版本 05e983ab6ce978ad895fe7f29ad929062a23c702
Changes from 05e983ab6ce978ad895fe7f29ad929062a23c702 to 4529e0bca02ed7c4581c2dd0e61fa31b9e9c32e1
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title: Computer Architecture
toc: no
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- Instructor: [Jim Huang](/User/jserv) (黃敬群) `<jserv.tw@gmail.com>`
- Facebook Group: [https://www.facebook.com/groups/system.software2019/](https://www.facebook.com/groups/system.software2019/)
- Policy
* Follow the classes: [CS 61C at UC Berkeley](https://cs61c.org/), [CS152/252: Computer Architecture](https://inst.eecs.berkeley.edu/~cs152/sp19/)
- Course grading
* Quiz (20%), Homework (40%), Final Project (40%)
Computer Architecture (Fall 2021)
------------------------------------------------------
* Week 1 (Sep 28): Introduction
- **[Course Introduction](https://docs.google.com/presentation/d/1Ar6638recYqDDY_XuH6BRB-X9GHpw8G-KYnERXF6Jw8/edit?usp=sharing)**
- David Patterson: [A New Golden Age for Computer Architecture: History, Challenges and Opportunities](https://content.riscv.org/wp-content/uploads/2018/12/A-New-Golden-Age-for-Computer-Architecture-History-Challenges-and-Opportunities-David-Patterson-.pdf) / [video](https://youtu.be/uyc_pDBJotI)
* [Article](https://cacm.acm.org/magazines/2019/2/234352-a-new-golden-age-for-computer-architecture/fulltext), [note](https://github.com/cristiean/notes/blob/4c4ceb291ba68c55659ab0d4571385c8cccacd21/a-new-golden-age-for-computer-architecture.md)
- David Patterson: [From Mainframe CPUs to Neural-Network TPUs and Open RISC-V](https://riscv.org/wp-content/uploads/2017/05/Mon0915-RISC-V-50-Years-Computer-Arch.pdf) / [video](https://youtu.be/eH9_ygsio3I)
- [Great Ideas in Computer Architecture, Intro](https://drive.google.com/open?id=1Y4yUaw9vryZcdc4Xu0RQxHfqjVbeHJLF) / [video](https://youtu.be/u_hXH5-tbM4?t=263)
- [Number Representation](https://drive.google.com/drive/folders/1_Zbt8KdwieLsqRdfc6aNBOa2_hEmFkxR)
- [Floating Point](https://drive.google.com/drive/folders/147xm_DhklkevG6602mH4yoGuVMw-3GQZ?usp=sharing)
- [C Memory Management](https://drive.google.com/drive/folders/1pHpHRvjEg5TdidIp_fkOrh6TvMlYl5Yj?usp=sharing) / [video](https://youtu.be/fhEE4J4QCps)
* Week 2 (Oct 5): Quiz + RISC-V
- [Quiz1](https://hackmd.io/@sysprog/arch2021-quiz1): C programming, bit-wise operations, number representation, floating-point / [Solution](https://hackmd.io/@sysprog/arch2021-quiz1-sol)
- [Lab0: Web-based Emulators](https://hackmd.io/@sysprog/SJ7ht_MuS)
- [Introduction to RISC-V Assembly language : Arithmetic](https://docs.google.com/presentation/d/1TCuhElbEfMCLvkEJGgELNBR3uQYzzNhe/edit?usp=sharing&ouid=113685665535544054506&rtpof=true&sd=true)
* [The RISC-V Instruction Set Manual: Volume I: Unprivileged ISA](https://content.riscv.org/wp-content/uploads/2019/06/riscv-spec.pdf)
- [Intro to Assembly Language and RISC-V](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec06.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0aqsesqf46rxjtV2mkiwJOmr)
* Week 3 (Oct 12): RISC-V
- [Intro to Assembly Language and RISC-V](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec06.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0aqsesqf46rxjtV2mkiwJOmr)
* [RISC-V Assembly Programmer's Manual](https://github.com/riscv/riscv-asm-manual/blob/master/riscv-asm.md)
- [RISC-V lw, sw, Decisions I](https://docs.google.com/presentation/d/18UZBHGbQK9c6Rf7sYtntCp5u8NRNhGF_/edit?usp=sharing&ouid=113685665535544054506&rtpof=true&sd=true) / [video](https://youtu.be/5hwH9ofpNzI)
- [RISC-V Decisions II](https://docs.google.com/presentation/d/1cUGL6P4BDPz3eDHZco9qHJXsTc76TBnG/edit?usp=sharing&ouid=113685665535544054506&rtpof=true&sd=true)
- [Lab1: RV32I Simulator](https://hackmd.io/@sysprog/H1TpVYMdB)
- Assignment: [Homework1: RISC-V Assembly and Instruction Pipeline](https://hackmd.io/@sysprog/2021-arch-homework1) (Due: Oct 25, 2021)
* Week 4 (Oct 19): RISC-V
- Announcement:
+ Next quiz is scheduled to Oct 26
+ Code Review for [Homework 1](https://hackmd.io/@sysprog/2021-arch-homework1) on Oct 26
+ We might be in a physical classroom next week. Please check the latest announcement via email.
