Pseudoinstructions: Arithmetic

Instruction

Real instructions

Semantics

Multiply

mul $rd, $rs, $rt

multu $rs, $rt

# R[d] = R[s] * R[t]

mflo $rd

Multiply with overflow

mulo $rd, $rs, $rt

mult $rs, $rt

# R[d] = R[s] * R[t]

mflo $rd

# check for overflow