'Branch delay' presentation slideshows

Review of Computer Architecture

Review of Computer Architecture. -- Instruction sets, pipelines and caches. Review, #1. Designing to Last through Trends Capacity Speed Logic 2x in 3 years 2x in 3 years DRAM 4x in 3 years 2x in 10 years Disk 4x in 3 years 2x in 10 years

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CENG 450 Computer Systems and Architecture Lecture 7

CENG 450 Computer Systems and Architecture Lecture 7. Amirali Baniasadi amirali@ece.uvic.ca. This Lecture. Pipelining ILP Scheduling. Limits to pipelining. Hazards: circumstances that would cause incorrect execution if next instruction were launched

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Chapter 4B: The Processor, Part B-3

Chapter 4B: The Processor, Part B-3. Read Sections 4.8, 4.9. Adapted from Slides by Prof. Mary Jane Irwin, Penn State University And Slides Supplied by the textbook publisher. Control Hazards.

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ECE 361 Computer Architecture Lecture 13: Designing a Pipeline Processor

ECE 361 Computer Architecture Lecture 13: Designing a Pipeline Processor. 1. Mux. 0. Review: A Pipelined Datapath. Clk. Ifetch. Reg/Dec. Exec. Mem. Wr. ExtOp. ALUOp. Branch. RegWr. 1. 0. PC+4. PC+4. PC. PC+4. Imm16. Imm16. Zero. Data Mem. Rs. busA. A. Ra. busB. Exec

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??? Instruction-Level Parallelism and Its Dynamic Exploitation

??? Instruction-Level Parallelism and Its Dynamic Exploitation. ??? chenwz@zju.edu.cn ????????? 2011 ? 09 ?. 3.3.5 Pipelining Control Hazards. Taxonomy of Hazards Structural hazards These are conflicts over hardware resources. Data hazards

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Pipelining Control Hazards and Deeper pipelines

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EE (CE) 6304 Computer Architecture Lecture #5 (9/6/17)

EE (CE) 6304 Computer Architecture Lecture #5 (9/6/17). Yiorgos Makris Professor Department of Electrical Engineering University of Texas at Dallas. Course Web-site: http://www.utdallas.edu/~gxm112130/EE6304FA16. Reg. Reg. Reg. Reg. Reg. Reg. Reg. Reg. Reg. Reg. ALU. ALU. ALU.

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EE (CE) 6304 Computer Architecture Lecture #5 (9/6/17)

EE (CE) 6304 Computer Architecture Lecture #5 (9/6/17). Yiorgos Makris Professor Department of Electrical Engineering University of Texas at Dallas. Course Web-site: http://www.utdallas.edu/~gxm112130/EE6304FA16. Reg. Reg. Reg. Reg. Reg. Reg. Reg. Reg. Reg. Reg. ALU. ALU. ALU.

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EENG 449bG/CPSC 439bG Computer Systems Lecture 3 MIPS Instruction Set & Intro to Pipelining

EENG 449bG/CPSC 439bG Computer Systems Lecture 3 MIPS Instruction Set & Intro to Pipelining. January 20, 2004 Prof. Andreas Savvides Spring 2004 http://www.eng.yale.edu/courses/eeng449bG. The MIPS Architecture. Features: GPRs with load-store

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Lecture 15: Pipelining: Branching & Complications

Lecture 15: Pipelining: Branching & Complications. Michael B. Greenwald Computer Architecture CIS 501 Fall 1999. Administration. Solutions to midterm up on web page. HW #4 posted on web page. Visualizing Pipelining Figure 3.3, Page 133. Time (clock cycles). Register Bank. Data Memory.

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2004-10-07 John Lazzaro (cs.berkeley/~lazzaro)

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Branch Hazards in the Pipelined Processor

Branch Hazards in the Pipelined Processor. Dependences. Data dependence : one instruction is dependent on another instruction to provide its operands. Control dependence (aka branch dependences ): one instructions determines whether another gets executed or not.

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What We Have Learn About Pipeline So Far

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CSC 4250 Computer Architectures

CSC 4250 Computer Architectures. September 19, 2006 Appendix A. Pipelining. Three Classes of Pipeline Hazards. Structural Hazards: Arise from resource conflicts when hardware cannot support the overlapped execution of all possible combinations of instructions

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CSC 4250 Computer Architectures

CSC 4250 Computer Architectures. September 26, 2006 Appendix A. Pipelining. Checks before Instruction Issue. Check for structural hazards ? FP divide, register write port

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Forwarding to Avoid Data Hazard Figure 3.10, Page 149 , CA:AQA 2e

Reg. Reg. Reg. Reg. Reg. Reg. Reg. Reg. Reg. Reg. ALU. ALU. ALU. ALU. ALU. Ifetch. Ifetch. Ifetch. Ifetch. Ifetch. DMem. DMem. DMem. DMem. DMem. I n s t r. O r d e r. add r1 ,r2,r3. sub r4, r1 ,r3. and r6, r1 ,r7. or r8, r1 ,r9. xor r10, r1 ,r11.

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Branch Prediction

Branch Prediction. Define branch prediction. Draw a state machine for a 2 bit branch prediction scheme Explain the impact on the compiler of branch delay. . Control Hazards. Consider: add $t1, $zero, $zero # t1=0 beq $t1, $zero, Ifequal Notequal : addi $v0, $zero, 4 Ifequal :

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Lecture 11: Pipeline Hazards II

Lecture 11: Pipeline Hazards II. Last Time: Data Hazards (intro) Today Reducing impact of data hazards Control Hazards How to speed up pipelines. Data Hazards With Bypassing. Cycle. ADD R1, R2, R3 ADD R4, R1, R5 SUB R5, R1, R6 XOR R7, R8, R1. F. R. X. M. W. R1 computed. R1 used.

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Lecture 12: Pipelining

Lecture 12: Pipelining. Computer Engineering 585 Fall 2001. 11%. compress. 3%. 3%. 22%. eqntott. 2%. 2%. 11%. espresso. 4%. 1%. 12%. gcc. 3%. 4%. 11%. li. 4%. 8%. Benchmark. 6%. doduc. 2%. 2%. 6%. ear. 4%. 4%. 10%. hydro2d. 2%. 0%. 9%. mdljdp. 0%. 0%. 2%.

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