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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.
Crystal Castles (Atari, 1983)
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768RAM Write, Sharedccastles_videoram_w, videoram
0x0000-0x00012Writeccastles_bitmode_addr_w
0x00021Read/Writeccastles_bitmode_r, ccastles_bitmode_w
0x8000-0x8FFF4096RAM
0x8E00-0x8FFF512Sharedspriteram
0x9000-0x90FF256Mirror, Read/Write0x0300, nvram_r, nvram_w
0x9400-0x94034Mirror, Read0x01fc, leta_r
0x9600-0x97FF512Read PortIN0
0x0001Coin 2Active Low
0x0002Coin 1Active Low
0x0004Service 1Active Low
0x0008TiltActive Low
0x0020SpecialActive High
0x0040Button 1Active Low
0x0080Button 1Active Low
0x9800-0x980F16Mirror, Device Read/Write0x01f0, pokey1, pokey_device, read, write
0x9A00-0x9A0F16Mirror, Device Read/Write0x01f0, pokey2, pokey_device, read, write
0x9C00-0x9C7F128Writenvram_recall_w
0x9C80-0x9CFF128Writeccastles_hscroll_w
0x9D00-0x9D7F128Writeccastles_vscroll_w
0x9D80-0x9DFF128Writeirq_ack_w
0x9E00-0x9E7F128Device Writewatchdog, watchdog_timer_device, reset_w
0x9E80-0x9E812Mirror, Write0x0078, led_w
0x9E82-0x9E832Mirror, Write0x0078, nvram_store_w
0x9E85-0x9E862Mirror, Write0x0078, ccounter_w
0x9E871Mirror, Write0x0078, bankswitch_w
0x9F00-0x9F078Mirror, Write0x0078, ccastles_video_control_w
0x9F80-0x9FBF64Mirror, Write0x0040, ccastles_paletteram_w
0xA000-0xDFFF16384ROM Bankbank1
0xE000-0xFFFF8192ROM
 

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:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192136022-106.8dCRC(9d1d89fc) (Fluke: E814)
0x0000-0x1FFF8192136022-106.8dCRC(9d1d89fc) (Fluke: E814)
0x0000-0x1FFF8192136022-106.8dCRC(9d1d89fc) (Fluke: E814)
0x0000-0x1FFF8192136022-106.8dCRC(9d1d89fc) (Fluke: E814)
0x0000-0x1FFF8192136022-106.8dCRC(9d1d89fc) (Fluke: E814)
0x0000-0x1FFF8192136022-106.8dCRC(9d1d89fc) (Fluke: E814)
0x0000-0x1FFF8192136022-106.8dCRC(9d1d89fc) (Fluke: E814)
0x0000-0x1FFF8192136022-106.8dCRC(9d1d89fc) (Fluke: E814)
0x2000-0x3FFF8192136022-107.8bCRC(39960b7d) (Fluke: E9FC)
0x2000-0x3FFF8192136022-107.8bCRC(39960b7d) (Fluke: E9FC)
0x2000-0x3FFF8192136022-107.8bCRC(39960b7d) (Fluke: E9FC)
0x2000-0x3FFF8192136022-107.8bCRC(39960b7d) (Fluke: E9FC)
0x2000-0x3FFF8192136022-107.8bCRC(39960b7d) (Fluke: E9FC)
0x2000-0x3FFF8192136022-107.8bCRC(39960b7d) (Fluke: E9FC)
0x2000-0x3FFF8192136022-107.8bCRC(39960b7d) (Fluke: E9FC)
0x2000-0x3FFF8192136022-107.8bCRC(39960b7d) (Fluke: E9FC)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0xA000-0xBFFF8192136022-403.1kCRC(81471ae5) (Fluke: 8491)
0xC000-0xDFFF8192136022-404.1lCRC(820daf29) (Fluke: 80FB)
0xE000-0xFFFF8192136022-405.1nCRC(4befc296) (Fluke: 7039)
0x10000-0x11FFF8192136022-102.1hCRC(f6ccfbd4) (Fluke: 592D)
0x10000-0x11FFF8192136022-102.1hCRC(f6ccfbd4) (Fluke: 592D)
0x10000-0x11FFF8192136022-102.1hCRC(f6ccfbd4) (Fluke: 592D)
0x10000-0x11FFF8192136022-102.1hCRC(f6ccfbd4) (Fluke: 592D)
