How to sort element in assembly language emu8086

Here I will show you how to take user input in an array and sort them in assembly language emu8086

There are many sorting algorithms like insertion sort,selection sort,bubble sort,quick sort,merge sort.In high level language it is easy to use any of these language.But in machine language like assembly it is little bit tough.So here I use a simple and easy sorting algorithm bubble sort.Let's see the code how it works.

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INCLUDE 'EMU8086.INC'
.MODEL SMALL
.STACK 100h
.DATA        
    ARR DB 50 DUP(?)    ;declare array

.CODE
    MAIN PROC
        
        MOV AX,@DATA
        MOV DS,AX
        
        PRINT "Number of data(1-9): "
        MOV AH,1
        INT 21h
        AND AL,0FH  ; convert ascii value       
        
        XOR CX,CX    ;to set zero
        MOV CL,AL
        PUSH CX
        PUSH CX  
        LEA SI,ARR
        
        PRINTN        ;print new line
        PRINTN
        PRINT "Enter Data: "    ;print message       
     
     INPUT:         
         MOV AH,1
         INT 21h
        
         MOV ARR[SI],AL
         INC SI
         LOOP INPUT           ;looping 
         
         POP CX          
         LEA SI,ARR
         ADD CX,SI
        
     XOR BX,BX      
     SORT:            ;sorting label
          SUB CX,1
          LEA SI,ARR
          CMP CX,SI
          JLE EXIT
          
          SWAP:
            CMP SI,CX
            JGE SORT
                        
            MOV BL,ARR[SI]   ; bubble sort algorithm
            MOV BH,ARR[SI+1]
            CMP BL,BH
            JLE INCREMENT
            
            MOV ARR[SI],BH
            MOV ARR[SI+1],BL
            INC SI

            JMP SWAP  
         

      INCREMENT:
           INC SI
           JMP SWAP
      EXIT:
           LEA SI,ARR
           POP CX
           PRINTN
           PRINTN
           PRINT "After Sorting: "
         
      OUTPUT: 
            MOV DL,ARR[SI]  ;show output
            MOV AH,2
            INT 21h
            INC SI
            LOOP OUTPUT
        
     MAIN ENDP
END MAIN

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Comments

  1. Hamza MughalNovember 22, 2023 at 9:53 PM

    Here is am error to sorting, and if we put 8 value then it goes to in halt position.

    ReplyDelete

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