Search

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.
Net Wars (Orca (Esco Trading Co license), 1983)
Memory Area:espial_map
Address RangeLengthFunctionDescription
0x0000-0x4FFF20480ROM
0x5800-0x5FFF2048RAM
0x60811Read PortIN0
0x0000EasyActive High
0x0002HardActive High
0x0010UnknownActive High
0x0020UnknownActive High
0x0040UnknownActive High
0x0080UnknownActive High
0x60821Read PortDSW1
0x00003Active High
0x00014Active High
0x00025Active High
0x00036Active High
0x00142C_1CActive High
0x00183C_2CActive High
0x00001C_1CActive High
0x00041C_2CActive High
0x00081C_3CActive High
0x000c1C_4CActive High
0x00101C_6CActive High
0x001cFree_PlayActive High
0x000020k and 50kActive High
0x002040k and 70kActive High
0x0040UprightActive High
0x0000CocktailActive High
0x0080NoActive High
0x0000YesActive High
0x60831Read PortIN1
0x0001Start 1Active High
0x0002Start 2Active High
0x0004Joystick LeftActive High
0x0008Joystick RightActive High
0x0010Joystick UpActive High
0x0020Joystick DownActive High
0x0040Joystick DownActive High
0x0080UnknownActive High
0x60841Read PortIN2
0x0001UnknownActive High
0x0002Coin 1Active High
0x0004UnknownActive High
0x0008Joystick RightActive High
0x0010Joystick UpActive High
0x0020Button 1Active High
0x0040Button 1Active High
0x0080Joystick LeftActive High
0x60901Device Read, Writesoundlatch2, generic_latch_8_device, read, espial_master_soundlatch_w
0x70001Device Read/Writewatchdog, watchdog_timer_device, reset_r, reset_w
0x71001Writeespial_master_interrupt_mask_w
0x72001Writeespial_flipscreen_w
0x8000-0x801F32RAM, Sharedspriteram_1
0x8020-0x803F32Read Only
0x8400-0x87FF1024RAM Write, Sharedespial_videoram_w, videoram
0x8800-0x880F16Write Only, Sharedspriteram_3
0x8C00-0x8FFF1024RAM Write, Sharedespial_attributeram_w, attributeram
0x9000-0x901F32RAM, Sharedspriteram_2
0x9020-0x903F32RAM Write, Sharedespial_scrollram_w, scrollram
0x9400-0x97FF1024RAM Write, Sharedespial_colorram_w, colorram
0xC000-0xCFFF4096ROM
Memory Area:espial_sound_io_map
Address RangeLengthFunctionDescription
0x0000-0x00012Device Writeaysnd, ay8910_device, address_data_w
Memory Area:espial_sound_map
Address RangeLengthFunctionDescription
0x0000-0x1FFF8192ROM
0x2000-0x23FF1024RAM
0x40001Writeespial_sound_nmi_mask_w
0x60001Device Read, Device Writesoundlatch, generic_latch_8_device, read, soundlatch2, generic_latch_8_device, write
Memory Area:netwars_map
Address RangeLengthFunctionDescription
0x0000-0x3FFF16384ROM
0x5800-0x5FFF2048RAM
0x60811Read PortIN0
0x0000EasyActive High
0x0002HardActive High
0x0010UnknownActive High
0x0020UnknownActive High
0x0040UnknownActive High
0x0080UnknownActive High
0x60821Read PortDSW1
0x00003Active High
0x00014Active High
0x00025Active High
0x00036Active High
0x00142C_1CActive High
0x00183C_2CActive High
0x00001C_1CActive High
0x00041C_2CActive High
0x00081C_3CActive High
0x000c1C_4CActive High
0x00101C_6CActive High
0x001cFree_PlayActive High
0x000020k and 50kActive High
0x002040k and 70kActive High
0x0040UprightActive High
0x0000CocktailActive High
0x0080NoActive High
0x0000YesActive High
0x60831Read PortIN1
0x0001Start 1Active High
0x0002Start 2Active High
0x0004Joystick LeftActive High
0x0008Joystick RightActive High
0x0010Joystick UpActive High
0x0020Joystick DownActive High
0x0040Joystick DownActive High
0x0080UnknownActive High
0x60841Read PortIN2
0x0001UnknownActive High
0x0002Coin 1Active High
0x0004UnknownActive High
0x0008Joystick RightActive High
0x0010Joystick UpActive High
0x0020Button 1Active High
0x0040Button 1Active High
0x0080Joystick LeftActive High
0x60901Device Read, Writesoundlatch2, generic_latch_8_device, read, espial_master_soundlatch_w
0x70001Device Read/Writewatchdog, watchdog_timer_device, reset_r, reset_w
0x71001Writeespial_master_interrupt_mask_w
0x72001Writeespial_flipscreen_w
0x8000-0x801F32RAM, Sharedspriteram_1
0x8000-0x87FF2048RAM Write, Sharedespial_videoram_w, videoram
0x8800-0x8FFF2048RAM Write, Sharedespial_attributeram_w, attributeram
0x8800-0x880F16RAM, Sharedspriteram_3
0x9000-0x97FF2048RAM Write, Sharedespial_colorram_w, colorram
0x9000-0x901F32RAM, Sharedspriteram_2
0x9020-0x903F32RAM Write, Sharedespial_scrollram_w, scrollram
 

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
0x0000-0x0FFF4096netw1.4nCRC(53939e16) (Fluke: 6CE5)
0x1000-0x1FFF4096netw2.4rCRC(c096317a) (Fluke: 11DA)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192netw8.4bCRC(2320277e) (Fluke: 44CD)
0x2000-0x3FFF8192netw7.4aCRC(25cc5b7f) (Fluke: D25F)
Memory Area:gfx2
Address RangeLengthLabel/LocationDescription
0x0000-0x0FFF4096netw10.4eCRC(87b65625) (Fluke: 14CB)
0x1000-0x1FFF4096netw9.4dCRC(830d0218) (Fluke: E899)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFF8192netw3.4fCRC(8e782991) (Fluke: DE41)
0x2000-0x3FFF8192netw4.4hCRC(6e219f61) (Fluke: 80F8)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256mmi6301.1fCRC(f3ae1fe2),palette low 4 bits (Fluke: C874)
0x0100-0x01FF256mmi6301.1hCRC(c44c3771),palette high 4 bits (Fluke: B04C)
© Copyright 2009-2025, ClassicSoft, LLC. All rights reserved
Powered by the ClassicSoft Web Content Framework V3