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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.
Gun.Smoke (Capcom, 1985)
Memory Area:gunsmoke_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xBFFF16384ROM Bankbank1
0xC0001Read PortSYSTEM
0x0001Start 1Active Low
0x0002Start 2Active Low
0x0004UnusedActive Low
0x0008SpecialActive Low
0x0010Service 1Active Low
0x0020UnusedActive Low
0x0040Coin 2Active Low
0x0080Coin 1Active Low
0xC0011Read PortP1
0x0001Joystick RightActive Low
0x0002Joystick LeftActive Low
0x0004Joystick DownActive Low
0x0008Joystick UpActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040Button 3Active Low
0x0080UnusedActive Low
0xC0021Read PortP2
0x0001Joystick RightActive Low
0x0002Joystick LeftActive Low
0x0004Joystick DownActive Low
0x0008Joystick UpActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040Button 3Active Low
0x0080UnusedActive Low
0xC0031Read PortDSW1
0x000130K 80K 80K+Active High
0x000330K 100K 100K+Active High
0x000030K 100K 150K+Active High
0x000230K 100KActive High
0x0000OffActive High
0x0004OnActive High
0x0000UprightActive High
0x0008CocktailActive High
0x0020EasyActive High
0x0030NormalActive High
0x0010DifficultActive High
0x0000Very_DifficultActive High
0x0040OffActive High
0x0000OnActive High
0xC0041Read PortDSW2
0x00004C_1CActive High
0x00013C_1CActive High
0x00022C_1CActive High
0x00071C_1CActive High
0x00061C_2CActive High
0x00051C_3CActive High
0x00041C_4CActive High
0x00031C_6CActive High
0x00004C_1CActive High
0x00083C_1CActive High
0x00102C_1CActive High
0x00381C_1CActive High
0x00301C_2CActive High
0x00281C_3CActive High
0x00201C_4CActive High
0x00181C_6CActive High
0x0000NoActive High
0x0040YesActive High
0x0000OffActive High
0x0080OnActive High
0xC4C9-0xC4CB3Readgunsmoke_protection_r
0xC8001Device Writesoundlatch, generic_latch_8_device, write
0xC8041Writegunsmoke_c804_w (// ROM bank switch, screen flip)
0xC8061Device Writewatchdog, watchdog_timer_device, reset_w
0xD000-0xD3FF1024RAM Write, Sharedgunsmoke_videoram_w, videoram
0xD400-0xD7FF1024RAM Write, Sharedgunsmoke_colorram_w, colorram
0xD800-0xD8012RAM, Sharedscrollx
0xD8021RAM, Sharedscrolly
0xD8061Writegunsmoke_d806_w (// sprites and bg enable)
0xE000-0xEFFF4096RAM
0xF000-0xFFFF4096RAM, Sharedspriteram
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0xC000-0xC7FF2048RAM
0xC8001Device Readsoundlatch, generic_latch_8_device, read
0xE000-0xE0012Device Writeym1, ym2203_device, write
0xE002-0xE0032Device Writeym2, ym2203_device, write
 

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:audiocpu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768gs02.14hCRC(cd7a2c38) (Fluke: 6268)
0x0000-0x7FFF32768gs02.14hCRC(cd7a2c38) (Fluke: 6268)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384gs01.11fCRC(b61ece9b),Characters (Fluke: EDEB)
0x0000-0x3FFF16384gs01.11fCRC(b61ece9b),Characters (Fluke: EDEB)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768gs13.06cCRC(f6769fc5),32x32 tiles planes 2-3 (Fluke: 80DB)
0x0000-0x7FFF32768gs13.06cCRC(f6769fc5),32x32 tiles planes 2-3 (Fluke: 80DB)
0x8000-0xFFFF32768gs12.05cCRC(d997b78c) (Fluke: 2451)
0x8000-0xFFFF32768gs12.05cCRC(d997b78c) (Fluke: 2451)
0x10000-0x17FFF32768gs11.04cCRC(125ba58e) (Fluke: 7F80)
0x10000-0x17FFF32768gs11.04cCRC(125ba58e) (Fluke: 7F80)
0x18000-0x1FFFF32768gs10.02cCRC(f469c13c) (Fluke: AE7B)
0x18000-0x1FFFF32768gs10.02cCRC(f469c13c) (Fluke: AE7B)
0x20000-0x27FFF32768gs09.06aCRC(539f182d),32x32 tiles planes 0-1 (Fluke: 4600)
0x20000-0x27FFF32768gs09.06aCRC(539f182d),32x32 tiles planes 0-1 (Fluke: 4600)
