3. ( 50 points) Write a MIPS assembly program that rearranges the byte positions in a register as followings: MSB byte to second LSB, the next MSB to MSB, and second LSB to second MSB. For example, the 4-byte word, 0ABCD9876, stored in register \$t0 becomes 0xCD98AB76 after executing the program. Assume the MIPS is an little-endian computer