Assume that $s0 is initialized to 11 and $s1 is initialized to 22. Suppose you executed the code below on a version of the pipeline from Section 4.6 that does not handle data hazards (i.e., the programmer is responsible for addressing data hazards by inserting NOP instructions where necessary). What would the final values of register $s4 be? Assume the register file is written at the beginning of the cycle and read at the end of a cycle. Therefore, an ID stage will return the results of a WB state occurring during the same cycle. See Section 4.8 and Figure 4.51 for details. 

addi $s0, $s1, 5 

add $s2, $s0, $s1 

addi $s3, $s0, 15 

add $s4, $s0, $s0

Data from figure 4.51

Transcribed Image Text:

Sox. POS Add Instruction memory 2 Instruction Read Read register 2 We Wie data Instruction (15-0 Instruction 120-16 musta Instruction [15-11) Read data Registers Read Sign extend IDEX ww Shift 2 (XES) Aagaa result ALU ALUS ALU ALU result ALUO EXMEM We M Branch Me Address Write dala Data memory Read data Murat MEMWB WE Segosys (-53x0)