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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.
Victory Road (SNK, 1986)
Memory Area:ikari_cpuA_map
Address RangeLengthFunctionDescription
0x0000-0xBFFF49152ROM
0xC0001Read PortIN0
0x0001SpecialActive High
0x0002Service 1Active Low
0x0004TiltActive Low
0x0008UnknownActive Low
0x0010Coin 2Active Low
0x0020Coin 1Active Low
0x0040Start 2Active Low
0x0080Start 1Active Low
0xC1001Read PortIN1
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x00f0PositionalActive High
0xC2001Read PortIN2
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x00f0PositionalActive High
0xC3001Read Port, WriteIN3, ikari_coin_counter_w (// ikarijp doesn't use the coin counter)
0x0001Button 1Active Low
0x0002Button 2Active Low
0x0004UnknownActive Low
0x0008Button 1Active Low
0x0010Button 2Active Low
0x0020UnknownActive Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0xC4001Writesnk_soundlatch_w
0xC5001Read PortDSW1
0x0001NoActive High
0x0000YesActive High
0x0002SeparateActive High
0x0000CommonActive High
0x0004SpecialActive High
0x0008LivesActive High
0x00083Active High
0x00005Active High
0x0030Coin_AActive High
0x00004C_1CActive High
0x00103C_1CActive High
0x00202C_1CActive High
0x00301C_1CActive High
0x00c0Coin_BActive High
0x00001C_2CActive High
0x00401C_3CActive High
0x00801C_4CActive High
0x00c01C_6CActive High
0xC6001Read PortDSW2
0x0003DifficultyActive High
0x0003EasyActive High
0x0002NormalActive High
0x0001HardActive High
0x0000HardestActive High
0x000cDemo Sounds OffActive High
0x0008Demo Sounds OnActive High
0x0000FreezeActive High
0x0004Infinite Lives (Cheat)Active High
0x0030SpecialActive High
0x0040Allow_ContinueActive High
0x0040NoActive High
0x0000YesActive High
0x0000NoActive High
0x0080YesActive High
0xC7001Read/Writesnk_cpuB_nmi_trigger_r, snk_cpuA_nmi_ack_w
0xC8001Writesnk_bg_scrolly_w
0xC8801Writesnk_bg_scrollx_w
0xC9001Writeikari_bg_scroll_msb_w
0xC9801Writeikari_unknown_video_w
0xCA001Writesnk_sp16_scrolly_w
0xCA801Writesnk_sp16_scrollx_w
0xCB001Writesnk_sp32_scrolly_w
0xCB801Writesnk_sp32_scrollx_w
0xCC001Writehardflags_scrolly_w
0xCC801Writehardflags_scrollx_w
0xCD001Writeikari_sp_scroll_msb_w
0xCD801Writehardflags_scroll_msb_w
0xCE001Readhardflags1_r
0xCE201Readhardflags2_r
0xCE401Readhardflags3_r
0xCE601Readhardflags4_r
0xCE801Readhardflags5_r
0xCEA01Readhardflags6_r
0xCEE01Readhardflags7_r
0xD000-0xD7FF2048RAM Write, Mirror, Sharedsnk_bg_videoram_w, 0x0800, bg_videoram
0xE000-0xF7FF6144RAM, Sharedspriteram (// + work ram)
0xF800-0xFFFF2048RAM Write, Sharedsnk_tx_videoram_w, tx_videoram (// + work RAM)
Memory Area:ikari_cpuB_map
Address RangeLengthFunctionDescription
0x0000-0xBFFF49152ROM
0xC0001Read/Writesnk_cpuA_nmi_trigger_r, snk_cpuB_nmi_ack_w
0xC9801Writeikari_unknown_video_w
0xCC001Writehardflags_scrolly_w
0xCC801Writehardflags_scrollx_w
0xCD801Writehardflags_scroll_msb_w
0xCE001Readhardflags1_r
0xCE201Readhardflags2_r
0xCE401Readhardflags3_r
