Chapter 5, Problem 15RETC

Explanation of Solution

Immediate addressing mode:

in immediate addressing mode, the instruction is immediately followed by the data which means that the data that is to be used is already given in the instruction itself.

Example:

ADD R4, #4

This instruction is used to add the data 4 immediately with the contents of register R4.

Direct addressing mode:

Example:

MOV R3, 46H

This instruction is used to move the data present at the location 46H to register R3.

Register addressing mode:

Example:

Add, R3, R4

This instruction is used to add the contents of register R4 to R3 and then store it in R3...