0x10000-0x11FFF8192136022-102.1hCRC(f6ccfbd4) (Fluke: 592D)
0x10000-0x11FFF8192136022-102.1hCRC(f6ccfbd4) (Fluke: 592D)
0x10000-0x11FFF8192136022-102.1hCRC(f6ccfbd4) (Fluke: 592D)
0x10000-0x11FFF8192136022-102.1hCRC(f6ccfbd4) (Fluke: 592D)
0x12000-0x13FFF8192136022-101.1fCRC(e2e17236) (Fluke: 146C)
0x12000-0x13FFF8192136022-101.1fCRC(e2e17236) (Fluke: 146C)
0x12000-0x13FFF8192136022-101.1fCRC(e2e17236) (Fluke: 146C)
0x12000-0x13FFF8192136022-101.1fCRC(e2e17236) (Fluke: 146C)
0x12000-0x13FFF8192136022-101.1fCRC(e2e17236) (Fluke: 146C)
0x12000-0x13FFF8192136022-101.1fCRC(e2e17236) (Fluke: 146C)
0x12000-0x13FFF8192136022-101.1fCRC(e2e17236) (Fluke: 146C)
0x12000-0x13FFF8192136022-101.1fCRC(e2e17236) (Fluke: 146C)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF25682s129-136022-108.7kCRC(6ed31e3b) (Fluke: EB1D)
0x0000-0x00FF25682s129-136022-108.7kCRC(6ed31e3b) (Fluke: EB1D)
0x0000-0x00FF25682s129-136022-108.7kCRC(6ed31e3b) (Fluke: EB1D)
0x0000-0x00FF25682s129-136022-108.7kCRC(6ed31e3b) (Fluke: EB1D)
0x0000-0x00FF25682s129-136022-108.7kCRC(6ed31e3b) (Fluke: EB1D)
0x0000-0x00FF25682s129-136022-108.7kCRC(6ed31e3b) (Fluke: EB1D)
0x0000-0x00FF25682s129-136022-108.7kCRC(6ed31e3b) (Fluke: EB1D)
0x0000-0x00FF25682s129-136022-108.7kCRC(6ed31e3b) (Fluke: EB1D)
0x0100-0x01FF25682s129-136022-109.6lCRC(b3515f1a) (Fluke: CD1F)
0x0100-0x01FF25682s129-136022-109.6lCRC(b3515f1a) (Fluke: CD1F)
0x0100-0x01FF25682s129-136022-109.6lCRC(b3515f1a) (Fluke: CD1F)
0x0100-0x01FF25682s129-136022-109.6lCRC(b3515f1a) (Fluke: CD1F)
0x0100-0x01FF25682s129-136022-109.6lCRC(b3515f1a) (Fluke: CD1F)
0x0100-0x01FF25682s129-136022-109.6lCRC(b3515f1a) (Fluke: CD1F)
0x0100-0x01FF25682s129-136022-109.6lCRC(b3515f1a) (Fluke: CD1F)
0x0100-0x01FF25682s129-136022-109.6lCRC(b3515f1a) (Fluke: CD1F)
0x0200-0x02FF25682s129-136022-110.11lCRC(068bdc7e) (Fluke: 156A)
0x0200-0x02FF25682s129-136022-110.11lCRC(068bdc7e) (Fluke: 156A)
0x0200-0x02FF25682s129-136022-110.11lCRC(068bdc7e) (Fluke: 156A)
0x0200-0x02FF25682s129-136022-110.11lCRC(068bdc7e) (Fluke: 156A)
0x0200-0x02FF25682s129-136022-110.11lCRC(068bdc7e) (Fluke: 156A)
0x0200-0x02FF25682s129-136022-110.11lCRC(068bdc7e) (Fluke: 156A)
0x0200-0x02FF25682s129-136022-110.11lCRC(068bdc7e) (Fluke: 156A)
0x0200-0x02FF25682s129-136022-110.11lCRC(068bdc7e) (Fluke: 156A)
0x0300-0x03FF25682s129-136022-111.10kCRC(c29c18d9) (Fluke: 8A47)
0x0300-0x03FF25682s129-136022-111.10kCRC(c29c18d9) (Fluke: 8A47)
0x0300-0x03FF25682s129-136022-111.10kCRC(c29c18d9) (Fluke: 8A47)
0x0300-0x03FF25682s129-136022-111.10kCRC(c29c18d9) (Fluke: 8A47)
0x0300-0x03FF25682s129-136022-111.10kCRC(c29c18d9) (Fluke: 8A47)
0x0300-0x03FF25682s129-136022-111.10kCRC(c29c18d9) (Fluke: 8A47)
0x0300-0x03FF25682s129-136022-111.10kCRC(c29c18d9) (Fluke: 8A47)
0x0300-0x03FF25682s129-136022-111.10kCRC(c29c18d9) (Fluke: 8A47)
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