MIPS lab help

I need help with this lab. As my professor does not really explain how to do thing in her lecture and expects us to figure out things on our own. So if you can provide a pseudo code for this lab, that'll be greatly appreciated. This lab is in mips language by the way. Thank you! This is the lab:

Lab Objective

In this lab, you will learn how to implement subroutines and manage data on the

stack.

.

Specification

This program will display a string and prompt the user to type the same string in a

given time limit. It will check if this string is identical to the given one and

whether the user made the time limit. If the user types in the prompt incorrectly or

does not finish the prompt in the given time limit, the game is over.

String Prompts

The strings that will be given to the user are contained in the .data segment defined

in the Lab5_test.asm file. The address of these strings will be part of the arguments

to your subroutines. When testing for string correctness, you will be checking

punctuation.

Timing

To monitor timing, you will be using syscall 30. This syscall gets the current system

time in milliseconds as a 64 bit value. It stores the upper 32 bits in $a1 and the

lower 32 bits in $a0.

The Stack

The stack is a data structure that we will be using in this lab. This will primarily

be used the handle the preservation of certain register values at the start of a

subroutine so that they can be restored at the end of a subroutine. The most notable

use of this will be preserving the jump and link return address, $ra, so that you can

navigate out of nested subroutines. In addition, the values in registers $s0 - $s7

must be preserved across subroutine calls.

Subroutines

Lab5.asm will contain the subroutines to display and check the string as well as keep

track of the time limit. You must implement all of the subroutines listed, and you

may create more of your own subroutines. If you plan on using any of the saved

registers, $s0 - $s7, you must save these registers appropriately on the stack (push

at the beginning of your subroutine, then pop at the end of the subroutine).

Nested Subroutines

Two of the following subroutines will be called from within another subroutine.

Specifically, compare_strings will be called from inside of check_user_input_string,

and compare_chars will be called from inside of compare_strings. In order to properly

execute these nested subroutines, you must properly use the stack to handle the

return address register, $ra.

#--------------------------------------------------------------------

# give_type_prompt

#

# input: $a0 - address of type prompt to be printed to user

#

# output: $v0 - lower 32 bit of time prompt was given in milliseconds

#--------------------------------------------------------------------

#--------------------------------------------------------------------

# check_user_input_string

#

# input: $a0 - address of type prompt printed to user

# $a1 - time type prompt was given to user

# $a2 - contains amount of time allowed for response

#

# output: $v0 - success or loss value (1 or 0)

#--------------------------------------------------------------------

#--------------------------------------------------------------------

# compare_strings

#

# input: $a0 - address of first string to compare

# $a1 - address of second string to compare

#

# output: $v0 - comparison result (1 == strings the same, 0 == strings not the same)

#--------------------------------------------------------------------

#--------------------------------------------------------------------

# compare_chars

#

# input: $a0 - first char to compare (contained in the least significant byte)

# $a1 - second char to compare (contained in the least significant byte)

#

# output: $v0 - comparison result (1 == chars the same, 0 == chars not the same)

#

#--------------------------------------------------------------------

Testing

Your program must work properly with the testing program provided (on Canvas).

Output

Your output format should appear as follows where the prompt is displayed next to

Type Prompt: and the user inputs their prompt beneath this.

Extra Credit

As extra credit, alter your compare_strings subroutine to not return a 0 if the user

input string only differs by punctuation or capitalization. It should still require

correct spelling and spacing. Ex. Hello, its me user input hello its me should

return a 1 from compare_strings.