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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.
Astro Battle (bootleg (Sidam), 1979)
Memory Area:astrof_map
Address RangeLengthFunctionDescription
0x0000-0x03FF1024Mirror, RAM0x1c00,
0x2000-0x3FFF8192Read/Write NOP
0x4000-0x5FFF8192RAM Write, Sharedastrof_videoram_w, videoram
0x6000-0x7FFF8192Read/Write NOP
0x8000-0x80023Mirror, Read/Write NOP0x1ff8,
0x80031Mirror, Read NOP, Write Only, Shared0x1ff8, , , astrof_color
0x80041Mirror, Read NOP, Write0x1ff8, , video_control_1_w
0x80051Mirror, Read NOP, Write0x1ff8, , astrof_video_control_2_w
0x80061Mirror, Read NOP, Write0x1ff8, , astrof_audio_1_w
0x80071Mirror, Read NOP, Write0x1ff8, , astrof_audio_2_w
0xA0001Mirror, Read Port, Write NOP0x1ff8, IN,
0x0001Start 1Active High
0x0002Start 2Active High
0x001cSpecialActive High
0x00e0SpecialActive High
0xA0011Mirror, Read Port, Write NOP0x1ff8, DSW,
0x0003LivesActive High
0x00003Active High
0x00014Active High
0x00025Active High
0x00036Active High
0x000cCoinageActive High
0x00082C_1CActive High
0x000c2C_1CActive High
0x00001C_1CActive High
0x00041C_2CActive High
0x0030Bonus_LifeActive High
0x00005000Active High
0x00107000Active High
0x002010000Active High
0x0030NoneActive High
0x0040DifficultyActive High
0x0000EasyActive High
0x0040HardActive High
0xA0021Mirror, Read, Write NOP0x1ff8, irq_clear_r,
0xA003-0xA0075Mirror, Read/Write NOP0x1ff8,
0xC000-0xFFFF16384ROM
 

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
0xD000-0xD3FF102410405-b.binCRC(9ba57987) (Fluke: D45F)
0xD000-0xD3FF102410405-b.binCRC(9ba57987) (Fluke: D45F)
0xD400-0xD7FF102410405-a.binCRC(3fbbeeba) (Fluke: 75C5)
0xD400-0xD7FF102410405-a.binCRC(3fbbeeba) (Fluke: 75C5)
0xD800-0xDBFF102410405-9.binCRC(354cf432) (Fluke: F9C5)
0xD800-0xDBFF102410405-9.binCRC(354cf432) (Fluke: F9C5)
0xDC00-0xDFFF102410405-8.binCRC(4cee0c8b) (Fluke: F6B0)
0xDC00-0xDFFF102410405-8.binCRC(4cee0c8b) (Fluke: F6B0)
0xE000-0xE3FF102410405-4.binCRC(9cb477f3) (Fluke: 7098)
0xE400-0xE7FF102410405-6.binCRC(272de8f1) (Fluke: FAA8)
0xE400-0xE7FF102410405-6.binCRC(272de8f1) (Fluke: FAA8)
0xE800-0xEBFF102410405-5.binCRC(ff25acaa) (Fluke: 429F)
0xEC00-0xEFFF102410405-3.binCRC(6edf202d) (Fluke: 1CBF)
0xEC00-0xEFFF102410405-3.binCRC(6edf202d) (Fluke: 1CBF)
0xF000-0xF3FF102410405-7.binCRC(02a35ad9) (Fluke: 6FF6)
0xF000-0xF3FF102410405-7.binCRC(02a35ad9) (Fluke: 6FF6)
0xF400-0xF7FF102410405-1.binCRC(c68f6657) (Fluke: D3A3)
0xF400-0xF7FF102410405-1.binCRC(c68f6657) (Fluke: D3A3)
0xF800-0xFBFF102410405-2.binCRC(b206deda) (Fluke: 5C48)
0xF800-0xFBFF102410405-2.binCRC(b206deda) (Fluke: 5C48)
0xFC00-0xFFFF102410405-0.binCRC(c836a152) (Fluke: 4EB8)
0xFC00-0xFFFF102410405-0.binCRC(c836a152) (Fluke: 4EB8)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF2568f-clr.binCRC(3bf3ccb0) (Fluke: 2B9C)
0x0000-0x00FF2568f-clr.binCRC(3bf3ccb0) (Fluke: 2B9C)
Memory Area:user1
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF2562h-prot.binCRC(a6bdd18c) (Fluke: 8770)
0x0000-0x00FF2562h-prot.binCRC(a6bdd18c) (Fluke: 8770)
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