Introduction to Microprocessor & Code
- 1. Microprocessor & Interfacing Subject Code : EEE - 323
- 2. Introduction to Microprocessor & Code Presenter : Avijit Adhikary ID : 173-33-549 MD. Sajib RANA ID : 173-33-551 Presentation Name
- 3. Index • Definition of Microprocessor • Operations of Microprocessor • Inside of a Microprocessor • An Executed Code that is performed by EMU8086 Emulator
- 4. Definition What is Microprocessor? Microprocessor is an electronic circuit that functions as the central processing unit (CPU) of a computer, providing computational control. Microprocessor is the core of the system. It called as heart of a computer.
- 5. Operations Types of Operations : Initially microprocessor performs two basic things while executing the instruction: It performs some basic operations like addition, subtraction, multiplication, division and some logical operations, using its: Arithmetic Operation : Addition, Subtraction, Multiplication, Division Logical Operation : Logical Operations (Such as AND, OR, XOR) In Short “ It’s called as Central Processing Unit(CPU) that execute ALU operations.”
- 6. Inside Inside of a Microprocessor : Internally, the microprocessor is made up of three main units. Arithmetic and Logic Unit (ALU) Control Unit Array of Registers
- 7. Executed Code Write a program in assembly language to check whether a number is even or odd.
- 8. .MODEL SMALL ; Established Code Structure .STACK 100H ; Enter into DOS .DATA MSG1 DW ' is an EVEN Number $’ ; Define Data MSG1 MSG2 DW ' is an ODD Number $’ ; Define Data MSG2 .CODE MAIN PROC MOV AX, @DATA MOV DS, AX ; Initialized “DS” Register MOV AH, 1 ; Input a Number from Keyboard INT 21H MOV BL, 2 ; Move “2” into “BL” Register DIV BL ; Divide Inputted value by BL Register Value MOV AL, AH ; Move “AH” register value into “AL” CMP AL, 0 ; Subtract “AL” value from “0” JNZ ODD ; Jump ODD EVEN: LEA DX, MSG1 ; Collect Data Address as MSG1 MOV AH, 9 ; Print MSG1 INT 21H JMP EXIT ; Jump to Exit ODD: LEA DX, MSG2 ; Collect Data Address as MSG2 MOV AH, 9 ; Print MSG2 INT 21H EXIT: MOV AH, 4CH ; Exit from DOS INT 21H MAIN ENDP Program : Part 1 Program : Part 2
- 9. Executed Code Figure (MI.01) : Enter into the program
- 10. Executed Code Figure (MI.02) : Initialized DS
- 11. Executed Code Figure (MI.03) : Move “1” to “AH” for input a keyword from keyboard
- 12. Executed Code Figure (MI.04) : Input a Number on Black Window
- 13. Executed Code Figure (MI.05) : Move “2” into “BL” register
- 14. Executed Code Figure (MI.06) : Divide inputted value by “BL” register
- 15. Executed Code Figure (MI.07) : Move “AH” register Value into “AL” Register
- 16. Executed Code Figure (MI.08) : Move “AH” register value into “AL”
- 17. Executed Code Figure (MI.09) : Compare “AL” register value with “0”
- 18. Executed Code Figure (MI.10) : Pointer moves at “ODD” sub-function
- 19. Executed Code Figure (MI.11) : Move “9” into “AH” for print string
- 20. Executed Code Figure (MI.12) : Print “1” as an “ODD” number
- 21. Executed Code Figure (MI.13) : Exit from DOS
- 22. Executed Code Figure (MI.14) : Input another number
- 23. Executed Code Figure (MI.15) : Store “2” into “BL” register
- 24. Executed Code Figure (MI.16) : Compare “AL” register value with “0”
- 25. Executed Code Figure (MI.17) : Continue loop for “EVEN” number
- 26. Executed Code Figure (MI.18) : Enter into “EVEN” sun-function
- 27. Executed Code Figure (MI.19) : Call Interrupt key to exit from loop
- 28. Executed Code Figure (MI.20) : Exit from DOS