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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.
D-Day (Jaleco, 1984)
Memory Area:main_cpu
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0x8FFF4096RAM, Sharedmainram
0x9000-0x93FF1024RAM, Sharedspriteram
0x9400-0x97FF1024RAM Write, Sharedddayjlc_videoram_w, videoram
0x9800-0x9FFF2048RAM Write, Sharedddayjlc_bgram_w, bgram (/* 9800-981f - videoregs */)
0xA000-0xDFFF16384ROM Bank, Write NOPbank1,
0xE000-0xE0034Writei8257_CH0_w
0xE0081Write NOP
0xF0001Writesound_w
0xF0001Read PortINPUTS
0x0001Joystick UpActive High
0x0002Joystick DownActive High
0x0004Joystick RightActive High
0x0008Joystick LeftActive High
0x0010Button 1Active High
0x0020Button 2Active High
0x0040Button 3Active High
0x0080Button 4Active High
0xF0801Writechar_bank_w
0xF0811Write NOP
0xF0831Writei8257_LMSR_w
0xF0841Writebg0_w
0xF0851Writebg1_w
0xF0861Writebg2_w
0xF1001Write NOP
0xF1001Read PortSYSTEM
0x0001Start 1Active High
0x0002Start 2Active High
0x0004Coin 1Active High
0x0008Coin 2Active High
0x0010Service 1Active High
0x0060SpecialActive High
0x0080UnknownActive High
0xF1011Writemain_nmi_w
0xF102-0xF1054Writeprot_w
0xF1801Read PortDSW1
0x00003Active High
0x00014Active High
0x00025Active High
0x00036Active High
0x000c4C_1CActive High
0x00083C_1CActive High
0x00042C_1CActive High
0x00001C_1CActive High
0x00182C_3CActive High
0x00101C_2CActive High
0x00141C_3CActive High
0x001cFree_PlayActive High
0x000030KActive High
0x002050KActive High
0x0000EasyActive High
0x0040HardActive High
0x0000UprightActive High
0x0080CocktailActive High
0xF2001Read PortDSW2
0x00034C_1CActive High
0x00023C_1CActive High
0x00012C_1CActive High
0x00001C_1CActive High
0x00062C_3CActive High
0x00041C_2CActive High
0x00051C_3CActive High
0x0007Free_PlayActive High
0x0000OffActive High
0x00f8OnActive High
Memory Area:sound_cpu
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192ROM
0x2000-0x23FF1024RAM
0x30001Device Read/Writeay1, ay8910_device, data_r, data_w
0x40001Device Writeay1, ay8910_device, address_w
0x50001Device Read/Writeay2, ay8910_device, data_r, data_w
0x60001Device Writeay2, ay8910_device, address_w
0x70001Writesound_nmi_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
0x0000-0x1FFF819211CRC(fe4de019) (Fluke: A82F)
0x0000-0x1FFF819211CRC(fe4de019) (Fluke: A82F)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF819216CRC(a167fe9a) (Fluke: 5BBC)
0x0000-0x1FFF819216CRC(a167fe9a) (Fluke: 5BBC)
0x2000-0x3FFF819217CRC(13ffe662) (Fluke: 35E0)
0x2000-0x3FFF819217CRC(13ffe662) (Fluke: 35E0)
0x4000-0x5FFF819218CRC(debe6531) (Fluke: 2D40)
0x4000-0x5FFF819218CRC(debe6531) (Fluke: 2D40)
0x6000-0x7FFF819219CRC(5816f947) (Fluke: 1345)
0x6000-0x7FFF819219CRC(5816f947) (Fluke: 1345)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF409615CRC(a6eeaa50) (Fluke: 9E90)
0x0000-0x0FFF409615CRC(a6eeaa50) (Fluke: 9E90)
0x1000-0x1FFF409614CRC(2c0e9bbe) (Fluke: D0EC)
0x1000-0x1FFF409614CRC(2c0e9bbe) (Fluke: D0EC)
Memory Area:gfx3
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF409613CRC(f169b93f) (Fluke: 4C04)
0x0000-0x0FFF409613CRC(f169b93f) (Fluke: 4C04)
0x1000-0x1FFF409612CRC(7f7afe80) (Fluke: 640D)
0x1000-0x1FFF409612CRC(7f7afe80) (Fluke: 640D)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF81921CRC(dbfb8772) (Fluke: 5203)
0x2000-0x3FFF81922CRC(f40ea53e) (Fluke: 4060)
0x2000-0x3FFF81922CRC(f40ea53e) (Fluke: 4060)
0x4000-0x5FFF81923CRC(0780ef60) (Fluke: 3F92)
0x4000-0x5FFF81923CRC(0780ef60) (Fluke: 3F92)
0x6000-0x7FFF81924CRC(75991a24) (Fluke: 9246)
0x6000-0x7FFF81924CRC(75991a24) (Fluke: 9246)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF2564l.binCRC(2c3fa534)
0x0000-0x00FF2564l.binCRC(2c3fa534)
0x0100-0x01FF2565p.binCRC(4fd96b26)
0x0100-0x01FF2565p.binCRC(4fd96b26)
0x0200-0x02FF2564m.binCRC(e0ab9a8f)
0x0200-0x02FF2564m.binCRC(e0ab9a8f)
0x0300-0x03FF2565n.binCRC(61d85970)
0x0300-0x03FF2565n.binCRC(61d85970)
0x0400-0x04FF2563l.binCRC(da6fe846)
0x0400-0x04FF2563l.binCRC(da6fe846)
Memory Area:user1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF81925CRC(299b05f2) (Fluke: 0AEF)
0x0000-0x1FFF81925CRC(299b05f2) (Fluke: 0AEF)
0x2000-0x3FFF81926CRC(38ae2616) (Fluke: 5E4D)
0x2000-0x3FFF81926CRC(38ae2616) (Fluke: 5E4D)
0x4000-0x5FFF81927CRC(4210f6ef) (Fluke: CB71)
0x4000-0x5FFF81927CRC(4210f6ef) (Fluke: CB71)
0x6000-0x7FFF81928CRC(91a32130) (Fluke: B153)
0x6000-0x7FFF81928CRC(91a32130) (Fluke: B153)
0x8000-0x9FFF81929CRC(ccb82f09) (Fluke: 7E24)
0x8000-0x9FFF81929CRC(ccb82f09) (Fluke: 7E24)
0xA000-0xBFFF819210CRC(5452aba1) (Fluke: C86A)
0xA000-0xBFFF819210CRC(5452aba1) (Fluke: C86A)
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