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CopyBits(x,p,n,y)
copy n LSBs from y to x starting LSB at 'p'th position.
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Answer Posted / rakesh
It should be p--, not p++. for example y = 217 (11011001)
and you want to extract the least 4 SB then n = 4 and p = 3
(remember the number start from 0 to 7 in memory). After
executing this you will get x = 9 i.e 1001.
t=0;
for(i=n; i>0; i--)
{
t |= (1<<p);
p--;
}
x=x&~t;
t=t&y;
x=x|t;
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