• symbolic name (label) (effectively, a constant)
• indirectly via a register (effectively, pointer dereferencing)

prog:
a:    lw    $t0, var     # direct addressing via name
b:    lw    $t0, ($s0)   # indirect addressing
c:    lw    $t0, 4($s0)  # indexed addressing
d:    lw    $t0, vec($s1)  # indexed addressing
e:    lw    $t0, vec+4  # direct addressing via name + bytes 

If $s0 contains 0x10000000,$s1 contains 0x00000008 , &var = 0x100000008 and &vec = 0x10000000C

• computed address for a: is 0x100000008
• computed address for b: is 0x100000000
• computed address for c: is 0x100000004
• computed address for d: is 0x100000014
• computed address for e: is 0x100000010