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How does this milw0rm heap spraying exploit work?
...e chunk, the probability of jumping there is high). When we jump there the CPU will keep executing or cl, [edx] instructions until in reaches the beginning of shellcode that's put in memory.
I've disassembled the shellcode:
00000000 C9 leave
00000001 2B1F sub ebx,[edi...
What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...intrinsics like ARM GCC's __clz (no header needed), or x86's _lzcnt_u32 on CPUs that support the lzcnt instruction. (Beware that lzcnt decodes as bsr on older CPUs instead of faulting, which gives 31-lzcnt for non-zero inputs.)
There's unfortunately no way to portably take advantage of the various...
How to set a Timer in Java?
..., since the while loop constantly runs and checks for stuff... bad for the cpu and bad for the battery life time.
– Infinite
Jul 2 '13 at 18:49
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What is the memory consumption of an object in Java?
... memory alignment done by a particular JVM implementation for a particular CPU type. It looks like a Long is 8 bytes of Object overhead, plus 8 bytes more for the actual long value. In contrast, Integer had an unused 4-byte hole, most likely because the JVM I use forces object alignment on an 8-byte...
Method names for getting data [closed]
...re lengthy access that involves transfer of data from place to place (a-la CPU fetching) or database fetching. For instance, Hibernate's query language has a Fetch construct. Developers often use methods based on their expectations of the name rather than by reading documentation so avoiding sending...
The provider is not compatible with the version of Oracle client
...ad no issue since moving over to it / you can set your projects back to AnyCPU etc and it works great :)
– Tod Thomson
Nov 28 '13 at 5:58
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Array.Copy vs Buffer.BlockCopy
...ood performance is almost surely due to locality of reference exploited by CPU L1/L2/L3 memory caching in conjunction with no method call overhead.
For double buffers on 32-bit machines only: The explicit loop copy routine is better than both alternatives for all buffer sizes tested up to 100k. Th...
What is the difference between _tmain() and main() in C++?
...ed as the pair of bytes \0 followed by the ASCII value.
And since the x86 CPU is little-endian, the order of these bytes are swapped, so that the ASCII value comes first, then followed by a null byte.
And in a char string, how is the string usually terminated? Yep, by a null byte. So your program ...
Build an iOS app without owning a mac? [closed]
...t may be in for example Security -> Virtualization or in Advanced -> CPU Setup. If you can't find any of these options, search Google for enable virtualization (the kind of computer you have). Don't change anything in the BIOS just like that at random because otherwise it could cause problems ...
Are list-comprehensions and functional functions faster than “for loops”?
...ts in this case with Python 3.6.1, Ubuntu 14.04, Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz
0:00:00.257703 #Reduce
0:00:00.184898 #For loop
0:00:00.031718 #Map
0:00:00.212699 #List comprehension
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