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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.
Sea Wolf (Dave Nutting Associates / Midway, 1976)
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192ROM, Write NOP
0x2000-0x3FFF8192Mirror, RAM, Shared0x4000, , main_ram
0x4000-0x5FFF8192ROM, Write NOP
Memory Area:seawolf_io_map
Address RangeLengthFunctionDescription
0x00001Mirror, Read0x04, mw8080bw_shift_result_rev_r
0x00011Writeseawolf_explosion_lamp_w
0x00011Mirror, Read Port0x04, IN0
0x001fPeriscope axisActive High
0x0020Button 1Active High
0x00c0Game_TimeActive High
0x000060 seconds + 20 extendedActive High
0x004070 seconds + 20 extendedActive High
0x008080 seconds + 20 extendedActive High
0x00c090 seconds + 20 extendedActive High
0x000060 secondsActive High
0x004070 secondsActive High
0x008080 secondsActive High
0x00c090 secondsActive High
0x00021Writeseawolf_periscope_lamp_w
0x00021Mirror, Read Port0x04, IN1
0x0001Coin 1Active High
0x0002Start 1Active High
0x000cCoinageActive High
0x00042C_1CActive High
0x00001C_1CActive High
0x000c2C_3CActive High
0x00081C_2CActive High
0x0010SpecialActive High
0x0000NoneActive High
0x00202000Active High
0x00403000Active High
0x00604000Active High
0x00805000Active High
0x00a06000Active High
0x00c07000Active High
0x00e0Test ModeActive High
0x00031Device Writemb14241, mb14241_device, shift_data_w
0x00031Mirror, Device Read0x04, mb14241, mb14241_device, shift_result_r
0x00041Device Writemb14241, mb14241_device, shift_count_w
0x00051Writeseawolf_audio_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:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x03FF1024sw0041.hCRC(8f597323) (Fluke: 4E62)
0x0400-0x07FF1024sw0042.gCRC(db980974) (Fluke: E681)
0x0800-0x0BFF1024sw0043.fCRC(e6ffa008) (Fluke: C535)
0x0C00-0x0FFF1024sw0044.eCRC(c3557d6a) (Fluke: 01F7)
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