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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.
Heavy Smash (Data East Corporation, 1993)
Memory Area:hvysmsh_map
Address RangeLengthFunctionDescription
0x0000-0xFFFFF1048576ROM
0x100000-0x107FFF32768RAM
0x120000-0x1200034Read PortINPUTS
0x0001Joystick UpActive Low
0x0002Joystick DownActive Low
0x0004Joystick LeftActive Low
0x0008Joystick RightActive Low
0x0010Button 1Active Low
0x0020Button 2Active Low
0x0040Button 3Active Low
0x0080Start 1Active Low
0x0100Joystick UpActive Low
0x0200Joystick DownActive Low
0x0400Joystick LeftActive Low
0x0800Joystick RightActive Low
0x1000Button 1Active Low
0x2000Button 2Active Low
0x4000Button 3Active Low
0x8000Start 2Active Low
0x10000Coin 1Active Low
0x20000Coin 2Active Low
0x40000Service 1Active Low
0x100000CustomActive High
0x200000UnusedActive Low
0x400000UnusedActive Low
0x800000UnusedActive Low
0x1000000SpecialActive High
0x2000000UnusedActive Low
0x4000000UnusedActive Low
0x8000000UnusedActive Low
0x10000000UnusedActive Low
0x20000000UnusedActive Low
0x40000000UnusedActive Low
0x80000000UnusedActive Low
0x120000-0x1200034Write NOP(// Volume control in low byte)
0x120004-0x1200074Writehvysmsh_eeprom_w
0x120008-0x12000B4Write NOP(// IRQ ack?)
0x12000C-0x12000F4Writehvysmsh_oki_0_bank_w
0x140000-0x1400034Device Read/Write 8-bitoki1, okim6295_device, read, write, 0x000000ff
0x160000-0x1600034Device Read/Write 8-bitoki2, okim6295_device, read, write, 0x000000ff
0x180000-0x18001F32Device Read/Writetilegen1, deco16ic_device, pf_control_dword_r, pf_control_dword_w
0x190000-0x191FFF8192Device Read/Writetilegen1, deco16ic_device, pf1_data_dword_r, pf1_data_dword_w
0x194000-0x195FFF8192Device Read/Writetilegen1, deco16ic_device, pf2_data_dword_r, pf2_data_dword_w
0x1A0000-0x1A0FFF4096Read/Writewcvol95_pf1_rowscroll_r, wcvol95_pf1_rowscroll_w
0x1A4000-0x1A4FFF4096Read/Writewcvol95_pf2_rowscroll_r, wcvol95_pf2_rowscroll_w
0x1C0000-0x1C0FFF4096RAM Write, Shareddeco156_nonbuffered_palette_w, paletteram
0x1D0010-0x1D002F32Read NOP(// Check for DMA complete?)
0x1E0000-0x1E1FFF8192Read/Writewcvol95_spriteram_r, wcvol95_spriteram_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:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288mbg-00.9aCRC(7d94eb16) (Fluke: 1B3F)
0x0000-0x7FFFF524288mbg-00.9aCRC(7d94eb16) (Fluke: 1B3F)
0x0000-0x7FFFF524288mbg-00.9aCRC(7d94eb16) (Fluke: 1B3F)
Memory Area:oki1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288mbg-03.10kCRC(4b809420) (Fluke: 8A86)
0x0000-0x7FFFF524288mbg-03.10kCRC(4b809420) (Fluke: 8A86)
0x0000-0x7FFFF524288mbg-03.10kCRC(4b809420) (Fluke: 8A86)
Memory Area:oki2
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFFF2097152mbg-04.11kCRC(2281c758) (Fluke: 79E8)
0x0000-0x1FFFFF2097152mbg-04.11kCRC(2281c758) (Fluke: 79E8)
0x0000-0x1FFFFF2097152mbg-04.11kCRC(2281c758) (Fluke: 79E8)
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