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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.
Us vs. Them (Mylstar, 1984)
Memory Area:gottlieb_map
Address RangeLengthFunctionDescription
0x0000-0x0FFF4096RAM, Sharednvram
0x1000-0x1FFF4096RAM, Regionmaincpu, 0x1000 (/* or ROM */)
0x2000-0x2FFF4096RAM, Regionmaincpu, 0x2000 (/* or ROM */)
0x3000-0x30FF256Mirror, Write Only, Shared0x0700, , spriteram (/* FRSEL */)
0x3800-0x3BFF1024Mirror, RAM Write, Shared0x0400, gottlieb_videoram_w, videoram (/* BRSEL */)
0x4000-0x4FFF4096RAM Write, Sharedgottlieb_charram_w, charram (/* BOJRSEL1 */)
0x5000-0x501F32Mirror, Write, Shared0x07e0, gottlieb_paletteram_w, paletteram (/* COLSEL */)
0x58001Mirror, Read Port0x07f8, DSW
0x0009CoinageActive High
0x00082C_1CActive High
0x00001C_1CActive High
0x0001Free_PlayActive High
0x0009Free_PlayActive High
0x0004DifficultyActive High
0x0000NormalActive High
0x0004HardActive High
0x58001Mirror, Device Write0x07f8, watchdog, watchdog_timer_device, reset_w
0x58011Mirror, Read Port0x07f8, IN1 (/* IP10-17 */)
0x0002Select in Service ModeActive High
0x0004Coin 1Active High
0x0008Coin 2Active High
0x0010UnknownActive High
0x0020TiltActive Low
0x0040Start 1Active High
0x0080Start 2Active High
0x58011Mirror, Write0x07f8, gottlieb_analog_reset_w (/* A1J2 interface */)
0x58021Mirror, Read Port0x07f8, IN2 (/* trackball H */)
0x00ffUnusedActive Low
0x58021Mirror, Write0x07f8, gottlieb_sh_w (/* OP20-27 */)
0x58031Mirror, Read Port0x07f8, IN3 (/* trackball V */)
0x00ffUnusedActive Low
0x58031Mirror, Write0x07f8, general_output_w (/* OP30-37 */)
0x58041Mirror, Read Port0x07f8, IN4 (/* IP40-47 */)
0x0001Joystick UpActive High
0x0002Joystick DownActive High
0x0004Joystick LeftActive High
0x0008Joystick RightActive High
0x0010Button 1Active High
0x0020Button 2Active High
0x0040Button 3Active High
0x0080UnknownActive High
0x6000-0xFFFF40960ROM
 

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:bgtiles
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096usvs.bg0CRC(8a0de09f) (Fluke: 5BF4)
0x1000-0x1FFF4096usvs.bg1CRC(6fb64d3c) (Fluke: 3AC1)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x6000-0x7FFF8192usvs.rm4CRC(0d7a4072) (Fluke: ABA1)
0x8000-0x9FFF8192usvs.rm3CRC(6f32a671) (Fluke: D4D5)
0xA000-0xBFFF8192usvs.rm2CRC(36770716) (Fluke: 5C7E)
0xC000-0xDFFF8192usvs.rm1CRC(697bc989) (Fluke: CFCD)
0xE000-0xFFFF8192usvs.rm0CRC(30cf6bd9) (Fluke: 9427)
Memory Area:r2sound:audiocpu
Address RangeLengthLabel/LocationDescription
0xC000-0xDFFF8192usvsdrom.1CRC(c0b5cab0) (Fluke: DCCA)
Memory Area:r2sound:speechcpu
Address RangeLengthLabel/LocationDescription
0xE000-0xFFFF8192usvsyrom.1CRC(c3d245ca) (Fluke: B59F)
Memory Area:sprites
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384usvs.fg3CRC(98703015) (Fluke: BEB6)
0x4000-0x7FFF16384usvs.fg2CRC(d3990707) (Fluke: A91B)
0x8000-0xBFFF16384usvs.fg1CRC(a2057430) (Fluke: 3324)
0xC000-0xFFFF16384usvs.fg0CRC(7734e53f) (Fluke: F985)
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