Statement I: Consider the 20-bit 'branch' microinstruction format: F1 (3 bits) | F2 (3) | F3 (3) | CD (2) | BR (2) | AD (7), where F1, F2, F3 are micro-operation fields, CD = condition for branching, BR = branch field and AD = address field.
Statement II: An instruction in the above format can branch on 4 conditions.
Choose the most appropriate answer.
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Correct answer: A. Both Statement I and Statement II are correct
Explanation
3 + 3 + 3 + 2 + 2 + 7 = 20 bits, so the format is consistent. A 2-bit CD field selects one of 22 = 4 branch conditions.More Computer System Architecture questions
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