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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.
Gals Pinball (Comad, 1996)
Memory Area:audio_map
Address RangeLengthFunctionDescription
0x0000-0xEFFF61440ROM
0xF000-0xF7FF2048RAM
0xF8001Device Read/Writeoki, okim6295_device, read, write
0xF810-0xF8112Device Writeymsnd, ym3812_device, write
0xFC001Read/Write NOP(/* irq ack ?? */)
0xFC201Device Readsoundlatch, generic_latch_8_device, read
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0x3FFFFF4194304ROM
0x700000-0x703FFF16384RAM(/* galspnbl work RAM */)
0x708000-0x70FFFF32768RAM(/* galspnbl work RAM, bitmaps are decompressed here */)
0x800000-0x803FFF16384RAM(/* hotpinbl work RAM */)
0x808000-0x80FFFF32768RAM(/* hotpinbl work RAM, bitmaps are decompressed here */)
0x880000-0x880FFF4096RAM, Sharedspriteram
0x8FF400-0x8FFFFF3072Write NOP(/* ??? */)
0x900000-0x900FFF4096RAM, Sharedcolorram
0x901000-0x903FFF12288Write NOP(/* ??? */)
0x904000-0x904FFF4096RAM, Sharedvideoram
0x905000-0x907FFF12288Write NOP(/* ??? */)
0x980000-0x9BFFFF262144RAM, Sharedbgvideoram
0xA00000-0xA00FFF4096Write NOP(/* more palette ? */)
0xA01000-0xA017FF2048Device Write, Sharedpalette, palette_device, write, palette
0xA01800-0xA027FF4096Write NOP(/* more palette ? */)
0xA80000-0xA800012Read PortIN0
0x0001UnknownActive Low
0x0002UnknownActive Low
0x0004UnusedActive Low
0x0008UnusedActive Low
0x0010Left FlippersActive Low
0x0020Launch Ball / Shake (Left SideActive Low
0x0040UnknownActive Low
0x0080UnusedActive Low
0xA80010-0xA800112Read Port, WriteIN1, soundcommand_w
0x0001UnusedActive Low
0x0002UnusedActive Low
0x0004UnusedActive Low
0x0008UnusedActive Low
0x0010Launch Ball / Shake (Right SideActive Low
0x0020Right FlippersActive Low
0x0040UnknownActive Low
0x0080UnusedActive Low
0xA80020-0xA800212Read Port, Write NOPSYSTEM, (/* w - could be watchdog, but causes resets when picture is shown */)
0x0001Coin 1Active High
0x0002Coin 2Active High
0x0004StartActive Low
0x0008UnusedActive Low
0x0010UnusedActive Low
0x0020UnusedActive Low
0x0040UnusedActive Low
0x0080UnusedActive Low
0xA80030-0xA800312Read Port, Write NOPDSW1, (/* w - irq ack? */)
0x0003DifficultyActive High
0x0002EasyActive High
0x0003NormalActive High
0x0001HardActive High
0x0000Very_HardActive High
0x0004100K 500KActive High
0x000c200K 800KActive High
0x0008200K onlyActive High
0x0000NoneActive High
0x0010NormalActive High
0x0000HardActive High
0x0020OffActive High
0x0000OnActive High
0x0040Demo_SoundsActive High
0x0000OffActive High
0x0040OnActive High
0xA80040-0xA800412Read PortDSW2
0x0007Coin_AActive High
0x00024C_1CActive High
0x00033C_1CActive High
0x00042C_1CActive High
0x00012 Coins/1 Credit 3/2Active High
0x00071C_1CActive High
0x00061 Coin/1 Credit 2/3Active High
0x00001 Coin/1 Credit 5/6Active High
0x00051C_2CActive High
0x0038Coin_BActive High
0x00104C_1CActive High
0x00183C_1CActive High
0x00202C_1CActive High
0x00082 Coins/1 Credit 3/2Active High
0x00381C_1CActive High
0x00301 Coin/1 Credit 2/3Active High
0x00001 Coin/1 Credit 5/6Active High
0x00281C_2CActive High
0x00002Active High
0x00c03Active High
0x00804Active High
0x00405Active High
0xA80050-0xA800512Write Only, Sharedscroll (/* ??? */)
 

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
0x0000-0xFFFF655362.romCRC(fae688a7) (Fluke: 2B09)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF26214417.romCRC(7d435701) (Fluke: 3F72)
0x40000-0x7FFFF26214418.romCRC(136adaac) (Fluke: E16F)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF13107215.romCRC(4beb840d) (Fluke: 20D3)
0x20000-0x3FFFF13107216.romCRC(93d3c610) (Fluke: D7DA)
Memory Area:oki
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF2621441.romCRC(93c06d3d) (Fluke: D78C)
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