Question

Programming:

Write a SPIM assembly language program num-vowel.s based on the hardware implementation method in the lab notes and the above practice.
The program will do the following:

1. Prompt the user to enter a string.
2. The program will call the procedure vowelp to check if a character entered in the string is a vowel or not.
3. Count how many vowels and how many non-vowels are in the string.
4. Print out the calculated results with appropriate message.
5. Hint: A loop is needed.

You will run this program in the hardware and
show your testing result with input "Hello There!"

Answer 1

CODE:

$LC0:

.ascii "Vowels: \000"

$LC1:

.ascii "Non Vowels: \000"

fun(char*):

addiu $sp,$sp,-48

sw $31,44($sp)

sw $fp,40($sp)

move $fp,$sp

sw $4,48($fp)

sw $0,28($fp)

lw $2,28($fp)

nop

sw $2,24($fp)

sw $0,32($fp)

$L8:

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $2,0($2)

nop

beq $2,$0,$L2

nop

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $3,0($2)

li $2,97 # 0x61

beq $3,$2,$L3

nop

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $3,0($2)

li $2,101 # 0x65

beq $3,$2,$L3

nop

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $3,0($2)

li $2,105 # 0x69

beq $3,$2,$L3

nop

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $3,0($2)

li $2,111 # 0x6f

beq $3,$2,$L3

nop

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $3,0($2)

li $2,117 # 0x75

beq $3,$2,$L3

nop

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $3,0($2)

li $2,65 # 0x41

beq $3,$2,$L3

nop

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $3,0($2)

li $2,69 # 0x45

beq $3,$2,$L3

nop

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $3,0($2)

li $2,73 # 0x49

beq $3,$2,$L3

nop

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $3,0($2)

li $2,79 # 0x4f

beq $3,$2,$L3

nop

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $3,0($2)

li $2,85 # 0x55

bne $3,$2,$L4

nop

$L3:

lw $2,24($fp)

nop

addiu $2,$2,1

sw $2,24($fp)

b $L5

nop

$L4:

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $2,0($2)

nop

slt $2,$2,97

bne $2,$0,$L6

nop

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $2,0($2)

nop

slt $2,$2,123

bne $2,$0,$L7

nop

$L6:

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $2,0($2)

nop

slt $2,$2,65

bne $2,$0,$L5

nop

lw $2,32($fp)

lw $3,48($fp)

nop

addu $2,$3,$2

lb $2,0($2)

nop

slt $2,$2,91

beq $2,$0,$L5

nop

$L7:

lw $2,28($fp)

nop

addiu $2,$2,1

sw $2,28($fp)

$L5:

lw $2,32($fp)

nop

addiu $2,$2,1

sw $2,32($fp)

b $L8

nop

$L2:

lui $2,%hi($LC0)

addiu $5,$2,%lo($LC0)

lui $2,%hi(_ZSt4cout)

addiu $4,$2,%lo(_ZSt4cout)

jal std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)

nop

lw $5,24($fp)

move $4,$2

jal std::basic_ostream<char, std::char_traits<char> >::operator<<(int)

nop

move $3,$2

lui $2,%hi(_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)

addiu $5,$2,%lo(_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)

move $4,$3

jal std::basic_ostream<char, std::char_traits<char> >::operator<<(std::basic_ostream<char, std::char_traits<char> >& (*)(std::basic_ostream<char, std::char_traits<char> >&))

nop

lui $2,%hi($LC1)

addiu $5,$2,%lo($LC1)

lui $2,%hi(_ZSt4cout)

addiu $4,$2,%lo(_ZSt4cout)

jal std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)

nop

lw $5,28($fp)

move $4,$2

jal std::basic_ostream<char, std::char_traits<char> >::operator<<(int)

nop

move $3,$2

lui $2,%hi(_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)

addiu $5,$2,%lo(_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)

move $4,$3

jal std::basic_ostream<char, std::char_traits<char> >::operator<<(std::basic_ostream<char, std::char_traits<char> >& (*)(std::basic_ostream<char, std::char_traits<char> >&))

nop

nop

move $sp,$fp

lw $31,44($sp)

lw $fp,40($sp)

addiu $sp,$sp,48

j $31

nop

$LC2:

.ascii "Enter a line of string: \000"

main:

addiu $sp,$sp,-184

sw $31,180($sp)

sw $fp,176($sp)

move $fp,$sp

lui $2,%hi($LC2)

addiu $5,$2,%lo($LC2)

lui $2,%hi(_ZSt4cout)

addiu $4,$2,%lo(_ZSt4cout)

jal std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)

nop

li $6,150 # 0x96

addiu $2,$fp,24

move $5,$2

lui $2,%hi(_ZSt3cin)

addiu $4,$2,%lo(_ZSt3cin)

jal std::basic_istream<char, std::char_traits<char> >::getline(char*, int)

nop

addiu $2,$fp,24

move $4,$2

jal fun(char*)

nop

move $2,$0

move $sp,$fp

lw $31,180($sp)

lw $fp,176($sp)

addiu $sp,$sp,184

j $31

nop

__static_initialization_and_destruction_0(int, int):

addiu $sp,$sp,-32

sw $31,28($sp)

sw $fp,24($sp)

move $fp,$sp

sw $4,32($fp)

sw $5,36($fp)

lw $3,32($fp)

li $2,1 # 0x1

bne $3,$2,$L13

nop

lw $3,36($fp)

li $2,65535 # 0xffff

bne $3,$2,$L13

nop

lui $2,%hi(_ZStL8__ioinit)

addiu $4,$2,%lo(_ZStL8__ioinit)

jal std::ios_base::Init::Init() [complete object constructor]

nop

lui $2,%hi(__dso_handle)

addiu $6,$2,%lo(__dso_handle)

lui $2,%hi(_ZStL8__ioinit)

addiu $5,$2,%lo(_ZStL8__ioinit)

lui $2,%hi(_ZNSt8ios_base4InitD1Ev)

addiu $4,$2,%lo(_ZNSt8ios_base4InitD1Ev)

jal __cxa_atexit

nop

$L13:

nop

move $sp,$fp

lw $31,28($sp)

lw $fp,24($sp)

addiu $sp,$sp,32

j $31

nop

_GLOBAL__sub_I_fun(char*):

addiu $sp,$sp,-32

sw $31,28($sp)

sw $fp,24($sp)

move $fp,$sp

li $5,65535 # 0xffff

li $4,1 # 0x1

jal __static_initialization_and_destruction_0(int, int)

nop

move $sp,$fp

lw $31,28($sp)

lw $fp,24($sp)

addiu $sp,$sp,32

j $31

nop

SCREENSHOT:

Enter a line of string: Hello there! Vowels: 4 Non Vowels: 6