main.asm
sprintf.asm
tests.asm
#############################################################
# DO NOT MODIFY THIS FILE IN ANY WAY!!!
#############################################################
#############################################################
# This data block contains all of the inputs and outputs
# necessary to summarize the final grades component of the
# output.
#############################################################
.data
testset_format: .asciiz “Beginning to run tests to count the number of format specifiers.\n\n”
testset_intconv: .asciiz “Beginning to run tests to check the integer conversion to string.\n\n”
testset_sprintf: .asciiz “Beginning to run tests to verify the correctness of sprintf().\n\n”
menu_lead: .asciiz “Which function(s) are you ready to test? [0-3]\n”
menu_all: .asciiz ” 0. All of them\n”
menu_first: .asciiz ” 1. Count format specifiers\n”
menu_second: .asciiz ” 2. Convert int to string\n”
menu_third: .asciiz ” 3. sprintf\n\n”
invalid_input: .asciiz “Invalid selection. Try running again and entering a number 0-3.”
break: .asciiz “\n\n—————————————————-\n\n”
final_score: .asciiz “Your final scores are:\n”
format_score: .asciiz ” Number of format specifiers: ”
conv_score: .asciiz ” Converting int to string: ”
sprintf_score: .asciiz ” Correctness of sprintf(): ”
slash_max: .asciiz “/100\n”
slash_max2: .asciiz “/200\n”
newline_main: .asciiz “\n”
.text
.globl main
#############################################################
# The code below calls the three testing procedures from
# the tests.asm file, stores, and outputs the total points
# earned from this assignment.
#############################################################
main:
# Print menu
la $a0, menu_lead
li $v0, 4
syscall
la $a0, menu_all
syscall
la $a0, menu_first
syscall
la $a0, menu_second
syscall
la $a0, menu_third
syscall
# Get user input
li $v0, 5
syscall
# Validate that it’s between 0-3 inclusive
blt $v0, $zero, BAD_INPUT
bgt $v0, 3, BAD_INPUT
j AFTER_BAD_INPUT
BAD_INPUT:
la $a0, invalid_input
li $v0, 4
syscall
j EXIT
AFTER_BAD_INPUT:
# $t6 will store the user option
move $t6, $v0
# Jump to next test if user option == 2 or 3
beq $t6, 2, BEFORE_CONVERT_INT
beq $t6, 3, BEFORE_CONVERT_INT
# Back up user test option before calling the tests
subi $sp, $sp, 4
sw $t6, 0($sp)
# Run tests for number of format specifiers
la $a0, testset_format
li $v0, 4
syscall
jal PROC_TEST_COUNT_FORMAT_SPECIFIERS
# Recover user option
lw $t6, 0($sp)
addi $sp, $sp, 4
# put number of points for format specifiers into $t9
move $t9, $v0
BEFORE_CONVERT_INT:
# Jump to next test if user option == 1 or 3
beq $t6, 1, BEFORE_SPRINTF
beq $t6, 3, BEFORE_SPRINTF
# Back up points so far & user option before calling the next set of tests
subi $sp, $sp, 8
sw $t9, 0($sp)
sw $t6, 4($sp)
jal PROC_TEST_CONVERT_INT_TO_STRING
# Recover points earned so far
lw $t9, 0($sp)
lw $t6, 4($sp)
addi $sp, $sp, 8
# put number of points for conversion into $t8
move $t8, $v0
BEFORE_SPRINTF:
# Jump to print points if user option == 1 or 2
beq $t6, 1, PRINT_POINTS
beq $t6, 2, PRINT_POINTS
# Run tests for number of format specifiers
la $a0, testset_sprintf
li $v0, 4
syscall
# Back up points so far & user option before calling the next set of tests
subi $sp, $sp, 12
sw $t9, 0($sp)
sw $t8, 4($sp)
sw $t6, 8($sp)
jal PROC_TEST_SPRINTF
# Recover points earned so far
lw $t9, 0($sp)
lw $t8, 4($sp)
lw $t6, 8($sp)
addi $sp, $sp, 12
# put number of points for sprintf into $t7
move $t7, $v0
PRINT_POINTS:
# output final grades
la $a0, break
li $v0, 4
syscall
la $a0, final_score
syscall
FORMAT_SPEC_GRADE:
# Jump to next points output if user option == 2 or 3
beq $t6, 2, INT_TO_STRING_GRADE
beq $t6, 3, INT_TO_STRING_GRADE
# format specifiers score
la $a0, format_score
syscall
move $a0, $t9
li $v0, 1
syscall
la $a0, slash_max
li $v0, 4
syscall
INT_TO_STRING_GRADE:
# Jump to next points output if user option == 1 or 3
beq $t6, 1, SPRINTF_GRADE
beq $t6, 3, SPRINTF_GRADE
# integer to string conversion score
la $a0, conv_score
syscall
move $a0, $t8
li $v0, 1
syscall
la $a0, slash_max
li $v0, 4
syscall
SPRINTF_GRADE:
# Jump to exit if user option == 1 or 2
beq $t6, 1, EXIT
beq $t6, 2, EXIT
# sprintf score
la $a0, sprintf_score
syscall
move $a0, $t7
li $v0, 1
syscall
la $a0, slash_max2
li $v0, 4
syscall
EXIT:
