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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.
Metal Soldier Isaac II (Taito Corporation, 1985)
Memory Area:msisaac_map
Address RangeLengthFunctionDescription
0x0000-0xDFFF57344ROM
0xE000-0xE7FF2048RAM
0xE800-0xEFFF2048RAM Device Write, Sharedpalette, palette_device, write, palette
0xF0001Writemsisaac_bg2_textbank_w
0xF0011Write NOP(//???)
0xF0021Write NOP(//???)
0xF0601Writesound_command_w (//sound command)
0xF0611Write NOP(//????)
0xF0801Read PortDSW1
0x0000OffActive High
0x0001OnActive High
0x0000OffActive High
0x0002OnActive High
0x0004OffActive High
0x0000OnActive High
0x00001Active High
0x00082Active High
0x00103Active High
0x00184Active High
0x0000OffActive High
0x0020OnActive High
0x0000OffActive High
0x0040OnActive High
0x0000OffActive High
0x0080OnActive High
0xF0811Read PortDSW2
0x000f9C_1CActive High
0x000e8C_1CActive High
0x000d7C_1CActive High
0x000c6C_1CActive High
0x000b5C_1CActive High
0x000a4C_1CActive High
0x00093C_1CActive High
0x00082C_1CActive High
0x00001C_1CActive High
0x00011C_2CActive High
0x00021C_3CActive High
0x00031C_4CActive High
0x00041C_5CActive High
0x00051C_6CActive High
0x00061C_7CActive High
0x00071C_8CActive High
0x00f09C_1CActive High
0x00e08C_1CActive High
0x00d07C_1CActive High
0x00c06C_1CActive High
0x00b05C_1CActive High
0x00a04C_1CActive High
0x00903C_1CActive High
0x00802C_1CActive High
0x00001C_1CActive High
0x00101C_2CActive High
0x00201C_3CActive High
0x00301C_4CActive High
0x00401C_5CActive High
0x00501C_6CActive High
0x00601C_7CActive High
0x00701C_8CActive High
0xF0821Read PortDSW3
0x0001OffActive High
0x0000OnActive High
0x000000Active High
0x000202Active High
0x0004OffActive High
0x0000OnActive High
0x000000Active High
0x000808Active High
0x0000(C) 1985 Taito CorporationActive High
0x0010(C) Taito CorporationActive High
0x0020(C) Taito Corp. MCMLXXXVActive High
0x0030(C) Taito CorporationActive High
0x0040Insert CoinActive High
0x0000Coins/CreditsActive High
0x0080A and BActive High
0x0000A onlyActive High
0xF0831Read PortIN0
0x0001Start 1Active High
0x0002Start 2Active High
0x0004UnknownActive High
0x0008TiltActive Low
0x0010Coin 1Active High
0x0020Coin 2Active High
0x0040UnknownActive High
0x0080UnknownActive High
0xF0841Read PortIN1
0x0001Button 1Active Low
0x0002Button 2Active Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Joystick DownActive Low
0x0020Joystick UpActive Low
0x0040UnknownActive Low
0x0080UnknownActive Low
0xF0A31Writems_unknown_w (//???? written in interrupt routine)
0xF0C01Writemsisaac_fg_scrollx_w
0xF0C11Writemsisaac_fg_scrolly_w
0xF0C21Writemsisaac_bg2_scrollx_w
0xF0C31Writemsisaac_bg2_scrolly_w
0xF0C41Writemsisaac_bg_scrollx_w
0xF0C51Writemsisaac_bg_scrolly_w
0xF0E01Read/Writemsisaac_mcu_r, msisaac_mcu_w
0xF0E11Readmsisaac_mcu_status_r
0xF100-0xF17F128RAM, Sharedspriteram (//sprites)
0xF400-0xF7FF1024RAM Write, Sharedmsisaac_fg_videoram_w, videoram
0xF800-0xFBFF1024RAM Write, Sharedmsisaac_bg2_videoram_w, videoram3
0xFC00-0xFFFF1024RAM Write, Sharedmsisaac_bg_videoram_w, videoram2
Memory Area:msisaac_sound_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0x4000-0x47FF2048RAM
0x8000-0x80012Device Writeay1, ay8910_device, address_data_w
0x8002-0x80032Device Writeay2, ay8910_device, address_data_w
0x8010-0x801D14Device Writemsm, msm5232_device, write
0x80201Writesound_control_0_w
0x80301Writesound_control_1_w
0xC0001Device Readsoundlatch, generic_latch_8_device, read
0xC0011Writenmi_enable_w
0xC0021Writenmi_disable_w
0xC0031Write NOP(/*???*/ /* this is NOT mixer_enable */)
0xE000-0xFFFF8192Read NOP(/*space for diagnostic ROM (not dumped, not reachable) */)
 

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
0x0000-0x3FFF16384a34_01.binCRC(545e45e7) (Fluke: A372)
Memory Area:cpu2
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048a34.mcu
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192a34_02.binCRC(50da1a81) (Fluke: C592)
0x2000-0x3FFF8192a34_03.binCRC(728a549e) (Fluke: 5F80)
0x4000-0x5FFF8192a34_04.binCRC(e7d19f1c) (Fluke: 8FC4)
0x6000-0x7FFF8192a34_05.binCRC(bed2107d) (Fluke: 88D3)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192a34_06.binCRC(4ec71687) (Fluke: B28D)
0x2000-0x3FFF8192a34_07.binCRC(24922abf) (Fluke: 7430)
0x4000-0x5FFF8192a34_08.binCRC(3ddbf4c0) (Fluke: 97B0)
0x6000-0x7FFF8192a34_09.binCRC(23eb089d) (Fluke: 76F7)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFF16384a34_11.binCRC(40819334) (Fluke: 4C38)
0x4000-0x7FFF16384a34_12.binCRC(4c50b298) (Fluke: 6491)
0x8000-0xBFFF16384a34_13.binCRC(2e2b09b3) (Fluke: 7BA5)
0xC000-0xDFFF8192a34_10.binCRC(a2c53dc1) (Fluke: B9E2)
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