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Uses the ALU in the CPU to carry out these instructions. One of the operand must be kept in the

accumulator or reg. A for 8-bit operations. For 16-bit operations the operand is kept in a register

pair HL. or we can say data manipulation instruction

virtual all data operations use:

accumulator for byte operations

or carry bit for bit operations

logical operations: AND OR XOR NOT called compelement

bit operation:carry bit,many bit in register.

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