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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.
Rock Tris (Yun Sung, 0)
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0xBFFF49152ROM
0x00011Writebankswitch_w (// ROM Bank (again?))
0x8000-0xBFFF16384ROM Bankmainbank (// Banked ROM)
0xC000-0xDFFF8192Read/Writevideoram_r, videoram_w (// Video RAM (Banked))
0xE000-0xFFFF8192RAM
Memory Area:port_map
Address RangeLengthFunctionDescription
0x00001Read Port, WriteSYSTEM, videobank_w (// video RAM bank)
0x0001UnknownActive Low
0x0002Start 2Active Low
0x0004UnknownActive Low
0x0008Start 1Active Low
0x0010UnknownActive Low
0x0020Service 1Active Low
0x0040UnknownActive Low
0x0080Coin 1Active Low
0x00011Read Port, WriteP1, bankswitch_w (// ROM Bank + Layers Enable)
0x0001UnknownActive Low
0x0002UnknownActive Low
0x0004Button 2Active Low
0x0008Button 1Active Low
0x0010Joystick RightActive Low
0x0020Joystick LeftActive Low
0x0040Joystick DownActive Low
0x0080Joystick UpActive Low
0x00021Read Port, Device WriteP2, soundlatch, generic_latch_8_device, write (// To Sound CPU)
0x0001UnknownActive Low
0x0002UnknownActive Low
0x0004Button 2Active Low
0x0008Button 1Active Low
0x0010Joystick RightActive Low
0x0020Joystick LeftActive Low
0x0040Joystick DownActive Low
0x0080Joystick UpActive Low
0x00031Read PortDSW1
0x0000EasyActive High
0x0006NormalActive High
0x0004HardActive High
0x0002HardestActive High
0x0008OffActive High
0x0000OnActive High
0x0010OffActive High
0x0000OnActive High
0x00004C_1CActive High
0x00203C_1CActive High
0x00602C_1CActive High
0x00e01C_1CActive High
0x00402C_3CActive High
0x00c01C_2CActive High
0x00a01C_3CActive High
0x00801C_4CActive High
0x00041Read PortDSW2
0x0001OffActive High
0x0000OnActive High
0x0002OffActive High
0x0000OnActive High
0x0004OffActive High
0x0000OnActive High
0x0008OffActive High
0x0000OnActive High
0x0010OffActive High
0x0000OnActive High
0x0020OffActive High
0x0000OnActive High
0x0040OffActive High
0x0000OnActive High
0x0080OffActive High
0x0000OnActive High
0x00061Writeflipscreen_w (// Flip Screen)
0x00071Write NOP(// ? (end of IRQ, random value))
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xBFFF16384ROM Banksoundbank (// Banked ROM)
0xE0001Writesound_bankswitch_w (// ROM Bank)
0xE4001Writeadpcm_w
0xEC00-0xEC012Device Writeymsnd, ym3812_device, write
0xF000-0xF7FF2048RAM
0xF8001Device Readsoundlatch, generic_latch_8_device, read (// From Main CPU)
 

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
0x0000-0x1FFFF131072cpu2.binCRC(3a78a4cf) (Fluke: B929)
Memory Area:bgfx
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288gfx4.binCRC(abb49cac) (Fluke: B149)
0x80000-0xFFFFF524288gfx3.binCRC(70a6ad52) (Fluke: 47BF)
0x100000-0x17FFFF524288gfx2.binCRC(fcc9ec97) (Fluke: 81E0)
0x180000-0x1FFFFF524288gfx1.binCRC(4295034d) (Fluke: 3E65)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072cpu.binCRC(46e3b79c) (Fluke: 7704)
Memory Area:text
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072gfx5.binCRC(058ee379) (Fluke: F255)
0x20000-0x3FFFF131072gfx6.binCRC(593cbd39) (Fluke: 9A34)
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