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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.
Deroon DeroDero (Tecmo, 1995)
Memory Area:io_map
Address RangeLengthFunctionDescription
0x0000-0x00034Device Read/Writeymf, ymf262_device, read, write
0x00101Device Read/Writeoki, okim6295_device, read, write
0x00201Writeoki_bank_w
0x00301Writez80_bank_w
0x00401Device Readsoundlatch, generic_latch_8_device, read
0x00501Device Writesoundlatch2, generic_latch_8_device, write
0x0060-0x00612Device Read/Writeymz, ymz280b_device, read, write
Memory Area:main_map
Address RangeLengthFunctionDescription
0x0000-0xFFFFF1048576ROM
0x200000-0x20FFFF65536RAM(// work ram)
0x210000-0x2100012Read NOP(// single byte overflow on stack defined as 0x210000)
0x300000-0x300FFF4096RAM Write, Sharedbg0_tilemap_w, bg0tilemap_ram (// bg0 ram)
0x301000-0x3013FF1024RAM Write, Sharedbg0_tilemap_lineram_w, bg0_lineram (// bg0 linescroll? (guess))
0x400000-0x400FFF4096RAM Write, Sharedbg1_tilemap_w, bg1tilemap_ram (// bg1 ram)
0x401000-0x4013FF1024RAM Write, Sharedbg1_tilemap_lineram_w, bg1_lineram (// bg1 linescroll? (guess))
0x500000-0x500FFF4096RAM Write, Sharedbg2_tilemap_w, bg2tilemap_ram (// bg2 ram)
0x501000-0x5013FF1024RAM Write, Sharedbg2_tilemap_lineram_w, bg2_lineram (// bg2 linescroll? (guess))
0x700000-0x703FFF16384RAM Write, Sharedfg_tilemap_w, fgtilemap_ram (// fix ram)
0x800000-0x80FFFF65536RAM, Sharedspriteram (// obj ram)
0x880000-0x88000B12Readunk880000_r
0x880000-0x88002F48Write, Sharedunk880000_w, 880000regs (// 10 byte dta@88000c, 880022=watchdog?)
0x900000-0x907FFF32768RAM Device Write, Sharedpalette, palette_device, write, palette (// AM_WRITEONLY // obj pal)
0x980000-0x980FFF4096RAM Write, Sharedtilemap_paletteram16_xGGGGGRRRRRBBBBB_word_w, tmap_palette
0xA00000-0xA000012Writeeeprom_w
0xA80000-0xA800056Write Only, Shareda80000regs (// a80000-3 scroll? a80004 inverted ? 3 : 0)
0xB00000-0xB000056Write Only, Sharedb00000regs (// b00000-3 scrool?, b00004 inverted ? 3 : 0)
0xB80000-0xB800012Read/Writeprot_status_r, prot_status_w
0xC00000-0xC000056Write Only, Sharedc00000regs (// c00000-3 scroll? c00004 inverted ? 13 : 10)
0xC80000-0xC800056Write Only, Sharedc80000regs (// c80000-3 scrool? c80004 inverted ? 3 : 0)
0xD00000-0xD000012Read PortP1
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040Button 3Active Low
0x0080Start 1Active Low
0x0100Coin 1Active Low
0x0200ServiceActive Low
0x0400Button 4Active Low
0x0800UnusedActive Low
0x1000UnusedActive Low
0x2000UnusedActive Low
0x4000UnusedActive Low
0x8000UnusedActive Low
0xD00002-0xD000032Read PortP2
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040Button 3Active Low
0x0080Start 2Active Low
0x0100UnusedActive Low
0x0200Service 1Active Low
0x0400Button 4Active Low
0x0800UnusedActive Low
0x1000UnusedActive Low
0x2000UnusedActive Low
0x4000UnusedActive Low
0x8000UnusedActive Low
0xD80000-0xD800012Readeeprom_r
0xE00000-0xE000012Writesound_w
0xE80000-0xE800012Writeprot_data_w
0xF00000-0xF000012Readsound_r
0xF80000-0xF800012Readprot_data_r
Memory Area:sound_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM
0x8000-0xBFFF16384ROM Bankbank1
0xE000-0xF7FF6144RAM
 

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
0x0000-0x3FFFF262144t003.uz1CRC(8bdfafa0) (Fluke: A3A0)
0x0000-0x1FFF8192deroon_68hc11a8.rom
0x2000-0x21FF512deroon_68hc11a8.eeprom
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFFF1048576t301.ubd1CRC(8b026177) (Fluke: 8DF2)
Memory Area:gfx4
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFFF1048576t201.ubb1CRC(d5a087ac) (Fluke: 7E33)
Memory Area:gfx5
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFFF1048576t202.ubc1CRC(f051dae1) (Fluke: 9820)
Memory Area:oki
Address RangeLengthLabel/LocationDescription
0x80000-0xFFFFF524288t501.uad1CRC(2fbcfe27) (Fluke: CAA6)
Memory Area:ymz
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFFF2097152t401.uya1CRC(92111992) (Fluke: 6124)
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