# terminate program cleanly
li $v0, 10
syscall
## On my honor:
##
## – I have not discussed the C language code in my program with
## anyone other than my instructor or the teaching assistants
## assigned to this course.
##
## – I have not used C language code obtained from another student,
## the Internet, or any other unauthorized source, either modified
## or unmodified.
##
## – If any C language code or documentation used in my program
## was obtained from an authorized source, such as a text book or
## course notes, that has been clearly noted with a proper citation
## in the comments of my program.
##
## – I have not designed this program in such a way as to defeat or
## interfere with the normal operation of the grading code.
##
##
##
#############################################################
# This data block contains a ‘digits’ memory allocation
# that you can use to store any strings that you convert
# from integers. Remember to either clear it after use or
# null-terminate the strings that you save here!
#############################################################
.data
digits: .space 10
.text
.globl PROC_COUNT_FORMAT_SPECIFIERS
.globl PROC_CONVERT_INT_TO_STRING
.globl PROC_SPRINTF
.globl PROC_FIND_LENGTH_STRING
.globl PROC_FIND_NUM_DIGITS
.globl PROC_REVERSE_STRING
.globl PROC_CLEAR_DIGITS
#############################################################
# Given the address of a string, count the number of format
# specifiers that appear in that string
#
# Pre: $a0 contains the address of the string to evaluate
# Post: $v0 contains the number of format specifiers that
# were found in the input string
#############################################################
PROC_COUNT_FORMAT_SPECIFIERS:
# add your solution here
# return
jr $ra
#############################################################
# Given an integer, convert it into a string
#
# Pre: $a0 contains the integer that will be converted
# Post: $v0 contains the address of the newly-created string
#############################################################
PROC_CONVERT_INT_TO_STRING:
# add your solution here
# return
jr $ra
#############################################################
# Given the address of a string and a string which may or
# may not include format specifiers, write a formatted
# version of the string into the output register $v0
#
# Pre: $a0 contains the address of the string dest, where
# the final string will be written into
# $a1 contains the address of a format string, which
# may or may not include format specifiers, and which
# details the required final state of the output
# string
# $a2 contains an unsigned integer or the address of
# a string, or it is empty
# $a3 contains an unsigned integer or the address of
# a string, or it is empty
# Post: $a0 contains the address of the formatted dest,
# including null terminator
# $v0 contains the length of the string written into
# dest, not including null terminator
#############################################################
PROC_SPRINTF:
# add your solution here
# return
jr $ra
#############################################################
# This procedure will find the length of a provided string
# by counting characters until the null terminator is
# reached
#
# Pre: $a0 contains the string to evaluate
# Post: $v0 contains the length of the string
#############################################################
PROC_FIND_LENGTH_STRING:
# prologue
subi $sp, $sp, 4
sw $ra, 0($sp)
# function body
move $t2, $a0 # $t2 is the current char we’re pointing to
li $t4, 0 # $t4 is my length counter for my_string
# Loop until we find the null terminator
LOOP_FIND_NULL_BYTE_LENGTH:
lb $t1, 0($t2) # $t1 is the character loaded from offset $t2
beq $t1, $zero, FOUND_NULL_BYTE_LENGTH
addi $t4, $t4, 1 # increment length counter
addi $t2, $t2, 1 # increment character pointer
j LOOP_FIND_NULL_BYTE_LENGTH
FOUND_NULL_BYTE_LENGTH:
# at this point, $t2 is pointed at \0
move $v0, $t4
# epilogue
lw $ra, 0($sp)
addi $sp, $sp, 4
# return
jr $ra
#############################################################
# This procedure will determine the number of digits in the
# provided integer input via iterative division by 10.
#
# Pre: $a0 contains the integer to evaluate
# Post: $v0 contains the number of digits in that integer
#############################################################
PROC_FIND_NUM_DIGITS:
# prologue
subi $sp, $sp, 4
sw $ra, 0($sp)
# function body
li $t0, 10 # load a 10 into $t0 for the division
li $t5, 0 # $t5 will hold the counter for number of digits
move $t6, $a0 # $t6 will hold the result of the iterative division
NUM_DIGITS_LOOP:
divu $t6, $t0 # divide the number by 10
addi $t5, $t5, 1
mflo $t6 # move quotient back into $t6
beq $t6, $zero, FOUND_NUM_DIGITS # if the quotient was 0, $t5 stores the number of digits
j NUM_DIGITS_LOOP
FOUND_NUM_DIGITS:
move $v0, $t5 # copy the number of digits $t5 into $v0 to return
# epilogue
lw $ra, 0($sp)
addi $sp, $sp, 4
# return
jr $ra
#############################################################
# This procedure will reverse the characters in a string in-
# place when given the addresses of the first and last
# characters in the string.
#
# Pre: $a0 contains the address of the first character
# $a1 contains the address of the last character
# Post: $a0 contains the first character of the reversed
# string
#############################################################
PROC_REVERSE_STRING:
# prologue
subi $sp, $sp, 4
sw $ra, 0($sp)
# function body
move $t0, $a0 # move the pointer to the first char into $t0
move $t2, $a1 # move the pointer to the last char into $t2
# Loop until the pointers cross
LOOP_REVERSE:
lb $t9, 0($t2) # backing up the $t2 position char into $t9
lb $t8, 0($t0) # load the $t0 position char into $t8
sb $t8, 0($t2) # write the begin char into $t2 position
sb $t9, 0($t0) # write the end char into $t0 position
# increment and decrement the pointers
addi $t0, $t0, 1
subi $t2, $t2, 1
ble $t2, $t0, END_OF_REVERSE_LOOP
j LOOP_REVERSE
END_OF_REVERSE_LOOP:
# epilogue
lw $ra, 0($sp)
addi $sp, $sp, 4
# return
jr $ra
#############################################################
# This procedure will clear the contents of the ‘digits’
# memory allocation that is defined in the data block of
# this file.
#
# Pre: None
# Post: The ‘digits’ section of memory is cleared to all 0s
#############################################################
PROC_CLEAR_DIGITS:
# prologue
subi $sp, $sp, 4
sw $ra, 0($sp)
# function body
la $t0, digits # get the address of the digits space
li $t1, 10 # we need to loop 10 times
li $t2, 0 # and the loop counter starts at 0
CLEAR_LOOP:
sb $zero, 0($t0) # write all zeros into #t0
addi $t0, $t0, 1 # move to the next char space
addi $t2, $t2, 1 # increment loop counter
beq $t2, $t1, END_CLEAR # break out of the loop after 10 writes
j CLEAR_LOOP
END_CLEAR:
# epilogue
lw $ra, 0($sp)
