Conditional: if

simple if statement

if ( i == j )

$s1

i

i++ ;

$s2

j

j-- ;

in C: if condition is true, we "fall through" to execute the statement

if false, jump to next

in assembly, we jump if condition is true

need to negate the condition

assuming $s1 stores i and $s2 stores j:

bne  $s1, $s2, L1    # branch if !( i == j )

addi $s1, $s1, 1     # i++

L1: addi $s2, $s2, -1    # j--