- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Immediate addressing mode in 8085 Microprocessor
In this mode, the 8/16-bit data is specified in the instruction itself as one of its operand. For example MVI E, ABH: means ABH is copied into register A. Here the operand is immediately available in the instruction.
MVI E ABH
| Before | After | |
|---|---|---|
| (A) | Any value | ABH |
As example, if we consider instruction MVI E, ABH then it means that ABH will be moved or copied to the register E. And, as a result, the previous value of E will get overwritten.
| Address | Hex Codes | Mnemonic | Comment |
|---|---|---|---|
| 2000 | 1E | MVI E, ABH | E ← ABH |
| 2001 | AB | ABH as operand |
This instruction will have seven T-states as shown below.
Summary − So this instruction MVI E, ABH requires 2-Bytes, 2-Machine Cycles (Opcode Fetch and Memory Read) and 7T-States for execution as shown in the timing diagram.
Updated on 26-Jun-2020 11:55:19
- Related Questions & Answers
- Register addressing mode in 8085 Microprocessor
- Absolute addressing mode in 8085 Microprocessor
- Implied addressing mode in 8085 Microprocessor
- Register indirect addressing mode in 8085 Microprocessor
- Addressing modes of 8085 in 8085 Microprocessor
- Prompt mode in 8085 Microprocessor
- Command mode in 8085 Microprocessor
- Data file mode in 8085 Microprocessor
- Addressing of I/O Ports in 8085 Microprocessor
- Addressing modes in 8086 microprocessor
- 8085 program to swap two 8 bit numbers using Direct addressing mode
- 8085 program to swap two 16-bit numbers using Direct addressing mode
- RAM Addressing of 8051 Microprocessor
- Microprocessor 8085 Architecture
- Registers of 8085 Microprocessor
Advertisements