1. An 8-bit register contains the binary value 2_1001.1100 where the 0th bit (least significant) is 0 and the 7th bit (most significant) is 1. Note the dot (.) is added for readability of the binary value should be ignored. For a) and b) below, determine the 8-bit mask value and final register value after executing the mask: a. AND mask that will clear all even bits (assume bit-0 is even) b. OR mask that will set bits 3:0 (3 through 0) c. If we needed to force bits 5:4 (5 and 4) to logic low, what mask value and operation would we need to use