Question: Two signed numbers A and B represented in signed-2's complement form are compared by subtracting A - B. Status bits S, Z, and V are

Two signed numbers A and B represented in signed-2's complement form are compared by subtracting A - B. Status bits S, Z, and V are set or cleared depending on the result of the operation. (Note that there is a sign reversal if an overflow occurs.) Show that the relative magnitude of A and B can be determined from inspection of the status bits as specified below. (See also Table 8-11.)

Table for Problem 8-26 Relation A > B A

Table for Problem 8-27 Relation A > B A Z B A

Table 8-11

Table for Problem 8-26 Relation A > B A

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Introduction In digital systems determining the relationship between two signed binary numberssuch as A B A B or A Bis essential for decisionmaking processes like branching and comparison Signed numbe... View full answer

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