- Apple M1 Pro/Max
+ [ARM1 (1985) vs. Apple M1 Max (2021)](https://twitter.com/kenshirriff/status/1450179024639049731)
+ [Apple Announces M1 Pro & M1 Max: Giant New Arm SoCs with All-Out Performance](https://www.anandtech.com/show/17019/apple-announced-m1-pro-m1-max-giant-new-socs-with-allout-performance)
- [More RISC-V Functions](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec07.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0apCzwwwJGKn2p57tnhtSIIz)
- [Compiler, Assembler, Linker, Loader](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec09.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0aoprCVNj3PG1kx7DTm3Qs6q)
- [2020-Quiz2](https://hackmd.io/@sysprog/arch2020-quiz2)
* [solution](https://hackmd.io/@sysprog/arch2020-quiz2-sol)
* Week 5 (Oct 26): Quiz + Code Review (Room 4201 (1F) at (old) CSIE Building)
- [Quiz2](https://hackmd.io/@sysprog/arch2021-quiz2): RISC-V assembly and C programming / [solution](https://hackmd.io/@sysprog/arch2021-quiz2-sol)
- Code Review on [Homework1: RISC-V Assembly and Instruction Pipeline](https://hackmd.io/@sysprog/2021-arch-homework1)
* Week 6 (Nov 2): RISC-V Instruction Format + GNU Toolchain + Code Review (Room 4201 (1F) at (old) CSIE Building)
- Next week: [digital logic](https://www.ptt.cc/bbs/Soft_Job/M.1587694288.A.3B5.html)
- Code Review on [Homework1: RISC-V Assembly and Instruction Pipeline](https://hackmd.io/@sysprog/2021-arch-homework1)
- [Lab2: RISC-V RV32I[MA] emulator with ELF support](https://hackmd.io/@sysprog/rJAufgHYS)
- Assignment: [Homework2: RISC-V Toolchain](https://hackmd.io/@sysprog/2021-arch-homework2) (Due: Nov 15)
- Further reading [FPGA design for Software Engineers](https://www.walknsqualk.com/post/014-tiny-fpga-bx/)
- [RISC-V Instruction Formats](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec08.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0apqzuxnUN2fkwt1IGbu3km3)
* Week 7 (Nov 9): Digital Systems
* Announcement: New quiz on Nov 16
* Next generation of rv32emu: [sysprog21/rv32emu-next](https://github.com/sysprog21/rv32emu-next)
- [Combinational Digital Logic](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec10.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0ap04XFOxcFT2_Bflnz_RHWU)
- [Sequential Digital Logic](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec11.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0arH8SCGZilk8Wn_2B45SOpW)
- [2020-Quiz3](https://hackmd.io/@sysprog/arch2020-quiz3)
* [solution](https://hackmd.io/@sysprog/arch2020-quiz3-sol)
* Week 8 (Nov 16): Datapath and Control
- Announcement: Due to internal problems of HackMD (pictures were not shown), we would take new scoring method to eliminate the impact. Next week, we have an additional quiz dedicated to Combinational and Sequential Digital Logic.
- [Quiz3](https://hackmd.io/@sysprog/arch2021-quiz3): RISC-V programming and instruction encoding + Digital systems / [solution](https://hackmd.io/@sysprog/arch2021-quiz3-sol)
- [RISC-V CPU Datapath, Control Intro](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec12.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0arQ_gDRnVS4ams3sUajgfEL)
- [Single-Cycle CPU Control](https://drive.google.com/drive/folders/1QAqqFyQUAu8GE_FvvqGHlF_Nk5VKzleC) / [video](https://youtu.be/0WnPU46zjbA)
* Week 9 (Nov 23): Pipeline
- Announcement:
+ Next quiz is scheduled to Dec 7
- [Quiz4](https://hackmd.io/@sysprog/arch2021-quiz4): Digital systems / [solution](https://hackmd.io/@sysprog/arch2021-quiz4-sol)
- video: [Are Computers Still Getting Faster?](https://youtu.be/IuLxX07isNg)
- MIT 6.004 [L15: Introduction to Pipelining](https://youtu.be/5NQkhqZe8_8), [L16: Processor Pipelining](https://youtu.be/TMpjvAvQCWA), [L17: Implementing Pipelining](https://youtu.be/Pr3-iFE-nCQ)
* slides: [Introduction to Pipelining](https://6004.mit.edu/web/_static/fall21/resources/sp21/L12.pdf)
* slides: [Pipelined Processors](https://6004.mit.edu/web/_static/fall21/resources/sp21/L19.pdf)
* [note](https://computationstructures.org/lectures/pbeta/pbeta.html)
* Week 10 (Nov 30): Pipelined Processors
- Announcement:
+ Next quiz is scheduled to Dec 7
+ Homework3: [SoftCPU](https://hackmd.io/@sysprog/2021-arch-homework3) is out.
+ Next week, we will review all the assignments.
- [0 to ASIC](https://docs.google.com/presentation/d/14npvuiGxsS3C-yo2vOsbZpNKGehwTtIYRFN6k3ZVR4M/edit#slide=id.p)
- [L16: Processor Pipelining](https://youtu.be/TMpjvAvQCWA), [L17: Implementing Pipelining](https://youtu.be/Pr3-iFE-nCQ), [L18: Implementing Pipelined Processors](https://youtu.be/WdbCaCoOgVY) / [note](https://computationstructures.org/lectures/pbeta/pbeta.html)
* slides: [Pipelined Processors](https://6004.mit.edu/web/_static/fall21/resources/sp21/L19.pdf)
* slides: [Pipelined Processors
Data and Control Hazards](https://6004.mit.edu/web/_static/fall21/resources/sp21/L20.pdf)
- [RISC-V 5-Stage Pipeline / Hazards](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec14.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0aq-xpoKcmd7X9w-l6KHiNMa)
- [Complex Pipelines, Out-of-Order Issue, Register Renaming](https://inst.eecs.berkeley.edu/~cs152/sp19/lectures/L10-ComplexPipes.pdf)
- [Lab3: srv32 - RISCV RV32IM Soft CPU](https://hackmd.io/@sysprog/S1Udn1Xtt)
- Assignment: [Homework3: SoftCPU](https://hackmd.io/@sysprog/2021-arch-homework3) (Due: Dec 20, 2021)
- [2020 Quiz4](https://hackmd.io/@sysprog/arch2020-quiz4)
* [solution](https://hackmd.io/@sysprog/arch2020-quiz4-sol)
* Week 11 (Dec 7): Quiz + Homework Review
- [Quiz5](https://hackmd.io/@sysprog/arch2021-quiz5): RISC-V programming + datapath + control + pipelined processor / [solution](https://hackmd.io/@sysprog/arch2021-quiz5-sol)
- [Homework1](https://hackmd.io/@sysprog/2021-arch-homework1), [Homework2](https://hackmd.io/@sysprog/2021-arch-homework2)
* Week 12 (Dec 14): Cache + Virtual Memory
- Announcement: Quiz on Dec 21 - pipeline, cache and virtual memory
- [Caches: Direct-mapped, set-associative](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec16.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0apRiQ2QPjzyq8APGEjnqW1w)
- [Multi-level Caches, Cache Questions](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec17.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0aqHsuO6U2bIpwDGqO6UAetk)
- [The golden age of ever-changing computer architecture](https://hackaday.com/2019/11/27/the-golden-age-of-ever-changing-computer-architecture/)
* [Cerebras](https://cerebras.net/) announced a system which connects multiple integrated circuits (commonly called "chips") into a neural network with many connections in Aug 2021. It enables a single system to support AI models with more than 120 trillion parameters.
