Translate the following C++ program to MIPS assembly program. Please explain each instruction of your code by a comment and submit a .asm file#include using namespace std; void myfunction(int arr[], int n) { int writes = 0; for(int start = 0; start <= n-2; start++){ int item = arr[start]; int pos = start; for(int i = start+1; i< n; i++) if (arr[i]

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15-04-2020
Computers and Technology

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Translate the following C++ program to MIPS assembly program. Please explain each instruction of your code by a comment and submit a .asm file#include using namespace std; void myfunction(int arr[], int n) { int writes = 0; for(int start = 0; start <= n-2; start++){ int item = arr[start]; int pos = start; for(int i = start+1; i< n; i++) if (arr[i]

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temmydbrain temmydbrain · Answer 1 · 2020-04-19T03:57:50+02:00

Answer:

Check the explanation

Explanation:

ASM of MIPS gcc 5.4:

myfunction(int*, int):

addiu $sp,$sp,-56

sw $31,52($sp)

sw $fp,48($sp)

move $fp,$sp

sw $4,56($fp)

sw $5,60($fp)

sw $0,24($fp)

sw $0,28($fp)

$L16:

lw $2,60($fp)

nop

addiu $3,$2,-2

lw $2,28($fp)

nop

slt $2,$3,$2

bne $2,$0,$L17

nop

lw $2,28($fp)

nop

sll $2,$2,2

lw $3,56($fp)

nop

addu $2,$3,$2

lw $2,0($2)

nop

sw $2,44($fp)

lw $2,28($fp)

nop

sw $2,32($fp)

lw $2,28($fp)

nop

addiu $2,$2,1

sw $2,36($fp)

$L5:

lw $3,36($fp)

lw $2,60($fp)

nop

slt $2,$3,$2

beq $2,$0,$L3

nop

lw $2,36($fp)

nop

sll $2,$2,2

lw $3,56($fp)

nop

addu $2,$3,$2

lw $3,0($2)

lw $2,44($fp)

nop

slt $2,$3,$2

beq $2,$0,$L4

nop

lw $2,32($fp)

nop

addiu $2,$2,1

sw $2,32($fp)

$L4:

lw $2,36($fp)

nop

addiu $2,$2,1

sw $2,36($fp)

b $L5

nop

$L3:

lw $3,32($fp)

lw $2,28($fp)

nop

beq $3,$2,$L18

nop

$L6:

lw $2,32($fp)

nop

sll $2,$2,2

lw $3,56($fp)

nop

addu $2,$3,$2

lw $3,0($2)

lw $2,44($fp)

nop

bne $3,$2,$L8

nop

lw $2,32($fp)

nop

addiu $2,$2,1

sw $2,32($fp)

b $L6

nop

$L8:

lw $3,32($fp)

lw $2,28($fp)

nop

beq $3,$2,$L9

nop

lw $2,32($fp)

nop

sll $2,$2,2

lw $3,56($fp)

nop

addu $3,$3,$2

addiu $2,$fp,44

move $5,$3

move $4,$2

jal void std::swap<int>(int&, int&)

nop

lw $2,24($fp)

nop

addiu $2,$2,1

sw $2,24($fp)

$L9:

lw $3,32($fp)

lw $2,28($fp)

nop

beq $3,$2,$L7

nop

lw $2,28($fp)

nop

sw $2,32($fp)

lw $2,28($fp)

nop

addiu $2,$2,1

sw $2,40($fp)

$L13:

lw $3,40($fp)

lw $2,60($fp)

nop

slt $2,$3,$2

beq $2,$0,$L11

nop

lw $2,40($fp)

nop

sll $2,$2,2

lw $3,56($fp)

nop

addu $2,$3,$2

lw $3,0($2)

lw $2,44($fp)

nop

slt $2,$3,$2

beq $2,$0,$L12

nop

lw $2,32($fp)

nop

addiu $2,$2,1

sw $2,32($fp)

$L12:

lw $2,40($fp)

nop

addiu $2,$2,1

sw $2,40($fp)

b $L13

nop

$L11:

lw $2,32($fp)

nop

sll $2,$2,2

lw $3,56($fp)

nop

addu $2,$3,$2

lw $3,0($2)

lw $2,44($fp)

nop

bne $3,$2,$L14

nop

lw $2,32($fp)

nop

addiu $2,$2,1

sw $2,32($fp)

b $L11

nop

$L14:

lw $2,32($fp)

nop

sll $2,$2,2

lw $3,56($fp)

nop

addu $2,$3,$2

lw $3,0($2)

lw $2,44($fp)

nop

beq $3,$2,$L9

nop

lw $2,32($fp)

nop

sll $2,$2,2

lw $3,56($fp)

nop

addu $3,$3,$2

addiu $2,$fp,44

move $5,$3

move $4,$2

jal void std::swap<int>(int&, int&)

nop

lw $2,24($fp)

nop

addiu $2,$2,1

sw $2,24($fp)

b $L9

nop

$L18:

nop

$L7:

lw $2,28($fp)

nop

addiu $2,$2,1

sw $2,28($fp)

b $L16

nop

$L17:

nop

move $sp,$fp

lw $31,52($sp)

lw $fp,48($sp)

addiu $sp,$sp,56

j $31

nop

$LC0:

.ascii "array:\000"

$LC1:

.ascii " \000"

main:

addiu $sp,$sp,-72

sw $31,68($sp)

sw $fp,64($sp)

move $fp,$sp

li $2,1 # 0x1

sw $2,32($fp)

li $2,8 # 0x8

sw $2,36($fp)

li $2,3 # 0x3

sw $2,40($fp)

li $2,9 # 0x9

sw $2,44($fp)

li $2,10 # 0xa

sw $2,48($fp)

li $2,2 # 0x2

sw $2,52($fp)

li $2,4 # 0x4

sw $2,56($fp)

li $2,7 # 0x7

sw $2,28($fp)

addiu $2,$fp,32

lw $5,28($fp)

move $4,$2

jal myfunction(int*, int)

nop

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

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

sw $0,24($fp)

$L21:

lw $3,24($fp)

lw $2,28($fp)

nop

slt $2,$3,$2

beq $2,$0,$L20

nop

lw $2,24($fp)

nop

sll $2,$2,2

addiu $3,$fp,24

addu $2,$3,$2

lw $2,8($2)

nop

move $5,$2

lui $2,%hi(_ZSt4cout)

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

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

nop

move $3,$2

lui $2,%hi($LC1)

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

move $4,$3

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 $2,24($fp)

nop

addiu $2,$2,1

sw $2,24($fp)

b $L21

nop

$L20:

move $2,$0

move $sp,$fp

lw $31,68($sp)

lw $fp,64($sp)

addiu $sp,$sp,72

j $31

nop

void std::swap<int>(int&, int&):

addiu $sp,$sp,-24

sw $fp,20($sp)

move $fp,$sp

sw $4,24($fp)

sw $5,28($fp)

lw $2,24($fp)

nop

lw $2,0($2)

nop

sw $2,8($fp)

lw $2,28($fp)

nop

lw $3,0($2)

lw $2,24($fp)

nop

sw $3,0($2)

lw $2,28($fp)

lw $3,8($fp)

nop

sw $3,0($2)

nop

move $sp,$fp

lw $fp,20($sp)

addiu $sp,$sp,24

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,$2,$L26

nop

lw $3,36($fp)

li $2,65535 # 0xffff

bne $3,$2,$L26

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

$L26:

nop

move $sp,$fp

lw $31,28($sp)

lw $fp,24($sp)

addiu $sp,$sp,32

j $31

nop