How do you change a degree of rotation in stepper motor using 8085 microprocessor?

To change the degree of rotation in a stepper motor using an 8085 microprocessor, you first need to determine the number of steps required for the desired rotation. This is done by calculating the steps per degree based on the stepper motor's specifications. Then, you can write a program in assembly language to control the motor's step sequence using output ports connected to the motor driver. By sending the appropriate sequence of signals for the calculated number of steps, you can achieve the desired rotation.