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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.
Food Fight (General Computer Corporation (Atari license), 1982)
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0xFFFF65536Mirror, ROM0x3e0000,
0x14000-0x14FFF4096Mirror, RAM0x3e3000,
0x18000-0x18FFF4096Mirror, RAM0x3e3000,
0x1C000-0x1C0FF256Mirror, RAM, Shared0x3e3f00, , spriteram
0x800000-0x8007FF2048Mirror, RAM Device Write, Shared0x03f800, playfield, tilemap_device, write, playfield
0x900000-0x9001FF512Mirror, Device Read/Write 8-bit0x03fe00, nvram, x2212_device, read, write, 0x00ff
0x940000-0x9400078Mirror, Read0x023ff8, analog_r
0x944000-0x9440078Mirror, Write0x023ff8, analog_w
0x948000-0x9480012Mirror, Read Port, Write 8-bit0x023ffe, SYSTEM, digital_w, 0x00ff
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0004Start 1Active Low
0x0008Start 2Active Low
0x0010Service 1Active Low
0x0020Button 1Active Low
0x0040Button 1Active Low
0x950000-0x9501FF512Mirror, Write, Shared0x023e00, foodf_paletteram_w, paletteram
0x954000-0x9540012Mirror, Write0x023ffe, nvram_recall_w
0x958000-0x9580012Mirror, Device Read/Write0x023ffe, watchdog, watchdog_timer_device, reset16_r, reset16_w
0xA40000-0xA4001F32Mirror, Device Read/Write 8-bit0x03ffe0, pokey2, pokey_device, read, write, 0x00ff
0xA80000-0xA8001F32Mirror, Device Read/Write 8-bit0x03ffe0, pokey1, pokey_device, read, write, 0x00ff
0xAC0000-0xAC001F32Mirror, Device Read/Write 8-bit0x03ffe0, pokey3, pokey_device, read, write, 0x00ff
 

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
0x0000-0x1FFF8192136020-109.6lmCRC(c13c90eb) (Fluke: D371)
0x0000-0x1FFF8192136020-109.6lmCRC(c13c90eb) (Fluke: D371)
0x0000-0x1FFF8192136020-109.6lmCRC(c13c90eb) (Fluke: D371)
0x0000-0x1FFF8192136020-109.6lmCRC(c13c90eb) (Fluke: D371)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192136020-110.4eCRC(8870e3d6),Actual PCB locations! WARNING: Original Atari manuals (Fluke: 9E0F)
0x0000-0x1FFF8192136020-110.4eCRC(8870e3d6),Actual PCB locations! WARNING: Original Atari manuals (Fluke: 9E0F)
0x0000-0x1FFF8192136020-110.4eCRC(8870e3d6),Actual PCB locations! WARNING: Original Atari manuals (Fluke: 9E0F)
0x0000-0x1FFF8192136020-110.4eCRC(8870e3d6),Actual PCB locations! WARNING: Original Atari manuals (Fluke: 9E0F)
0x2000-0x3FFF8192136020-111.4dCRC(84372edf),incorrectly have these two listed in reverse locations. (Fluke: CA73)
0x2000-0x3FFF8192136020-111.4dCRC(84372edf),incorrectly have these two listed in reverse locations. (Fluke: CA73)
0x2000-0x3FFF8192136020-111.4dCRC(84372edf),incorrectly have these two listed in reverse locations. (Fluke: CA73)
0x2000-0x3FFF8192136020-111.4dCRC(84372edf),incorrectly have these two listed in reverse locations. (Fluke: CA73)
Memory Area:nvram
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256foodf.nvCRC(a4186b13)
0x0000-0x00FF256foodf.nvCRC(a4186b13)
0x0000-0x00FF256foodf.nvCRC(a4186b13)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256136020-112.2pCRC(0aa962d6) (Fluke: 4A59)
0x0000-0x00FF256136020-112.2pCRC(0aa962d6) (Fluke: 4A59)
0x0000-0x00FF256136020-112.2pCRC(0aa962d6) (Fluke: 4A59)
0x0000-0x00FF256136020-112.2pCRC(0aa962d6) (Fluke: 4A59)
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