What is MIPS?       Operation Codes

Some Examples   Applet to Run your MIPS Code     

• All MIPS instructions are encoded in binary.
• All MIPS instructions are 32 bits long.
• (Note: some assembly langs do not have uniform length for all instructions)
  All instructions have:
• op: code for operation (6 bits)
  Most instructions also have: (R-format)
• rs: 1st operand (register source) (5 bits)
  rt: 2nd operand (5 bits)
  rd: register destination (5 bits)
  shamt: shift amount (0 when N/A) (5 bits)
  funct: function (variant of operation in op: op+funct specifies operation) (6 bits)

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