8085 MICROPROCESSOR
FEATURE OF 8085
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Accumulator, arithmetic, logic circuits and five flags
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Accumulator, arithmetic and logic circuits
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Accumulator, temporary register, arithmetic, logic circuits and five flags
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Accumulator, temporary register, arithmetic and logic circuits
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Detailed explanation-1: -ALU (Arithmetic Logic Unit) of an 8085 microprocessor consists of :a)Accumulator, temporary register, arithmetic and logic circuits.
Detailed explanation-2: -An ALU consists of three types of functional parts: stor-age registers, operations logic, and sequencing logic, as shown in Fig. 1. The inputs and outputs of the ALU are connected to other functional units of the CPU, such as the cache memory and the program execution control unit.
Detailed explanation-3: -The 8085 microprocessor has an 8-bit ALU that can perform 8-bit operations. The lower order address bus is multiplexed with the data bus to minimize the chip size. Three control signals are available on the chip: RD: it is an active low signal.
Detailed explanation-4: -The ALU performs simple addition, subtraction, multiplication, division, and logic operations, such as OR and AND.