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‎MPLab/ASCII_L3.asm

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;Read an Alphanumeric Character & Display Its Equivalent ASCII Code At The Center Of The Screen.
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.MODEL SMALL
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DISPLAY MACRO MSG
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LEA DX,MSG
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MOV AH,09H
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INT 21H
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ENDM
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.DATA
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MSG1 DB 0DH,0AH,"ENTER ALPHANUMERIC CHARACTER : $"
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RES DB 02 DUP(0)
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.CODE
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MOV AX,@DATA
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MOV DS,AX
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LEA DX,MSG1
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CALL DISP
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MOV AH,01H
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INT 21H
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MOV BL,AL
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MOV CL,04
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SHR AL,CL
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CMP AL,0AH
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JC DIGIT
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ADD AL,07
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DIGIT : ADD AL,30H
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MOV RES,AL
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AND BL,0FH
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CMP BL,0AH
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JC DIGIT1
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ADD BL,07
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DIGIT1 : ADD BL,30H
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MOV RES+1,BL
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MOV AH,00H
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MOV AL,03H
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INT 10H
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MOV AH,02H
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MOV BH,00H
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MOV DH,0CH
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MOV DL,28H
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INT 10H
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MOV RES+2,'$'
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LEA DX,RES
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CALL DISP
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MOV AH,4CH
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INT 21H
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DISP PROC NEAR
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MOV AH,09H
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INT 21H
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RET
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DISP ENDP
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END
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‎MPLab/Binary_Search_L1.asm

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;Design & Develop an Assembly Language Program To Search a Key Element "X" in a List of 'n' 16-bit Numbers. Adopt Binary Search Algorithm in Your Program For Searching.
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.MODEL SMALL
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DISPLAY1 MACRO MSG
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LEA DX,MSG
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MOV AH,09H
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INT 21H
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ENDM
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.DATA
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LIST DB 0H,3H,4H,5H,7H,9H
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NUMBER EQU($-LIST)
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KEY DB 7H
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MSG1 DB 0DH,0AH,"SEARCH SUCCESSFUL, ELEMENT FOUND IN THE LIST.$"
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MSG2 DB 0DH,0AH,"SEARCH FAILED, ELEMENT NOT FOUND.$"
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.CODE
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START : MOV AX,@DATA
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MOV DS,AX
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MOV CH,NUMBER-1
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MOV CL,00H
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AGAIN : MOV SI,OFFSET LIST
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XOR AX,AX
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CMP CL,CH
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JE NEXT
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JNC FAILED
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NEXT : MOV AL,CL
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ADD AL,CH
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SHR AL,01H
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MOV BL,AL
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XOR AH,AH
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MOV BP,AX
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MOV AL,Ds:[BP][SI]
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CMP AL,KEY
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JE SUCCESS
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JC INCLOW
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MOV CH,BL
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DEC CH
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JMP AGAIN
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INCLOW : MOV CL,BL
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INC CL
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JMP AGAIN
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SUCCESS : MOV AL,KEY
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ADD AL,30H
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MOV DL,AL
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MOV AH,02H
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INT 21H
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DISPLAY1 MSG1
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JMP FINAL
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FAILED : MOV AL,KEY
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ADD AL,30H
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MOV DL,AL
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MOV AH,02H
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INT 21H
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DISPLAY1 MSG2
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FINAL : MOV AH,01H
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INT 21H
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MOV AH,4CH
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INT 21H
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END START
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‎MPLab/BubbleSort_L2.asm

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;Design & Develop an Assembly Language Program To Sort a Given set of 'n' 16-bit Numbers in Ascending Order. Adopt Bubble Sort Algorithm To Sort Given Numbers.
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.MODEL SMALL
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.DATA
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A DB 08,02,03,01,04,07
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N EQU($-A)
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.CODE
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MOV AX,@DATA
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MOV DS,AX
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MOV CL,N
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DEC CL
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OUTERLOOP:MOV CH,CL
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MOV SI,00
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INNERLOOP:MOV AL,A[SI]
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INC SI
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CMP AL,A[SI]
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JB NOXG
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XCHG AL,A[SI]
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MOV A[SI-1],AL
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NOXG: DEC CH
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JNZ INNERLOOP
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DEC CL
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JNZ OUTERLOOP
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MOV AH,4CH
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INT 21H
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END
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‎MPLab/README.md

