Question

Write a program that finds the largest number among two numbers and store the result in...

Write a program that finds the largest number among two numbers and store the result in any register.

Value1: 0x18345678 (hexidecimal)

Value2: 0x15678245 (hexidecimal)

(Code in ARM assembly language, Using Keil software)

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Answer #1

ARM Program to find largest number among the two Numbers.

AREA MAX, CODE, READONLY ENTRY.

START

LDR R0, NUMBERS   // load address of first numbers to be compared in register R0

MOV R2, # & 02 // number of values to be compared

EOR R1, R1, R1. // clear register R1

LOOP 1

LDR R3, [RO] // load number

CMP R3, R1 // compare numbers

BCC LOOP2 // Branch if carry is clear

MOV R1, R3 // move register R3 to R1

LOOP 2

ADD RO, RO, #4

SUBD R2, R2, #1

BEN LOOP1

LDR R4= RESULT   

STR R1, [R4]

OVER B OVER

AREA ANSWER, READWRITE

NUMBER DCD & 18345678,& 15678245

RESULT DCD 00.

END.

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