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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.
Pollux (Dooyong (NTC / Atlus license), 1991)
Memory Area:pollux_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xBFFF16384ROM Bankbank1
0xC000-0xCFFF4096RAM
0xD000-0xDFFF4096RAM, Sharedspriteram
0xE000-0xEFFF4096Read/Writelastday_tx_r, lastday_tx_w
0xF0001Read Port, WriteDSWA, bankswitch_w
0xF0011Read PortDSWB
0xF0021Read PortP1
0xF0031Read PortP2
0xF0041Read PortSYSTEM
0xF0081Writepollux_ctrl_w (/* coin counter, flip screen */)
0xF0101Device Writesoundlatch, generic_latch_8_device, write
0xF018-0xF01F8Device Writebg, dooyong_rom_tilemap_device, ctrl_w
0xF020-0xF0278Device Writefg, dooyong_rom_tilemap_device, ctrl_w
0xF800-0xFFFF2048Read/Writepaletteram_flytiger_r, paletteram_flytiger_w
Memory Area:pollux_sound_map
Address RangeLengthFunctionDescription
0x0000-0xEFFF61440ROM
0xF000-0xF7FF2048RAM
0xF8001Device Readsoundlatch, generic_latch_8_device, read
0xF802-0xF8032Device Read/Writeym1, ym2203_device, read, write
0xF804-0xF8052Device Read/Writeym2, ym2203_device, read, write
 

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
0x0000-0xFFFF65536polluxntc_3.6tCRC(85a9dc98) (Fluke: 2307)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x8000-0xFFFF32768polluxntc_1.3rCRC(7f7135da) (Fluke: FD16)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536polluxntc_2.3gCRC(96d3e3af)
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