Instruction Pipline

Question

Will there be any stall in the code for instruction I1 and I2 as there exits WAW

I-1   AddI R3,R1,R2;

I-2   SW R3,0(R4);

I-3    Sub R4,R4,#4;

Actually I want to ask is does WAW cause stall if there is dependency between a load&store instruction to a arithmetic instructions.

Comments

don't you thing Writing and Storing are same ??

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But we are reading the value of R3 and writing it to the memory..Writing is not being done on R3..

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Yes there will RAW dependency