addi $sp, $sp, 4
# Return
jr $ra
#############################################################
#############################################################
# DO NOT MODIFY THIS FILE IN ANY WAY!!!
#############################################################
#############################################################
# This data block contains all of the inputs and outputs
# necessary to run the test cases.
#############################################################
.data
your_answer: .asciiz “Your answer was: ”
your_length: .asciiz “The length that you returned was: ”
newline: .asciiz “\n”
lenpoints: .asciiz “Your score on the length tests is: ”
convpoints: .asciiz “Your score on the conversion tests is: ”
printpoints: .asciiz “Your score on the sprintf() tests is: ”
slash: .asciiz “/”
test1msg: .asciiz “Testing string ‘This is a lovely test’.\n”
test1: .asciiz “This is a lovely test”
test1ans: .word 0
test1pass: .asciiz “Correct, ‘This is a lovely test’ has 0 format specifiers. 10/10\n\n”
test1fail: .asciiz “No, ‘This is a lovely test’ has 0 format specifiers. 0/10\n\n”
test2msg: .asciiz “Testing string ‘I have one %u format specifier’.\n”
test2: .asciiz “I have one %u format specifier”
test2ans: .word 1
test2pass: .asciiz “Correct, ‘I have one %u format specifier’ has 1 format specifier. 10/10\n\n”
test2fail: .asciiz “No, ‘I have one %u format specifier’ has 1 format specifier. 0/10\n\n”
test3msg: .asciiz “Testing string ‘I have %s two format %u specifiers’.\n”
test3: .asciiz “I have %s two format %u specifiers”
test3ans: .word 2
test3pass: .asciiz “Correct, ‘I have %s two format %u specifiers’ has 2 format specifiers. 10/10\n\n”
test3fail: .asciiz “No, ‘I have %s two format %u specifiers’ has 2 format specifiers. 0/10\n\n”
test4msg: .asciiz “Testing string ‘Writing tests for MIPS is awful’.\n”
test4: .asciiz “Writing tests for MIPS is awful”
test4ans: .word 0
test4pass: .asciiz “Correct, ‘Writing tests for MIPS is awful’ has 0 format specifiers. 10/10\n\n”
test4fail: .asciiz “No, ‘Writing tests for MIPS is awful’ has 0 format specifiers. 0/10\n\n”
test5msg: .asciiz “Testing string ‘La Villa Strangiato’.\n”
test5: .asciiz “La Villa Strangiato”
test5ans: .word 0
test5pass: .asciiz “Correct, ‘La Villa Strangiato’ has 0 format specifiers. 10/10\n\n”
test5fail: .asciiz “No, ‘La Villa Strangiato’ has 0 format specifiers. 0/10\n\n”
test6msg: .asciiz “Testing string ‘8 + 12 = %u’.\n”
test6: .asciiz “8 + 12 = %u”
test6ans: .word 1
test6pass: .asciiz “Correct, ‘8 + 12 = %u’ has 1 format specifier. 10/10\n\n”
test6fail: .asciiz “No, ‘8 + 12 = %u’ has 1 format specifier. 0/10\n\n”
test7msg: .asciiz “Testing string ’14 * %u = %u’.\n”
test7: .asciiz “14 * %u = %u”
test7ans: .word 2
test7pass: .asciiz “Correct, ’14 * %u = %u’ has 2 format specifiers. 10/10\n\n”
test7fail: .asciiz “No, ’14 * %u = %u’ has 2 format specifiers. 0/10\n\n”
test8msg: .asciiz “Testing string ‘My favorite number is %u’.\n”
test8: .asciiz “My favorite number is %u”
test8ans: .word 1
test8pass: .asciiz “Correct, ‘My favorite number is %u’ has 1 format specifier. 10/10\n\n”
test8fail: .asciiz “No, ‘My favorite number is %u’ has 1 format specifier. 0/10\n\n”
test9msg: .asciiz “Testing string ‘I haven’t used %s in a test recently’.\n”
test9: .asciiz “I haven’t used %s in a test recently”
test9ans: .word 1
test9pass: .asciiz “Correct, ‘I haven’t used %s in a test recently’ has 1 format specifier. 10/10\n\n”
test9fail: .asciiz “No, ‘I haven’t used %s in a test recently’ has 1 format specifier. 0/10\n\n”
test10msg: .asciiz “Testing string ‘This is the last test of the category’.\n”
test10: .asciiz “This is the last test of the category”
test10ans: .word 0
test10pass: .asciiz “Correct, ‘This is the last test of the category’ has 0 format specifiers. 10/10\n\n”
test10fail: .asciiz “No, ‘This is the last test of the category’ has 0 format specifiers. 0/10\n\n”
test11msg: .asciiz “Testing integer 12345.\n”
test11: .word 12345
test11ans: .asciiz “12345”
test11pass: .asciiz “Correct, you have converted 12345 into ‘12345’ successfully. 10/10\n\n”
test11fail: .asciiz “No, 12345 should be converted into ‘12345’. 0/10\n\n”
test12msg: .asciiz “Testing integer 7.\n”
test12: .word 7
test12ans: .asciiz “7”
test12pass: .asciiz “Correct, you have converted 7 into ‘7’ successfully. 10/10\n\n”
test12fail: .asciiz “No, 7 should be converted into ‘7’. 0/10\n\n”
test13msg: .asciiz “Testing integer 600.\n”
test13: .word 600
test13ans: .asciiz “600”
test13pass: .asciiz “Correct, you have converted 600 into ‘600’ successfully. 10/10\n\n”
test13fail: .asciiz “No, 600 should be converted into ‘600’. 0/10\n\n”
test14msg: .asciiz “Testing integer 42.\n”
test14: .word 42
test14ans: .asciiz “42”
test14pass: .asciiz “Correct, you have converted 42 into ’42’ successfully. 10/10\n\n”
test14fail: .asciiz “No, 42 should be converted into ’42’. 0/10\n\n”
test15msg: .asciiz “Testing integer 54321.\n”
test15: .word 54321
test15ans: .asciiz “54321”
test15pass: .asciiz “Correct, you have converted 54321 into ‘54321’ successfully. 10/10\n\n”
test15fail: .asciiz “No, 54321 should be converted into ‘54321’. 0/10\n\n”
test16msg: .asciiz “Testing integer 80.\n”
test16: .word 80
test16ans: .asciiz “80”
test16pass: .asciiz “Correct, you have converted 80 into ’80’ successfully. 10/10\n\n”
test16fail: .asciiz “No, 80 should be converted into ’80’. 0/10\n\n”
test17msg: .asciiz “Testing integer 123.\n”
test17: .word 123
test17ans: .asciiz “123”
test17pass: .asciiz “Correct, you have converted 123 into ‘123’ successfully. 10/10\n\n”
test17fail: .asciiz “No, 123 should be converted into ‘123’. 0/10\n\n”
test18msg: .asciiz “Testing integer 10005.\n”
test18: .word 10005
test18ans: .asciiz “10005”
test18pass: .asciiz “Correct, you have converted 10005 into ‘10005’ successfully. 10/10\n\n”
test18fail: .asciiz “No, 10005 should be converted into ‘10005’. 0/10\n\n”
test19msg: .asciiz “Testing integer 10050.\n”
test19: .word 10050
test19ans: .asciiz “10050”
test19pass: .asciiz “Correct, you have converted 10050 into ‘10050’ successfully. 10/10\n\n”
test19fail: .asciiz “No, 12345 should be converted into ‘10050’. 0/10\n\n”
test20msg: .asciiz “Testing integer 12045.\n”
test20: .word 12045
test20ans: .asciiz “12045”
test20pass: .asciiz “Correct, you have converted 12045 into ‘12045’ successfully. 10/10\n\n”
test20fail: .asciiz “No, 12045 should be converted into ‘12045’. 0/10\n\n”
