Intel 8085 Microprocessor Code And Execute

The CPU makes use of different types of registers placed inside the processor chip.

This was also one of the most commercially successful processor that is still powering many devices.

It is important for the students of computer science to first study the 8085 architecture.

This will help you understand some important foundational concepts.

In this article you will learn all the foundational concepts necessary to understand the Intel 8085 microprocessor architecture, its technical features and the functions of the various functional units inside the 8085 processor chip.

Each microprocessor internally consist of three basic units which include the memory unit ( MU ), control unit ( CU ) and the arithmetic logic unit ( ALU ).

The CPU memory unit consist of high speed memory areas called registers.

The control unit controls all the system components by sending the control signals along the control bus.

The arithmetic logic unit ( ALU ) of the CPU performs all the arithmetic and logical operations as directed by the program instructions.

A computer program consist of set of instructions that directs the CPU to perform the desired operations.

The operating system loads the program into the main memory RAM.

Each program instruction residing in the memory is a represented by machine instruction in binary.

The CPU executes the program by repetitively performing the instruction cycle.

Intel 8085 Microprocessor Code And Execute

The instruction cycle is a three step CPU operation which includes fetch, decode and execute operation.

The 8085 microprocessor is a 8 bit processor launched by Intel corporation in year 1976.

The 8085 microprocessor was developed using the NMOS technology.

The NMOS stands for negative channel metal oxide semiconductor which is a type of technology used to manufacture IC chips.

The 8085 processor is available in the market in many versions and used in many electronic gadgets such as washing machines, microwave ovens and other such devices.

The efficiency and the performance depends upon its architecture.

For example Intel Core i3, Core i5 and AMD architecture family include Ryzen 3, Ryzen 5.

The instruction set architecture ( ISA ) defines the set of binary commands supported by the processor and should not be confused with processor architecture.

Each functional unit performs a specific function during the program execution by the processor.