Write a program to (a) display a "?", (b) read two decimal digits whose sum "is less than 10, (c) display them and their sum on the next line, with an appropriate message. Sample execution: ?27 THE SUM OF 2 AND 7 IS 9 /* * * Prosen Ghosh * American International University - Bangladesh (AIUB) * */ TAG: EASY, 8086 MICROPROCESSOR, ASSEMBLY LANGUAGE CHAPTER 4 , PROGRAMMING EXERCISE , FUNCTION/PROCEDURE .
Solution:
.MODEL SMALL .STACK 100H .DATA STR1 DB 0AH,0DH,'THE SUM OF ' FIRSTNUM DB ? STR2 DB ' AND ' SECONDNUM DB ? STR3 DB ' IS ' ANS DB ? STR4 DB ' $' .CODE MAIN PROC MOV AX,@DATA MOV DS,AX CALL MSG_PROMPT CALL INPUT_FUNC CALL CALCULATION_FUNC CALL OUTPUT_FUNC MOV AH,4CH INT 21H MAIN ENDP MSG_PROMPT PROC MOV AH,2 MOV DL,3FH INT 21H RET MSG_PROMPT ENDP INPUT_FUNC PROC MOV AH,1 INT 21H MOV BL,AL MOV FIRSTNUM,AL INT 21H MOV SECONDNUM,AL RET INPUT_FUNC ENDP CALCULATION_FUNC PROC ADD BL,AL SUB BL,30H MOV ANS,BL RET CALCULATION_FUNC ENDP OUTPUT_FUNC PROC MOV AH,9 LEA DX,STR1 ;VARIABLE PRINTING FIRST TO LAST INT 21H RET OUTPUT_FUNC ENDP END MAIN
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