test21msg: .asciiz “Testing string ‘I have one %u format specifier’.\n”
test21msgin: .asciiz “Format specifier input is integer 12345.\n”
test21: .asciiz “I have one %u format specifier”
test21space: .space 100
test21in1: .word 12345
test21ans: .asciiz “I have one 12345 format specifier”
test21len: .word 33
test21pass: .asciiz “Correct, you have created the string ‘I have one 12345 format specifier’. 10/10\n”
test21fail: .asciiz “No, you should have created the string ‘I have one 12345 format specifier’. 0/10\n”
test21pass2: .asciiz “Correct, your string has length 33. 10/10\n\n”
test21fail2: .asciiz “No, your function should return length 33. 0/10\n\n”
test22msg: .asciiz “Testing string ‘This is a lovely test’.\n”
test22msgin: .asciiz “No format specifier inputs are needed.\n”
test22: .asciiz “This is a lovely test”
test22space: .space 100
test22ans: .asciiz “This is a lovely test”
test22len: .word 21
test22pass: .asciiz “Correct, you have created the string ‘This is a lovely test’. 10/10\n”
test22fail: .asciiz “No, you should have created the string ‘This is a lovely test’. 0/10\n”
test22pass2: .asciiz “Correct, your string has length 21. 10/10\n\n”
test22fail2: .asciiz “No, your function should return length 21. 0/10\n\n”
test23msg: .asciiz “Testing string ‘I haven’t used %s in a test recently’.\n”
test23msgin: .asciiz “Format specifier input is string ‘this is so fun’.\n”
test23: .asciiz “I haven’t used %s in a test recently”
test23space: .space 100
test23in1: .asciiz “this is so fun”
test23ans: .asciiz “I haven’t used this is so fun in a test recently”
test23len: .word 48
test23pass: .asciiz “Correct, you have created the string ‘I haven’t used this is so fun in a test recently’. 10/10\n”
test23fail: .asciiz “No, you should have created the string ‘I haven’t used this is so fun in a test recently’. 0/10\n”
test23pass2: .asciiz “Correct, your string has length 48. 10/10\n\n”
test23fail2: .asciiz “No, your function should return length 48. 0/10\n\n”
test24msg: .asciiz “Testing string ‘I have %s two format %u specifiers’.\n”
test24msgin: .asciiz “Format specifier inputs are string ‘parameter one’ and integer 1001.\n”
test24: .asciiz “I have %s two format %u specifiers”
test24space: .space 100
test24in1: .asciiz “parameter one”
test24in2: .word 1001
test24ans: .asciiz “I have parameter one two format 1001 specifiers”
test24len: .word 47
test24pass: .asciiz “Correct, you have created the string ‘I have parameter one two format 1001 specifiers’. 10/10\n”
test24fail: .asciiz “No, you should have created the string ‘I have parameter one two format 1001 specifiers’. 0/10\n”
test24pass2: .asciiz “Correct, your string has length 47. 10/10\n\n”
test24fail2: .asciiz “No, your function should return length 47. 0/10\n\n”
test25msg: .asciiz “Testing string ‘Writing tests for MIPS is awful’.\n”
test25msgin: .asciiz “No format specifier inputs are needed.\n”
test25: .asciiz “Writing tests for MIPS is awful”
test25space: .space 100
test25ans: .asciiz “Writing tests for MIPS is awful”
test25len: .word 31
test25pass: .asciiz “Correct, you have created the string ‘Writing tests for MIPS is awful’. 10/10\n”
test25fail: .asciiz “No, you should have created the string ‘Writing tests for MIPS is awful’. 0/10\n”
test25pass2: .asciiz “Correct, your string has length 31. 10/10\n\n”
test25fail2: .asciiz “No, your function should return length 31. 0/10\n\n”
test26msg: .asciiz “Testing string ‘La Villa Strangiato’.\n”
test26msgin: .asciiz “No format specifier inputs are needed.\n”
test26: .asciiz “La Villa Strangiato”
test26space: .space 100
test26ans: .asciiz “La Villa Strangiato”
test26len: .word 19
test26pass: .asciiz “Correct, you have created the string ‘La Villa Strangiato’. 10/10\n”
test26fail: .asciiz “No, you should have created the string ‘La Villa Strangiato’. 0/10\n”
test26pass2: .asciiz “Correct, your string has length 19. 10/10\n\n”
test26fail2: .asciiz “No, your function should return length 19. 0/10\n\n”
test27msg: .asciiz “Testing string ‘8 + 12 = %u’.\n”
test27msgin: .asciiz “Format specifier input is integer 20.\n”
test27: .asciiz “8 + 12 = %u”
test27space: .space 100
test27in1: .word 20
test27ans: .asciiz “8 + 12 = 20”
test27len: .word 11
test27pass: .asciiz “Correct, you have created the string ‘8 + 12 = 20’. 10/10\n”
test27fail: .asciiz “No, you should have created the string ‘8 + 12 = 20′. 0/10\n”
test27pass2: .asciiz “Correct, your string has length 11. 10/10\n\n”
test27fail2: .asciiz “No, your function should return length 11. 0/10\n\n”
test28msg: .asciiz “Testing string ’14 * %u = %u’.\n”
test28msgin: .asciiz “Format specifier inputs are integer 17 and integer 238.\n”
test28: .asciiz “14 * %u = %u”
test28space: .space 100
test28in1: .word 17
test28in2: .word 238
test28ans: .asciiz “14 * 17 = 238”
test28len: .word 13
test28pass: .asciiz “Correct, you have created the string ’14 * 17 = 238′. 10/10\n”
test28fail: .asciiz “No, you should have created the string ’14 * 17 = 238′. 0/10\n”
test28pass2: .asciiz “Correct, your string has length 13. 10/10\n\n”
test28fail2: .asciiz “No, your function should return length 13. 0/10\n\n”
test29msg: .asciiz “Testing string ‘My favorite number is %u’.\n”
test29msgin: .asciiz “Format specifier input is integer 42.\n”
test29: .asciiz “My favorite number is %u”
test29space: .space 100
test29in1: .word 42
test29ans: .asciiz “My favorite number is 42”
test29len: .word 24
test29pass: .asciiz “Correct, you have created the string ‘My favorite number is 42’. 10/10\n”
test29fail: .asciiz “No, you should have created the string ‘My favorite number is 42’. 0/10\n”
test29pass2: .asciiz “Correct, your string has length 24. 10/10\n\n”
test29fail2: .asciiz “No, your function should return length 24. 0/10\n\n”
test30msg: .asciiz “Testing string ‘This is the last test of the category’.\n”
test30msgin: .asciiz “No format specifier inputs are needed.\n”
test30: .asciiz “This is the last test of the category”
test30space: .space 100
test30ans: .asciiz “This is the last test of the category”
test30len: .word 37
test30pass: .asciiz “Correct, you have created the string ‘This is the last test of the category’. 10/10\n”
test30fail: .asciiz “No, you should have created the string ‘This is the last test of the category’. 0/10\n”
test30pass2: .asciiz “Correct, your string has length 37. 10/10\n\n”
test30fail2: .asciiz “No, your function should return length 37. 0/10\n\n”
