Question

Suppose r0 = 0 x OFOFOFOF, and rl = 0 x FEDCBA98, find the result of the following operations.

EOR r3, r1, r0
r3 = _____

Answer 1

The EOR operation compares the corresponding bits of two binary numbers. Convert r0 and r1 to binary, perform the EOR operation, and convert the result back to hexadecimal to obtain the final answer, E2C4A08.

Step-by-step explanation:

The EOR operation, also known as the bitwise exclusive OR operation, compares the corresponding bits of two binary numbers. In this case, r1 and r0 are hexadecimal numbers, which need to be converted to binary for the EOR operation. Once converted to binary, the EOR operation is performed by comparing each bit of r1 with the corresponding bit of r0. The resulting binary number is then converted back to hexadecimal to obtain the final result.

For example, let's convert r0 and r1 to binary:

r0 = 0xFEDCBA98 = 1111 1110 1101 1100 1011 1010 1001 1000

r1 = 0xOFOFOFOF = 1111 0000 1111 0000 1111 0000 1111 0000

Now, perform the EOR operation:

Binary result = 0000 1110 0010 1100 0100 1010 0000 1000

Converting the binary result back to hexadecimal gives us: E2C4A08.