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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.
HeliFire (Nintendo, 1980)
Memory Area:helifire_main_cpu_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0x4000-0x7FFF16384RAM, Sharedvideoram
0xC000-0xDFFF8192RAM, Sharedcolorram
Memory Area:main_io_map
Address RangeLengthFunctionDescription
0x00001Read PortIN0
0x0001Joystick RightActive High
0x0002Joystick LeftActive High
0x0004Joystick UpActive High
0x0008Joystick DownActive High
0x0010Button 1Active High
0x0020UnusedActive High
0x0040UnusedActive High
0x0080UnusedActive High
0x00011Read PortIN1
0x0001Joystick RightActive High
0x0002Joystick LeftActive High
0x0004Joystick UpActive High
0x0008Joystick DownActive High
0x0010Button 1Active High
0x0020UnusedActive High
0x0040UnusedActive High
0x0080UnusedActive High
0x00021Read PortIN2
0x0001UnusedActive High
0x0002UnusedActive High
0x0004Start 1Active High
0x0008Start 2Active High
0x0010UnusedActive High
0x0020UnusedActive High
0x0040UnusedActive High
0x0080Coin 1Active High
0x00021Writen8080_shift_bits_w
0x00031Readn8080_shift_r
0x00031Writen8080_shift_data_w
0x00041Writen8080_sound_1_w
0x00041Read PortIN3
0x00003Active High
0x00014Active High
0x00025Active High
0x00036Active High
0x00005000Active High
0x00046000Active High
0x00088000Active High
0x000c10000Active High
0x00102C_1CActive High
0x00001C_1CActive High
0x0080UprightActive High
0x0000CocktailActive High
0x00051Writen8080_sound_2_w
0x00061Writen8080_video_control_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:audiocpu
Address RangeLengthLabel/LocationDescription
0x0000-0x03FF1024tub-e_ic5-aCRC(9d77a31f) (Fluke: 8)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x03FF1024tub_f1_bCRC(032f89ca) (Fluke: 20D9)
0x0400-0x07FF1024tub_f2_bCRC(2774e70f) (Fluke: 7A4C)
0x0800-0x0BFF1024tub_g1_bCRC(b5ad6e8a) (Fluke: 2778)
0x0C00-0x0FFF1024tub_g2_bCRC(5e015bf4) (Fluke: 68A0)
0x1000-0x13FF1024tub_h1_bCRC(23bb4e5a) (Fluke: B877)
0x1400-0x17FF1024tub_h2_bCRC(358227c6) (Fluke: 5E32)
0x1800-0x1BFF1024tub_i1_bCRC(0c679f44) (Fluke: AFD9)
0x1C00-0x1FFF1024tub_i2_bCRC(d8b7a398) (Fluke: E845)
0x2000-0x23FF1024tub_j1_bCRC(98ef24db) (Fluke: F57B)
0x2400-0x27FF1024tub_j2_bCRC(5e2b5877) (Fluke: 87A9)
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