.text
.globl PROC_TEST_COUNT_FORMAT_SPECIFIERS
.globl PROC_TEST_CONVERT_INT_TO_STRING
.globl PROC_TEST_SPRINTF
###############################################################
# This procedure runs the tests to verify the correctness of
# COUNT_FORMAT_SPECIFIERS.
#
# Post: $v0 contains the total points earned out of 100
###############################################################
PROC_TEST_COUNT_FORMAT_SPECIFIERS:
# prologue
subi $sp, $sp, 4
sw $ra, 0($sp)
# procedure body
# initialize points to 0 in $t9
li $t9, 0
TEST_1:
# display string to test
la $a0, test1msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the format specifier count procedure
la $a0, test1
jal PROC_COUNT_FORMAT_SPECIFIERS
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness
lw $t8, test1ans
bne $t0, $t8, TEST_1_INCORRECT
# if correct, print that it is and allocate points
TEST_1_CORRECT:
la $a0, test1pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_2
# if incorrect, print that it is not
TEST_1_INCORRECT:
la $a0, test1fail
li $v0, 4
syscall
TEST_2:
# display string to test
la $a0, test2msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the format specifier count procedure
la $a0, test2
jal PROC_COUNT_FORMAT_SPECIFIERS
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness
lw $t8, test2ans
bne $t0, $t8, TEST_2_INCORRECT
# if correct, print that it is and allocate points
TEST_2_CORRECT:
la $a0, test2pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_3
# if incorrect, print that it is not
TEST_2_INCORRECT:
la $a0, test2fail
li $v0, 4
syscall
TEST_3:
# display string to test
la $a0, test3msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the format specifier count procedure
la $a0, test3
jal PROC_COUNT_FORMAT_SPECIFIERS
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness
lw $t8, test3ans
bne $t0, $t8, TEST_3_INCORRECT
# if correct, print that it is and allocate points
TEST_3_CORRECT:
la $a0, test3pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_4
# if incorrect, print that it is not
TEST_3_INCORRECT:
la $a0, test3fail
li $v0, 4
syscall
TEST_4:
# display string to test
la $a0, test4msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the format specifier count procedure
la $a0, test4
jal PROC_COUNT_FORMAT_SPECIFIERS
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness
lw $t8, test4ans
bne $t0, $t8, TEST_4_INCORRECT
# if correct, print that it is and allocate points
TEST_4_CORRECT:
la $a0, test4pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_5
# if incorrect, print that it is not
TEST_4_INCORRECT:
la $a0, test4fail
li $v0, 4
syscall
TEST_5:
# display string to test
la $a0, test5msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the format specifier count procedure
la $a0, test5
jal PROC_COUNT_FORMAT_SPECIFIERS
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness
lw $t8, test5ans
bne $t0, $t8, TEST_5_INCORRECT
# if correct, print that it is and allocate points
TEST_5_CORRECT:
la $a0, test5pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_6
# if incorrect, print that it is not
TEST_5_INCORRECT:
la $a0, test5fail
li $v0, 4
syscall
TEST_6:
# display string to test
la $a0, test6msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the format specifier count procedure
la $a0, test6
jal PROC_COUNT_FORMAT_SPECIFIERS
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness
lw $t8, test6ans
bne $t0, $t8, TEST_6_INCORRECT
# if correct, print that it is and allocate points
TEST_6_CORRECT:
la $a0, test6pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_7
# if incorrect, print that it is not
TEST_6_INCORRECT:
la $a0, test6fail
li $v0, 4
syscall
TEST_7:
# display string to test
la $a0, test7msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the format specifier count procedure
la $a0, test7
jal PROC_COUNT_FORMAT_SPECIFIERS
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness
lw $t8, test7ans
bne $t0, $t8, TEST_7_INCORRECT
# if correct, print that it is and allocate points
TEST_7_CORRECT:
la $a0, test7pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_8
# if incorrect, print that it is not
TEST_7_INCORRECT:
la $a0, test7fail
li $v0, 4
syscall
TEST_8:
# display string to test
la $a0, test8msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the format specifier count procedure
la $a0, test8
jal PROC_COUNT_FORMAT_SPECIFIERS
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness
lw $t8, test8ans
bne $t0, $t8, TEST_8_INCORRECT
# if correct, print that it is and allocate points
TEST_8_CORRECT:
la $a0, test8pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_9
# if incorrect, print that it is not
TEST_8_INCORRECT:
la $a0, test8fail
li $v0, 4
syscall
TEST_9:
# display string to test
la $a0, test9msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the format specifier count procedure
la $a0, test9
jal PROC_COUNT_FORMAT_SPECIFIERS
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness
lw $t8, test9ans
bne $t0, $t8, TEST_9_INCORRECT
# if correct, print that it is and allocate points
TEST_9_CORRECT:
la $a0, test9pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_10
# if incorrect, print that it is not
TEST_9_INCORRECT:
la $a0, test9fail
li $v0, 4
syscall
TEST_10:
# display string to test
la $a0, test10msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the format specifier count procedure
la $a0, test10
jal PROC_COUNT_FORMAT_SPECIFIERS
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness
lw $t8, test10ans
bne $t0, $t8, TEST_10_INCORRECT
# if correct, print that it is and allocate points
TEST_10_CORRECT:
la $a0, test10pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TOTAL_POINTS_LEN
# if incorrect, print that it is not
TEST_10_INCORRECT:
la $a0, test10fail
li $v0, 4
syscall
# display final score
TOTAL_POINTS_LEN:
la $a0, lenpoints
li $v0, 4
syscall
move $a0, $t9
li $v0, 1
syscall
la $a0, slash
li $v0, 4
syscall
li $a0, 100
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
syscall
syscall
# move point total into $v0 to return
move $v0, $t9
# epilogue
lw $ra, 0($sp)
