Question

Using bitwise operations, we want to set to one bit positions 1 and 2 while leaving all the other bit positions alone. In the space below, enter the bitwise operation (AND, OR, or XOR) to do this. Type the correct answer as "AND", "OR", or "XOR" without the quotation marks in this space. In the space below, enter the correct 8-bit mask to perform this operation. Use the figure below to identify the bit positions for your answer. For the autograder to work, please enter your answer as an eight bit binary value. Do not add any punctuation, spaces, or other identifiers.

Answer 1

The correct bitwise operation to set bit positions 1 and 2 to one is OR, and the 8-bit mask needed for this operation is 00000110.

Step-by-step explanation:

To set bit positions 1 and 2 to one, while keeping other bits unchanged, we would use the OR bitwise operation. This operation is chosen because it allows bits that are set to 1 in either the original number or the mask to result in a 1. To accomplish this, we need to use a mask with bits 1 and 2 set to one. Considering bit positions start at 0 from the right, the 8-bit binary mask required is 00000110. This way, when the OR operation is performed between any 8-bit number and the mask, it will set bits 1 and 2 to one without altering the other bit positions