Addressing mode

Addressing modes are the modes which are used to specified the address of data and operands. Address of Operand also called as effective a...

Addressing modes are the modes which are used to specified the address of data and operands.
Address of Operand also called as effective address.

Types of Addressing Modes:-


1)Direct Addressing Mode:-Direct Addressing Mode are the mode in which instruction itself contains the address of data.


2)Indirect Addressing Mode:-Indirect Addressing Mode are the mode in which instruction doesn't 
contain the address of data but instruction specified address of memory which contains the address of memory.

3)Immediate Addressing Mode:-In this mode operand is specified the instruction.

Some other type of Addressing Modes are:-


4)Register Addressing Mode:-In this mode op code contains the address of register.





5)Indirect Addressing Register Mode:-In this mode op code redirects to another register.





6)Auto Increment and Auto decrement Addressing Mode:-In this mode register is automatically 

incremented or decremented after its value is needed to access memory location.




Effective Address=Address of IP+Content of PC.


7)Index Addressing Mode:-In this mode effective address is equals to the address part of IR plus

Content of Index Register.




8)Base Addressing Mode:-In this mode effective address equals to content of bade address plus

Address part of IR.






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