If the initial value of register A is A0, the value of register

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Direction: Consider the following assembly language program for a hypothetical processor. A, B and C are 8 registers. The meanings of various instructions are shown as comments.

If the initial value of register A is A₀, the value of register B after the program execution will be

1. The number of 0 bit in A₀
2. The number of 1 bit in A₀
3. A₀
4. B

Correct Option: B

Here value of B incremented by 1 only if carry flag is 1, carry is filled using right rotation, so B will store the no. of is in A₀. Hence (b) is correct option.