#This is a MIPS program to calculate the result

#of the series: $1+2+3+...+$n$,$ where n is the user input

$.$text

main:

# Print input prompt

li $v$0,4$ # syscall code $4$ for printing a string

la $a$0,$ in$\_$prompt # assign the prompt string to a$0$ for printing

syscall

# Read the value of n from user and save to t$0$

li $v$0,5$ # syscall code $5$ for reading an integer from user to v$0$

syscall

move $t$0,$$v$0$ # assign the value of n to t$0$

# Initialize counter and total registers

li $t$1,0$ # initialize counter register, t$0$

li $t$2,0$ # initialize total register, t$1$

# Main loop body

loop: addi $t$1,$ $t$1,1$ # increase the value of the counter

add $t$2,$ $t$2,$ $t$1$ # update the total

beq $t$0,$ $t$1,$ exit # if the counter value is n$,$ exit the loop

j loop

# exit block for printing the output

exit: li $v$0,4$ # syscall code $4$ for printing the output string

la $a$0,$ out$\_$string

syscall

# Print total

li $v$0,1$ # syscall code $4$ for printing the integer total

move $a$0,$ $t$2$ # Assign the total to a$0$ for printing

syscall

li $v$0,10$ # syscall code $10$ for terminate the execution of the program

syscall

$.$data

in$\_$prompt: $.$asciiz "Enter the value of n: $"$

out$\_$string: $.$asciiz "Total $="$