I dynamically allocate 48 bits using syscall 9 and then iterate through it setting t0-t3 and s0-s1 to different addresses (like arrays of 2 elements).
And it looks like this in register window:
$t0 0x10040000
$t1 0x10040008
$t2 0x10040010
$t3 0x10040018
$s0 0x10040020
$s1 0x10040028
Then I proceed to get user input to put them into the arrays.
When I store first input with sw $v0, ($t0) it goes into Value(+4) in debugger window not into Value(+0).
Later on, when I process arrays it messes with addresses and rewrites them instead of writing to the correct ones.