- [Virtual Memory](https://6004.mit.edu/web/_static/fall21/resources/sp21/L18.pdf) / [video](https://youtu.be/TsxZlXOrt8U)
* UCB: [Virtual Memory](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec19.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0ar2Wia7JngBFMmwRlr4s79j)
- [2020-Quiz5](https://hackmd.io/@sysprog/arch2020-quiz5) / [solution](https://hackmd.io/@sysprog/arch2020-quiz5-sol)
* Week13 (Dec 21): Quiz + Virtual Memory + Operating System
- Announcement:
+ Be aware of term projects.
+ Next week, we will review all the assignments.
- [Quiz6](https://hackmd.io/@sysprog/arch2021-quiz6): pipelined processor + cache + virtual memory / [solution](https://hackmd.io/@sysprog/arch2021-quiz6-sol)
- [Virtual Memory](https://6004.mit.edu/web/_static/fall21/resources/sp21/L18.pdf) / [video](https://youtu.be/TsxZlXOrt8U)
- [Lab4: Cache](https://cs61c.org/fa20/labs/lab08/)
+ [Reference work](https://hackmd.io/@Lt35rTMeTi22rWqrBgSQzg/SkXXQ_LJ8)
- [Operating Systems](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec18.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0arq3vh2gcLvr5isLK4CuK3B)
- [Term projects 2020](https://hackmd.io/@sysprog/arch2020-projects)
* Week14 (Dec 28): Synchronization
- Announcement:
* Quiz on Jan 11
* Your grades will be delivered on Jan 21, 2022
* Check the listing of final/term projects
- [Term projects 2021](https://hackmd.io/@sysprog/arch2021-projects)
- [Synchronization](https://6004.mit.edu/web/_static/fall21/resources/sp21/L21.pdf) / [video](https://youtu.be/r8H_af_dCF0)
- [Thread-Level Parallelism](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec22.pdf) / [video](https://youtu.be/QLdN6p7-43U)
+ Let's skip OpenMP part
* Week15 (Jan 4): Operating System and RISC-V, cache coherence
- Announcement:
* Quiz7 on Jan 11
* Check [the listing of final/term projects](https://hackmd.io/@sysprog/arch2021-projects)
- video: [The Future of Operating Systems on RISC-V](https://youtu.be/emnN9p4vhzk) / [transcript](https://www.infoq.com/presentations/risc-v-future/)
- [Multithreading Issues, Cache Coherency](https://inst.eecs.berkeley.edu/~cs61c/su20/pdfs/lectures/lec23.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0aqgj_8Og51XoE7iyAu5yEWZ)
+ Let's skip OpenMP part
- [Freestanding RISC-V Programs](https://youtu.be/iml0DBo5yqo)
+ [bare metal](https://en.wikipedia.org/wiki/Bare_machine)
- [Multithreaded Application Synchronization Part I](https://youtu.be/kk8q5rwm1ZI)
+ Taken from [CSCI 463: Computer Architecture and Systems Organization](http://faculty.cs.niu.edu/~winans/CS463/2021-fa/)
+ [RISC-V spec references the word 'hart' - what does 'hart' mean?](https://stackoverflow.com/questions/42676827/risc-v-spec-references-the-word-hart-what-does-hart-mean)
- [Multithreaded Application Synchronization Part II](https://youtu.be/dAVZTHxC16w)
+ RISC-V AMOSWAP instruction
- [Advanced topics on Synchronization - 1](https://inst.eecs.berkeley.edu/~cs152/sp20/lectures/L19-MCM.pdf)
- [Advanced topics on Synchronization - 2](https://inst.eecs.berkeley.edu/~cs152/sp20/lectures/L22-Synch.pdf)
- [2020 Quiz6](https://hackmd.io/@sysprog/arch2020-quiz6)
* [solution](https://hackmd.io/@sysprog/arch2020-quiz6-sol)
* Week16 (Jan 11): I/O
- [Quiz7](https://hackmd.io/@sysprog/arch2021-quiz7) / [solution](https://hackmd.io/@sysprog/arch2021-quiz7-sol)
- [I/O: Devices, Polling, Interrupts](https://drive.google.com/drive/folders/1NRoyYSbAyarMhmPD5LiY6YEqYpLoZx_s) / [video](https://youtu.be/0dyqcFC_q2Q?t=1247)
* Traps/Interrupts/Exceptions
* Trap Handling in 5-Stage Pipeline
* Week17 (Jan 18): Modern Processors
- [listing of final/term projects](https://hackmd.io/@sysprog/arch2021-projects)
- [Modern Processor Architecture](https://6004.mit.edu/web/_static/fall21/resources/sp21/L22.pdf) / [video](https://youtu.be/sbGtFtxqkkg)
- [Introduction to Dynamic Branch Prediction](https://youtu.be/PFmx2p6NA0A), [Advanced Branch Prediction](https://youtu.be/avp3bDqCXYM), [Tournament Predictors and Branch Prediction Accuracy](https://youtu.be/-T8yDJ8vTuI)
- Project: [Analyze and improve srv32](https://hackmd.io/@peishan/HkJrtKpoY)
- [Hardware Based Speculation](https://youtu.be/mFtX28lH4O8)
Computer Architecture (Fall 2020)
------------------------------------------------------
* Week 1
- David Patterson: [A New Golden Age for Computer Architecture: History, Challenges and Opportunities](https://content.riscv.org/wp-content/uploads/2018/12/A-New-Golden-Age-for-Computer-Architecture-History-Challenges-and-Opportunities-David-Patterson-.pdf) / [video](https://youtu.be/uyc_pDBJotI)
