1. (5 points) Write a program to calculate using this boolean formula: ((not A) and B) or (not (A xor B)) A and B are the bit strings in $5 and $6. Put the final result bit string in register $7. The initial two instructions are given: ori S5, $0, 0x9 ori $6, $0,0x5 (You cannot use not instruction, but you can use nor)