addi $sp, $sp, 4
# Return
jr $ra
###############################################################
# This procedure runs the tests to verify the correctness of
# CONVERT_INT_TO_STRING.
#
# Post: $v0 contains the total points earned out of 100
###############################################################
PROC_TEST_CONVERT_INT_TO_STRING:
# prologue
subi $sp, $sp, 4
sw $ra, 0($sp)
# procedure body
# initialize points to 0 in $t9
li $t9, 0
TEST_11:
# reset digits space
jal PROC_CLEAR_DIGITS
# display integer to test
la $a0, test11msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that integer to the conversion procedure
lw $a0, test11
jal PROC_CONVERT_INT_TO_STRING
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# load correct answer
la $a1, test11ans
# check for correctness
move $a0, $t0
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_11_INCORRECT
# if correct, print that it is and allocate points
TEST_11_CORRECT:
la $a0, test11pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_12
# if incorrect, print that it is not
TEST_11_INCORRECT:
la $a0, test11fail
li $v0, 4
syscall
TEST_12:
# reset digits space
jal PROC_CLEAR_DIGITS
# display integer to test
la $a0, test12msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that integer to the conversion procedure
lw $a0, test12
jal PROC_CONVERT_INT_TO_STRING
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# load correct answer
la $a1, test12ans
# check for correctness
move $a0, $t0
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_12_INCORRECT
# if correct, print that it is and allocate points
TEST_12_CORRECT:
la $a0, test12pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_13
# if incorrect, print that it is not
TEST_12_INCORRECT:
la $a0, test12fail
li $v0, 4
syscall
TEST_13:
# reset digits space
jal PROC_CLEAR_DIGITS
# display integer to test
la $a0, test13msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that integer to the conversion procedure
lw $a0, test13
jal PROC_CONVERT_INT_TO_STRING
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# load correct answer
la $a1, test13ans
# check for correctness
move $a0, $t0
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_13_INCORRECT
# if correct, print that it is and allocate points
TEST_13_CORRECT:
la $a0, test13pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_14
# if incorrect, print that it is not
TEST_13_INCORRECT:
la $a0, test13fail
li $v0, 4
syscall
TEST_14:
# reset digits space
jal PROC_CLEAR_DIGITS
# display integer to test
la $a0, test14msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that integer to the conversion procedure
lw $a0, test14
jal PROC_CONVERT_INT_TO_STRING
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# load correct answer
la $a1, test14ans
# check for correctness
move $a0, $t0
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_14_INCORRECT
# if correct, print that it is and allocate points
TEST_14_CORRECT:
la $a0, test14pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_15
# if incorrect, print that it is not
TEST_14_INCORRECT:
la $a0, test14fail
li $v0, 4
syscall
TEST_15:
# reset digits space
jal PROC_CLEAR_DIGITS
# display integer to test
la $a0, test15msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that integer to the conversion procedure
lw $a0, test15
jal PROC_CONVERT_INT_TO_STRING
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# load correct answer
la $a1, test15ans
# check for correctness
move $a0, $t0
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_15_INCORRECT
# if correct, print that it is and allocate points
TEST_15_CORRECT:
la $a0, test15pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_16
# if incorrect, print that it is not
TEST_15_INCORRECT:
la $a0, test15fail
li $v0, 4
syscall
TEST_16:
# reset digits space
jal PROC_CLEAR_DIGITS
# display integer to test
la $a0, test16msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that integer to the conversion procedure
lw $a0, test16
jal PROC_CONVERT_INT_TO_STRING
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# load correct answer
la $a1, test16ans
# check for correctness
move $a0, $t0
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_16_INCORRECT
# if correct, print that it is and allocate points
TEST_16_CORRECT:
la $a0, test16pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_17
# if incorrect, print that it is not
TEST_16_INCORRECT:
la $a0, test16fail
li $v0, 4
syscall
TEST_17:
# reset digits space
jal PROC_CLEAR_DIGITS
# display integer to test
la $a0, test17msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that integer to the conversion procedure
lw $a0, test17
jal PROC_CONVERT_INT_TO_STRING
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# load correct answer
la $a1, test17ans
# check for correctness
move $a0, $t0
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_17_INCORRECT
# if correct, print that it is and allocate points
TEST_17_CORRECT:
la $a0, test17pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_18
# if incorrect, print that it is not
TEST_17_INCORRECT:
la $a0, test17fail
li $v0, 4
syscall
TEST_18:
# reset digits space
jal PROC_CLEAR_DIGITS
# display integer to test
la $a0, test18msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that integer to the conversion procedure
lw $a0, test18
jal PROC_CONVERT_INT_TO_STRING
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# load correct answer
la $a1, test18ans
# check for correctness
move $a0, $t0
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_18_INCORRECT
# if correct, print that it is and allocate points
TEST_18_CORRECT:
la $a0, test18pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_19
# if incorrect, print that it is not
TEST_18_INCORRECT:
la $a0, test18fail
li $v0, 4
syscall
TEST_19:
# reset digits space
jal PROC_CLEAR_DIGITS
# display integer to test
la $a0, test19msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that integer to the conversion procedure
lw $a0, test19
jal PROC_CONVERT_INT_TO_STRING
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# load correct answer
la $a1, test19ans
# check for correctness
move $a0, $t0
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_19_INCORRECT
# if correct, print that it is and allocate points
TEST_19_CORRECT:
la $a0, test19pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_20
# if incorrect, print that it is not
TEST_19_INCORRECT:
la $a0, test19fail
li $v0, 4
syscall
TEST_20:
# reset digits space
jal PROC_CLEAR_DIGITS
# display integer to test
la $a0, test20msg
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that integer to the conversion procedure
lw $a0, test20
jal PROC_CONVERT_INT_TO_STRING
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the answer to $t0
move $t0, $v0
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
move $a0, $t0
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# load correct answer
la $a1, test20ans
# check for correctness
move $a0, $t0
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_20_INCORRECT
# if correct, print that it is and allocate points
TEST_20_CORRECT:
la $a0, test20pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TOTAL_POINTS_CONVERT
# if incorrect, print that it is not
TEST_20_INCORRECT:
la $a0, test20fail
li $v0, 4
syscall
# display final score
TOTAL_POINTS_CONVERT:
la $a0, convpoints
li $v0, 4
syscall
move $a0, $t9
li $v0, 1
syscall
la $a0, slash
li $v0, 4
syscall
li $a0, 100
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
syscall
syscall
# move point total into $v0 to return
move $v0, $t9
# epilogue
lw $ra, 0($sp)
