What is 8085 Microprocessor

The microprocessor is a small VLSI (very large scale integration) chip with many pins. It processes information and manage the exchange between the Input/Output units and main memory.
It is controlled by a sequence of instructions called microprocessor program, and the result of this program in sent to the appropriate periphiral (input and output).
The microprocessor consists of the following sections:

Difference between address and data bus


Addressing Modes in 8085

There are five addressing modes in 8085.

1. Immediate Addressing Mode: - An immediate is transferred directly to the register.

Eg: - MVI A, 30H (30H is copied into the register A)

RLC, RRC, RAL, RAR, CMA, CMC, STC

1. RLC: - Each binary bit of the accumulator is rotated left by one position. Bit D7 is placed in the position of D0 as well as in the Carry flag. CY is modified according to bit D7. Any other bit is not affected.

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