Question

Write a program that echos back any inputted integer greater than 1, and exits when a 0 is entered. Your program should use a conditional branch when deciding whether to echo back the integer or exit the program. It should use a jump when looping back up to run the input+echo again.

Answer 1

Answer:

MIPS Code:

.data

newline: .asciiz "\n" #newline variable

.text

MAINLOOP:

li $v0, 5 #syscall to get user interger and store in $v0

syscall

add $a0, $zero, $v0 #moving the user input to $a0 from $v0

beq $a0, 0, EXIT #branching to EXIT when $a0 is 0

li $v0, 1 #syscall to print integer in $a0

syscall

li $v0, 4 #syscall to print newline

la $a0, newline

syscall

j MAINLOOP #jumping to MAINLOOP

EXIT:

Sample Output:

6

6

7

7

3

3

0