Microprocessor
Let the content of accumulator and register B be 0000 0100 and 0100 0000 respectively before execution of instruction SUB B. The content of accumulator after the execution of this instruction will be
D, Z, S, P, AC
Z, CY, S, P and AC
Z, CY, S, D, AC
Z, C, S, P, AC
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1, 2, 4, 3
2, 1, 3, 4
1, 2, 3, 4
2, 1, 4, 3
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