCRC(b0eae4ba) (Fluke: 0A61)
0x10000-0x17FFF32768sb8.binCRC(d2bfbdb6) (Fluke: 3560)
0x18000-0x1FFFF32768sb4.binCRC(1d23a130) (Fluke: 775F)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768sb1.binCRC(1c242e34) (Fluke: F6A2)
0x8000-0xFFFF32768sb3.binCRC(7682326a) (Fluke: A0CD)
Memory Area:sprites
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768sb7.binCRC(9f1b33d1),sprites (Fluke: 8F64)
0x8000-0xFFFF32768sb6.binCRC(0e2506eb) (Fluke: 522F)
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