Answer:
Explanation:
Two ways of interpreting this question
(I) Shifting all the bits along with the choosen four,
in that case it will be i1>>2;
(ii) Just shifting the choosen four bits and keeping the remaining as it is.
It is equivalent to replacing the first four bits of i1 with i1>>2. let us call N = i1, and M = i1>>2.
max = ~0 //All one's
//1's through position 4, then all zeros
left = max - ((1<<4) - 1);
So we just have zeros between bits one to four and other are one.
Now final step;
(N&left) | m
A control system manages, commands, directs, or regulates the behavior of other devices or systems using control loops. It can range from a single home heating controller using a thermostat controlling a domestic boiler to large industrial control systems which are used for controlling processes or machines.
I would suggest the answer would be both A and D, mail merge is used to specify different field for different recipients.
