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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.
World Beach Volley (Playmark, 1995)
Memory Area:wbeachvl_main_map
Address RangeLengthFunctionDescription
0x0000-0x7FFFF524288ROM
0x440000-0x440FFF4096RAM, Sharedspriteram
0x500000-0x501FFF8192RAM Write, Sharedwbeachvl_bgvideoram_w, videoram3
0x504000-0x505FFF8192RAM Write, Sharedwbeachvl_fgvideoram_w, videoram2
0x508000-0x509FFF8192RAM Write, Sharedwbeachvl_txvideoram_w, videoram1
0x50F000-0x50FFFF4096RAM, Sharedrowscroll
0x510000-0x51000B12Writewbeachvl_scroll_w
0x51000C-0x51000D2Write NOP(/* 2 and 3 */)
0x710010-0x7100112Read PortSYSTEM
0x0001Coin 1Active High
0x0002Coin 2Active High
0x0004Coin 3Active High
0x0008Coin 4Active High
0x0010Service 1Active High
0x0040SpecialActive High
0x0080SpecialActive High
0x710012-0x7100132Read PortP1
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040Button 3Active Low
0x0080Start 1Active Low
0x710014-0x7100152Read PortP2
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040Button 3Active Low
0x0080Start 2Active Low
0x710016-0x7100172Writewbeachvl_coin_eeprom_w
0x710018-0x7100192Read PortP3
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040Button 3Active Low
0x0080Start 3Active Low
0x71001A-0x71001B2Read PortP4
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040Button 3Active Low
0x0080Start 4Active Low
0x780000-0x780FFF4096Device Write, Sharedpalette, palette_device, write, palette
0xFF0000-0xFFFFFF65536RAM
 

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
0x0000-0x0FFF4096pic16c57
0x0000-0x0FFF4096pic16c57
0x0000-0x0FFF4096pic16c57
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288wbv_10.binCRC(50680f0b) (Fluke: 6F9E)
0x0000-0x7FFFF524288wbv_10.binCRC(50680f0b) (Fluke: 6F9E)
0x0000-0x7FFFF524288wbv_10.binCRC(50680f0b) (Fluke: 6F9E)
0x80000-0xFFFFF524288wbv_04.binCRC(df9cbff1) (Fluke: AAB9)
0x80000-0xFFFFF524288wbv_04.binCRC(df9cbff1) (Fluke: AAB9)
0x80000-0xFFFFF524288wbv_04.binCRC(df9cbff1) (Fluke: AAB9)
0x100000-0x17FFFF524288wbv_11.binCRC(e59ad0d1) (Fluke: D0AB)
0x100000-0x17FFFF524288wbv_11.binCRC(e59ad0d1) (Fluke: D0AB)
0x100000-0x17FFFF524288wbv_11.binCRC(e59ad0d1) (Fluke: D0AB)
0x180000-0x1FFFFF524288wbv_05.binCRC(51245c3c) (Fluke: F5DE)
0x180000-0x1FFFFF524288wbv_05.binCRC(51245c3c) (Fluke: F5DE)
0x180000-0x1FFFFF524288wbv_05.binCRC(51245c3c) (Fluke: F5DE)
0x200000-0x27FFFF524288wbv_12.binCRC(36b87d0b) (Fluke: 7F31)
0x200000-0x27FFFF524288wbv_12.binCRC(36b87d0b) (Fluke: 7F31)
0x200000-0x27FFFF524288wbv_12.binCRC(36b87d0b) (Fluke: 7F31)
0x280000-0x2FFFFF524288wbv_06.binCRC(9eb808ef) (Fluke: E996)
0x280000-0x2FFFFF524288wbv_06.binCRC(9eb808ef) (Fluke: E996)
0x280000-0x2FFFFF524288wbv_06.binCRC(9eb808ef) (Fluke: E996)
0x300000-0x37FFFF524288wbv_13.binCRC(7021107b) (Fluke: 1D85)
0x300000-0x37FFFF524288wbv_13.binCRC(7021107b) (Fluke: 1D85)
0x300000-0x37FFFF524288wbv_13.binCRC(7021107b) (Fluke: 1D85)
0x380000-0x3FFFFF524288wbv_07.binCRC(4fff9fe8) (Fluke: 85DD)
0x380000-0x3FFFFF524288wbv_07.binCRC(4fff9fe8) (Fluke: 85DD)
0x380000-0x3FFFFF524288wbv_07.binCRC(4fff9fe8) (Fluke: 85DD)
0x400000-0x47FFFF524288wbv_14.binCRC(0595e675) (Fluke: F9E3)
0x400000-0x47FFFF524288wbv_14.binCRC(0595e675) (Fluke: F9E3)
0x400000-0x47FFFF524288wbv_14.binCRC(0595e675) (Fluke: F9E3)
0x480000-0x4FFFFF524288wbv_08.binCRC(07e4b416) (Fluke: 1A69)
0x480000-0x4FFFFF524288wbv_08.binCRC(07e4b416) (Fluke: 1A69)
0x480000-0x4FFFFF524288wbv_08.binCRC(07e4b416) (Fluke: 1A69)
0x500000-0x57FFFF524288wbv_15.binCRC(4e1a82d2) (Fluke: 1CA8)
0x500000-0x57FFFF524288wbv_15.binCRC(4e1a82d2) (Fluke: 1CA8)
0x500000-0x57FFFF524288wbv_15.binCRC(4e1a82d2) (Fluke: 1CA8)
0x580000-0x59FFFF131072wbv_09.binCRC(894ce354) (Fluke: F801)
0x580000-0x59FFFF131072wbv_09.binCRC(894ce354) (Fluke: F801)
0x580000-0x59FFFF131072wbv_09.binCRC(894ce354) (Fluke: F801)
Memory Area:user2
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFFF1048576wbv_01.binCRC(ac33f25f) (Fluke: 0A8A)
0x0000-0xFFFFF1048576wbv_01.binCRC(ac33f25f) (Fluke: 0A8A)
0x0000-0xFFFFF1048576wbv_01.binCRC(ac33f25f) (Fluke: 0A8A)
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