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# MicroprocessorLab

‎MPLab/palindrome mp.txt

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.model small
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display macro msg
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lea dx,msg
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mov ah,09h
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int 21h
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endm
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.data
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msg1 db 0dh,0ah,"enter a string$"
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msg2 db 0dh,0ah,"entered string is palindrome$"
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msg3 db 0dh,0ah,"entered string is not palindrome$"
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str db 10h dup(0)
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revstr db 10h dup(0)
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len dw 0
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.code
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mov ax,@data
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mov ds,ax
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display msg1
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mov si,00h
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back1:mov ah,01h
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int 21h
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cmp al,0dh
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jz next
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mov str[si],al
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inc si
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inc len
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jmp back1
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next:mov si,00h
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mov di,00h
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add di,len
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dec di
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mov cx,len
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back2:mov al,str[si]
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mov revstr[di],al
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inc si
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dec di
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loop back2
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mov cx,len
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mov si,00h
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mov di,00h
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cld
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back3:mov bl,str[si]
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cmp bl,revstr[di]
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inc si
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inc di
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jnz notpalin
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loop back3
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display msg2
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jmp last
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notpalin:display msg3
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last:mov ah,4ch
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int 21h
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end

‎MPLab/ylab5.asm

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;PROGRAM TO READ TWO STRINGS, STORE THEM IN LOCATIONS STR1 & STR2.CHECK WHETHER THEY ARE EQUAL OR NOT & DISPLAY APPROPRIATE MESSAGES. ALSO DISPLAY THE LENGTH OF THE STORED STRINGS.
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.MODEL SMALL
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DISP MACRO MSG
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LEA DX,MSG
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MOV AH,09H
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INT 21H
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ENDM
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.DATA
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LEN1 DW 0
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LEN2 DW 0
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SRC DB 10H DUP(0)
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DEST DB 10H DUP(0)
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MSG1 DB 0DH,0AH,"ENTER FIRST STRING $"
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MSG2 DB 0DH,0AH,"ENTER SECOND STRING $"
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MSG3 DB 0DH,0AH,"STRINGS ARE EQUAL $"
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MSG4 DB 0DH,0AH,"STRINGS ARE NOT EQUAL $"
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MSG5 DB 0DH,0AH,"LENGTH OF THE STRINGS IS $"
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MSG6 DB 0DH,0AH,"LENGTH OF THE FIRST STRING $"
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MSG7 DB 0DH,0AH,"LENGTH OF THE SECOND STRING $"
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.CODE
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MOV AX,@DATA
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MOV DS,AX
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MOV ES,AX
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DISP MSG1
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MOV SI,00
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BACK1:
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MOV AH,01H
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INT 21H
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CMP AL,0DH
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JE NEXT1
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MOV SRC[SI],AL
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INC SI
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INc LEN1
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JMP BACK1
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NEXT1 :
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MOV SRC[SI],'$'
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DISP MSG2
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MOV SI,00
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BACK2 :
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MOV AH,01H
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INT 21H
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CMP AL,0DH
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JE NEXT2
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MOV DEST[SI],AL
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INC SI
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INC LEN2
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JMP BACK2
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NEXT2 :
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MOV DEST[SI],'$'
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MOV AL,LEN1
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CMP AL,LEN2
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JNE NOTEQUAL
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LEA SI,SRC
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LEA DI,DEST
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MOV CL,LEN1
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CLD
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BACK3 :
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CMPSB
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JNE NOTEQUAL
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LOOP BACK3
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DISP MSG3
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DISP MSG5
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MOV AL,LEN1
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AAM
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ADD AX,3030H
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MOV BX,AX
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MOV DL,BH
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MOV AH,02H
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INT 21H
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MOV DL,BL
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MOV AH,02H
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INT 21H
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JMP LAST
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NOTEQUAL :
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DISP MSG4
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DISP MSG6
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MOV AL,LEN1
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AAM
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ADD AX,3030H
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MOV BX,AX
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MOV DL,BH
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MOV AH,02H
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INT 21H
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MOV DL,BL
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MOV AH,02H
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INT 21H
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DISP MSG7
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MOV AL,LEN2
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AAM
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ADD AX,3030H
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MOV BX,AX
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MOV DL,BH
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MOV AH,02H
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INT 21H
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MOV DL,BL
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MOV AH,02H
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INT 21H
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LAST :
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MOV AH,4CH
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INT 21H
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END
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