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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.
Wild Arrow (Meyco Games, Inc., 1982)
Memory Area:meyc8080_map
Address RangeLengthFunctionDescription
0x0000-0x37FF14336ROM
0x38001Read PortIN0
0x0001CustomActive High
0x0002Coin 1Active Low
0x0000ColorActive High
0x0004B/WActive High
0x0008UnknownActive Low
0x0010UnknownActive Low
0x0020UnknownActive Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0x4000-0x5FFF8192RAM, Sharedvram0
0x6000-0x7FFF8192RAM, Sharedvram1
0x8000-0x9FFF8192RAM, Sharedvram2
0xCD00-0xCDFF256RAM, Sharednvram
0xF0001Read Port, WriteBSW, meyc8080_dac_1_w
0x0000OffActive High
0x0001OnActive High
0x0000OffActive High
0x0002OnActive High
0x0000OffActive High
0x0004OnActive High
0x0000OffActive High
0x0008OnActive High
0x0010CoinageActive High
0x00001C_1CActive High
0x00101C_5CActive High
0x0000OffActive High
0x0020OnActive High
0x0000OffActive High
0x0040OnActive High
0xF0041Read Port, WriteIN1, lights_1_w
0x0001Slot Stop 3Active Low
0x0002Slot Stop 2Active Low
0x0004Slot Stop 1Active Low
0x0008Start 1Active Low
0x0010Gamble BetActive Low
0x0020Meter ResetActive Low
0x0040Meter ReadActive Low
0x0080OffActive High
0x0000OnActive High
0xF0061Read Port, WriteIN2, lights_2_w
0x0001UnknownActive Low
0x0002UnknownActive Low
0x0004UnknownActive Low
0x0008UnknownActive Low
0x0010UnknownActive Low
0x0020UnknownActive Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0xF0081Writecounters_w
0xF00F1Writemeyc8080_dac_2_w
0xF0F01Writemeyc8080_dac_3_w
0xF0FF1Writemeyc8080_dac_4_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
0x0000-0x07FF2048a1-v48.8kCRC(05dd8056) (Fluke: EB25)
0x0800-0x0FFF2048a2-v48.7kCRC(37df3acf) (Fluke: 7173)
0x1000-0x17FF2048a3-v48.6kCRC(1295cee2) (Fluke: F2A0)
0x1800-0x1FFF2048a4-v48.5kCRC(5562614e) (Fluke: 81E6)
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