Write an assembly language program using 8051 instruction set

Addressing Modes

The way of accessing data is called addressing mode. The CPU can access the data in different ways by using addressing modes. The 8051 microcontrollerconsists of five addressing modes such as:.
1) Immediate Addressing Mode.
2) Register Addressing Mode.
3) Direct Addressing Mode.
4) Indirect Addressing Mode.
5) Base Index Addressing Mode Immediate Addres.

Call and Jump Instructions

The call and jump instructions are used to avoid the code replication of the program. When some specific code used more than once in different places in the program, if we mention specific name to code thenwe could use that name anywhere in the program without entering a code for every time. This reduces the complexity of the program. The 8051 prog.

How many instructions does 8051 have?

8051 has about 111 instructions. These can be grouped into the following categories .
1) Arithmetic Instructions .
2) Logical Instructions .
3) Data Transfer instructions .
4) Boolean Variable Instructions .
5) Program Branching Instructions 8051 has about 111 instructions. These can be grouped into the following categories.
1) Arithmetic Instructions

Instruction Set

The instruction set is the structure of the controller or processor that provides commands to the controller to guide the controller for processing data. The instruction set consists of instructions, native data types, addressing modes, interrupt registers, exceptional handling and memory architecture. The 8051 microcontroller can follow CISC instr.

What are the addressing modes in the 8051 instruction set?

The addressing modes in the 8051 instruction set are as follows: 1.2.1 Direct AddressingIn direct addressing the operand is specified by an 8-bit address field in the instruction. Only 128 Lowest bytes of internal Data RAM and SFRs can be directly addressed.

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