0xCE601Readhardflags4_r
0xCE801Readhardflags5_r
0xCEA01Readhardflags6_r
0xCEE01Readhardflags7_r
0xD000-0xD7FF2048RAM Write, Mirror, Sharedsnk_bg_videoram_w, 0x0800, bg_videoram
0xE000-0xF7FF6144RAM, Sharedspriteram
0xF800-0xFFFF2048RAM Write, Sharedsnk_tx_videoram_w, tx_videoram
Memory Area:YM3526_Y8950_sound_map
Address RangeLengthFunctionDescription
0x0000-0xBFFF49152ROM
0xC000-0xCFFF4096RAM
0xE0001Device Readsoundlatch, generic_latch_8_device, read
0xE8001Device Read/Writeym1, ym3526_device, status_port_r, control_port_w
0xEC001Device Writeym1, ym3526_device, write_port_w
0xF0001Device Read/Writeym2, y8950_device, status_port_r, control_port_w
0xF4001Device Writeym2, y8950_device, write_port_w
0xF8001Read/Writesnk_sound_status_r, snk_sound_status_w
Memory Area:YM3526_YM3526_sound_map
Address RangeLengthFunctionDescription
0x0000-0xBFFF49152ROM
0xC000-0xCFFF4096RAM
0xE0001Device Readsoundlatch, generic_latch_8_device, read
0xE8001Device Read/Writeym1, ym3526_device, status_port_r, control_port_w
0xEC001Device Writeym1, ym3526_device, write_port_w
0xF0001Device Read/Writeym2, ym3526_device, status_port_r, control_port_w
0xF4001Device Writeym2, ym3526_device, write_port_w
0xF8001Read/Writesnk_sound_status_r, snk_sound_status_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
0x0000-0xFFFF65536p3.k7CRC(bac745f6) (Fluke: 5F0E)
Memory Area:bg_tiles
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768p17.cd4CRC(19d4518c) (Fluke: 5E75)
0x8000-0xFFFF32768p18.cd2CRC(d818be43) (Fluke: 4A57)
0x10000-0x17FFF32768p19.b4CRC(d64e0f89) (Fluke: 9598)
0x18000-0x1FFFF32768p20.b2CRC(edba0f31) (Fluke: 1596)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536p1.p4CRC(e334acef) (Fluke: 9DE6)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x03FF1024mb7122e.1kCRC(491ab831) (Fluke: 69CC)
0x0400-0x07FF1024mb7122e.2lCRC(8feca424) (Fluke: 4D8C)
0x0800-0x0BFF1024mb7122e.1lCRC(220076ca) (Fluke: 05C6)
Memory Area:sp16_tiles
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768p8.d3CRC(df7f252a) (Fluke: E0AC)
0x8000-0xFFFF32768p9.ef3CRC(9897bc05) (Fluke: 8D5B)
0x10000-0x17FFF32768p10.gh3CRC(ecd3c0ea) (Fluke: F522)
Memory Area:sp32_tiles
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768p11.m4CRC(668b25a4) (Fluke: 7E6E)
0x8000-0xFFFF32768p14.m2CRC(a7031d4a) (Fluke: D98D)
0x10000-0x17FFF32768p12.np4CRC(f44e95fa) (Fluke: 4FAC)
0x18000-0x1FFFF32768p15.np2CRC(120d2450) (Fluke: F0F2)
0x20000-0x27FFF32768p13.r4CRC(980ca3d8) (Fluke: D994)
0x28000-0x2FFFF32768p16.r2CRC(9f820e8a) (Fluke: 7EFA)
Memory Area:sub
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536p2.p8CRC(907fac83) (Fluke: 4F17)
Memory Area:tx_tiles
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384p7.b3CRC(2b6ed95b) (Fluke: 2C57)
Memory Area:ym2
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF65536p4.ef5CRC(e10fb8cc) (Fluke: 9D70)
0x10000-0x1FFFF65536p5.g5CRC(93e5f110) (Fluke: DAB4)
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