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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.
Pipe Dream (Video System Co., 1990)
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0x9FFF8192RAM
0xA000-0xBFFF8192ROM Bankbank1
0xC000-0xCFFF4096RAM Device Write, Sharedpalette, palette_device, write, palette
0xD000-0xFFFF12288Read/Write, Sharedfromance_videoram_r, fromance_videoram_w, videoram
Memory Area:main_portmap
Address RangeLengthFunctionDescription
0x00101Writefromance_crtc_data_w
0x00111Writefromance_crtc_register_w
0x00201Read Port, WriteP1, sound_command_w
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0x00211Read Port, WriteP2, pipedrm_bankswitch_w
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0x00221Read PortDSW1
0x000fCoin_AActive High
0x00065C_1CActive High
0x00074C_1CActive High
0x00083C_1CActive High
0x00092C_1CActive High
0x00046 Coins/4 CreditsActive High
0x00034C_3CActive High
0x000f1C_1CActive High
0x00025 Coins/6 CreditsActive High
0x00014C_5CActive High
0x00002C_3CActive High
0x00052C_3CActive High
0x000e1C_2CActive High
0x000d1C_3CActive High
0x000c1C_4CActive High
0x000b1C_5CActive High
0x000a1C_6CActive High
0x00f0Coin_BActive High
0x00605C_1CActive High
0x00704C_1CActive High
0x00803C_1CActive High
0x00902C_1CActive High
0x00406 Coins/4 CreditsActive High
0x00304C_3CActive High
0x00f01C_1CActive High
0x00205 Coins/6 CreditsActive High
0x00104C_5CActive High
0x00002C_3CActive High
0x00502C_3CActive High
0x00e01C_2CActive High
0x00d01C_3CActive High
0x00c01C_4CActive High
0x00b01C_5CActive High
0x00a01C_6CActive High
0x0022-0x00254Writefromance_scroll_w
0x00231Read PortDSW2
0x0003DifficultyActive High
0x0002EasyActive High
0x0003NormalActive High
0x0001HardActive High
0x0000SuperActive High
0x000cLivesActive High
0x000c1Active High
0x00082Active High
0x00043Active High
0x00004Active High
0x0010Demo_SoundsActive High
0x0000OffActive High
0x0010OnActive High
0x0020Flip_ScreenActive High
0x0020OffActive High
0x0000OnActive High
0x0000OffActive High
0x0040OnActive High
0x00241Read PortSYSTEM
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0004Start 1Active Low
0x0008Start 2Active Low
0x0010UnknownActive Low
0x0020UnknownActive Low
0x0040Service 1Active Low
0x0080UnknownActive Low
0x00251Readpending_command_r
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0x77FF30720ROM
0x7800-0x7FFF2048RAM
0x8000-0xFFFF32768ROM Bankbank2
Memory Area:sound_portmap
Address RangeLengthFunctionDescription
0x00041Writesound_bankswitch_w
0x00161Readsound_command_r
0x00171Writepending_command_clear_w
0x0018-0x001B4Device Read/Writeymsnd, ym2610_device, read, write
 

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
0x0000-0x7FFFF524288s73CRC(63f4e10c) (Fluke: AA22)
0x0000-0x7FFFF524288s73CRC(63f4e10c) (Fluke: AA22)
0x0000-0x7FFFF524288s73CRC(63f4e10c) (Fluke: AA22)
0x0000-0x7FFFF524288s73CRC(63f4e10c) (Fluke: AA22)
