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Describe the fetch and execution cycles by executing the following instructions.
An instruction cycle normally includes instruction fetch, decode, operand fetch from memory, execution, update program counter with the next instruction in sequence or the branch target address. Which of these steps may not be present in some of the instructions?
For pipelined execution, there are multiple instructions on the pipeline for concurrent execution. How the control unit is designed inside the processor? Choose one most appropriate answer below. Use multiple control units each controlling the execution of one instruction. Control signals are generated at ID stage, and propagates via pipeline buffers to next stage(s) along with instruction execution. Control signals are pre-stored in the pipeline buffers. When an instruction reaches to a certain stage, it will use the signals stored...
Exercise 4.4.1: Tracing a monitor execution. About While a process is executing inside the function A of the monitor m, the following calls are issued by different processes: m.A0; m.B0; m.B0; m.B0; m.B(; m.A); m.A(); monitor m { int x = 10, у %3D 2 condition c A ( ) { (1) (2) (3) X++ c.signal у 3 х — 2 } B( ) { if (x > 10) (4) (5) (6) (7) х-- else {c.wait x--} } (a) Using...
Give a set with 13 elements, show the final result of executing the following instructions with UF WeightedQuickUnion: union(7, 8), union(9, 10), union(11, 12), union(9, 11), union(0, 1), union(0, 2), union(6, 4), union(0, 6). Assuming initially there are 13 components. a) Show the final contents of idl array b) Draw the final forest of trees. union(3,5), union(4, 3).
the necessary steps in RTL (Register Transfer Languag fetch and execute to the instructions addi (add immediate), bne (branch not equal), and j Üump) on a multicycle MIPS machine. (10 points) Stepl: (IF) Instruction Fetch Step2: (ID) Instruction Decode and Rek. Fetch Step 3 (EX) Exerution Stepi: (MEM) Memory Access itepl: (WB) Whte Back 1. Write the necessary steps in RTL (Register Transfer Language), to fetch and execute (10 points) the instructions addi (add immediate), bne (branch not equal), and...
(a) Fill in the following pipeline timing chart showing the execution of the first 5 instructions as- suming that NO forwarding is available I1: LUI R1, 0x1234 I2: ORI R1, R1, 0x0010 I3: LW I4: LW I5: SUB R4, R3, R2 I6: BGEZ R4, +4 17: SUB R4, R2, R3 I8: SW ; load upper 2 bytes of R1 R2, 0 (R1) R3, 4 (R1) ; load A ; load B compute B-A compute A-B R4, 8 (R1) ;store the...
400 MHz CPU with 5 stage execution, 1 clock Instruction fetch 1 clock Decode 0 clock data fetch 8 clock execution 0 clock write back. A. How many clocks to complete 1 instruction? B. How many instructions are completed in a second if not pipelined? C. How many instructions are completed in a second if pipelined? D. How many instructions are completed in a second if pipelined and execution stage superscalar?
Using graphical representation, show the pipeline execution of the following instructions on the 5-stage pipeline with hazard detection and forwarding as implemented in Lecture 6. Clearly indicate the forwarding path(s) and stall(s). Note: highlight the forwarding path and use bubbles (or O) for stalls. Lw R20, 0x0100(R18) Add R14, R20, R16 Sw R18, 0x0110(R16) Or R12, R14, R20 Lw R18, 0x0100(R12) instr CC1 CC2 CC3 lw
Compller A Compler B Execution Ti Execution Time No. Instructions meNo. Instructions b. 1.9 s 1.60E+09 1.30E+09 2.1 s 1.71 [5] <1.4> For the same program, two different compilers are used. The table above shows the execution time of the two different compiled programs. Find the average CPI for each program given that the processor has a clock cycle time of 1 ns. 1.7.2 [5] <1.4> Assume the compiled programs run on two different processors If the execution times on...
Problem 1 (5 points) Using graphical representation, show the pipeline execution of the following instructions on the 5-stage pipeline as given in the Lecture 7. Lxx R20, 0x0100(R18) Add R20, R18, R16 Sw, R22, 0x0110(R16) cc1 CC2 Instr lwy Also answer the following questions: (1) How many cycles needed for the execution of these three instructions? (2) What is ALU doing on cycle 3, 4, 5 respectively? (3) What is the memory action in cycle 4, 5, 6 respectively?