MIPS Instruction set format

R-Type Instructions (Opcode 000000)

opcode (6)

rs (5)

rt (5)

rd (5)

sa (5)

function (6)

I-Type Instructions (All opcodes except 000000, 00001x, and 0100xx)

opcode (6)

rs (5)

rt (5)

immediate (16)

J-Type Instructions (Opcode 00001x)

opcode (6)

target (26)

Coprocessor Instructions (Opcode 0100xx)

opcode (6)

format (5)

ft (5)

fs (5)

fd (5)

function (6)

Reference:

• Page URL: http://www.d.umn.edu/~gshute/spimsal/talref.html
• http://www.mrc.uidaho.edu/mrc/people/jff/digital/MIPSir.html
• http://www.mrc.uidaho.edu/mrc/people/jff/digital/MIPS_slides/