0x80000-0xFFFFF524288s72CRC(4e669e97) (Fluke: E984)
0x80000-0xFFFFF524288s72CRC(4e669e97) (Fluke: E984)
0x80000-0xFFFFF524288s72CRC(4e669e97) (Fluke: E984)
0x80000-0xFFFFF524288s72CRC(4e669e97) (Fluke: E984)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288s71CRC(431485ee) (Fluke: 70A0)
0x0000-0x7FFFF524288s71CRC(431485ee) (Fluke: 70A0)
0x0000-0x7FFFF524288s71CRC(431485ee) (Fluke: 70A0)
0x0000-0x7FFFF524288s71CRC(431485ee) (Fluke: 70A0)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768ya.u129CRC(9b4d84a2) (Fluke: BCB8)
0x10000-0x1FFFF65536yb.u110CRC(7416554a) (Fluke: 4F26)
Memory Area:plds
Address RangeLengthLabel/LocationDescription
0x0000-0x0116279palce16v8h.114CRC(1f3a3816),Stamped 1023 (Fluke: CE33)
0x0000-0x0116279palce16v8h.114CRC(1f3a3816),Stamped 1023 (Fluke: CE33)
0x0000-0x0116279palce16v8h.114CRC(1f3a3816),Stamped 1023 (Fluke: CE33)
0x0000-0x0116279palce16v8h.114CRC(1f3a3816),Stamped 1023 (Fluke: CE33)
0x0200-0x0316279gal16v8a.115CRC(2b32e239),Stamped 1015 (Fluke: B47F)
0x0200-0x0316279gal16v8a.115CRC(2b32e239),Stamped 1015 (Fluke: B47F)
0x0200-0x0316279gal16v8a.115CRC(2b32e239),Stamped 1015 (Fluke: B47F)
0x0200-0x0316279gal16v8a.115CRC(2b32e239),Stamped 1015 (Fluke: B47F)
0x0400-0x0516279gal16v8a.116CRC(3674f043),Stamped 1014 (Fluke: 8932)
0x0400-0x0516279gal16v8a.116CRC(3674f043),Stamped 1014 (Fluke: 8932)
0x0400-0x0516279gal16v8a.116CRC(3674f043),Stamped 1014 (Fluke: 8932)
0x0400-0x0516279gal16v8a.116CRC(3674f043),Stamped 1014 (Fluke: 8932)
0x0600-0x0716279gal16v8a.127CRC(7115d95c),Stamped 1016 (Fluke: 2BA1)
0x0600-0x0716279gal16v8a.127CRC(7115d95c),Stamped 1016 (Fluke: 2BA1)
0x0600-0x0716279gal16v8a.127CRC(7115d95c),Stamped 1016 (Fluke: 2BA1)
0x0600-0x0716279gal16v8a.127CRC(7115d95c),Stamped 1016 (Fluke: 2BA1)
Memory Area:sub
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768u4.u86CRC(497fad4c) (Fluke: 47AC)
0x0000-0x7FFF32768u4.u86CRC(497fad4c) (Fluke: 47AC)
0x0000-0x7FFF32768u4.u86CRC(497fad4c) (Fluke: 47AC)
0x0000-0x7FFF32768u4.u86CRC(497fad4c) (Fluke: 47AC)
0x10000-0x1FFFF65536u3.u99CRC(4800322a) (Fluke: 0135)
0x10000-0x1FFFF65536u3.u99CRC(4800322a) (Fluke: 0135)
0x10000-0x1FFFF65536u3.u99CRC(4800322a) (Fluke: 0135)
0x10000-0x1FFFF65536u3.u99CRC(4800322a) (Fluke: 0135)
Memory Area:ymsnd
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288g71.u118CRC(488e2fd1) (Fluke: FA6E)
0x0000-0x7FFFF524288g71.u118CRC(488e2fd1) (Fluke: FA6E)
0x0000-0x7FFFF524288g71.u118CRC(488e2fd1) (Fluke: FA6E)
0x0000-0x7FFFF524288g71.u118CRC(488e2fd1) (Fluke: FA6E)
Memory Area:ymsnd.deltat
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288g72.u83CRC(dc3d14be) (Fluke: 5DD9)
0x0000-0x7FFFF524288g72.u83CRC(dc3d14be) (Fluke: 5DD9)
0x0000-0x7FFFF524288g72.u83CRC(dc3d14be) (Fluke: 5DD9)
0x0000-0x7FFFF524288g72.u83CRC(dc3d14be) (Fluke: 5DD9)
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