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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.
Arcade Classics (Atari Games, 1992)
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0xFFFFF1048576ROM
0x200000-0x21FFFF131072RAM, Sharedbitmap
0x3C0000-0x3C07FF2048Device Read/Write 8-bit, Sharedpalette, palette_device, read, write, 0xff00, palette
0x3E0000-0x3E07FF2048RAM, Sharedmob
0x3E0800-0x3EFFBF63424RAM
0x3EFFC0-0x3EFFFF64RAM, Sharedmob:slip
0x640000-0x6400012Read PortPLAYER1
0x00ffUnusedActive Low
0x0100Start 1Active Low
0x0200Button 3Active Low
0x0400Button 2Active Low
0x0800Button 1Active Low
0xf000UnusedActive Low
0x640002-0x6400032Read PortPLAYER2
0x00ffUnusedActive Low
0x0100Start 2Active Low
0x0200Button 3Active Low
0x0400Button 2Active Low
0x0800Button 1Active Low
0xf000UnusedActive Low
0x640010-0x6400112Read PortSTATUS
0x0001UnusedActive Low
0x0002UnusedActive Low
0x0004UnusedActive Low
0x0008UnusedActive Low
0x0010UnusedActive Low
0x0020UnusedActive Low
0x0080CustomActive High
0xff00UnusedActive Low
0x640012-0x6400132Read PortCOIN
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x000cUnusedActive Low
0x0010Service 1Active Low
0x0020Service 2Active Low
0xffc0UnusedActive Low
0x640020-0x6400212Read PortTRACKX2
0x00ffTrackball XActive High
0xff00UnusedActive Low
0x640022-0x6400232Read PortTRACKY2
0x00ffTrackball YActive High
0xff00UnusedActive Low
0x640024-0x6400252Read PortTRACKX1
0x00ffTrackball XActive High
0xff00UnusedActive Low
0x640026-0x6400272Read PortTRACKY1
0x00ffTrackball YActive High
0xff00UnusedActive Low
0x640040-0x64004F16Writelatch_w
0x640060-0x64006F16Device Writeeeprom, atari_eeprom_device, unlock_write
0x641000-0x641FFF4096Device Read/Write 8-biteeprom, atari_eeprom_device, read, write, 0x00ff
0x642000-0x6420012Device Read/Write 8-bitoki, okim6295_device, read, write, 0xff00
0x646000-0x646FFF4096Writescanline_int_ack_w
0x647000-0x647FFF4096Device Writewatchdog, watchdog_timer_device, reset16_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:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288atcl_mobCRC(0e9b3930) (Fluke: 6434)
Memory Area:oki
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288adpcmCRC(03ca7f03) (Fluke: E358)
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