Since an ALU has a adder IC and no subtractor IC, how must binary subtraction be performed in an ALU? O All of the bits of both of the ALU's inputs are inverted before the bits are added by the ALU's adder. O The ALU's Adder sets the carry in and carry out bits to 1 before performing addition on the ALU's inputs. O All the bits of the second of the ALU inputs are inverted, the binary number 1 is added to the inverted second input, and then the first input is added by the ALU's adder to the inverted second input + the binary number 1. O The ALU's Overflow and Zero bits are set to 0 after performing addition on the ALU's inputs.
Since an ALU has a adder IC and no subtractor IC, how must binary subtraction be performed in an ALU? O All of the bits of both of the ALU's inputs are inverted before the bits are added by the ALU's adder. O The ALU's Adder sets the carry in and carry out bits to 1 before performing addition on the ALU's inputs. O All the bits of the second of the ALU inputs are inverted, the binary number 1 is added to the inverted second input, and then the first input is added by the ALU's adder to the inverted second input + the binary number 1. O The ALU's Overflow and Zero bits are set to 0 after performing addition on the ALU's inputs.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
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Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Transcribed Image Text:Since an ALU has a adder IC and no subtractor IC, how must binary subtraction be performed in
an ALU?
O All of the bits of both of the ALU's inputs are inverted before the bits are added by the
ALU's adder.
O The ALU's Adder sets the carry in and carry out bits to 1 before performing addition on the
ALU's inputs.
O All the bits of the second of the ALU inputs are inverted, the binary number 1 is added to
the inverted second input, and then the first input is added by the ALU's adder to the
inverted second input + the binary number 1.
O The ALU's Overflow and Zero bits are set to 0 after performing addition on the ALU's
inputs.
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