In: Computer Science
Explain the process of Rotate Left Carry and Rotate Right Carry
By the question I assume you are expecting explanation of RCL and RCR.
RCL - Rotate with Carry Left, RCR - Rotate with Carry Right
Explanation:
RCL - Rotate with Carry Left
The Rotate with Carry Left (RCL) instruction shifts all bits in the register or input operand specified. The carry flag (CF) is included in the rotation. The most significant bit (MSB) is rotated to the carry flag, the carry flag is rotated to the least significant bit position, all other bits are shifted to the left as shown in the below image. The result includes the original value of the carry flag.
RCR - Rotate with Carry Right
Explanation:
The Rotate with Carry Right (RCR) instruction shifts all bits in the register or input operand specified. The carry flag (CF) is included in the rotation. The least significant bit is rotated to the carry flag, the carry flag is rotated to the most significant bit position, all other bits are shifted to the right as shown in the below image. The result includes the original value of the carry flag.
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