Repeat the question above for the ‘add to zero’ instruction (addz). Below is the syntax and the encoding. The instruction below computes (t1+t2) and stores the result in register t0 and also in the memory at address zero. The ‘addz’ instruction always uses address zero in the memory.

addz $t0, $t1, $t2

Unique

T1

T2

T0

0

0

Opcode rs rt rd shamt funct

a) Give the functional form of the instruction based on the register names.

b) Give the functional form based on the instruction fields.

c) Draw the changes on the datapath diagram.

d) Give the values of the control signals.

1)consider the following code snippet: #ifndef book_h#define book_hconst double max_cost = 1000.0; class book{public: book(); book(double new_cost); void set_cost(double new_cost); double get_cost() const; private: double cost; }; double calculate_terms(book bk); #endifwhich of the following is correct? a)the header file is correct as given.b)the definition of max_cost should be removed since header files should not contain constants.c)the definition of book should be removed since header files should not contain class definitions.d)the body of the calculate_terms function should be added to the header file.

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