Opcodes for I-Format and J-Format Instructions
Name Opcode j 2 jal 3 beq 4 bne 5 addi 8 addiu 9 slti 10 sltiu 11 andi 12 ori 13 lui 15 lw 35 sw 43 Funct Codes for R-Format Instructions
Name Funct Code sll 0 srl 2 jr 8 add 32 addu 33 sub 34 subu 35 and 36 or 37 nor 39 slt 42 sltu 43