Write an ALP for 8086 to read string and print it in the reverse order.

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Bipin Tiwari · Accepted Answer

.MODEL SMALL .STACK 100H .DATA ; The string to be printed STRING DB 'This is a sample string', '$' .CODE MAIN PROC FAR MOV AX,@DATA MOV DS,AX ; call reverse function CALL REVERSE ; load address of the string LEA DX,STRING ; output the string ; loaded in dx MOV AH, 09H INT 21H ; interrupt to exit MOV AH, 4CH INT 21H MAIN ENDP REVERSE PROC ; load the offset of ; the string MOV SI, OFFSET STRING ; count of characters of the; ;string MOV CX, 0H LOOP1: ; compare if this is; ;the last character MOV AX, [SI] CMP AL, '$' JE LABEL1 ; else push it in the; ;stack PUSH [SI] ; increment the pointer; ;and count INC SI INC CX JMP LOOP1 LABEL1: ; again load the starting; ;address of the string MOV SI, OFFSET STRING LOOP2: ;if count not equal to zero CMP CX,0 JE EXIT ; pop the top of stack POP DX ; make dh, 0 XOR DH, DH ; put the character of the; ;reversed string MOV [SI], DX ; increment si and; ;decrement count INC SI DEC CX JMP LOOP2 EXIT: ; add $ to the end of string MOV [SI],'$ ' RET REVERSE ENDP END MAIN output: gnirts elpmas a si sihT

Write an ALP for 8086 to read string and print it in the reverse order.

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Write an ALP for 8086 to read string and print it in the reverse order.

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