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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.
Deer Hunting USA V4.3 (Sammy USA Corporation, 2000)
Memory Area:mj4simai_map
Address RangeLengthFunctionDescription
0x0000-0x1FFFFF2097152ROM(// ROM)
0x200000-0x20FFFF65536RAM(// RAM)
0x600000-0x6000012Readmj4simai_p1_r (// P1)
0x600002-0x6000032Readmj4simai_p2_r (// P2)
0x600004-0x6000052Writemj4simai_keyboard_w (// select keyboard row to read)
0x600006-0x6000072Device Readwatchdog, watchdog_timer_device, reset16_r
0x600100-0x6001012Read PortSYSTEM (//)
0x600200-0x6002012Write NOP(// Leds? Coins?)
0x600300-0x6003012Read PortDSW1 (// DSW 1)
0x0007Coin_AActive High
0x00054C_1CActive High
0x00062C_1CActive High
0x00071C_1CActive High
0x00041C_2CActive High
0x00031C_3CActive High
0x00021C_4CActive High
0x00011C_5CActive High
0x00001C_6CActive High
0x0038Coin_AActive High
0x00284C_1CActive High
0x00302C_1CActive High
0x00381C_1CActive High
0x00201C_2CActive High
0x00181C_3CActive High
0x00101C_4CActive High
0x00081C_5CActive High
0x00001C_6CActive High
0x0040OffActive High
0x0000OnActive High
0xff00UnknownActive Low
0x600300-0x60030F16Writesound_bank_w (// Samples Banks)
0x600302-0x6003032Read PortDSW2 (// DSW 2)
0x00004Active High
0x0080Pump ActionActive High
0x0000Hand GunActive High
0xff00UnknownActive Low
0x0001OffActive High
0x0000OnActive High
0x0002OffActive High
0x0000OnActive High
0x0004Demo_SoundsActive High
0x0000OffActive High
0x0004OnActive High
0x0018DifficultyActive High
0x0010EasyActive High
0x0018NormalActive High
0x0008HardActive High
0x0000HardestActive High
0x0020RedActive High
0x0000YellowActive High
0x0040LivesActive High
0x00403Active High
0xB00000-0xB03FFF16384Device Read/Writex1snd, x1_010_device, word_r, word_w (// Sound)
0xC00000-0xC3FFFF262144RAM, Sharedspriteram (// Sprites)
0xC40000-0xC4FFFF65536RAM Device Write, Sharedpalette, palette_device, write, palette (// Palette)
0xC60000-0xC6003F64Write, Sharedvregs_w, vregs (// Video Registers)
0xFFFC00-0xFFFFFF1024Device Read/Writetmp68301, tmp68301_device, regs_r, regs_w (// TMP68301 Registers)
Memory Area:samshoot_map
Address RangeLengthFunctionDescription
0x0000-0x1FFFFF2097152ROM
0x200000-0x20FFFF65536RAM
0x300000-0x30FFFF65536RAM, Sharednvram
0x400000-0x4000012Read PortDSW1 (// DSW 1)
0x0007Coin_AActive High
0x00054C_1CActive High
0x00062C_1CActive High
0x00071C_1CActive High
0x00041C_2CActive High
0x00031C_3CActive High
0x00021C_4CActive High
0x00011C_5CActive High
0x00001C_6CActive High
0x0038Coin_AActive High
0x00284C_1CActive High
0x00302C_1CActive High
0x00381C_1CActive High
0x00201C_2CActive High
0x00181C_3CActive High
0x00101C_4CActive High
0x00081C_5CActive High
0x00001C_6CActive High
0x0040OffActive High
0x0000OnActive High
0xff00UnknownActive Low
0x400002-0x4000032Read PortBUTTONS (// Buttons)
0x0001Button 1Active Low
0x0002Button 2Active Low
0xfffcUnknownActive Low
0x400300-0x40030F16Writesound_bank_w (// Samples Banks)
0x500000-0x5000012Read PortGUN1 (// P1)
0x00ffLightgun XActive High
0xff00Lightgun YActive High
0x580000-0x5800012Read PortGUN2 (// P2)
0xffffUnknownActive Low
0x700000-0x7000012Read PortTRIGGER (// Trigger)
0x0040SpecialActive Low
0x0080Start 1Active Low
0xff3fUnknownActive Low
0x700002-0x7000032Read PortPUMP (// Pump)
0x0040SpecialActive Low
0xffbfUnknownActive Low
0x700004-0x7000052Read Port, WriteCOIN, samshoot_coin_w (// Coins)
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0004Service 1Active Low
0x0008Service 2Active Low
0xfff0UnknownActive Low
0x700006-0x7000072Device Readwatchdog, watchdog_timer_device, reset16_r (// Watchdog?)
0x800000-0x83FFFF262144RAM, Sharedspriteram (// Sprites)
0x840000-0x84FFFF65536RAM Device Write, Sharedpalette, palette_device, write, palette (// Palette)
0x860000-0x86003F64Write, Sharedvregs_w, vregs (// Video Registers)
0x900000-0x903FFF16384Device Read/Writex1snd, x1_010_device, word_r, word_w (// Sound)
0xFFFC00-0xFFFFFF1024Device Read/Writetmp68301, tmp68301_device, regs_r, regs_w (// TMP68301 Registers)
 

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:sprites
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFFF8388608as0901m01.u38CRC(1d6acf8f) (Fluke: 78D0)
0x800000-0xFFFFFF8388608as0902m01.u39CRC(c7ca2128) (Fluke: 49BE)
0x1000000-0x17FFFFF8388608as0903m01.u40CRC(e8ef81b3) (Fluke: 5E42)
0x1800000-0x1FFFFFF8388608as0904m01.u41CRC(d0f97fdc) (Fluke: FAB0)
Memory Area:x1snd
Address RangeLengthLabel/LocationDescription
0x100000-0x4FFFFF4194304as0905m01.u18CRC(8d8165bb) (Fluke: 3698)
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