* [Article](https://cacm.acm.org/magazines/2019/2/234352-a-new-golden-age-for-computer-architecture/fulltext), [note](https://github.com/cristiean/notes/blob/4c4ceb291ba68c55659ab0d4571385c8cccacd21/a-new-golden-age-for-computer-architecture.md)
- David Patterson: [From Mainframe CPUs to Neural-Network TPUs and Open RISC-V](https://riscv.org/wp-content/uploads/2017/05/Mon0915-RISC-V-50-Years-Computer-Arch.pdf) / [video](https://youtu.be/eH9_ygsio3I)
- [Great Ideas in Computer Architecture, Intro](https://drive.google.com/open?id=1Y4yUaw9vryZcdc4Xu0RQxHfqjVbeHJLF) / [video](https://youtu.be/u_hXH5-tbM4?t=263)
- [Number Representation](https://drive.google.com/drive/folders/1_Zbt8KdwieLsqRdfc6aNBOa2_hEmFkxR)
- [Floating Point](https://drive.google.com/drive/folders/147xm_DhklkevG6602mH4yoGuVMw-3GQZ?usp=sharing)
- [C Memory Management](https://drive.google.com/drive/folders/1pHpHRvjEg5TdidIp_fkOrh6TvMlYl5Yj?usp=sharing) / [video](https://youtu.be/fhEE4J4QCps)
* Week 2: Quiz + RISC-V
- [Quiz1](/arch/arch2020-quiz1.pdf): C programming, bit-wise operations, number representation, floating-point / [Solution](/arch/2020-quiz1-sol.pdf)
- News: [NVIDIA to Acquire Arm for $40 Billion, Creating World’s Premier Computing Company for the Age of AI](https://nvidianews.nvidia.com/news/nvidia-to-acquire-arm-for-40-billion-creating-worlds-premier-computing-company-for-the-age-of-ai)
- [Lab0: Web-based Emulators](https://hackmd.io/@sysprog/SJ7ht_MuS)
- [Introduction to RISC-V Assembly language : Arithmetic](https://drive.google.com/drive/folders/1dtSqX4RlLlfXk2jN8J1vvior35z_5QfZ)
* [The RISC-V Instruction Set Manual: Volume I: Unprivileged ISA](https://content.riscv.org/wp-content/uploads/2019/06/riscv-spec.pdf)
- [Intro to Assembly Language and RISC-V](https://cs61c.org/su20/lectures/?file=lec06.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0aqsesqf46rxjtV2mkiwJOmr)
* Week 3: RISC-V
- [Intro to Assembly Language and RISC-V](https://cs61c.org/su20/lectures/?file=lec06.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0aqsesqf46rxjtV2mkiwJOmr)
* [RISC-V Assembly Programmer's Manual](https://github.com/riscv/riscv-asm-manual/blob/master/riscv-asm.md)
- [RISC-V lw, sw, Decisions I](https://drive.google.com/open?id=1sPgw8TnaLNvL71uaXLE_vNaXmNrbRHNc) / [video](https://youtu.be/5hwH9ofpNzI)
- [RISC-V Decisions II](https://drive.google.com/drive/folders/16-usv7Hk1XmIE4HP-nTzFKtkvuSlFCg8?usp=sharing)
- [Lab1: RV32I Simulator](https://hackmd.io/@sysprog/H1TpVYMdB)
- Assignment: [Homework1: RISC-V Assembly and Instruction Pipeline](https://hackmd.io/@sysprog/2020-arch-homework1) (Due: Oct 5)
* Week 4: RISC-V
- Announcement:
+ quiz rescheduled to Oct 6
+ Code Review for Homework 1 on Oct 6
- [More RISC-V Functions](https://cs61c.org/su20/lectures/?file=lec07.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0apCzwwwJGKn2p57tnhtSIIz)
- [Compiler, Assembler, Linker, Loader](https://cs61c.org/su20/lectures/?file=lec09.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0aoprCVNj3PG1kx7DTm3Qs6q)
* Week 5: Quiz + Code Review
- [Quiz2](https://hackmd.io/@sysprog/arch2020-quiz2)
* [solution](https://hackmd.io/@sysprog/arch2020-quiz2-sol)
- Code Review on [Homework1: RISC-V Assembly and Instruction Pipeline](https://hackmd.io/@sysprog/2020-arch-homework1)
* Week 6: RISC-V and Toolchain
- [Collaborative notes](https://hackmd.io/58CYrCJhS56clW7CF9AZeg)
- Next week: [digital logic](https://www.ptt.cc/bbs/Soft_Job/M.1587694288.A.3B5.html)
- Code Review on [Homework1: RISC-V Assembly and Instruction Pipeline](https://hackmd.io/@sysprog/2020-arch-homework1)
- [Lab2: RISC-V RV32I[MA] emulator with ELF support](https://hackmd.io/@sysprog/rJAufgHYS)
- Assignment: [Homework2: RISC-V Toolchain](https://hackmd.io/@sysprog/2020-arch-homework2) (Due: Oct 26)
- Further reading [FPGA design for Software Engineers](https://www.walknsqualk.com/post/014-tiny-fpga-bx/)
- [RISC-V Instruction Formats](https://cs61c.org/su20/lectures?file=lec08.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0apqzuxnUN2fkwt1IGbu3km3)
* Week 7: Digital Systems
* [nand2tetris](https://www.nand2tetris.org/) / [TED Talk](https://www.ted.com/talks/shimon_schocken_the_self_organizing_computer_course)
* Next generation of rv32emu: [sysprog21/rv32emu-next](https://github.com/sysprog21/rv32emu-next)
- [Combinational Digital Logic](https://cs61c.org/su20/lectures?file=lec10.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0ap04XFOxcFT2_Bflnz_RHWU)
- [Sequential Digital Logic](https://cs61c.org/su20/lectures?file=lec11.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0arH8SCGZilk8Wn_2B45SOpW)
