Logic Diagram Of 8085. These are basically used to hold. Here logical operation works on a bitwise level.
It is multiplexed with lower order address bus with lines ad0 ad7. In the beginning the ale signal is high indicating that ad0 ad7 includes lower address bits. Logical instructions are the instructions which perform basic logical operations such as and or etc.
And an 8086 microprocessor is able to perform these operations with 16 bit data in one cycle.
Alu the alu performs the actual numerical and logic operation such as add subtract and or etc. It uses a single 5v supply for its operations. In the above illustration of the bus structure of 8085 you can observe that the data bus has arrow ends on both sides from cpu to the memory and from memory to the cpu. Each instruction is represented by an 8 bit binary value.