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Write an assembly program called 64bitAdd.s that adds two 64 bit numbers together.

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Write an assembly program called 64bitAdd.s that adds two 64 bit numbers together.

1. The first number will be referenced by the label num1 and the second number will be referenced by the label num2.

2. The upper 32 bits of the sum should be placed in EDX and the lower 32 bits in EAX.

3. AFTER the last line of code that you wish to be executed in your program please place the label done.

1. Make sure that there is an instruction after the done line and a new line after that instruction. If you don't your output won't match mine.

4. I have included a Makefile for you that will compile your program.

5. IT IS OF VITAL IMPORTANCE THAT YOU NAME YOUR LABELS AS SPECIFIED AND MAKE THE APPROPRIATE AMOUNT OF SPACE FOR EACH VARIABLE! I will be using gdb to test your code and if your labels do not match then the tests will fail. You must also make sure to include the done label AFTER the last line of code you want executed in your program so that I know where to set break points.

6. The following table shows how the numbers will be laid out in memory.

 

 

num1:

Upper 32 bits of num1

Lower 32 bits of num1

 

num2:

Upper 32 bits of num2

Lower 32 bits of num2

 

The assembly format should be like this: I believe its the x86 assembly format.

 

.global _start

.data dividend:

.long 0 divisor:

.long 0

# quotient in EAX and left_over in EDX # i in ECX

.text

_start:

movl %ecx, $31 #ecx is the iterator that stores the value 31 initially top:

movl $dividend, %ebx #

 

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