48. Immediate-type instructions

• 
      # immediate arithmetic and logic
      addi $t1, $t2, 345
      ori  $t1, $t2, 345
      slti $t1, $t2, 345
  
      # branch and branch-zero
      beq  $t2, $t3, label
      bne  $t2, $t3, label
      bgtz $t2, label
  
      # load/store
      lw $t1, 345($t2)
      sw $t2, 345($t1)
      lb $t1, 345($t2)
      sb $t2, 345($t1)