addi $sp, $sp, 4
# Return
jr $ra
###############################################################
# This procedure runs the tests to verify the correctness of
# SPRINTF.
#
# Post: $v0 contains the total points earned out of 200
###############################################################
PROC_TEST_SPRINTF:
# prologue
subi $sp, $sp, 4
sw $ra, 0($sp)
# function body
# initialize points to 0 in $t9
li $t9, 0
TEST_21:
# display string to test
la $a0, test21msg
li $v0, 4
syscall
# display inputs to test
la $a0, test21msgin
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the sprintf procedure
la $a0, test21space
la $a1, test21
lw $a2, test21in1
li $a3, 0
jal PROC_SPRINTF
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the length answer to $t6
move $t6, $v0
# load the solution
la $t1, test21ans
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
la $a0, test21space
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# display the length provided by the function
la $a0, your_length
li $v0, 4
syscall
move $a0, $t6
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness of string contents
la $a0, test21space
la $a1, test21ans
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_21_INCORRECT
# if the string is correct, print that it is and allocate points
TEST_21_CORRECT:
la $a0, test21pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_21_PART_2
# if the string is incorrect, print that it is not
TEST_21_INCORRECT:
la $a0, test21fail
li $v0, 4
syscall
# test that the length of the string is correct
TEST_21_PART_2:
lw $t5, test21len
bne $t5, $t6, TEST_21_INCORRECT_2
# if the string length is correct, print that it is and allocate points
TEST_21_CORRECT_2:
la $a0, test21pass2
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_22
# if the string length is incorrect, print that it is not
TEST_21_INCORRECT_2:
la $a0, test21fail2
li $v0, 4
syscall
TEST_22:
# display string to test
la $a0, test22msg
li $v0, 4
syscall
# display inputs to test
la $a0, test22msgin
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the sprintf procedure
la $a0, test22space
la $a1, test22
li $a2, 0
li $a3, 0
jal PROC_SPRINTF
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the length answer to $t6
move $t6, $v0
# load the solution
la $t1, test22ans
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
la $a0, test22space
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# display the length provided by the function
la $a0, your_length
li $v0, 4
syscall
move $a0, $t6
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness of string contents
la $a0, test22space
la $a1, test22ans
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_22_INCORRECT
# if the string is correct, print that it is and allocate points
TEST_22_CORRECT:
la $a0, test22pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_22_PART_2
# if the string is incorrect, print that it is not
TEST_22_INCORRECT:
la $a0, test22fail
li $v0, 4
syscall
# test that the length of the string is correct
TEST_22_PART_2:
lw $t5, test22len
bne $t5, $t6, TEST_22_INCORRECT_2
# if the string length is correct, print that it is and allocate points
TEST_22_CORRECT_2:
la $a0, test22pass2
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_23
# if the string length is incorrect, print that it is not
TEST_22_INCORRECT_2:
la $a0, test22fail2
li $v0, 4
syscall
TEST_23:
# display string to test
la $a0, test23msg
li $v0, 4
syscall
# display inputs to test
la $a0, test23msgin
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the sprintf procedure
la $a0, test23space
la $a1, test23
la $a2, test23in1
li $a3, 0
jal PROC_SPRINTF
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the length answer to $t6
move $t6, $v0
# load the solution
la $t1, test23ans
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
la $a0, test23space
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# display the length provided by the function
la $a0, your_length
li $v0, 4
syscall
move $a0, $t6
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness of string contents
la $a0, test23space
la $a1, test23ans
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_23_INCORRECT
# if the string is correct, print that it is and allocate points
TEST_23_CORRECT:
la $a0, test23pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_23_PART_2
# if the string is incorrect, print that it is not
TEST_23_INCORRECT:
la $a0, test23fail
li $v0, 4
syscall
# test that the length of the string is correct
TEST_23_PART_2:
lw $t5, test23len
bne $t5, $t6, TEST_23_INCORRECT_2
# if the string length is correct, print that it is and allocate points
TEST_23_CORRECT_2:
la $a0, test23pass2
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_24
# if the string length is incorrect, print that it is not
TEST_23_INCORRECT_2:
la $a0, test23fail2
li $v0, 4
syscall
TEST_24:
# display string to test
la $a0, test24msg
li $v0, 4
syscall
# display inputs to test
la $a0, test24msgin
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the sprintf procedure
la $a0, test24space
la $a1, test24
la $a2, test24in1
lw $a3, test24in2
jal PROC_SPRINTF
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the length answer to $t6
move $t6, $v0
# load the solution
la $t1, test24ans
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
la $a0, test24space
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# display the length provided by the function
la $a0, your_length
li $v0, 4
syscall
move $a0, $t6
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness of string contents
la $a0, test24space
la $a1, test24ans
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_24_INCORRECT
# if the string is correct, print that it is and allocate points
TEST_24_CORRECT:
la $a0, test24pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_24_PART_2
# if the string is incorrect, print that it is not
TEST_24_INCORRECT:
la $a0, test24fail
li $v0, 4
syscall
# test that the length of the string is correct
TEST_24_PART_2:
lw $t5, test24len
bne $t5, $t6, TEST_24_INCORRECT_2
# if the string length is correct, print that it is and allocate points
TEST_24_CORRECT_2:
la $a0, test24pass2
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_25
# if the string length is incorrect, print that it is not
TEST_24_INCORRECT_2:
la $a0, test24fail2
li $v0, 4
syscall
TEST_25:
# display string to test
la $a0, test25msg
li $v0, 4
syscall
# display inputs to test
la $a0, test25msgin
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the sprintf procedure
la $a0, test25space
la $a1, test25
li $a2, 0
li $a3, 0
jal PROC_SPRINTF
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the length answer to $t6
move $t6, $v0
# load the solution
la $t1, test25ans
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
la $a0, test25space
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# display the length provided by the function
la $a0, your_length
li $v0, 4
syscall
move $a0, $t6
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness of string contents
la $a0, test25space
la $a1, test25ans
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_25_INCORRECT
# if the string is correct, print that it is and allocate points
TEST_25_CORRECT:
la $a0, test25pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_25_PART_2
# if the string is incorrect, print that it is not
TEST_25_INCORRECT:
la $a0, test25fail
li $v0, 4
syscall
# test that the length of the string is correct
TEST_25_PART_2:
lw $t5, test25len
bne $t5, $t6, TEST_25_INCORRECT_2
# if the string length is correct, print that it is and allocate points
TEST_25_CORRECT_2:
la $a0, test25pass2
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_26
# if the string length is incorrect, print that it is not
TEST_25_INCORRECT_2:
la $a0, test25fail2
li $v0, 4
syscall
TEST_26:
# display string to test
la $a0, test26msg
li $v0, 4
syscall
# display inputs to test
la $a0, test26msgin
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the sprintf procedure
la $a0, test26space
la $a1, test26
li $a2, 0
li $a3, 0
jal PROC_SPRINTF
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the length answer to $t6
move $t6, $v0
# load the solution
la $t1, test26ans
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
la $a0, test26space
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# display the length provided by the function