* Week 8: Datapath
- [Quiz3](https://hackmd.io/@sysprog/arch2020-quiz3)
* [solution](https://hackmd.io/@sysprog/arch2020-quiz3-sol)
- [Lab3: Reindeer - RISCV RV32I[M] Soft CPU](https://hackmd.io/@sysprog/rJw2A5DqS)
- [RISC-V CPU Datapath, Control Intro](https://cs61c.org/su20/lectures/?file=lec12.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0arQ_gDRnVS4ams3sUajgfEL)
- Assignment: [Homework3: SoftCPU](https://hackmd.io/@sysprog/2020-arch-homework3) (Due: Nov 16)
* Week 9: Control, Pipeline
- [Collaborative notes](https://hackmd.io/58CYrCJhS56clW7CF9AZeg)
- Announcement: quiz4 on Nov17: CPU datapath, control, pipeline
- video: [Are Computers Still Getting Faster?](https://youtu.be/IuLxX07isNg)
- [Single-Cycle CPU Control](https://drive.google.com/drive/folders/1QAqqFyQUAu8GE_FvvqGHlF_Nk5VKzleC) / [video](https://youtu.be/0WnPU46zjbA)
- MIT 6.004 [L15: Introduction to Pipelining](https://youtu.be/5NQkhqZe8_8), [L16: Processor Pipelining](https://youtu.be/TMpjvAvQCWA), [L17: Implementing Pipelining](https://youtu.be/Pr3-iFE-nCQ)
* Week 10: Pipelined Processors
- News: [XuanTie C906 based Allwinner RISC-V processor to power $12+ Linux SBC’s](https://www.cnx-software.com/2020/11/09/xuantie-c906-based-allwinner-risc-v-processor-to-power-12-linux-sbcs/)
- [0 to ASIC](https://docs.google.com/presentation/d/14npvuiGxsS3C-yo2vOsbZpNKGehwTtIYRFN6k3ZVR4M/edit#slide=id.p)
- [RISC-V: Why the ISA battles are not over yet](https://hackaday.com/2019/11/12/risc-v-why-the-isa-battles-arent-over-yet)
- [L18: Implementing Pipelined Processors](https://youtu.be/WdbCaCoOgVY)
- [RISC-V 5-Stage Pipeline / Hazards](https://cs61c.org/su20/lectures?file=lec14.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0aq-xpoKcmd7X9w-l6KHiNMa)
- [Complex Pipelines, Out-of-Order Issue, Register Renaming](https://inst.eecs.berkeley.edu/~cs152/sp19/lectures/L10-ComplexPipes.pdf)
* Week 11: Quiz + Homework Review
- [Quiz4](https://hackmd.io/@sysprog/arch2020-quiz4)
* [solution](https://hackmd.io/@sysprog/arch2020-quiz4-sol)
- [13-Year-Old, Nicholas Sharkey, Creates a RISC-V Core](https://riscv.org/blog/2020/11/13-year-old-nicholas-sharkey-creates-a-risc-v-core/)
- [ARM1 vs. Apple M1](https://twitter.com/kenshirriff/status/1327021630636212224)
* Week 12: Cache + Virtual Memory
- Announcement: Quiz on Dec 1 - pipeline, cache and virtual memory
- [Caches: Direct-mapped, set-associative](https://cs61c.org/su20/lectures?file=lec16.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0apRiQ2QPjzyq8APGEjnqW1w)
- [Multi-level Caches, Cache Questions](https://cs61c.org/su20/lectures?file=lec17.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0aqHsuO6U2bIpwDGqO6UAetk)
- [The golden age of ever-changing computer architecture](https://hackaday.com/2019/11/27/the-golden-age-of-ever-changing-computer-architecture/)
- [Virtual Memory](https://6004.mit.edu/web/_static/fall20/resources/lectures/L18.pdf) / [video](https://youtu.be/TsxZlXOrt8U)
* Week13: Quiz + Virtual Memory
- [Quiz5](https://hackmd.io/@sysprog/arch2020-quiz5)
* [solution](https://hackmd.io/@sysprog/arch2020-quiz5-sol)
- [Virtual Memory](https://6004.mit.edu/web/_static/fall20/resources/lectures/L18.pdf) / [video](https://youtu.be/TsxZlXOrt8U)
- [Term projects 2019](https://hackmd.io/@wsp50317/H1Qa8hVk8)
* Implement [RISC-V Compressed Instruction Set](https://www2.eecs.berkeley.edu/Pubs/TechRpts/2015/EECS-2015-209.pdf) on [rv32emu](https://github.com/sysprog21/rv32emu)
* Implement [RISC-V Compressed Instruction Set](https://www2.eecs.berkeley.edu/Pubs/TechRpts/2015/EECS-2015-209.pdf) for [Reindeer](https://github.com/PulseRain/Reindeer), based on pull request [RV32C support](https://github.com/PulseRain/Reindeer/pull/25). must be validated on Step CYC10 FPGA board.
* Contribute to [Ripes](https://github.com/mortbopet/Ripes/issues): pick up pending issues, work on them, and finally send pull request(s).
* Prepare practical tutorials for [VSRTL](https://github.com/mortbopet/VSRTL/tree/master/docs), thus people can follow the instructions for implementing minimal RISC-V core such as [minrv32](https://github.com/arghhhh/minrv32).
* Analyze [spu32](https://github.com/maikmerten/spu32) with Yosys open synthesis suite. Explain how it works and validate it.
* Analyze [VexRiscv](https://github.com/SpinalHDL/VexRiscv). Explain how it works and validate it.
* Modify [Reindeer](https://github.com/PulseRain/Reindeer) to allow non-trial interactive games on Step CYC10 FPGA board, based on [Reindeer_Step](https://github.com/PulseRain/Reindeer_Step) and Zephyr RTOS.
