Background Discussion Assume that two values need to be swapped, such as is done in a number of commonly used Computer Science sorting algorithms. The typical high-level code is as follows: temp - num1; num1 - num2; num2 temp; This could be implemented on a line-by-line basis in assembly language using registers, but that would require two instructions for reach line of code as follows: mov eax,num1 mov temp, eax mov eax, num2 mov num1, eax mov eax, temp mov num2, eax Understandably, the above seems inefficient. Instead of using registers and mov instructions, another possibility is to use the stack. Not only is a runtime stack a way to save and restore values, it can also be useful in swapping two values. Another method of swapping two values is to use the exchange instruction. However, for this lab you will use the push and pop instructions to swap two values.
Background Discussion Assume that two values need to be swapped, such as is done in a number of commonly used Computer Science sorting algorithms. The typical high-level code is as follows: temp - num1; num1 - num2; num2 temp; This could be implemented on a line-by-line basis in assembly language using registers, but that would require two instructions for reach line of code as follows: mov eax,num1 mov temp, eax mov eax, num2 mov num1, eax mov eax, temp mov num2, eax Understandably, the above seems inefficient. Instead of using registers and mov instructions, another possibility is to use the stack. Not only is a runtime stack a way to save and restore values, it can also be useful in swapping two values. Another method of swapping two values is to use the exchange instruction. However, for this lab you will use the push and pop instructions to swap two values.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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The class I'm taking is assembly
I have attached the instructions. i have also attached my work. Can you please tell me how to fix it so I can successfully run and compile program in visual studio . Thank you so much for your help!
Transcribed Image Text:File
Projectweek4
cuit
View
aiyze
Slons
WindoW
Heip
Debug
x86
• Local Windows Debugger Auto
Seanlab4.asm* + x Solution Explorer
1
;start of program
2
.386
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4
. model flat,stdcall
6
.stack 4096
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8
.data
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eax"05"
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ebx"02"
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.code
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main PROC
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push "a"; pushes a value on to the stack
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рop eax
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; swap the contents in the registers eax & ebx
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push eax
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mov eax, ebx; moves contents from register eax to ebx
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main ENDP
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; end of program
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END main
Transcribed Image Text:In this lab task you will use the PUSH and POP instructions to manage the transfer of data to
and from the runtime stack.
Write a program that uses only PUSH and POP instructions to exchange the values in the
EAX and EBX registers.
Testing Specification
Store values into the EAX and EBX registers. Compile and run your program to validate that
your program sequence of statements exchanges the original register values.
Documentation Requirements
Be sure to provide a commented out header that describes your program. Include in your
header description the compiler that you used. Provide inline comments to document your
solution.
Background Discussion
Assume that two values need to be swapped, such as is done in a number of commonly used
Computer Science sorting algorithms. The typical high-level code is as follows:
temp - num1:
num1 - num2;
num2 = temp:
This could be implemented on a line-by-line basis in assembly language using registers, but
that would require two instructions for reach line of code as follows:
mov eax, num1
mov temp, eax
mov eax, num2
mov num1, eax
mov eax, temp
mov num2, eax
Understandably, the above seems inefficient. Instead of using registers and mov
instructions, another possibility is to use the stack. Not only is a runtime stack a way to save
and restore values, it can also be useful in swapping two values.
Another method of swapping two values is to use the exchange instruction. However, for
this lab you will use the push and pop instructions to swap two values.
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