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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.
Crazzy Clownz (LAI Games, 1999)
Memory Area:lethalj_map
Address RangeLengthFunctionDescription
0x0000-0x3FFFFF4194304RAM
0x4000000-0x400000F16Device Read/Write 8-bitoki1, okim6295_device, read, write, 0x00ff
0x4000010-0x400001F16Device Read/Write 8-bitoki2, okim6295_device, read, write, 0x00ff
0x4100000-0x410000F16Device Read/Write 8-bitoki3, okim6295_device, read, write, 0x00ff
0x4200000-0x420001F32Write NOP(/* clocks bits through here */)
0x4300000-0x430007F128Readlethalj_gun_r
0x4400000-0x440000F16Write NOP(/* clocks bits through here */)
0x4500010-0x450001F16Read PortIN0
0x0001Service 1Active Low
0x0004Coin 1Active Low
0x0008UnusedActive Low
0x0010+1 Ticket Per GameActive High
0x0000FixedActive High
0x0020OnActive High
0x0000OffActive High
0x00803C_1CActive High
0x00402C_1CActive High
0x00001C_1CActive High
0x00c01C_2CActive High
0x00000Active High
0x01002Active High
0x02005Active High
0x03008Active High
0x040010Active High
0x050015Active High
0x060020Active High
0x070030Active High
0x00001Active High
0x08002Active High
0x10003Active High
0x18004Active High
0xe000700Active High
0xc000900Active High
0xa0001200Active High
0x80001500Active High
0x60001800Active High
0x40002100Active High
0x20002400Active High
0x00003000Active High
0x4600000-0x460000F16Read PortIN1
0x0f0fSpecialActive High
0x0010SpecialActive Low
0x0060UnusedActive Low
0x0080Start 1Active Low
0xf000UnusedActive Low
0x4700000-0x470007F128Writelethalj_blitter_w
0xC0000000-0xC00001FF512Device Read/Writemaincpu, tms34010_device, io_register_r, io_register_w
0xC0000240-0xC000025F32Write NOP(/* seems to be a bug in their code, one of many. */)
0xFF800000-0xFFFFFFFF8388608ROM, Regionuser1, 0
 

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:oki1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288cc-s-u20.binCRC(252fc4b5) (Fluke: 40BA)
Memory Area:oki2
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288cc-s-u21.binCRC(6c3da4ed) (Fluke: 3395)
Memory Area:oki3
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288cc-s-u18.binCRC(9cdf87af) (Fluke: FE1E)
Memory Area:user2
Address RangeLengthLabel/LocationDescription
0x0000-0x3EFA16123vc-22.jedCRC(e535b16a) (Fluke: 9194)
0x0000-0x3EF916122vc-24.jedCRC(c054cb13) (Fluke: 5E0B)
0x0000-0x3EFA16123vc-16.jedCRC(e535b16a) (Fluke: 9194)
0x0000-0x3EF916122vc-23.jedCRC(c054cb13) (Fluke: 5E0B)
0x0000-0x3F0216131vc-12.jedCRC(6947ea9e) (Fluke: C6B0)
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