- [Lab4: Cache](https://cs61c.org/fa20/labs/lab08/)
+ [Reference work](https://hackmd.io/@Lt35rTMeTi22rWqrBgSQzg/SkXXQ_LJ8)
* Week14: Synchronization
- Announcement: Quiz on Dec 22
- Assignment: [Homework4: Cache](https://hackmd.io/@sysprog/2020-arch-homework4) (Due: Dec 26)
- [Operating Systems](https://cs61c.org/su20/lectures?file=lec18.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0arq3vh2gcLvr5isLK4CuK3B)
- [Synchronization](https://6004.mit.edu/web/_static/fall20/resources/lectures/L21.pdf) / [video](https://youtu.be/r8H_af_dCF0)
- [Thread-Level Parallelism](https://drive.google.com/drive/folders/1YtT3FEpZAROeZT5gg-uKgxO5hp0N2ii-) / [video](https://youtu.be/QLdN6p7-43U)
* Week15: Operating System and RISC-V
- [Term projects 2020](https://hackmd.io/@sysprog/arch2020-projects)
* You must provide the materials and demonstrate to the lecturer before Jan 19, 2021
- video: [The Future of Operating Systems on RISC-V](https://youtu.be/emnN9p4vhzk) / [transcript](https://www.infoq.com/presentations/risc-v-future/)
- [Advanced topics on Synchronization - 1](https://inst.eecs.berkeley.edu/~cs152/sp20/lectures/L19-MCM.pdf)
- [Advanced topics on Synchronization - 2](https://inst.eecs.berkeley.edu/~cs152/sp20/lectures/L22-Synch.pdf)
* Week16: I/O, cache coherence
- [Term projects 2020](https://hackmd.io/@sysprog/arch2020-projects)
* You must provide the materials and demonstrate to the lecturer before Jan 19, 2021
- [Quiz6](https://hackmd.io/@sysprog/arch2020-quiz6)
* [solution](https://hackmd.io/@sysprog/arch2020-quiz6-sol)
- [I/O: Devices, Polling, Interrupts](https://drive.google.com/drive/folders/1NRoyYSbAyarMhmPD5LiY6YEqYpLoZx_s) / [video](https://youtu.be/0dyqcFC_q2Q?t=570)
* Traps/Interrupts/Exceptions
* Trap Handling in 5-Stage Pipeline
- [Multithreading Issues, Cache Coherency](https://cs61c.org/su20/lectures?file=lec23.pdf) / [video](https://www.youtube.com/playlist?list=PLDoI-XvXO0aqgj_8Og51XoE7iyAu5yEWZ)
- [Cache Coherence](https://6004.mit.edu/web/_static/fall20/resources/lectures/L22.pdf) / [video](https://youtu.be/vxrok3KKuGQ)
* Modern microprocessors usually have 2 to 8 cores where each core has a private cache for performance
* Modified/Shared/Invalid (MSI) Protocol, MESI: An Enhanced MSI protocol to increased performance for private read-write data
* Week17: class will be suspended
* Week18
- [Modern Processor Architecture](https://6004.mit.edu/web/_static/fall20/resources/lectures/L23.pdf) / [video](https://youtu.be/sbGtFtxqkkg)
- [Introduction to Dynamic Branch Prediction](https://youtu.be/PFmx2p6NA0A), [Advanced Branch Prediction](https://youtu.be/avp3bDqCXYM), [Tournament Predictors and Branch Prediction Accuracy](https://youtu.be/-T8yDJ8vTuI), [Hardware Based Speculation](https://youtu.be/mFtX28lH4O8)
Computer Architecture (Fall 2019)
------------------------------------------------------
* Week 1 (Sep 12)
- David Patterson: [A New Golden Age for Computer Architecture: History, Challenges and Opportunities](https://content.riscv.org/wp-content/uploads/2018/12/A-New-Golden-Age-for-Computer-Architecture-History-Challenges-and-Opportunities-David-Patterson-.pdf) / [video](https://youtu.be/uyc_pDBJotI)
* [Article](https://cacm.acm.org/magazines/2019/2/234352-a-new-golden-age-for-computer-architecture/fulltext), [note](https://cyyeh.github.io/new-golden-age-for-computer-architecture/)
* [From Mainframe CPUs to Neural-Network TPUs and Open RISC-V](https://youtu.be/eH9_ygsio3I)
- [Great Ideas in Computer Architecture, Intro](https://drive.google.com/open?id=1Y4yUaw9vryZcdc4Xu0RQxHfqjVbeHJLF) / [video](https://youtu.be/u_hXH5-tbM4)
- [Number Representation](https://drive.google.com/drive/folders/1_Zbt8KdwieLsqRdfc6aNBOa2_hEmFkxR)
* [解讀計算機編碼](https://hackmd.io/@sysprog/rylUqXLsm), [基於 C 語言標準研究與系統程式安全議題](https://hackmd.io/@sysprog/S15o_K3cQ)
- [Floating Point](https://drive.google.com/drive/folders/147xm_DhklkevG6602mH4yoGuVMw-3GQZ?usp=sharing) / [C 語言: 數值系統](https://hackmd.io/s/BkRKhQGae)
- [C Memory Management](https://drive.google.com/drive/folders/1pHpHRvjEg5TdidIp_fkOrh6TvMlYl5Yj?usp=sharing) / [video](https://youtu.be/fhEE4J4QCps)
* Week 2 (Sep 19): Quiz
- [Form of the contact information](https://forms.gle/qx8FHJgepCwNtwnA9)
* Week 3 (Sep 26): Suspension
* Week 4 (Oct 3): RISC-V
- [Lab0: Web-based Emulators](https://hackmd.io/@sysprog/SJ7ht_MuS)
- [Introduction to RISC-V Assembly language : Arithmetic](https://drive.google.com/drive/folders/1dtSqX4RlLlfXk2jN8J1vvior35z_5QfZ)
* [The RISC-V Instruction Set Manual: Volume I: Unprivileged ISA](https://content.riscv.org/wp-content/uploads/2019/06/riscv-spec.pdf), [RV32I](https://tclin914.github.io/16df19b4/), [深度剖析 RISC-V 處理器熱潮](https://www.edntaiwan.com/news/article/20181211NT31-analysis-the-wave-of-RISC-V-processor)
- [RISC-V lw, sw, Decisions I](https://drive.google.com/open?id=1sPgw8TnaLNvL71uaXLE_vNaXmNrbRHNc) / [video](https://youtu.be/5hwH9ofpNzI)
- [RISC-V Decisions II](https://drive.google.com/drive/folders/16-usv7Hk1XmIE4HP-nTzFKtkvuSlFCg8?usp=sharing)
- [RISC-V Procedure](https://drive.google.com/drive/folders/1cfEGzvxlVuSPuY-vN9YR-XlkJwfL2Ana)
- [Lab1: R32I Simulator](https://hackmd.io/@sysprog/H1TpVYMdB)
- Practice: [Floating Point + RISC-V Intro](https://cs61c.org/disc/disc3sol.pdf)
- Assignment: [Homework1: RISC-V Assembly and Instruction Pipeline](https://hackmd.io/ZHsZ-7HBTvqtH8SoDHxQoQ) (Due: Oct 16, 2019)
* Week 5 (Oct 10): Holiday
* Week 6 (Oct 17): RISC-V and Toolchain
- [Lab2: RISC-V RV32I[MA] emulator with ELF support](https://hackmd.io/@sysprog/rJAufgHYS)
- RISC-V Instruction Formats I / [video](https://youtu.be/ZQFcqLUduEY)
- [Compilation, Assembly, Linking, Loading](https://drive.google.com/drive/folders/1oJIZ_c88oJVuXPE1JqgdvyoIlRFJ20hI?usp=sharing)
+ [你所不知道的 C 語言: 編譯器和最佳化原理篇](https://hackmd.io/s/Hy72937Me), [你所不知道的 C 語言: 連結器和執行檔資訊](https://hackmd.io/s/SysiUkgUV), [你所不知道的 C 語言: 執行階段程式庫 (CRT)](https://hackmd.io/s/Hkcr5cn97)
- Assignment: [Homework2: RISC-V Toolchain](https://hackmd.io/FzhnlsLVQNybzn3QenEcgw) (Due: Oct 30, 2019)
- Further reading [FPGA design for Software Engineers](https://www.walknsqualk.com/post/014-tiny-fpga-bx/)
* Week 7 (Oct 24): RISC-V and Digital Systems
- ANN: Next week, we will have another quiz.
