Representation of Instructions in 8085 with Absolute Addressing Mode
The below format specifies the intrusion of 8085 microprocessors with absolute addressing mode.
Opcode |
Memory Address |
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Operation of Absolute Addressing Mode
In absolute addressing mode, we require following operations to fetch the operand.
- First identify the effective address from the address part of the instruction.
- Then, go to the specified effective address.
- The content present in the effective address gives the operand.
- Then, fetch the operand and perform required operations.
Absolute Addressing Mode in 8085 Microprocessor
In absolute addressing mode in the 8085 microprocessor, the effective address is provided directly in the address part of the instruction. The operand can be directly fetched by accessing the effective address. In this article, we will explore the absolute addressing mode and discuss the operations and examples of absolute addressing mode. We will also discuss the advantages, disadvantages and applications of absolute addressing mode in 8085 microprocessors.
Table of Content
- Absolute Addressing Mode
- Representation of Instructions
- Examples
- LDA Instruction
- Advantages and Disadvantages
- Application