In the STC89C52, which ALU-related hardware function is responsible for executing the MUL AB instruction?

Question

Answer

The logical/bitwise unit, because multiplication is implemented as repeated bit masking

Answer

The decimal/BCD adjustment unit used by DA A

Answer

A floating-point unit that converts A and B to floating point before multiplying

Answer

The integer arithmetic unit that performs binary multiplication and writes the 16-bit product into B:A

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