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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.
Spark Man (SunA, 1989)
Memory Area:hardhead_sound_io_map
Address RangeLengthFunctionDescription
0x00011Read NOP(// ? IRQ Ack)
Memory Area:hardhead_sound_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM(// ROM)
0xA000-0xA0012Device Read/Writeymsnd, ym3812_device, read, write
0xA002-0xA0032Device Writeaysnd, ay8910_device, address_data_w
0xC000-0xC7FF2048RAM(// RAM)
0xC8001Device Readymsnd, ym3812_device, status_port_r (// ? unsure)
0xD0001Device Writesoundlatch2, generic_latch_8_device, write (//)
0xD8001Device Readsoundlatch, generic_latch_8_device, read (// From Main CPU)
Memory Area:sparkman_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM(// ROM)
0x8000-0xBFFF16384ROM Bankbank1 (// Banked ROM)
0xC0001Read PortP1 (// P1 (Inputs))
0xC0011Read PortP2 (// P2)
0xC0021Read PortDSW1 (// DSW 1)
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
0x0038DifficultyActive High
0x0020EasiestActive High
0x0030Very_EasyActive High
0x0028EasyActive High
0x0038ModerateActive High
0x0018NormalActive High
0x0010HarderActive High
0x0008Very_HardActive High
0x0000HardestActive High
0x0080Demo_SoundsActive High
0x0080OffActive High
0x0000OnActive High
0xC0031Read PortDSW2 (// DSW 2)
0x0001Flip_ScreenActive High
0x0001OffActive High
0x0000OnActive High
0x0002CabinetActive High
0x0002UprightActive High
0x0000CocktailActive High
0x0000NoActive High
0x0004YesActive High
0x0038Bonus_LifeActive High
0x003810KActive High
0x002830KActive High
0x001850K, Every 50KActive High
0x002050KActive High
0x0010100K, Every 50KActive High
0x0008100K, Every 100KActive High
0x0000200K, Every 100KActive High
0x0030NoneActive High
0x00c0LivesActive High
0x00802Active High
0x00c03Active High
0x00404Active High
0x00005Active High
0xC0801Read PortBUTTONS (// Buttons)
0x0001Button 3Active Low
0x0002Button 3Active Low
0x0004UnknownActive Low
0x0008UnknownActive Low
0x0010UnknownActive Low
0x0020UnknownActive Low
0x0040UnknownActive Low
0x0080SpecialActive Low
0xC0A31Readsparkman_c0a3_r (// ???)
0xC200-0xC27F128Writesparkman_spritebank_w (// Sprite RAM Bank)
0xC280-0xC2FF128Writesparkman_rombank_latch_w (// ROM Bank Latch)
0xC300-0xC37F128Writesparkman_spritebank_latch_w (// Sprite RAM Bank Latch (Invert) + Flip Screen)
0xC380-0xC3FF128Writesparkman_write_disable_w (// Work RAM Writes Disable + NMI Enable)
0xC400-0xC47F128Writesparkman_rombank_w (// ROM Bank + Leds)
0xC4801Writesparkman_coin_counter_w (// Coin Counter)
0xC500-0xC57F128Writestarfigh_sound_latch_w (// To Sound CPU (can be disabled))
0xC600-0xC7FF512RAM Device Write, Sharedpalette, palette_device, write, palette (// Palette)
0xC800-0xDFFF6144RAM Write, Sharedsuna8_wram_w, wram (// RAM)
0xE000-0xFFFF8192Read/Writesuna8_banked_spriteram_r, suna8_banked_spriteram_w (// Sprites (Banked))
 

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
0x0000-0x7FFF3276814.h11CRC(06822f3d) (Fluke: 2BD7)
0x0000-0x7FFF3276814.h11CRC(06822f3d) (Fluke: 2BD7)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536p3.u1CRC(39dbd414) (Fluke: 4F86)
0x0000-0xFFFF65536p3.u1CRC(39dbd414) (Fluke: 4F86)
0x10000-0x1FFFF65536p2.t1CRC(2e474203) (Fluke: E029)
0x10000-0x1FFFF65536p2.t1CRC(2e474203) (Fluke: E029)
0x80000-0x8FFFF65536p6.u2CRC(e6551db9) (Fluke: 39CD)
0x80000-0x8FFFF65536p6.u2CRC(e6551db9) (Fluke: 39CD)
0x90000-0x9FFFF65536p5.t2CRC(0df5da2a) (Fluke: 1A0D)
0x90000-0x9FFFF65536p5.t2CRC(0df5da2a) (Fluke: 1A0D)
0xC0000-0xC7FFF32768p4.r2CRC(6904bde2) (Fluke: F50F)
0xC0000-0xC7FFF32768p4.r2CRC(6904bde2) (Fluke: F50F)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536p7.u4CRC(17c16ce4) (Fluke: 2EB6)
0x0000-0xFFFF65536p7.u4CRC(17c16ce4) (Fluke: 2EB6)
0x80000-0x8FFFF65536p8.u6CRC(414222ea) (Fluke: 6540)
0x80000-0x8FFFF65536p8.u6CRC(414222ea) (Fluke: 6540)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x10000-0x1FFFF6553610.g7CRC(48b4a31e) (Fluke: 1FE5)
0x10000-0x1FFFF6553610.g7CRC(48b4a31e) (Fluke: 1FE5)
0x20000-0x2FFFF6553612.g8CRC(b8a4a557) (Fluke: 1626)
0x20000-0x2FFFF6553612.g8CRC(b8a4a557) (Fluke: 1626)
0x30000-0x3FFFF6553611.i7CRC(f5f38e1f) (Fluke: 7F8A)
0x30000-0x3FFFF6553611.i7CRC(f5f38e1f) (Fluke: 7F8A)
0x40000-0x4FFFF6553613.i8CRC(e54eea25) (Fluke: DE8F)
0x40000-0x4FFFF6553613.i8CRC(e54eea25) (Fluke: DE8F)
Memory Area:samples
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF3276815.b10CRC(46c7d4d8) (Fluke: AE7C)
0x0000-0x7FFF3276815.b10CRC(46c7d4d8) (Fluke: AE7C)
0x8000-0xFFFF3276816.b11CRC(d6823a62) (Fluke: 4D7E)
0x8000-0xFFFF3276816.b11CRC(d6823a62) (Fluke: 4D7E)
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