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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.
Snow Board Championship (Gaelco, 1996)
Memory Area:snowboar_map
Address RangeLengthFunctionDescription
0x0000-0xFFFFF1048576ROM(/* ROM */)
0x200000-0x20FFFF65536RAM Write, Sharedgaelco2_vram_w, spriteram (/* Video RAM */)
0x202890-0x2028FF112Device Read/Writegaelco, gaelco_cg1v_device, gaelcosnd_r, gaelcosnd_w (/* Sound Registers */)
0x210000-0x211FFF8192RAM Write, Sharedgaelco2_palette_w, paletteram (/* Palette */)
0x212000-0x213FFF8192RAM(/* Extra RAM */)
0x218004-0x2180096RAM, Sharedvregs (/* Video Registers */)
0x300000-0x3000034Writegaelco2_coin2_w (/* Coin Counters */)
0x300000-0x3000012Read PortP1
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick RightActive Low
0x0008Joystick LeftActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040Button 3Active Low
0xff80UnknownActive Low
0x300008-0x3000092Writegaelco2_eeprom_data_w (/* EEPROM data */)
0x30000A-0x30000B2Writegaelco2_eeprom_sk_w (/* EEPROM serial clock */)
0x30000C-0x30000D2Writegaelco2_eeprom_cs_w (/* EEPROM chip select */)
0x300010-0x3000112Read PortP2
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick RightActive Low
0x0008Joystick LeftActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040Button 3Active Low
0xff80UnknownActive Low
0x300020-0x3000212Read PortCOIN
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0008Service 1Active Low
0x0010Start 1Active Low
0x0020Start 2Active Low
0x0040SpecialActive High
0x0080SpecialActive Low
0x310000-0x31FFFF65536Read/Write, Sharedsnowboar_protection_r,snowboar_protection_w, snowboar_prot (/* Protection */)
0xFE0000-0xFEFFFF65536RAM(/* Work RAM */)
 

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:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288sb.a0CRC(aa476e44),GFX only (Fluke: DAF4)
0x80000-0xFFFFF524288sb.a1CRC(6bc99195),GFX only (Fluke: A7C8)
0x100000-0x17FFFF524288sb.a2CRC(fae2ebba),GFX only (Fluke: C292)
0x180000-0x1FFFFF524288sb.a3CRC(17ed9cf8),GFX only (Fluke: 33D5)
0x200000-0x27FFFF524288sb.a4CRC(2ba3a5c8),Sound only (Fluke: D520)
0x280000-0x2FFFFF524288sb.a5CRC(ae011eb3),Sound only (Fluke: 3FD1)
0x400000-0x47FFFF524288sb.b0CRC(96c714cd),GFX only (Fluke: BD73)
0x480000-0x4FFFFF524288sb.b1CRC(39a4c30c),GFX only (Fluke: AD5D)
0x500000-0x57FFFF524288sb.b2CRC(b58fcdd6),GFX only (Fluke: 1F07)
0x580000-0x5FFFFF524288sb.b3CRC(96afdebf),GFX only (Fluke: B05E)
0x600000-0x67FFFF524288sb.b4CRC(e62cf8df),Sound only (Fluke: 92AE)
0x680000-0x6FFFFF524288sb.b5CRC(caa90856),Sound only (Fluke: A0FA)
0x800000-0x87FFFF524288sb.c0CRC(c9d57a71),GFX only (Fluke: 10D1)
0x880000-0x8FFFFF524288sb.c1CRC(1d14a3d4),GFX only (Fluke: E146)
0x900000-0x97FFFF524288sb.c2CRC(55026352),GFX only (Fluke: A9A2)
0x980000-0x9FFFFF524288sb.c3CRC(d9b62dee),GFX only (Fluke: C754)
0xC00000-0xC7FFFF524288sb.d0CRC(7434c1ae),GFX only (Fluke: DC9D)
0xC80000-0xCFFFFF524288sb.d1CRC(f00cc6c8),GFX only (Fluke: A03A)
0xD00000-0xD7FFFF524288sb.d2CRC(019f9aec),GFX only (Fluke: 9E6A)
0xD80000-0xDFFFFF524288sb.d3CRC(d05bd286),GFX only (Fluke: BF87)
0x1000000-0x107FFFF524288sb.e0CRC(e6195323),GFX only (Fluke: 5651)
0x1080000-0x10FFFFF524288sb.e1CRC(9f38910b),GFX only (Fluke: BE0F)
0x1100000-0x117FFFF524288sb.e2CRC(f5948c6c),GFX only (Fluke: 1E2D)
0x1180000-0x11FFFFF524288sb.e3CRC(4baa678f),GFX only (Fluke: 7FAA)
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