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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.
Phantom II (Midway, 1979)
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192ROM, Write NOP
0x2000-0x3FFF8192Mirror, RAM, Shared0x4000, , main_ram
0x4000-0x5FFF8192ROM, Write NOP
Memory Area:phantom2_io_map
Address RangeLengthFunctionDescription
0x00001Mirror, Read0x04, mw8080bw_shift_result_rev_r
0x00011Device Writemb14241, mb14241_device, shift_count_w
0x00011Mirror, Read Port0x04, IN0
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Coin 1Active Low
0x0040UnusedActive Low
0x0080UnusedActive Low
0x00021Mirror, Read Port0x04, IN1
0x0001CoinageActive High
0x00012C_1CActive High
0x00001C_1CActive High
0x0006Game_TimeActive High
0x000045 seconds + 20 extended (at 20 points)Active High
0x000260 seconds + 25 extended (at 25 points)Active High
0x000475 seconds + 30 extended (at 30 points)Active High
0x000690 seconds + 35 extended (at 35 points)Active High
0x0008UnusedActive High
0x0000OffActive High
0x0008OnActive High
0x0010UnusedActive High
0x0000OffActive High
0x0010OnActive High
0x0040UnusedActive High
0x0000OffActive High
0x0040OnActive High
0x0080UnusedActive High
0x0000OffActive High
0x0080OnActive High
0x00021Device Writemb14241, mb14241_device, shift_data_w
0x00031Mirror, Device Read0x04, mb14241, mb14241_device, shift_result_r
0x00041Device Writewatchdog, watchdog_timer_device, reset_w
0x00051Writephantom2_audio_1_w
0x00061Writephantom2_audio_2_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
0x0000-0x07FF2048phantom2.hCRC(0e3c2439) (Fluke: 465F)
0x0800-0x0FFF2048phantom2.gCRC(e8df3e52) (Fluke: F716)
0x1000-0x17FF2048phantom2.fCRC(30e83c6d) (Fluke: 3EE6)
0x1800-0x1FFF2048phantom2.eCRC(8c641cac) (Fluke: 103A)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048p2clouds.f2CRC(dcdd2927) (Fluke: 3661)
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