TASK # 1: Assume that there is a class of five students with following grades 90, 84, 120, 10, 60. Find the highest grade .MODEL SMALL .STACK 64 .DATA NUM DB 90,84,120,10,60 HIGHEST DB ? COUNT EQU 5 .CODE .STARTUP XOR AX,AX MOV CX,COUNT LEA BX,NUM L_1: CMP AL,[BX] JA L_2 MOV AL,[BX] L_2: INC BX DEC CX JNZ L_1 MOV HIGHEST,AL .EXIT END OR .MODEL SMALL .STACK 64 .DATA NUM DB 90,84,120,10,60 HIGHEST DB ? COUNT EQU 5 .CODE .STARTUP XOR AX,AX MOV CX,COUNT LEA BX,NUM L_1: CMP AL,[BX] JA L_2 MOV AL,[BX] L_2: INC BX LOOP L_1 MOV HIGHEST,AL .EXIT END TASK # 2: Write a program to find the number of characters in a string. Display your output at row = 10 and column = 10 .MODEL SMALL .STACK 64 .DATA STRING1 DB 9,?,9 DUP (?) RESULT DB ? OUTPUT1 DB 'NUMBER OF CHARACTERS YOU TYPED: ','$' .CODE MAIN PROC FAR MOV AX,@DATA MOV DS,AX XOR AX,AX CALL CALL LEA LEA XOR MOV OR MOV CALL CALL MOV MOV INT CLR_SCR GET_DAT SI,STRING1 DI,OUTPUT1 CX,CX CL,[SI+1] CL,30H RESULT,CL CUR_POS DIS_SCR DL,RESULT AH,02 21H MOV AH,4CH INT 21H MAIN ENDP ;-------GET DATA------------------------GET_DAT PROC MOV AH,0AH MOV DX,OFFSET STRING1 INT 21H RET GET_DAT ENDP ;-------DISPLAY SCREEN------------------DIS_SCR PROC MOV AH,09 MOV DX,OFFSET OUTPUT1 INT 21H RET DIS_SCR ENDP ;-------CLEAR SCREEN--------------------CLR_SCR PROC MOV AX,0600H MOV BH,07 MOV CX,0000 MOV DX,184FH INT 10H RET CLR_SCR ENDP ;-------CURSOR POSITION-----------------CUR_POS PROC MOV AH,02 MOV BH,00 MOV DH,10 MOV DL,10 INT 10H RET CUR_POS ENDP END TASK # 3: Write a program to display a message as: ‘There is a message for you Mr. Ahmad. Press key Y or y to read the message’. If user press key Y or y display a message as: ‘Today, there is no class, ’ otherwise display a message as ‘Today, there is no class, ’ .MODEL SMALL .STACK 64 .DATA MESSAGE1 DB 'THERE IS A MESSAGE FOR YOU MR. AHMAD.' DB 'PRESS KEY Y OR y TO READ THE MESSAGE. ','$' MESSAGE2 DB 0AH,0DH,'TODAY, THERE IS NO CLASS',01,'$' MESSAGE3 DB 0AH,0DH,'TODAY, THERE IS A CLASS',02,'$' RESULT DB ? .CODE MAIN PROC FAR MOV AX,@DATA MOV DS,AX XOR AX,AX MOV AH,09 MOV DX,OFFSET MESSAGE1 INT 21H MOV AH,01 INT 21H CMP AL,'Y' JE M_2 CMP AL,'y' JE M_2 JMP M_3 M_2: MOV AH,09 MOV DX,OFFSET MESSAGE2 INT 21H JMP M_S M_3: MOV AH,09 MOV DX,OFFSET MESSAGE3 INT 21H M_S: MOV AH,4CH INT 21H MAIN ENDP