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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.
Sky Diver (Atari, 1978)
Memory Area:skydiver_map
Address RangeLengthFunctionDescription
0x0000-0x007F128Mirror, Read/Write0x4300, wram_r, wram_w
0x0080-0x00FF128Mirror, RAM0x4000, (/* RAM B1 */)
0x0400-0x07FF1024Mirror, RAM Write, Shared0x4000, videoram_w, videoram (/* RAMs K1,M1,P1,J1,N1,K/L1,L1,H/J1 */)
0x0800-0x08012Mirror, Write0x47f0, lamp_s_w
0x0802-0x08032Mirror, Write0x47f0, lamp_k_w
0x0804-0x08052Mirror, Write0x47f0, start_lamp_1_w
0x0806-0x08072Mirror, Write0x47f0, start_lamp_2_w
0x0808-0x08092Mirror, Write0x47f0, lamp_y_w
0x080A-0x080B2Mirror, Write0x47f0, lamp_d_w
0x080C-0x080D2Mirror, Write0x47f0, sound_enable_w
0x1002-0x10032Mirror, Write0x47f0, coin_lockout_w
0x1008-0x100B4Mirror, Write0x47f0, whistle_w
0x100C-0x100D2Mirror, Write0x47f0, nmion_w
0x100E-0x100F2Mirror, Write0x47f0, width_w
0x18001Mirror, Read Port0x47e0, IN0
0x18011Mirror, Read Port0x47e0, IN1
0x18021Mirror, Read Port0x47e0, IN2
0x18031Mirror, Read Port0x47e0, IN3
0x18041Mirror, Read Port0x47e0, IN4
0x0040(DActive Low
0x0080(FActive Low
0x18051Mirror, Read Port0x47e0, IN5
0x0040(EActive Low
0x0080(HActive Low
0x18061Mirror, Read Port0x47e0, IN6
0x0080Coin 1Active Low
0x18071Mirror, Read Port0x47e0, IN7
0x0080Coin 2Active Low
0x18081Mirror, Read Port0x47e4, IN8
0x00003Active High
0x00404Active High
0x00805Active High
0x00c06Active High
0x18091Mirror, Read Port0x47e4, IN9
0x00c02C_1CActive High
0x00801C_1CActive High
0x00401C_2CActive High
0x0000Free_PlayActive High
0x180A1Mirror, Read Port0x47e4, IN10
0x0040EasyActive High
0x0000HardActive High
0x0080NoActive High
0x0000YesActive High
0x180B1Mirror, Read Port0x47e4, IN11
0x0000EnglishActive High
0x0040FrenchActive High
0x0080SpanishActive High
0x00c0GermanActive High
0x18101Mirror, Read Port0x47e4, IN12
0x18111Mirror, Read Port0x47e4, IN13
0x2000-0x201F32Mirror, Device Read, Write0x47e0, watchdog, watchdog_timer_device, reset_r, _2000_201F_w
0x2800-0x2FFF2048Mirror, ROM0x4000,
0x3000-0x37FF2048Mirror, ROM0x4000,
0x3800-0x3FFF2048ROM
0x7800-0x7FFF2048ROM
 

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
0x0000-0x03FF102433163-01.h5CRC(5b9bb7c2) (Fluke: 0CEF)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x03FF102433176-01.l5CRC(6b082a01) (Fluke: 0FF6)
0x0400-0x07FF102433177-01.k5CRC(f5541af0) (Fluke: F96A)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x2800-0x2FFF204833167-02.f1CRC(25a5c976) (Fluke: AA25)
0x3000-0x37FF204833164-02.e1CRC(a348ac39) (Fluke: 1014)
0x3800-0x3FFF204833165-02.d1CRC(a1fc5504) (Fluke: E9C1)
0x7800-0x7FFF204833166-02.c1CRC(3d26da2b) (Fluke: 7A19)
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