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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.
Hot Shocker (E.G. Felaco (Domino license), 1982)
Memory Area:hotshock_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0x4000-0x47FF2048RAM
0x4800-0x4BFF1024RAM Write, Sharedgalaxold_videoram_w, videoram
0x4C00-0x4FFF1024Readgalaxold_videoram_r
0x5000-0x503F64RAM Write, Sharedgalaxold_attributesram_w, attributesram
0x5040-0x505F32RAM, Sharedspriteram
0x5060-0x507F32RAM, Sharedbulletsram
0x5080-0x50FF128RAM
0x60001Writegalaxold_coin_counter_2_w
0x60021Writegalaxold_coin_counter_1_w
0x60041Writehotshock_flip_screen_w
0x60051Writegalaxold_coin_counter_0_w
0x60061Writegalaxold_gfxbank_w
0x68011Writegalaxold_nmi_enable_w
0x70001Device Writewatchdog, watchdog_timer_device, reset_w
0x80001Read Port, Device WriteIN0, soundlatch, generic_latch_8_device, write
0x0001Joystick UpActive High
0x0004Joystick DownActive High
0x0008Button 1Active High
0x0010Joystick RightActive High
0x0020Joystick LeftActive High
0x00c0UnknownActive High
0x80011Read PortIN1
0x0001UnknownActive High
0x0002UnknownActive High
0x0004Coin 1Active High
0x0008Coin 2Active High
0x0010Service 1Active High
0x0020UnknownActive High
0x0040Start 2Active High
0x0080Start 1Active High
0x80021Read PortIN2
0x00082C_1CActive High
0x00092C_2CActive High
0x00001C_1CActive High
0x000a2C_3CActive High
0x000b2C_4CActive High
0x00011C_2CActive High
0x000c2C_5CActive High
0x000d2C_6CActive High
0x00021C_3CActive High
0x000e2C_7CActive High
0x000f2C_8CActive High
0x00031C_4CActive High
0x00041C_5CActive High
0x00051C_6CActive High
0x00061C_7CActive High
0x00071C_8CActive High
0x00802C_1CActive High
0x00902C_2CActive High
0x00001C_1CActive High
0x00a02C_3CActive High
0x00b02C_4CActive High
0x00101C_2CActive High
0x00c02C_5CActive High
0x00d02C_6CActive High
0x00201C_3CActive High
0x00e02C_7CActive High
0x00f02C_8CActive High
0x00301C_4CActive High
0x00401C_5CActive High
0x00501C_6CActive High
0x00601C_7CActive High
0x00701C_8CActive High
0x80031Read PortIN3
0x00002Active High
0x00013Active High
0x00024Active High
0x00035Active High
0x0004EnglishActive High
0x0000ItalianActive High
0x000075000Active High
0x0008150000Active High
0x0010200000Active High
0x0018NoneActive High
0x0000OffActive High
0x0020OnActive High
0x0000OffActive High
0x0040OnActive High
0x0000UprightActive High
0x0080CocktailActive High
0x90001Writehotshock_sh_irqtrigger_w
Memory Area:hotshock_sound_io_map
Address RangeLengthFunctionDescription
0x00101Device Write8910.1, ay8910_device, address_w
0x00201Device Read/Write8910.1, ay8910_device, data_r, data_w
0x00401Device Read/Write8910.2, ay8910_device, data_r, data_w
0x00801Device Write8910.2, ay8910_device, address_w
Memory Area:scramble_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0x4000-0x47FF2048RAM
0x4800-0x4BFF1024RAM Write, Sharedgalaxold_videoram_w, videoram
0x4C00-0x4FFF1024Read/Writegalaxold_videoram_r, galaxold_videoram_w (/* mirror address */)
0x5000-0x503F64RAM Write, Sharedgalaxold_attributesram_w, attributesram
0x5040-0x505F32RAM, Sharedspriteram
0x5060-0x507F32RAM, Sharedbulletsram
0x5080-0x50FF128RAM
0x68011Writegalaxold_nmi_enable_w
0x68021Writegalaxold_coin_counter_w
0x68041Writegalaxold_stars_enable_w
0x68061Writegalaxold_flip_screen_x_w
0x68071Writegalaxold_flip_screen_y_w
0x70001Device Readwatchdog, watchdog_timer_device, reset_r
0x78001Device Readwatchdog, watchdog_timer_device, reset_r
0x8100-0x81034Device Read/Writeppi8255_0, i8255_device, read, write
0x0001Joystick UpActive High
0x0004Joystick DownActive High
0x0008Button 1Active High
0x0010Joystick RightActive High
0x0020Joystick LeftActive High
0x00c0UnknownActive High
0x8110-0x81134Device Readppi8255_0, i8255_device, read (/* mirror for Frog */)
0x0001Joystick UpActive High
0x0004Joystick DownActive High
0x0008Button 1Active High
0x0010Joystick RightActive High
0x0020Joystick LeftActive High
0x00c0UnknownActive High
0x8200-0x82034Device Read/Writeppi8255_1, i8255_device, read, write
Memory Area:scramble_sound_io_map
Address RangeLengthFunctionDescription
0x00101Device Write8910.1, ay8910_device, address_w
0x00201Device Read/Write8910.1, ay8910_device, data_r, data_w
0x00401Device Write8910.2, ay8910_device, address_w
0x00801Device Read/Write8910.2, ay8910_device, data_r, data_w
Memory Area:scramble_sound_map
Address RangeLengthFunctionDescription
0x0000-0x2FFF12288ROM
0x8000-0x83FF1024Write NOP, Sharedsoundram (/* only here to initialize pointer */)
0x8000-0x8FFF4096Read/Writescramble_soundram_r, scramble_soundram_w
0x9000-0x9FFF4096Writescramble_filter_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
0x0000-0x0FFF40966d.b3CRC(c5e02651)
0x1000-0x1FFF40967d.b4CRC(49dc113d)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF40964d.h3CRC(751c850e)
0x1000-0x1FFF40965d.h5CRC(fc74282e)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF40960d.l10CRC(3e8aeaeb)
0x1000-0x1FFF40961d.l9CRC(0eab3246)
0x2000-0x2FFF40962d.l8CRC(e646bde3)
0x3000-0x3FFF40963d.l7CRC(5bde9312) (Fluke: 429D)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x001F3218s030.1kCRC(4e3caeab) (Fluke: EC18)
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