The Art of Assembly Language

Results and Observations On previous experiments, the interrupt 21H has been wontd on grassroots input and output operations. This time, int 21H was used on process akin to file streaming that is usually observed on higher(prenominal) take aim programming language. File streaming is the access of files internal the warehousing of the computer. On file streaming, the program whitethorn create, blossom and boot out files especially text files. After opening, it is possible to take the content of the file or to write contents on the file. utilize int 21H allows theses functions together with different I/O operations In the process of file streaming, there is a need to runner open the file, read/write contents and then stiff the file in entrap. You whitethorn read/write anything on the file without first opening it. If there seems to be a problem with any of these stages, the interrupt sends signals on registers regarding the error. These signals must be interpreted b y the programmer for him to place proper prompts regarding the error. Results and Observations In this experiment, interrupt 33H was explored which is mainly used on mouse processing. INT 33H basically controls the mouse pointer depending on the actions performed on the mouse. There argon various applications of this interrupt on video related programming. First, you whitethorn set the mouse to be used only on a certain border. This means that the mouse is concealed on one place. Through this, all of the inputs using the mouse may be processed because of the movement limitation. Then, INT 33H may also scene upon left clicking or right clicking the mouse. It sends signals to registers regarding the action and where it was performed. INT 33H is an interrupt shorten on the manipulation of mouse inputs. Several applications of this interrupt ar applied on game programming and control with the use of a mouse.If you want to get a dear essay, order it on our website: OrderEssay.! net

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