Write an assembly program for DC motor speed control. You program should work as follows:  When it is started, the motor spins at the speed of 20 rps (rounds per second).  Every time when key 1 on the keypad is pressed, the motor speed is increased by 10 rps. What is the maximal speed you can achieve?  Every time when key 2 on the keypad is pressed, the motor speed is decreased by 10 rps. What is the minimum speed you can achieve?  When key 3 is pressed, the motor stops.  When key 4 is pressed, the motor starts spinning at the speed of 20 rps.

3.asm

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