Question

IN MIPS MACHINE LANGUAGE FOR MARS SIMULATOR

Write your own short program that presents a RAW data dependence condition (2-5 instructions in MIPS that exhibits a data hazard). Document the hazard condition in your code comments.

Answer 1

MIPS code:

sub $2, $1, $3

and $12, $2, $5

or $13, $6, $2

add $14, $2, $2

sw $15, 100($2)

Identifying Data Hazards in the Pipeline The dependencies and resulting hazards are easier Assume: $t1-10, $t2-10, $t3--20to see in the muli-cyde Time Value of St2: 10 and $12, $2, $5 Program Order or $13, 6, $2 add $14, $2. $2 Data Hazard Dependency on result of first instruction and need that result before it's ready Why isn't this a data hazard in the MIPS pipeline?