ARM Assembly language.

You will write a program that calculates the hypotenuse of a right triangle using Pythagorean's theorem.

Prompt the user to enter two integers side A and side $B$ of the right triangle.

If $A$ or $B$ is less than or equal to zero the program should prompt the user of the error and end the program.

Use the function "intSqrt" to do the square root.

You need to download the code template for this homework to work. Do not change the intSqrt.c or the tri.s file names. All code should be

written in the tri.s$.$

How to compile:

Unlike your previous examples the code will not compile just using gcc like it did with other examples. To compile you will run this command

make build

it will compile the intSqrt.c into an object and then compile the tri.s and intSqrt.o together to make the program work. Then to run the program

use the command

$.\frac{?}{?}$ tri

Submission instructions:

Submit the final version as a zip file with the following files: tri.s

Important Notes:

intSqrt wants a single parameter in rO $,$ and will return the square root into r$0$

Here is the equation to find the hypotenuse $c=\sqrt[\phantom{2}]{a^2+b^2}$

ARM Assembly language.

File tri.s

$.$global main

$.$extern intSqrt $//$DO NOT REMOVE

$.$align $4$

$.$section $.$data

$//$ your data here

$.$align $4$

$.$section $.$rodata

$//$ your read only data here

$.$text

main:

push $\{$lr$\}$

$//$ this is dummy code to show you how to use the intSqrt function

$//$ you can erase this and put your code here

mov r$0,$ #$4$

bl intSqrt $//$ Call a square root routine

pop $\{$pc$\}//$ should return $2$ if the sqrt is working

File intsqrt.c

#include

#include

uint$32\_$t intSqrt$($ uint$32\_$t a $)\{$

return $($uint$32\_$t$)$ sqrt$(($double$)$ a $)$;

$\}$

File Makefile

build:

gcc $-$c intSqrt.c $-$o intSqrt.o

gcc $-$o tri intSqrt.o tri.s $-$lm

clean:

rm tri sqrt$.$o