la $a0, your_length
li $v0, 4
syscall
move $a0, $t6
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness of string contents
la $a0, test26space
la $a1, test26ans
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_26_INCORRECT
# if the string is correct, print that it is and allocate points
TEST_26_CORRECT:
la $a0, test26pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_26_PART_2
# if the string is incorrect, print that it is not
TEST_26_INCORRECT:
la $a0, test26fail
li $v0, 4
syscall
# test that the length of the string is correct
TEST_26_PART_2:
lw $t5, test26len
bne $t5, $t6, TEST_26_INCORRECT_2
# if the string length is correct, print that it is and allocate points
TEST_26_CORRECT_2:
la $a0, test26pass2
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_27
# if the string length is incorrect, print that it is not
TEST_26_INCORRECT_2:
la $a0, test26fail2
li $v0, 4
syscall
TEST_27:
# display string to test
la $a0, test27msg
li $v0, 4
syscall
# display inputs to test
la $a0, test27msgin
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the sprintf procedure
la $a0, test27space
la $a1, test27
lw $a2, test27in1
li $a3, 0
jal PROC_SPRINTF
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the length answer to $t6
move $t6, $v0
# load the solution
la $t1, test27ans
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
la $a0, test27space
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# display the length provided by the function
la $a0, your_length
li $v0, 4
syscall
move $a0, $t6
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness of string contents
la $a0, test27space
la $a1, test27ans
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_27_INCORRECT
# if the string is correct, print that it is and allocate points
TEST_27_CORRECT:
la $a0, test27pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_27_PART_2
# if the string is incorrect, print that it is not
TEST_27_INCORRECT:
la $a0, test27fail
li $v0, 4
syscall
# test that the length of the string is correct
TEST_27_PART_2:
lw $t5, test27len
bne $t5, $t6, TEST_27_INCORRECT_2
# if the string length is correct, print that it is and allocate points
TEST_27_CORRECT_2:
la $a0, test27pass2
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_28
# if the string length is incorrect, print that it is not
TEST_27_INCORRECT_2:
la $a0, test27fail2
li $v0, 4
syscall
TEST_28:
# display string to test
la $a0, test28msg
li $v0, 4
syscall
# display inputs to test
la $a0, test28msgin
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the sprintf procedure
la $a0, test28space
la $a1, test28
lw $a2, test28in1
lw $a3, test28in2
jal PROC_SPRINTF
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the length answer to $t6
move $t6, $v0
# load the solution
la $t1, test28ans
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
la $a0, test28space
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# display the length provided by the function
la $a0, your_length
li $v0, 4
syscall
move $a0, $t6
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness of string contents
la $a0, test28space
la $a1, test28ans
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_28_INCORRECT
# if the string is correct, print that it is and allocate points
TEST_28_CORRECT:
la $a0, test28pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_28_PART_2
# if the string is incorrect, print that it is not
TEST_28_INCORRECT:
la $a0, test28fail
li $v0, 4
syscall
# test that the length of the string is correct
TEST_28_PART_2:
lw $t5, test28len
bne $t5, $t6, TEST_28_INCORRECT_2
# if the string length is correct, print that it is and allocate points
TEST_28_CORRECT_2:
la $a0, test28pass2
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_29
# if the string length is incorrect, print that it is not
TEST_28_INCORRECT_2:
la $a0, test28fail2
li $v0, 4
syscall
TEST_29:
# display string to test
la $a0, test29msg
li $v0, 4
syscall
# display inputs to test
la $a0, test29msgin
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the sprintf procedure
la $a0, test29space
la $a1, test29
lw $a2, test29in1
li $a3, 0
jal PROC_SPRINTF
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the length answer to $t6
move $t6, $v0
# load the solution
la $t1, test29ans
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
la $a0, test29space
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# display the length provided by the function
la $a0, your_length
li $v0, 4
syscall
move $a0, $t6
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness of string contents
la $a0, test29space
la $a1, test29ans
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_29_INCORRECT
# if the string is correct, print that it is and allocate points
TEST_29_CORRECT:
la $a0, test29pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_29_PART_2
# if the string is incorrect, print that it is not
TEST_29_INCORRECT:
la $a0, test29fail
li $v0, 4
syscall
# test that the length of the string is correct
TEST_29_PART_2:
lw $t5, test29len
bne $t5, $t6, TEST_29_INCORRECT_2
# if the string length is correct, print that it is and allocate points
TEST_29_CORRECT_2:
la $a0, test29pass2
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_30
# if the string length is incorrect, print that it is not
TEST_29_INCORRECT_2:
la $a0, test29fail2
li $v0, 4
syscall
TEST_30:
# display string to test
la $a0, test30msg
li $v0, 4
syscall
# display inputs to test
la $a0, test30msgin
li $v0, 4
syscall
# back up $t9 to the stack
subi $sp, $sp, 4
sw $t9, 0($sp)
# pass that string to the sprintf procedure
la $a0, test30space
la $a1, test30
li $a2, 0
li $a3, 0
jal PROC_SPRINTF
# recover $t9 from the stack
lw $t9, 0($sp)
addi $sp, $sp, 4
# copy the length answer to $t6
move $t6, $v0
# load the solution
la $t1, test30ans
# display the answer provided by the function
la $a0, your_answer
li $v0, 4
syscall
la $a0, test30space
li $v0, 4
syscall
la $a0, newline
li $v0, 4
syscall
# display the length provided by the function
la $a0, your_length
li $v0, 4
syscall
move $a0, $t6
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
# check for correctness of string contents
la $a0, test30space
la $a1, test30ans
jal PROC_COMPARE_STRINGS
bne $v0, $zero, TEST_30_INCORRECT
# if the string is correct, print that it is and allocate points
TEST_30_CORRECT:
la $a0, test30pass
li $v0, 4
syscall
addi $t9, $t9, 10
j TEST_30_PART_2
# if the string is incorrect, print that it is not
TEST_30_INCORRECT:
la $a0, test30fail
li $v0, 4
syscall
# test that the length of the string is correct
TEST_30_PART_2:
lw $t5, test30len
bne $t5, $t6, TEST_30_INCORRECT_2
# if the string length is correct, print that it is and allocate points
TEST_30_CORRECT_2:
la $a0, test30pass2
li $v0, 4
syscall
addi $t9, $t9, 10
j TOTAL_POINTS_SPRINTF
# if the string length is incorrect, print that it is not
TEST_30_INCORRECT_2:
la $a0, test30fail2
li $v0, 4
syscall
TOTAL_POINTS_SPRINTF:
la $a0, printpoints
li $v0, 4
syscall
move $a0, $t9
li $v0, 1
syscall
la $a0, slash
li $v0, 4
syscall
li $a0, 200
li $v0, 1
syscall
la $a0, newline
li $v0, 4
syscall
syscall
syscall
# move point total into $v0 to return
move $v0, $t9
# epilogue
lw $ra, 0($sp)
addi $sp, $sp, 4
# Return
jr $ra
###############################################################
# This helper procedure is used in the testing code to
# compare two strings
#
# Post: $v0 contains 0 if the strings are equal, 0 otherwise
###############################################################
PROC_COMPARE_STRINGS:
# prologue
subi $sp, $sp, 4
sw $ra, 0($sp)
# function body
move $t0, $a0 # copy address of first string to $t0
move $t1, $a1 # copy address of second string to $t1
COMPARE_LOOP:
lb $t2, 0($t0) # get byte from first string
lb $t3, 0($t1) # get byte from second string
bne $t2, $t3, NOT_EQUAL_STRINGS # branch if the characters aren’t equal
beq $t2, $zero, EQUAL_STRINGS # branch if we got to the null terminator
# move to the next characters of each string and loop
addi $t0, $t0, 1
addi $t1, $t1, 1
j COMPARE_LOOP
NOT_EQUAL_STRINGS:
# if the strings aren’t equal, return 1
li $v0, 1
j END_OF_COMPARE_STRINGS
EQUAL_STRINGS:
# if the strings are equal, return 0
li $v0, 0
END_OF_COMPARE_STRINGS:
# epilogue
lw $ra, 0($sp)
addi $sp, $sp, 4
# Return
jr $ra