TA: Loc Do
Due Sunday, Sep 16 , 2012 @ 23:59:59
Goals
This assignment is designed to give you some practice with MIPS and number system
Submission
Create a directory named “hw3” inside your working repository and put your solutions to problems 1 in hw3.txt, and problem 2 in stringlen.
It is important that you place your submission for hw3 inside this directory and not somewhere else, as when we pull submissions, we will look for your submission there. Then run these commands:
git add -A git commit -m "hw3 submission" git tag -f hw3 git push --tags origin master
Problem 1: Numbers, numbers everywhere
Fill in the blank of the text file hw3.txt
NOTE: Please keep the format of the text file.
Problem 2: MIPS
Get the file stringlen here
To run MIPS, you can download MARS here
.data msg1:.asciiz "Please insert text (max 20 characters): " msg2:.asciiz "\nThe length of the text is: " str1: .space 20 .text .globl main main: addi $v0, $v0,4 la $a0,msg1 syscall #print msg1 li $v0,8 la $a0,str1 addi $a1,$zero,20 syscall #get string 1 la $a0,str1 #pass address of str1 jal len len: #your code here exit: la $a0,msg2 li $v0,4 syscall move $a0,$t0 #output the results li $v0,1 syscall li $v0,10 syscall
In this template, you need to create a function to find the length of the input string.
NOTE: the null terminator '\0' is counted as 2 characters. For example: your input string is "cs61CNL0" where NL is the newline code and 0 the terminator (0 !)
Please insert text (max 20 characters): blablabla The length of the text is: 9 -- program is finished running -- Reset: reset completed. Please insert text (max 20 characters): cs61C is awesome! The length of the text is: 17 -- program is finished running -- Please insert text (max 20 characters): 000 The length of the text is: 3 -- program is finished running --