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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.
Polaris (Taito do Brasil, 1981)
Memory Area:polaris_io_map
Address RangeLengthFunctionDescription
0x00001Read, Device Writepolaris_port00_r, mb14241, mb14241_device, shift_count_w
0x00011Read PortIN1
0x00021Read Port, WriteIN2, polaris_sh_port_1_w
0x00031Device Read/Writemb14241, mb14241_device, shift_result_r, shift_data_w
0x00041Writepolaris_sh_port_2_w
0x00051Device Writewatchdog, watchdog_timer_device, reset_w
0x00061Writepolaris_sh_port_3_w
Memory Area:schaser_map
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192ROM
0x2000-0x3FFF8192RAM, Sharedmain_ram
0x4000-0x5FFF8192ROM
0xC000-0xDFFF8192Read/Writeschaser_scattered_colorram_r, schaser_scattered_colorram_w
 

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
0x0000-0x07FF20481CRC(17015f52)
0x0800-0x0FFF20482CRC(9a5c8cb2) (Fluke: 5022)
0x1000-0x17FF20483CRC(60118368)
0x1800-0x1FFF20484CRC(65694948) (Fluke: C695)
0x4000-0x47FF20485CRC(6cb21b31)
0x4800-0x4FFF20486CRC(3df77bac) (Fluke: 5B14)
0x5000-0x57FF20487CRC(0d811b92)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x03FF1024ps08.1bCRC(164aa05d),NEC B406 or compatible BPROM (82S137) (Fluke: 24F9)
Memory Area:user1
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256ps07.2cCRC(2953253b),MB7052 or compatible BPROM (82S129) (Fluke: 414F)
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