- [RISC-V Procedures](https://drive.google.com/drive/folders/1cfEGzvxlVuSPuY-vN9YR-XlkJwfL2Ana)
- Practice: [RISC-V Control Flow](https://cs61c.org/disc/disc4sol.pdf), [CALL, RISC-V Procedures](https://cs61c.org/disc/disc05sol.pdf)
- Practice: [CS 152 Computer Architecture and Engineering - Midterm #1](https://inst.eecs.berkeley.edu/~cs152/sp19/handouts/sp19/sp19-midterm-1-sol.pdf)
+ Problem 2: Microcoding: writing microcode for a bus-based implementation of the RISC-V machine
+ Problem 3: 5-Stage Pipelines
- [Intro to Synchronous Digital Systems](https://drive.google.com/drive/folders/1UgD80q-fC-7VU4Kxs3eX6izDGv-YStUX) / [video](https://youtu.be/w1EHBcj9NmM?t=149)
* [handout](https://cs61c.org/assets/resources/sds.pdf)
* [nand2tetris](https://www.nand2tetris.org/)
- [State](https://drive.google.com/drive/folders/191hgpogLZeeHtHD7ItfU5Er6ercTuqM5)
- [Combinational Logic](https://drive.google.com/drive/folders/12eeJc-QN72OulGnzR3Bp468n09abAbCZ)
- [Combinational Logic Blocks](https://drive.google.com/drive/folders/1qZBfSlfpKvgdO-_hMX6nszaaKWZbNyQV) / [video](https://youtu.be/RCgPysqIcWM)
- Practice: [Logic](https://cs61c.org/disc/disc06sol.pdf)
* Week 8 (Oct 31): Datapath
- [Lab3: Reindeer - RISCV RV32I[M] Soft CPU](https://hackmd.io/@sysprog/rJw2A5DqS)
- [Single-Cycle CPU Datapath I](https://drive.google.com/drive/folders/1bPhEZJhqMB66nA3vLsC_BOCXJUgyiwrD)
- [Single-Cycle CPU Datapath II](https://drive.google.com/drive/folders/1VpDK9M0zHao0w0ImfGxMFh03iWHZJqpf)
- [Single-Cycle CPU Control](https://drive.google.com/drive/folders/1QAqqFyQUAu8GE_FvvqGHlF_Nk5VKzleC) / [video](https://youtu.be/0WnPU46zjbA)
- [Quiz](https://hackmd.io/@sysprog/r1yNy2PcH)
- Assignment: [Homework3: SoftCPU](https://hackmd.io/SJs--6vcH) (Due: Nov 20, 2019)
* Week 9 (Nov 7): Pipeline
- video: [Are Computers Still Getting Faster?](https://youtu.be/IuLxX07isNg)
- MIT 6.004 [L15: Introduction to Pipelining](https://youtu.be/5NQkhqZe8_8), [L16: Processor Pipelining](https://youtu.be/TMpjvAvQCWA), [L17: Implementing Pipelining](L17: Implementing Pipelining)
* [Lectures and Recitations](https://6004.mit.edu/web/fall19/resources/lectures)
- Practice: [RISC-V Single Cycle Datapath](https://cs61c.org/disc/disc07sol.pdf)
- [IEET Questionnaire Survey](http://ieet.csie.ncku.edu.tw/)
* Week 10 (Nov 14): Pipelined Proccesors
- News: [Next Generation of On-Device Vision Models: MobileNetV3 and MobileNetEdgeTPU](https://ai.googleblog.com/2019/11/introducing-next-generation-on-device.html)
- [RISC-V: Why the ISA battles are not over yet](https://hackaday.com/2019/11/12/risc-v-why-the-isa-battles-arent-over-yet)
- [L18: Implementing Pipelined Processors](https://youtu.be/WdbCaCoOgVY)
- [Complex Pipelines, Out-of-Order Issue, Register Renaming](https://inst.eecs.berkeley.edu/~cs152/sp19/lectures/L10-ComplexPipes.pdf)
- Practice: [Pipelining](https://6004.mit.edu/web/_static/fall19/resources/lectures/L12.ws_solutions.pdf), [RISC-V Pipelining and Hazards](https://cs61c.org/disc/disc08sol.pdf)
- [Quiz](https://hackmd.io/@sysprog/SkJr779oS)
* Week 11 (Nov 21): Cache
- [Cache](https://6004.mit.edu/web/_static/fall19/resources/lectures/L16.pdf) / [video](https://youtu.be/HF-A3EegFQw)
* [Practice: Cache](https://6004.mit.edu/web/_static/fall19/resources/lectures/L16.ws_solutions.pdf)
- [Quiz](https://hackmd.io/@sysprog/Bkobj8mhB)
* Week 12 (Nov 28): Virtual Memory
- [The golden age of ever-changing computer architecture](https://hackaday.com/2019/11/27/the-golden-age-of-ever-changing-computer-architecture/)
- [Virtual Memory](https://6004.mit.edu/web/_static/fall19/resources/lectures/L18.pdf) / [video](https://youtu.be/TsxZlXOrt8U)
* [Practice: Virtual Memory](https://6004.mit.edu/web/_static/fall19/resources/lectures/L18.ws_solutions.pdf)
- [Quiz](https://hackmd.io/H1usNc33S)
* Week13 (Dec 5): [State-of-the-Art mobile computing](https://www.dictionary.com/browse/state-of-the-art) & Synchronization
- Processors in 5G era: Cortex-A77 + Cortex-A55
* Mediatek: [Bringing 5G to Everyone](https://i.mediatek.com/mediatek-5g), [聯發科技首款5G系統單晶片天璣 1000擁有高運算與連網性能](https://news.xfastest.com/interview/73109/)
* [Qualcomm Introduces the World’s Most Advanced 5G Mobile Platform](https://www.qualcomm.com/news/releases/2019/12/04/qualcomm-introduces-worlds-most-advanced-5g-mobile-platform), [高通在 Snapdragon 865 上進一步增強了拍攝和遊戲特性](https://chinese.engadget.com/2019/12/04/snapdragon-865-gigapixel-camera-5g-ai-specs-availability/)
- [The Race to Exascale at Supercomputer 2019](https://www.eetimes.com/document.asp?doc_id=1335333)
- [zh_TW translation](https://www.eettaiwan.com/news/article/20191203NT01-race-to-exascale-at-supercomputer-2019)
- Term projects (due date: Jan 5, 2020)
* [explore the workings of virtual memory, specifically the TLB and the Page Table](https://cs61c.org/labs/lab10/)
* Implement [RISC-V Compressed Instruction Set](https://www2.eecs.berkeley.edu/Pubs/TechRpts/2015/EECS-2015-209.pdf) on [rv32emu](https://github.com/sysprog21/rv32emu)
* Implement [RISC-V Compressed Instruction Set](https://www2.eecs.berkeley.edu/Pubs/TechRpts/2015/EECS-2015-209.pdf) for [Reindeer](https://github.com/PulseRain/Reindeer), based on pull request [RV32C support](https://github.com/PulseRain/Reindeer/pull/25). must be validated on Step CYC10 FPGA board.
