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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.
Heart Attack (Century Electronics, 1983)
Memory Area:cvs_dac_cpu_map
Address RangeLengthFunctionDescription
0x0000-0x0FFF4096ROM
0x1000-0x107F128RAM
0x18001Device Readsoundlatch, generic_latch_8_device, read
0x18401Device Writedac1, dac_byte_interface, write
0x1880-0x18834Write, Sharedcvs_4_bit_dac_data_w, 4bit_dac
0x1884-0x18874Write, Sharedcvs_unknown_w, dac3_state (/* ???? not connected to anything */)
Memory Area:cvs_main_cpu_io_map
Address RangeLengthFunctionDescription
0x00001Read PortSENSE
0x00001Read/Writecvs_collision_clear, cvs_video_fx_w
0x0000-0x00FF256Read, Writecvs_input_r, cvs_scroll_w
0x00001Read, Writecvs_collision_r, audio_command_w
Memory Area:cvs_main_cpu_map
Address RangeLengthFunctionDescription
0x0000-0x13FF5120ROM
0x1400-0x14FF256Mirror, Read/Write, Shared0x6000, cvs_bullet_ram_or_palette_r, cvs_bullet_ram_or_palette_w, bullet_ram
0x1500-0x15FF256Mirror, Read/Write0x6000, cvs_s2636_2_or_character_ram_r, cvs_s2636_2_or_character_ram_w
0x1600-0x16FF256Mirror, Read/Write0x6000, cvs_s2636_1_or_character_ram_r, cvs_s2636_1_or_character_ram_w
0x1700-0x17FF256Mirror, Read/Write0x6000, cvs_s2636_0_or_character_ram_r, cvs_s2636_0_or_character_ram_w
0x1800-0x1BFF1024Mirror, Read/Write, Shared0x6000, cvs_video_or_color_ram_r, cvs_video_or_color_ram_w, video_ram
0x1C00-0x1FFF1024Mirror, RAM0x6000,
0x2000-0x33FF5120ROM
0x4000-0x53FF5120ROM
0x6000-0x73FF5120ROM
Memory Area:cvs_speech_cpu_io_map
Address RangeLengthFunctionDescription
0x00001Readtms_clock_r
Memory Area:cvs_speech_cpu_map
Address RangeLengthFunctionDescription
0x0000-0x07FF2048ROM
0x1D001Writecvs_speech_rom_address_lo_w
0x1D401Writecvs_speech_rom_address_hi_w
0x1D801Readcvs_speech_command_r
0x1DDC-0x1DDE3Write, Sharedcvs_tms5110_ctl_w, tms5110_ctl
0x1DDF1Writecvs_tms5110_pdc_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:audiocpu
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096ha-sdp1.binCRC(b9c466a0) (Fluke: C2AB)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048ha-cp1.binCRC(2d0f6d13) (Fluke: 93F7)
0x0800-0x0FFF2048ha-cp2.binCRC(7f5671bd) (Fluke: 21A1)
0x1000-0x17FF2048ha-cp3.binCRC(35b05ab4) (Fluke: 0C80)
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