Difference between revisions of "Endian"

From Cheat Engine
Jump to navigation Jump to search
(Cheat Engine and Big Endian)
(fAobgVUVIoj)
Line 1: Line 1:
Little Endian:
+
Hey, that's poerwful. Thanks for the news.
Values are written with the least significant bit first followed by more significant bytes.
 
 
 
Big Endian:
 
The most significant byte is written first, followed by lesser significant bytes.
 
 
 
 
 
Example with the value 300 (0x0000012c):
 
 
 
Little Endian: 0x2c 0x01 0x00 0x00
 
 
 
Big Endian: 0x00 0x00 0x01 0x2c
 
 
 
 
 
x86 uses the Little Endian way of notation, the only times you can encounter it on a computer is when using an emulator that doesn't do the swap automatically (Some emulators do the conversion of Big Endian to Little Endian internally to speed up emulation).
 
 
 
 
 
 
 
== Cheat Engine and Big Endian ==
 
Cheat Engine currently does not support Big Endian by default, but it is possible to write a custom scan script that converts the value to be checked to Little Endian before it is compared against user input.<br>
 
Useful assembler instructions here are xchg for 16-bit values and bswap for 32-bit values
 
 
 
Another method that might be easier, would be to use 1 byte scan values only.
 

Revision as of 19:04, 21 January 2012

Hey, that's poerwful. Thanks for the news.