* Contribute to [Ripes](https://github.com/mortbopet/Ripes/issues): pick up pending issues, work on them, and finally send pull request(s).
* Prepare practical tutorials for [VSRTL](https://github.com/mortbopet/VSRTL/tree/master/docs), thus people can follow the instructions for implementing minimal RISC-V core such as [minrv32](https://github.com/arghhhh/minrv32).
* Analyze [spu32](https://github.com/maikmerten/spu32) with Yosys open synthesis suite. Explain how it works and validate it.
* Analyze [VexRiscv](https://github.com/SpinalHDL/VexRiscv). Explain how it works and validate it.
* Modify [Reindeer](https://github.com/PulseRain/Reindeer) to allow non-trial interactive games on Step CYC10 FPGA board, based on [Reindeer_Step](https://github.com/PulseRain/Reindeer_Step) and Zephyr RTOS.
- [Synchronization](https://6004.mit.edu/web/_static/fall19/resources/lectures/L21.pdf) / [video](https://youtu.be/r8H_af_dCF0)
* Week14 (Dec 12): Synchronization
- [Intel’s SGX coughs up crypto keys when scientists tweak CPU voltage](https://arstechnica.com/information-technology/2019/12/scientists-pluck-crypto-keys-from-intels-sgx-by-tweaking-cpu-voltage/) / [部分英特爾CPU存在Plundervolt漏洞，駭客可透過操縱電壓來偷取敏感資料](https://www.ithome.com.tw/news/134758)
- [Attacking the ARM's TrustZone](https://blog.quarkslab.com/attacking-the-arms-trustzone.html) / video: [ARM TrustZone for dummies](https://youtu.be/ecBByjwny3s)
- [Synchronization](https://6004.mit.edu/web/_static/fall19/resources/lectures/L21.pdf) / [video](https://youtu.be/r8H_af_dCF0)
* [Advanced topics](https://inst.eecs.berkeley.edu/~cs152/sp19/lectures/L22-Synch.pdf)
- [Thread-Level Parallelism](https://drive.google.com/drive/folders/1YtT3FEpZAROeZT5gg-uKgxO5hp0N2ii-) / [video](https://youtu.be/QLdN6p7-43U)
- [Quiz](https://hackmd.io/@sysprog/S1kq5T0pH)
* Week15 (Dec 19): I/O and Cache Coherence
- Announce: Last quiz on Dec 26, Review final project on Jan 2
- [I/O: Devices, Polling, Interrupts](https://drive.google.com/drive/folders/1NRoyYSbAyarMhmPD5LiY6YEqYpLoZx_s) / [video](https://youtu.be/0dyqcFC_q2Q)
* Traps/Interrupts/Exceptions
* Trap Handling in 5-Stage Pipeline
- [Cache Coherence](https://6004.mit.edu/web/_static/fall19/resources/lectures/L22.pdf) / [video](https://youtu.be/vxrok3KKuGQ)
* Modern microprocessors usually have 2 to 8 cores where each core has a private cache for performance
* Modified/Shared/Invalid (MSI) Protocol, MESI: An Enhanced MSI protocol to increased performance for private read-write data
- [Modern Processor Architecture](https://6004.mit.edu/web/_static/fall19/resources/lectures/L23.pdf) / [video](https://youtu.be/sbGtFtxqkkg)
* Week16 (Dec 26): Review and Branch Prediction
- video: [The Future of Operating Systems on RISC-V](https://youtu.be/emnN9p4vhzk) / [transcript](https://www.infoq.com/presentations/risc-v-future/)
- [Introduction to Dynamic Branch Prediction](https://youtu.be/PFmx2p6NA0A), [Advanced Branch Prediction](https://youtu.be/avp3bDqCXYM), [Tournament Predictors and Branch Prediction Accuracy](https://youtu.be/-T8yDJ8vTuI), [Hardware Based Speculation](https://youtu.be/mFtX28lH4O8)
- [quiz](https://hackmd.io/@sysprog/Sya-GLW18)
- [Table for Term Project](https://hackmd.io/YNOELNJ_RyCMHs81uMz6xA)
* Week17 (Jan 2): Term Project Review
- [Datacenters & Cloud Computing](https://drive.google.com/drive/folders/1IOvNP6d7-Ja-QKRR6l1yYxsQbNCUBzk8)
* video: [Inside a Google data center](https://youtu.be/XZmGGAbHqa0), [Inside Facebook's Oregon data center](https://youtu.be/4A_A-CmrqpQ)
- [Term Project Table](https://hackmd.io/@wsp50317/H1Qa8hVk8)
