org 100h

The emu8086 is malfunctioning on my PC.It keeps stopping anytime i launch it.So i want to know if there’s an alternative app to it or a solution to the malfunctioning issue

While making an assembly project, we encountered a problem with the screen. Its very similar to the “Space Invaders” game. We print on it by using the ‘video graphic mode’ of the ‘int 10h’.
I have read in previous questions that the solution is to print in one screen, and then change to another, but after trying for several days, reading how the interruption works, im still not able to solve it.this is how the game looks like
To print and mimic movement, we do the following: 1st we print the enemies, 2do we print the spaceship (blue thing down below), 3rd we added a delay function, 4th call a function that checks keyboard buffer for keys to move the spaceship or shoot.

I am not allowed to use loop for print the sum, I have to use jump only

.model small
.stack 100h

I have written the code for a movie ticketing system, and I have only implemented it for Action Movie 1 to test its functionality. When I run the code, everything goes well until I enter the quantity. At that point, it displays weird symbols until the payment part. How should I address this? I used emu8086 to run the code.

This is the requirement of the problem