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.
FAX (Exidy, 1983)
Memory Area:exidy_map
Address RangeLengthFunctionDescription
0x0000-0x03FF1024RAM
0x4000-0x43FF1024Mirror, RAM, Shared0x0400, , videoram
0x50001Mirror, Write Only, Shared0x003f, , sprite1_xpos
0x50401Mirror, Write Only, Shared0x003f, , sprite1_ypos
0x50801Mirror, Write Only, Shared0x003f, , sprite2_xpos
0x50C01Mirror, Write Only, Shared0x003f, , sprite2_ypos
0x51001Mirror, Read Port0x00fc, DSW
0x00068000Active High
0x000413000Active High
0x000218000Active High
0x000025000Active High
0x0060:32/:24Active High
0x0040:48/:36Active High
0x00201:04/:48Active High
0x00001:12/1:04Active High
0x0098CoinageActive High
0x00902C_1CActive High
0x0000Coin A 2C/1C Coin B 1C/3CActive High
0x00981C_1CActive High
0x0010Coin A 1C/1C Coin B 1C/4CActive High
0x0018Coin A 1C/1C Coin B 1C/5CActive High
0x00881C_2CActive High
0x00081 Coin/3 Credits 2C/7CActive High
0x00801C_4CActive High
0x51001Mirror, Write Only, Shared0x00fc, , spriteno
0x51011Mirror, Read Port0x00fc, IN0
0x51011Mirror, Write Only, Shared0x00fc, , sprite_enable
0x51031Mirror, Read0x00fc, exidy_interrupt_r
0x5210-0x52123Write Only, Sharedcolor_latch
0x52131Read PortIN2
0x00ffUnknownActive Low
Memory Area:fax_map
Address RangeLengthFunctionDescription
0x0400-0x07FF1024RAM
0x1A001Read PortIN4
0x000fUnusedActive Low
0x0010Button 4Active Low
0x0020Button 3Active Low
0x0040Button 2Active Low
0x0080Button 1Active Low
0x1C001Read PortIN3
0x0001Start 2Active Low
0x0002Start 1Active Low
0x000cUnusedActive Low
0x0010Button 4Active Low
0x0020Button 3Active Low
0x0040Button 2Active Low
0x0080Button 1Active Low
0x20001Writefax_bank_select_w
0x2000-0x3FFF8192ROM Bankbank1
0x5200-0x520F16Device Read/Writepia0, pia6821_device, read, write
0x5213-0x52175Write NOP(/* empty control lines on color/sound board */)
0x6000-0x6FFF4096RAM, Sharedcharacterram
0x8000-0xFFFF32768ROM
Memory Area:pepper2_map
Address RangeLengthFunctionDescription
0x4800-0x4FFF2048Read/Write NOP
0x5200-0x520F16Device Read/Writepia0, pia6821_device, read, write
0x6000-0x6FFF4096RAM, Sharedcharacterram
0x8000-0xFFFF32768ROM
Memory Area:venture_map
Address RangeLengthFunctionDescription
0x4800-0x4FFF2048RAM, Sharedcharacterram
0x5200-0x520F16Device Read/Writepia0, pia6821_device, read, write
0x8000-0xFFFF32768ROM
 

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
0x6800-0x6FFF2048fxa2-5a.16CRC(7c525aec) (Fluke: DC3B)
0x7000-0x77FF2048fxa2-6a.16CRC(2b3bfc44) (Fluke: 1262)
0x7800-0x7FFF2048fxa2-7a.16CRC(578c62b7) (Fluke: B3D9)
Memory Area:gfx1
Address RangeLengthLabel/LocationDescription
0x0000-0x07FF2048fxl1-11d.32CRC(62083db2) (Fluke: 2676)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x8000-0x8FFF4096fxl8-13a.32CRC(8e30bf6b) (Fluke: D8E0)
0x9000-0x9FFF4096fxl8-12a.32CRC(60a41ff1) (Fluke: 24AC)
0xA000-0xAFFF4096fxl8-11a.32CRC(2c9cee8a) (Fluke: 6FB2)
0xB000-0xBFFF4096fxl8-10a.32CRC(9b03938f) (Fluke: 050B)
0xC000-0xCFFF4096fxl8-9a.32CRC(fb869f62) (Fluke: 8233)
0xD000-0xDFFF4096fxl8-8a.32CRC(db3470bc) (Fluke: 2DC4)
0xE000-0xEFFF4096fxl8-7a.32CRC(1471fef5) (Fluke: 8868)
0xF000-0xFFFF4096fxl8-6a.32CRC(812e39f3) (Fluke: 1617)
0x10000-0x11FFF8192fxd-1c.64CRC(fd7e3137) (Fluke: 080D)
0x12000-0x13FFF8192fxd-2c.64CRC(e78cb16f) (Fluke: 0F14)
0x14000-0x15FFF8192fxd-3c.64CRC(57a94c6f) (Fluke: 09ED)
0x16000-0x17FFF8192fxd-4c.64CRC(9036c5a2) (Fluke: E1A9)
0x18000-0x19FFF8192fxd-5c.64CRC(38c03405) (Fluke: A6DA)
0x1A000-0x1BFFF8192fxd-6c.64CRC(f48fc308) (Fluke: F72D)
0x1C000-0x1DFFF8192fxd-7c.64CRC(cf93b924) (Fluke: 55EB)
0x1E000-0x1FFFF8192fxd-8c.64CRC(607b48da) (Fluke: 9955)
0x20000-0x21FFF8192fxd-1b.64CRC(62872d4f) (Fluke: CF6A)
0x22000-0x23FFF8192fxd-2b.64CRC(625778d0) (Fluke: CA7F)
0x24000-0x25FFF8192fxd-3b.64CRC(c3473dee) (Fluke: F359)
0x26000-0x27FFF8192fxd-4b.64CRC(e39a15f5) (Fluke: CB04)
0x28000-0x29FFF8192fxd-5b.64CRC(101a9d70) (Fluke: 1802)
0x2A000-0x2BFFF8192fxd-6b.64CRC(374a8f05) (Fluke: BC22)
0x2C000-0x2DFFF8192fxd-7b.64CRC(f7e7f824) (Fluke: 286E)
0x2E000-0x2FFFF8192fxd-8b.64CRC(8f1a5287) (Fluke: D50E)
0x30000-0x31FFF8192fxd-1a.64CRC(fc5e6344) (Fluke: 2537)
0x32000-0x33FFF8192fxd-2a.64CRC(43cf60b3) (Fluke: 0BFC)
0x34000-0x35FFF8192fxd-3a.64CRC(6b7d29cb) (Fluke: 712D)
0x36000-0x37FFF8192fxd-4a.64CRC(b9de3c2d) (Fluke: 5AFC)
0x38000-0x39FFF8192fxd-5a.64CRC(67285bc6) (Fluke: 36DD)
0x3A000-0x3BFFF8192fxd-6a.64CRC(ba67b7b2) (Fluke: B24D)
Memory Area:proms
Address RangeLengthLabel/LocationDescription
0x0000-0x00FF256fxl-6bCRC(e1e867ae)
0x0100-0x011F32fxl-8bCRC(0da1bdf9)
0x0120-0x013F32fxl-11bCRC(f76b4fcf) (Fluke: 4516)
0x0140-0x023F256fxl-12bCRC(6b5aa3d7)
© Copyright 2009-2025, ClassicSoft, LLC. All rights reserved
Powered by the ClassicSoft Web Content Framework V3