Write an assembly program to find the largest element by searching an array int

Question

Write an assembly program to find the largest element by searching an array int ary[] = {1, 5, -3, -4, 0, 6, 11, 9, 18} int index = 0; int max ary[0]; int arraySize = sizeof array/sizeof max while (index max) max = ary[index]: Use cmp instruction and the appropriate jump instruction (signed or unsigned) to translate the if and while statements Use S operator (see chapter 3)to calculate the size of the array, and inc instruction to increment the index of the array Run your program using the debugger to verify your answers (do this too for questions 2 and 3) Submit the following:

Explanation / Answer

find large number in given array:

DATA SEGMENT //data segment .data are initialized

ARY DB 1,5,-3,-4,0,6,11,-9,18 // input array

SIZE DW $ARY /size of array

MAX DB ? //large no find

DATA ENDS /data segments ends

CODE SEGMENT /code segments

ASSUME DS:DATA,CS:CODE

START:

MOV AX,DATA /data moved to AX register

MOV DS,AX

LEA SI,ARY /starting address of array is loaded to SI register

MOV AL,ARY[SI]

MOV MAX,AL /array[0] is moved to max

MOV BL,SIZE

LOOP1:

MOV AL,ARY[SI]

CMP MAX,AL /comparison to find large no

JG LOOP2

MOV MAX,AL

LOOP2:

INC SI /index of array is incremented

LOOP LOOP1

MOV AH,4CH

INT 21H

CODE ENDS /code ends here

END START

OUTPUT:

ARY 1,5,-3,-4,0,6,11,-9,18

SIZE 9

MAX 18

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