Use a minimal number of DLX instructions to perform each of the following tasks:a) Establish a constant of value (227 + 411 + 83) in r5. Hint: use hex instead of decimal and use lhiinstruction.b) Copy the lower half word (an unsigned 16-bit value) of r3 into a 32-bit value in r7, without usingload/store instructions. Hint: use shift instructions.c) Branch to L1 if the sum of r1, r2 and r3 is smaller than the word value in memory location x2a0688;otherwise, continue to the next instruction