(60 p). based on the lollowing assembly codes mov movi movi movi r2, r0 r4, 0x0010 r6, 0x48AC r7, 0x0001 LOOP: beq and srli srli r4, r0, END LOOP r5, r6, r7 r6, r6, 0x001 r4, r4, 0x001 beq r5, r7, LOOP addi br r2, r2, 0x0001 LOOP END LOOP: ret a) Describe the function of the above assembly codes. b) What the final value of r2? c) How many times did the program counter (PC) register change its valu (Assume the starting instruction address is 0x0000.)