Question

please translate these c++ coding to the simplest QtSPIM MIPS assembly language statement

#include<iostream>

using namespace std;

int main()

{

int change;

int totalCredit;

cout<<"Please scan your card";

cin>>totalCredit;

if(totalCredit>=3)

{

change=totalCredit-3;

cout<<"45 min";

}

else

{

cout<<"00";

}

return 0;

}

Answer 1

Please find the code below:

.globl main
.data
prompt1: .asciiz "Please scan your card : "
promptZero: .asciiz "00"
promptTime: .asciiz "45 min"

.text
main:
li $t0,0 #using as change

li $v0, 4
la $a0, prompt1
syscall
li $v0,5
syscall
move $t1, $v0 #t1 as totalCredit
blt $t1,3,else #if total credit less than 3
sub $t0,$t1,3 #change = totalCredit - 3
li $v0, 4
la $a0, promptTime
syscall
j exit
else:
li $v0, 4
la $a0, promptZero
syscall
exit:

output: