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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.
Middle Earth (Atari, 1978)
Memory Area:atari_s1_map
Address RangeLengthFunctionDescription
0x0000-0x00FF256RAM, Sharedram
0x1080-0x10834Read/Writem1080_r,m1080_w
0x1084-0x10874Read/Writem1084_r,m1084_w
0x1088-0x108B4Read/Writem1088_r,m1088_w
0x108C-0x108F4Read/Writem108c_r,m108c_w
0x2000-0x204F80Mirror, Read, Write NOP0x0F80, switch_r, (// aavenger ROL 200B causes a spurious write)
0x3000-0x3FFF4096Writeaudioen_w (// audio enable)
0x4000-0x4FFF4096Device Writewatchdog, watchdog_timer_device, reset_w
0x5080-0x508F16Writemeter_w (// time2000 only)
0x6000-0x6FFF4096Writeaudiores_w (// audio reset)
0x7000-0x7FFF4096ROM
Memory Area:midearth_map
Address RangeLengthFunctionDescription
0x0000-0x01FF512RAM, Sharedram
0x1000-0x11FF512Writemidearth_w
0x2000-0x204F80Mirror, Read0x0F80, switch_r
0x3000-0x3FFF4096Writeaudioen_w (// audio enable)
0x4000-0x4FFF4096Device Writewatchdog, watchdog_timer_device, reset_w
0x6000-0x6FFF4096Writeaudiores_w (// audio reset)
0x7000-0x7FFF4096ROM, Write NOP(// writes to FFFF due to poor coding at 7FF5)
 

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
0x7000-0x77FF2048609.binCRC(589df745)
0x7800-0x7FFF2048608.binCRC(28b92faf)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x01FF51282s130.binCRC(da1f77b4)
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