0x28000-0x2FFFF32768gs08.05aCRC(e87e526d) (Fluke: 154B)
0x28000-0x2FFFF32768gs08.05aCRC(e87e526d) (Fluke: 154B)
0x30000-0x37FFF32768gs07.04aCRC(4382c0d2) (Fluke: 5BCF)
0x30000-0x37FFF32768gs07.04aCRC(4382c0d2) (Fluke: 5BCF)
0x38000-0x3FFFF32768gs06.02aCRC(4cafe7a6) (Fluke: 36AE)
0x38000-0x3FFFF32768gs06.02aCRC(4cafe7a6) (Fluke: 36AE)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768gs22.06nCRC(dc9c508c),Sprites planes 2-3 (Fluke: 1FFD)
0x0000-0x7FFF32768gs22.06nCRC(dc9c508c),Sprites planes 2-3 (Fluke: 1FFD)
0x8000-0xFFFF32768gs21.04nCRC(68883749),Sprites planes 2-3 (Fluke: 4CCB)
0x8000-0xFFFF32768gs21.04nCRC(68883749),Sprites planes 2-3 (Fluke: 4CCB)
0x10000-0x17FFF32768gs20.03nCRC(0be932ed),Sprites planes 2-3 (Fluke: 9A44)
0x10000-0x17FFF32768gs20.03nCRC(0be932ed),Sprites planes 2-3 (Fluke: 9A44)
0x18000-0x1FFFF32768gs19.01nCRC(63072f93),Sprites planes 2-3 (Fluke: BE28)
0x18000-0x1FFFF32768gs19.01nCRC(63072f93),Sprites planes 2-3 (Fluke: BE28)
0x20000-0x27FFF32768gs18.06lCRC(f69a3c7c),Sprites planes 0-1 (Fluke: BD06)
0x20000-0x27FFF32768gs18.06lCRC(f69a3c7c),Sprites planes 0-1 (Fluke: BD06)
0x28000-0x2FFFF32768gs17.04lCRC(4e98562a),Sprites planes 0-1 (Fluke: AFA0)
0x28000-0x2FFFF32768gs17.04lCRC(4e98562a),Sprites planes 0-1 (Fluke: AFA0)
0x30000-0x37FFF32768gs16.03lCRC(0d99c3b3),Sprites planes 0-1 (Fluke: 9DB6)
0x30000-0x37FFF32768gs16.03lCRC(0d99c3b3),Sprites planes 0-1 (Fluke: 9DB6)
0x38000-0x3FFFF32768gs15.01lCRC(7f14270e),Sprites planes 0-1 (Fluke: 6BF8)
0x38000-0x3FFFF32768gs15.01lCRC(7f14270e),Sprites planes 0-1 (Fluke: 6BF8)
Memory Area:gfx4
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768gs14.11cCRC(0af4f7eb) (Fluke: F1F3)
0x0000-0x7FFF32768gs14.11cCRC(0af4f7eb) (Fluke: F1F3)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768gs03.09nCRC(40a06cef),Code 0000-7fff // gse_03 ? (Fluke: DC99)
0x10000-0x17FFF32768gs04.10nCRC(8d4b423f),Paged code (Fluke: 822E)
0x10000-0x17FFF32768gs04.10nCRC(8d4b423f),Paged code (Fluke: 822E)
0x18000-0x1FFFF32768gs05.12nCRC(2b5667fb),Paged code (Fluke: C251)
0x18000-0x1FFFF32768gs05.12nCRC(2b5667fb),Paged code (Fluke: C251)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256g-01.03bCRC(02f55589),red component (Fluke: 59EC)
0x0000-0x00FF256g-01.03bCRC(02f55589),red component (Fluke: 59EC)
0x0100-0x01FF256g-02.04bCRC(e1e36dd9),green component (Fluke: 0F21)
0x0100-0x01FF256g-02.04bCRC(e1e36dd9),green component (Fluke: 0F21)
0x0200-0x02FF256g-03.05bCRC(989399c0),blue component (Fluke: 3E39)
0x0200-0x02FF256g-03.05bCRC(989399c0),blue component (Fluke: 3E39)
0x0300-0x03FF256g-04.09dCRC(906612b5),char lookup table (Fluke: FE73)
0x0300-0x03FF256g-04.09dCRC(906612b5),char lookup table (Fluke: FE73)
0x0400-0x04FF256g-06.14aCRC(4a9da18b),tile lookup table (Fluke: 0D89)
0x0400-0x04FF256g-06.14aCRC(4a9da18b),tile lookup table (Fluke: 0D89)
0x0500-0x05FF256g-07.15aCRC(cb9394fc),tile palette bank (Fluke: 6724)
0x0500-0x05FF256g-07.15aCRC(cb9394fc),tile palette bank (Fluke: 6724)
0x0600-0x06FF256g-09.09fCRC(3cee181e),sprite lookup table (Fluke: 33DC)
0x0600-0x06FF256g-09.09fCRC(3cee181e),sprite lookup table (Fluke: 33DC)
0x0700-0x07FF256g-08.08fCRC(ef91cdd2),sprite palette bank (Fluke: AB6B)
0x0700-0x07FF256g-08.08fCRC(ef91cdd2),sprite palette bank (Fluke: AB6B)
0x0800-0x08FF256g-10.02jCRC(0eaf5158),video timing (not used) (Fluke: E9D9)
0x0800-0x08FF256g-10.02jCRC(0eaf5158),video timing (not used) (Fluke: E9D9)
0x0900-0x09FF256g-05.01fCRC(25c90c2a),priority? (not used) (Fluke: 7E6B)
0x0900-0x09FF256g-05.01fCRC(25c90c2a),priority? (not used) (Fluke: 7E6B)
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