Interested to Buy Any Domain ? << Click Here >> for more details...
CopyBits(x,p,n,y)
copy n LSBs from y to x starting LSB at 'p'th position.
- 9 Answers
- 12882 Views
- Adobe, I also Faced
- E-Mail Answers
Answer Posted / angad
t=0;
for(i=n; i>0; i--)
{
t|=(1<<p);
p++;
}
x=x&~t
t=t&(y<<p);
x=x|t;
}
x=10100110
y=11110111
let,p=3,n=4
after for loop, t=01111000 - mask for the n(=4) bits starting from the p(=3) bit that need to be altered in x
x=x&~t;
x =10100110
~t=10000111
ANDing clears the 4 bits to zero(bits 3-6)
x=1 0000 111
we need to extract the 1st n(=4) bits out of y , and shift them left to align them against the n(=4) bits of x we need to alter, therefore, left shift y by p(=3)
t=t&(y<<p)
y<<p = 1 0111 000
t = 0 1111 000
AND=>t = 0 0111 000
now x = 1 0000 111
t = 0 0111 000
x=x|t =>1 0111 111
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
What is volatile c?
What are global variables?
program for reversing a selected line word by word when multiple lines are given without using strrev
What is FIFO?
Can we change the value of constant variable in c?
What is a loop?
What do you mean by a local block?
What does & mean in scanf?
What is restrict keyword in c?
Disadvantages of C language.
A SIMPLE PROGRAM OF GRAPHICS AND THEIR OUTPUT I WANT SEE WAHAT OUTOUT OF GRAPHICS PROGRAM
Write a program in c to replace any vowel in a string with z?
What is ## preprocessor operator in c?
What is huge pointer in c?
What is the use of volatile?
