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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.
Youjyuden (Irem, 1986)
Memory Area:kungfum_io_map
Address RangeLengthFunctionDescription
0x00001Read Port, Device WriteSYSTEM, irem_audio, irem_audio_device, cmd_w
0x00011Read Port, WriteP1, m62_flipscreen_w (/* + coin counters */)
0x00021Read PortP2
0x00031Read PortDSW1
0x0003LivesActive High
0x00022Active High
0x00033Active High
0x00014Active High
0x00005Active High
0x00041Read PortDSW2
Memory Area:ldrun_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0xC000-0xC0FF256Write Only, Sharedspriteram
0xD000-0xDFFF4096RAM Write, Sharedm62_tileram_w, m62_tileram
0xE000-0xEFFF4096RAM
Memory Area:youjyudn_io_map
Address RangeLengthFunctionDescription
0x00001Read Port, Device WriteSYSTEM, irem_audio, irem_audio_device, cmd_w
0x00011Read Port, WriteP1, m62_flipscreen_w (/* + coin counters */)
0x00021Read PortP2
0x00031Read PortDSW1
0x0003LivesActive High
0x00022Active High
0x00033Active High
0x00014Active High
0x00005Active High
0x00041Read PortDSW2
0x00801Writem62_hscroll_high_w
0x00811Writem62_hscroll_low_w
0x00831Writeyoujyudn_bankswitch_w
Memory Area:youjyudn_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xBFFF16384ROM Bankbank1
0xC000-0xC0FF256Write Only, Sharedspriteram
0xC800-0xCFFF2048RAM Write, Sharedm62_textram_w, m62_textram
0xD000-0xD7FF2048RAM Write, Sharedm62_tileram_w, m62_tileram
0xE000-0xEFFF4096RAM
 

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
0x0000-0x3FFF16384yju_p3bb.0CRC(c017913c),tiles (first half empty) (Fluke: 411E)
0x4000-0x7FFF16384yju_p1bb.1CRC(94627523) (Fluke: D81C)
0x8000-0xBFFF16384yju_p1cb.2CRC(6a378c56) (Fluke: 8484)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384yju_b4ka.00CRC(1bbb864a),sprites (Fluke: 13EC)
0x4000-0x7FFF16384yju_b4fa.01CRC(14b4dd24) (Fluke: D203)
0x8000-0xBFFF16384yju_b3na.10CRC(68879321) (Fluke: A7C4)
0xC000-0xFFFF16384yju_b4na.11CRC(2860a68b) (Fluke: 9D69)
0x10000-0x13FFF16384yju_b4ca.20CRC(ab365829) (Fluke: A703)
0x14000-0x17FFF16384yju_b4ea.21CRC(b36c31e4) (Fluke: 3771)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384yju_p4lb.2CRC(87878d9b),chars (Fluke: 4F6B)
0x4000-0x7FFF16384yju_p4mb.1CRC(1e1a0d09) (Fluke: 287C)
0x8000-0xBFFF16384yju_p4pb.0CRC(b4ab520b) (Fluke: E5E7)
Memory Area:irem_audio:iremsound
Address RangeLengthLabel/LocationDescription
0xC000-0xFFFF16384yju_a3fb.binCRC(e15c8030),6803 code (Fluke: 40B9)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384yju_a4eb.binCRC(0d356bdc) (Fluke: 04E4)
0x4000-0x7FFF16384yju_a4db.binCRC(c169be13) (Fluke: 48BD)
0x10000-0x13FFF16384yju_p4cb.0CRC(60baf3b1),banked at 8000-bfff (Fluke: 49F4)
0x14000-0x17FFF16384yju_p4eb.1CRC(8d0521f8) (Fluke: 2B2C)
Memory Area:plds
Address RangeLengthLabel/LocationDescription
0x0000-0x0103260yju_b-pal16r4a-8m.palCRC(3ece8e61) (Fluke: F236)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256yju_p2jb.bprCRC(a4483631),character palette red component (Fluke: 63C6)
0x0100-0x01FF256yju_b1ma.rCRC(a8340e13),sprite palette red component (Fluke: 350A)
0x0200-0x02FF256yju_p2kb.bprCRC(85481103),character palette green component (Fluke: 49D1)
0x0300-0x03FF256yju_b1na.gCRC(f5b4bc41),sprite palette green component (Fluke: B405)
0x0400-0x04FF256yju_p2hb.bprCRC(a6fd355c),character palette blue component (Fluke: EE25)
0x0500-0x05FF256yju_b1la.bCRC(45e10491),sprite palette blue component (Fluke: 9985)
0x0620-0x081F512yju_p-8d.bprCRC(6cef0fbd),unknown (Fluke: 3497)
0x0820-0x091F256yju_b-6f.bprCRC(82c20d12),video timing - same as kungfum (Fluke: E99B)
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