Mips Labs Using SPIM - Lab 2 |
In this lab, we will try writing and executing a program that finds the minimum of a given set of elements by looping over the set.
Table of Contents |
The Program Template
Analysis of the Program Template
Filling in the Program
Executing the Program
Questions
Conclusion
The Program Template |
Download the source file from here: lab2_template.spim
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Analysis of the Program Template |
#Assembler Directives
.data
.word 7
.word 3
.word 17
.word 12
.word 30
.word 2
.word 5
.word 1
.word 16
.word 11
.text
.globl main
#$s0 contains the address of the first
#of the data
main:
lui $s0, 0x1001
ori $s0,$s0,0
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Filling in the Program |
Assume that you have an array of 10 elements with base address in $s0. Append to the template code already given the code necessary to find the minimum value from the array (by iterating over the array) and store that value in register $t0.
Note: you are free to use any MIPS assembly and instructions and pseudo instructions that are recognized by Spim, but in order to receive full credit you must use a loop.
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Executing the Program |
Once you have saved the program template, you can write the code, assuming that the base address is in $s0. There are 10 elements to be read, and the minimum of those to be found.
Details about executing the program can be found in the Lab 1 page.
Note:
Once you find that you have to make changes to your code, make the changes in a text editor, then reinitialize the simulator [Simulator -> Reinitialize], and load the file again [File->Open]
Questions |
In order to receive credit for this lab, you must submit your code to the TA, Yuly, via email: ysuvorov@cs.iastate.edu. Paste your code into the body of your email and make sure your subject line is "ComS 321, Lab2"
Conclusion |
In this lab, we have implemented a minimum-finding algorithm in MIPS assembly language and executed it.
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