loop:
slt $t0,$s1,$s0
beq $t0,$0,exit
addi $t1,$t0,2
addi $t2,$s0,-1
sll $t3,$t1,2
add $t4,$t3,$s2
lw $s0,0($t4)
sll $t4,$t2,2
add $t5,$t4,$s3
sw $s0,0($t5)
addi $so,so,1
j loop
exit: