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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.
Rampart (Atari Games, 1990)
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0xFFFFF1048576ROM
0x140000-0x147FFF32768Mirror, ROM0x438000, (/* slapstic goes here */)
0x200000-0x21FFFF131072RAM, Sharedbitmap
0x220000-0x3BFFFF1703936Write NOP(/* the code blasts right through this when initializing */)
0x3C0000-0x3C07FF2048Mirror, Device Read/Write 8-bit, Shared0x019800, palette, palette_device, read, write, 0xff00, palette
0x3E0000-0x3E07FF2048Mirror, RAM, Shared0x010000, , mob
0x3E0800-0x3E3F3F14144Mirror, RAM0x010000,
0x3E3F40-0x3E3F7F64Mirror, RAM, Shared0x010000, , mob:slip
0x3E3F80-0x3EFFFF49280Mirror, RAM0x010000,
0x460000-0x4600012Mirror, Device Read/Write 8-bit0x019ffe, oki, okim6295_device, read, write, 0xff00
0x480000-0x4800034Mirror, Device Write 8-bit0x019ffc, ymsnd, ym2413_device, write, 0xff00
0x500000-0x500FFF4096Mirror, Device Read/Write 8-bit0x019000, eeprom, atari_eeprom_device, read, write, 0x00ff
0x5A6000-0x5A60012Mirror, Device Write0x019ffe, eeprom, atari_eeprom_device, unlock_write
0x640000-0x6400012Mirror, Read Port0x019ffc, IN0
0x0001Button 3Active Low
0x0002Button 2Active Low
0x0004UnusedActive Low
0x0008UnusedActive Low
0x00f0UnusedActive Low
0x0100Button 1Active Low
0x0200Button 2Active Low
0x0400Button 1Active Low
0x0800CustomActive High
0xf000UnusedActive Low
0x640000-0x6400012Mirror, Write0x019ffe, latch_w
0x640002-0x6400032Mirror, Read Port0x019ffc, IN1
0x0001Service 1Active Low
0x0002Coin 2Active Low
0x0004Coin 1Active Low
0x00f8UnusedActive Low
0x0100Button 1Active Low
0x0200Button 2Active Low
0x0400Button 4Active Low
0xf000UnusedActive Low
0x6C0000-0x6C00012Mirror, Read Port0x019ff8, TRACK0
0x00ffTrackball YActive High
0xff00Trackball YActive High
0x6C0002-0x6C00032Mirror, Read Port0x019ff8, TRACK1
0x00ffTrackball XActive High
0xff00Trackball XActive High
0x6C0004-0x6C00052Mirror, Read Port0x019ff8, TRACK2
0x00ffTrackball YActive High
0xff00UnusedActive Low
0x6C0006-0x6C00072Mirror, Read Port0x019ff8, TRACK3
0x00ffTrackball XActive High
0xff00UnusedActive Low
0x726000-0x7260012Mirror, Device Write0x019ffe, watchdog, watchdog_timer_device, reset16_w
0x7E6000-0x7E60012Mirror, Write0x019ffe, scanline_int_ack_w
 

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:eeprom:eeprom
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048rampart-eeprom.binCRC(0be57615)
0x0000-0x07FF2048rampart-eeprom.binCRC(0be57615)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072136082-1009.2nCRC(23b95f59) (Fluke: D598)
Memory Area:oki
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072136082-1007.2dCRC(c96a0fc3) (Fluke: B61A)
0x0000-0x1FFFF131072136082-1007.2dCRC(c96a0fc3) (Fluke: B61A)
0x0000-0x1FFFF131072136082-1007.2dCRC(c96a0fc3) (Fluke: B61A)
0x20000-0x3FFFF131072136082-1008.1dCRC(518218d9) (Fluke: 1CE1)
0x20000-0x3FFFF131072136082-1008.1dCRC(518218d9) (Fluke: 1CE1)
0x20000-0x3FFFF131072136082-1008.1dCRC(518218d9) (Fluke: 1CE1)
Memory Area:plds
Address RangeLengthLabel/LocationDescription
0x0000-0x0116279gal16v8-136082-1000.1jCRC(18f82b38) (Fluke: D6C6)
0x0000-0x0116279gal16v8-136082-1000.1jCRC(18f82b38) (Fluke: D6C6)
0x0000-0x0116279gal16v8-136082-1000.1jCRC(18f82b38) (Fluke: D6C6)
0x0200-0x0316279gal16v8-136082-1001.4lCRC(74d75d68) (Fluke: 0544)
0x0200-0x0316279gal16v8-136082-1001.4lCRC(74d75d68) (Fluke: 0544)
0x0200-0x0316279gal16v8-136082-1001.4lCRC(74d75d68) (Fluke: 0544)
0x0400-0x0516279gal16v8-136082-1002.7kCRC(f593401f) (Fluke: FBE9)
0x0400-0x0516279gal16v8-136082-1002.7kCRC(f593401f) (Fluke: FBE9)
0x0400-0x0516279gal16v8-136082-1002.7kCRC(f593401f) (Fluke: FBE9)
0x0600-0x0756343gal20v8-136082-1003.8jCRC(67bb9705) (Fluke: AADC)
0x0600-0x0756343gal20v8-136082-1003.8jCRC(67bb9705) (Fluke: AADC)
0x0600-0x0756343gal20v8-136082-1003.8jCRC(67bb9705) (Fluke: AADC)
0x0800-0x0956343gal20v8-136082-1004.8mCRC(0001ed7d) (Fluke: D6AD)
0x0800-0x0956343gal20v8-136082-1004.8mCRC(0001ed7d) (Fluke: D6AD)
0x0800-0x0956343gal20v8-136082-1004.8mCRC(0001ed7d) (Fluke: D6AD)
0x0A00-0x0B16279gal16v8-136082-1006.12cCRC(1f3b735d) (Fluke: 3132)
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