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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.
Hard Head 2 (bootleg, 1991)
Memory Area:brickzn_io_map
Address RangeLengthFunctionDescription
0x00001Writebrickzn_disab_palram_w (// Disable Palette RAM)
0x00A11Writebrickzn_enab_palram_w (// Enable Palette RAM)
Memory Area:brickzn_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM(// ROM)
0x8000-0xBFFF16384ROM Bankbank1 (// Banked ROM)
0xC0401Writebrickzn_rombank_w (// ROM Bank)
0xC0601Writebrickzn_sprbank_w (// Sprite RAM Bank + Flip Screen + Protection)
0xC0A01Writebrickzn_multi_w (// Palette RAM Bank / Sound Latch / ...)
0xC0C01Writebrickzn_prot2_w (// Protection 2)
0xC1001Read PortP1 (// P1 (Buttons))
0xC1011Read PortP2 (// P2 (Buttons))
0xC1021Read PortDSW1 (// DSW 1)
0xC1031Read PortDSW2 (// DSW 2)
0xC1081Read PortSPIN1 (// P1 (Spinner))
0xC10C1Read PortSPIN2 (// P2 (Spinner))
0xC1401Readbrickzn_cheats_r (// Cheats / Debugging Inputs)
0xC600-0xC7FF512Read/Write, Sharedbanked_paletteram_r, brickzn_banked_paletteram_w, paletteram (// Palette (Banked))
0xC800-0xDFFF6144RAM, Sharedwram (// Work RAM)
0xE000-0xFFFF8192Read/Writesuna8_banked_spriteram_r, suna8_banked_spriteram_w (// Sprites (Banked))
Memory Area:brickzn_pcm_io_map
Address RangeLengthFunctionDescription
0x00001Device Writeldac, dac_byte_interface, write
0x00001Device Readsoundlatch2, generic_latch_8_device, read (// From Sound CPU)
0x00011Device Writerdac, dac_byte_interface, write
0x00021Device Writeldac2, dac_byte_interface, write
0x00031Device Writerdac2, dac_byte_interface, write
Memory Area:brickzn_pcm_map
Address RangeLengthFunctionDescription
0x0000-0xFFFF65536ROM(// ROM)
Memory Area:brickzn_sound_map
Address RangeLengthFunctionDescription
0x0000-0xBFFF49152ROM(// ROM)
0xC000-0xC0012Device Writeymsnd, ym3812_device, write
0xC002-0xC0032Device Writeaysnd, ay8910_device, address_data_w
0xE000-0xE7FF2048RAM(// RAM)
0xF0001Device Writesoundlatch2, generic_latch_8_device, write (// To PCM CPU)
0xF8001Device Readsoundlatch, generic_latch_8_device, read (// From Main CPU)
Memory Area:brickzn11_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM(// ROM)
0x8000-0xBFFF16384ROM Bankbank1 (// Banked ROM)
0xC0001Device Writesoundlatch, generic_latch_8_device, write (// To Sound CPU)
0xC0401Writebrickzn_sprbank_w (// Sprite RAM Bank + Flip Screen + Protection)
0xC0601Writebrickzn_rombank_w (// ROM Bank)
0xC0801Writebrickzn_leds_w (// Leds)
0xC0A01Writebrickzn_palbank_w (// Palette RAM Bank)
0xC1001Read PortP1 (// P1 (Buttons))
0xC1011Read PortP2 (// P2 (Buttons))
0xC1021Read PortDSW1 (// DSW 1)
0xC1031Read PortDSW2 (// DSW 2)
0xC1081Read PortSPIN1 (// P1 (Spinner))
0xC10C1Read PortSPIN2 (// P2 (Spinner))
0xC1401Readbrickzn_cheats_r (// Cheats / Debugging Inputs)
0xC600-0xC7FF512Read/Write, Sharedbanked_paletteram_r, brickzn_banked_paletteram_w, paletteram (// Palette (Banked))
0xC800-0xDFFF6144RAM, Sharedwram (// Work RAM)
0xE000-0xFFFF8192Read/Writesuna8_banked_spriteram_r, suna8_banked_spriteram_w (// Sprites (Banked))
Memory Area:hardhea2_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM(// ROM)
0x8000-0xBFFF16384ROM Bankbank1 (// Banked ROM)
0xC0001Read PortP1 (// P1 (Inputs))
0xC0011Read PortP2 (// P2)
0xC0021Read PortDSW1 (// DSW 1)
0xC0031Read PortDSW2 (// DSW 2)
0xC0801Read PortBUTTONS (// vblank?)
0xC2001Writehardhea2_spritebank_w (// Sprite RAM Bank)
0xC2801Writehardhea2_rombank_w (// ROM Bank (?mirrored up to c2ff?))
0xC28C1Writehardhea2_rombank_w
0xC3001Writehardhea2_flipscreen_w (// Flip Screen)
0xC3801Writehardhea2_nmi_w (// ? NMI related ?)
0xC4001Writehardhea2_leds_w (// Leds + Coin Counter)
0xC4801Write NOP(// ~ROM Bank)
0xC5001Device Writesoundlatch, generic_latch_8_device, write (// To Sound CPU)
0xC5071Writehardhea2_rambank_1_w
0xC5081Writehardhea2_spritebank_0_w
0xC50F1Writehardhea2_spritebank_1_w
0xC5221Writehardhea2_rambank_0_w
0xC5281Writehardhea2_rambank_0_w
0xC5331Writehardhea2_rambank_0_w
0xC5561Writehardhea2_rambank_1_w
0xC5601Writehardhea2_rambank_1_w
0xC600-0xC7FF512RAM Device Write, Sharedpalette, palette_device, write, palette (// Palette)
0xC800-0xDFFF6144RAM Bankbank2 (// Work RAM (Banked))
0xE000-0xFFFF8192Read/Writesuna8_banked_spriteram_r, suna8_banked_spriteram_w (// Sprites (Banked))
 

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
0x0000-0x7FFF3276814.C6CRC(79a3be51) (Fluke: 1133)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF655361.N1CRC(7e7b7a58) (Fluke: 857C)
0x10000-0x1FFFF655362.O1CRC(303ec802) (Fluke: 6899)
0x20000-0x2FFFF655363.Q1CRC(3353b2c7) (Fluke: 0C21)
0x30000-0x3FFFF655364.N3CRC(dbc1f9c1) (Fluke: EED4)
0x40000-0x4FFFF655365.N4CRC(f738c0af) (Fluke: B590)
0x50000-0x5FFFF655366.O4CRC(bf90d3ca) (Fluke: 4565)
0x60000-0x6FFFF655367.Q4CRC(992ce8cb) (Fluke: 46D5)
0x70000-0x7FFFF655368.N6CRC(359597a4) (Fluke: 090F)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF655369.F5CRC(3f31ece3)
0x10000-0x1FFFF6553610.H5CRC(98b34813)
0x20000-0x2FFFF6553611.I5CRC(12af8f8e) (Fluke: 17B4)
0x30000-0x3FFFF6553612.F7CRC(35d13212) (Fluke: FE3E)
0x40000-0x4FFFF6553613.H7CRC(044f956f)
Memory Area:pcm
Address RangeLengthLabel/LocationDescription
0x0000-0xFFFF6553615.M10CRC(bcbd88c3) (Fluke: EE78)
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