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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.
Drift Out (Visco, 1991)
Memory Area:driftout_map
Address RangeLengthFunctionDescription
0x0000-0xFFFFF1048576ROM
0x200000-0x2000012Device Write 8-bittc0140syt, tc0140syt_device, master_port_w, 0xff00
0x200002-0x2000032Device Read/Write 8-bittc0140syt, tc0140syt_device, master_comm_r, master_comm_w, 0xff00
0x300000-0x30FFFF65536RAM
0x400000-0x401FFF8192Device Read/Writetc0430grw, tc0280grd_device, tc0430grw_word_r, tc0430grw_word_w (/* ROZ tilemap */)
0x402000-0x40200F16Device Writetc0430grw, tc0280grd_device, tc0430grw_ctrl_word_w
0x700000-0x701FFF8192RAM Device Write, Sharedpalette, palette_device, write, palette
0x800000-0x80FFFF65536Device Read/Writetc0100scn, tc0100scn_device, word_r, word_w (/* tilemaps */)
0x820000-0x82000F16Device Read/Writetc0100scn, tc0100scn_device, ctrl_word_r, ctrl_word_w
0x900000-0x90FFFF65536RAM, Sharedspriteram
0xA00000-0xA0001F32Device Write 8-bittc0360pri, tc0360pri_device, write, 0xff00
0xB00000-0xB0000F16Device Read/Writetc0510nio, tc0510nio_device, halfword_r, halfword_w
0xB00018-0xB000192Read PortPADDLE1
0x00ffDialActive High
0xB0001A-0xB0001B2Read PortPADDLE2
0x00ffDialActive High
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0x4000-0x7FFF16384ROM Bankbank2
0xC000-0xDFFF8192RAM
0xE000-0xE0034Device Read/Writeymsnd, ym2610_device, read, write
0xE2001Read NOP, Device Writetc0140syt, tc0140syt_device, slave_port_w
0xE2011Device Read/Writetc0140syt, tc0140syt_device, slave_comm_r, slave_comm_w
0xE400-0xE4034Write NOP(/* pan */)
0xEA001Read NOP
0xEE001Write NOP(/* ? */)
0xF0001Write NOP(/* ? */)
0xF2001Writesound_bankswitch_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:audiocpu
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384do_50.romCRC(ffe10124) (Fluke: B28F)
0x0000-0x3FFF16384do_50.romCRC(ffe10124) (Fluke: B28F)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288do_obj.romCRC(5491f1c4) (Fluke: E61F)
0x0000-0x7FFFF524288do_obj.romCRC(5491f1c4) (Fluke: E61F)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288do_piv.romCRC(c4f012f7) (Fluke: F9B6)
0x0000-0x7FFFF524288do_piv.romCRC(c4f012f7) (Fluke: F9B6)
Memory Area:ymsnd
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288do_snd.romCRC(f2deb82b) (Fluke: 97C8)
0x0000-0x7FFFF524288do_snd.romCRC(f2deb82b) (Fluke: 97C8)
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