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Is multiplication and division using shift operators in C actually faster?
... optimised approach
#define N 0
int x; .word x xor registerA, registerA
x *= N; move x -> registerA
move x -> registerB
A = B * immediate(0)
store registerA -> x
...............do something more with x...
PHP 5 disable strict standards error
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I want to point out that using ^ ("xor") rather than & ~ ("and not") is a bad idea! ^ depends on the assumption that e.g. E_STRICT is part of E_ALL and always will be part of it. This is bad because E_ALL did change in the past (E_STRICT wasn't past of it,...
Write bytes to file
... 6 bytes into a byte array and writes it to another byte array. It does an XOR operation with the bytes so that the result written to the file is the same as the original starting values. The file is always 6 bytes in size, since it writes at position 0.
using System;
using System.IO;
namespace Co...
如何在Visual Studio中运行和调试汇编代码 - 其他 - 清泛IT社区，为创新赋能！
...p;__asm{
xor eax, eax
mov a, eax
}
printf("hello:%d\n", a);
...
How do I achieve the theoretical maximum of 4 FLOPs per cycle?
...pd(x);
r1 = _mm_set1_pd(y);
r8 = _mm_set1_pd(-0.0);
r2 = _mm_xor_pd(r0,r8);
r3 = _mm_or_pd(r0,r8);
r4 = _mm_andnot_pd(r8,r0);
r5 = _mm_mul_pd(r1,_mm_set1_pd(0.37796447300922722721));
r6 = _mm_mul_pd(r1,_mm_set1_pd(0.24253562503633297352));
r7 = _mm_mul_pd(r1,_mm_set...
Check if at least two out of three booleans are true
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Just for the sake of using XOR to answer a relatively straight-forward problem...
return a ^ b ? c : a
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What is the role of the bias in neural networks? [closed]
...g two dimensions to one dimension, as in reproducing the AND or the OR (or XOR) functions, you can think of a neuronal network as doing the following:
On the 2d plane mark all positions of input vectors. So, for boolean values, you’d want to mark (-1,-1), (1,1), (-1,1), (1,-1). What your ANN now ...
maximum value of int
...which is now set to maximum positive value.
We could also use a mask and xor but then we had to know the exact bitsize of the variable. With shifting in bits front, we don't have to know at any time how many bits the int has on machine or compiler nor need we include extra libraries.
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Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
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Another related trick is to use XOR EAX, EAX because XOR RAX, RAX would need an REX prefix.
– Neil
Oct 2 '13 at 9:12
3
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filename and line number of python script
..., '__rpow__', '__rrshift__', '__rshift__', '__rsub__', '__rtruediv__', '__rxor__', '__setattr__', '__sizeof__', '__str__', '__sub__', '__subclasshook__', '__truediv__', '__trunc__', '__xor__', 'bit_length', 'conjugate', 'denominator', 'imag', 'numerator', 'real']
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