PPT-Lecture 5: Interrupts, Superscalar

Professor Alvin R Lebeck Computer Science 220 ECE 252 Fall 2008 Admin Homework 1 Due Today Homework 2 Assigned Reading HampP Chapter 2 amp 3 suggested Research papers not yet ready to read but will be soon. Microarchitecture. Lecture 13: Commit, Exceptions, . Interrupts. The End of the Road (um… Pipe). Commit is typically the last stage of the pipeline. Anything that an instruction does at this point is . of the lecture. :. Chandana. :. 1. . Introduction. 2. Example . 3. Definition . 4. Vector table and . Maskable. /. nonmaskable. interrupts . ________________________________________________. Hao. :. Microarchitecture. Lecture 3: Superscalar . Fetch. Fetch Rate is an ILP Upper Bound. To sustain an execution rate of N IPC, you must be able to sustain a fetch rate of N IPC!. Over the long term, you cannot burn 2000 calories a day while only consuming 1500 calories a day. You will starve!. Anurag Dwivedi. Let Us Revise. Micro-Controllers. A small . computer integrated . in . a single IC. Has I/O pins, . RAM and Memory. We Use . Atmega. 16. Software Used. CvAvr. : Editor and Compiler. Interrupt Handling. David Ferry, Chris Gill. CSE 522S - Advanced Operating Systems. Washington University in St. Louis. St. Louis, MO 63130. 1. Why Interrupts?. Interrupts allow a currently executing process to be preempted. Fall 2009. Kipp Schoenwald. Stephen . Hunte. Joseph Storey. Outline. Interrupts . Vectors and Vector Table. Flow Chart. Applications. Example 1. Example 2. Thermistors. Theory. Applications. Opto-isolators. Interrupts. . Prof. Chung-Ta King. Department of Computer Science. National Tsing Hua University, Taiwan. Materials from . MSP430 Microcontroller Basics. , John H. Davies, Newnes, 2008. 1. From Clock to Timer to CPU. Lecture 6: Superscalar Decode and Other . Pipelining. RISC ISA Format. This should be review…. Fixed-length. MIPS all insts are 32-bits/4 bytes. Few formats. MIPS has 3: R-, I-, J- formats. Alpha has 5: Operate, Op w/ Imm, Mem, Branch, FP. David Ferry, Chris Gill. CSE 422S - Operating Systems Organization. Washington University in St. Louis. St. Louis, MO 63130. 1. Why Interrupts?. Interrupts allow a currently executing process to be preempted. Opto. -isolators, . Triacs. , and Thermistors. Alex Buchanan. Aaron May. Peter Ngo. Reason for Interrupts. You might want a certain subroutine executed immediately after a request from an external device or from an internal program, providing certain conditions are met.. By Connor Sample. What is Simultaneous Multithreading (SMT)?. Describes the ability for a processor to execute multiple instructions from multiple distinct threads at the same time.. Goal: Increased processor throughput as well as optimized utilization of system resources.. Introduction to Operating Systems CPSC/ECE 3220 Fall 2019 Lecture Notes OSPP Chapter 2 – Part B (adapted by Mark Smotherman from Tom Anderson’s slides on OSPP web site) Types of Alerts to Kernel Fall 2014. Hadi Esmaeilzadeh. hadi@cc.gatech.edu. . Georgia Institute of Technology. Some slides adopted from Prof. . Milos . Prvulovic. Better Devices. Now SW, KEY can be read. Problem: several instructions needed to detect change. disable interrupts // Must finish put on queue of threads waiting for lock set guard to 0 call switch enable interrupts else value BUSY guard 0 LockRelease Why disable interrupts N