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SEH stack 结构探索（1）--- 从 SEH 链的最底层（线程第1个SEH结构）说起 -...
...word ptr [ntdll32!__security_cookie (77822088)]
7774dd46 3145fc xor dword ptr [ebp-4],eax
7774dd49 33c5 xor eax,ebp
7774dd4b 50 push eax
7774dd4c 8965e8 mov dword ptr [ebp-18h],esp
7774dd4f ff75f8 push dword ptr [ebp-8]
...
Windows x64编程中寄存器的使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...TING, FILE_ATTRIBUTE_NORMAL, NULL);
000000013F79157D 45 33 ED xor r13d,r13d
000000013F791580 4C 8B E1 mov r12,rcx
000000013F791583 4C 89 6C 24 30 mov qword ptr [rsp+30h],r13 // 第 7 个参数
000000013F791588 45 8D 45 01 ...
What is Bit Masking?
...ue
Bitwise ORing in order to set a subset of the bits in the value
Bitwise XORing in order to toggle a subset of the bits in the value
Below is an example of extracting a subset of the bits in the value:
Mask: 00001111b
Value: 01010101b
Applying the mask to the value means that we want to cl...
Fastest hash for non-cryptographic uses?
...33be207f14eeab8b
sha1: 0.07331 417a9e5c9ac7c52e32727cfd25da99eca9339a80
xor: 0.65218 119
xor2: 0.29301 134217728
add: 0.57841 1105
And the code used to generate this is:
$loops = 100000;
$str = "ana are mere";
echo "<pre>";
$tss = microtime(true);
for($i=0; $i<$loop...
二维码的生成细节及原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...主要通过BCH Code来计算
然后15个bits还要与101010000010010做XOR操作。这样就保证不会因为我们选用了00的纠错级别和000的Mask，从而造成全部为白色，这会增加我们的扫描器的图像识别的困难。
下面是一个示例：
关于Error Correctio...
What is the advantage of GCC's __builtin_expect in if else statements?
... 83 ec 08 sub $0x8,%rsp
4: 31 ff xor %edi,%edi
6: e8 00 00 00 00 callq b <main+0xb>
7: R_X86_64_PC32 time-0x4
b: 48 85 c0 test %rax,%rax
e: 75 0a jne ...
jQuery OR Selector?
...
The term 'xor' (exclusive or) would be the accurate term, but often people search for or when looking for xor, as xor is generally, in common terms, a specific type of 'or'.
– liljoshu
Jan 23 '19 ...
Background color of text in SVG
...od-color="yellow"/>
<feComposite in="SourceGraphic" operator="xor" />
</filter>
</defs>
<text filter="url(#solid)" x="20" y="50" font-size="50">solid background</text>
</svg>
...
How do the likely/unlikely macros in the Linux kernel work and what is their benefit?
... 83 ec 08 sub $0x8,%rsp
4: 31 ff xor %edi,%edi
6: e8 00 00 00 00 callq b <main+0xb>
7: R_X86_64_PC32 time-0x4
b: 48 85 c0 test %rax,%rax
e: 75 14 jne ...
Can I catch multiple Java exceptions in the same catch clause?
...
XOR sign ( I ) is not the same as OR ( || ), A | B means either A or B but not both A || B means either A or B or both so as for exceptions it is either exceptionA or exceptionB but not both at the same time. this is why the...