... of fault-tolerance (correct by construction) Motivation (Continued) ... else Construct the transitions of p'; AddMasking (p,f: transitions, S:StatePredicate, ...
CS 603 Communication and Distributed Systems April 15, 2002 Fault Tolerance What is a fault tolerant program? Safety: Bad things don t happen If fault causes ...
Reuse of the fault-intolerant program. Separation of concerns (functionality vs. fault-tolerance) Potential to preserve properties such as efficiency. One obstacle ...
Design of Tree Algorithm Objectives Learning about satisfying safety and liveness of a distributed program Apply the method of utilizing invariants and fault-span ...
E.g., Cruise control that only works in wet weather ... T. p. 16. Levels of Fault-Tolerance. Failsafe (program p' is failsafe f-tolerant for spec from S) ...
server omits to respond to an input (fail-silent failure) ... if after a first omission, a server omits to produce output until it restarts. Amnesia crash ...
Language / Platform Independent. Implementation Issues: Data Conversion ... Independent Recovery. Problems with 2-PC. Blocking on failure. 3-PC as solution ...
Property ... to add a newly discovered property to the program automatically? ... Using branching time temporal logic to synthesize. synchronization skeletons. ...
Rung-Bin Lin Appendix A. Pipelining: Basic and Intermediate Concept What is Pipelining? Pipelining is an implementation technique whereby multiple instructions are ...
Bilkent University Department of Computer Engineering CS342 Operating Systems Chapter 13 Input/Output (I/O) Systems Dr. Selim Aksoy http://www.cs.bilkent.edu.tr/~saksoy
The OS is running in the supervisor mode; User's program is running ... 2) save the contents of the PC on the stack. 3) save the state of the CPU on the stack. ...
Title: PowerPoint Presentation Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show (4:3) Other titles: Comic Sans MS Arial ...
Title: Overview Subject: Principles of Operating Systems Author: Kui Last modified by: AGate Created Date: 9/20/2002 3:38:13 AM Document presentation format
William Stallings Computer Organization and Architecture 7th Edition Chapter 12 CPU Structure and Function CPU Structure CPU must: Fetch instructions Interpret ...
Silberschatz, Galvin and Gagne 2005. Operating System Concepts. A Typical PC Bus Structure ... Silberschatz, Galvin and Gagne 2005. Operating System Concepts ...
Introduction to Interrupts Computer Organization & Assembly Language Programming Dr Adnan Gutub aagutub at uqu.edu.sa [Adapted from s of Dr. Kip Irvine ...
MIPS In-Order Single-Issue Integer Pipeline Performance of Pipelines with Stalls Pipeline Hazards Structural hazards Data hazards Minimizing Data hazard Stalls by ...
The Pentium Processor Chapter 7 S. Dandamudi Outline Pentium family history Pentium processor details Pentium registers Data Pointer and index Control Segment Real ...
William Stallings Computer Organization and Architecture 8th Edition Chapter 12 Processor Structure and Function CPU Structure CPU must: Fetch instructions Interpret ...
William Stallings Computer Organization and Architecture 7th Edition Chapter 12 CPU Structure and Function CPU Structure CPU must: Fetch instructions Interpret ...
1974: P 8080 8Bit Intel (~6000 Tr.) 1974: P 6800 8Bit Motorola. 1975: P ... DRAM Burst Access Mode. SS03. Microprocessor Systems Prof. Teufel, Dr. Kreft. 37 ...
Resuming: the program continues after the event. ... Handling of Resuming Exceptions. A resuming exception (e.g. a virtual memory page fault) usually requires the ...
Pin ALE (address latch enable) ... stable addresses in any system, ALE is used in the 80286 ... Address bus A0-A19 is latched by 74ALS573 using the ALE signal. ...
An assembly language is a more easily readable form of the instructions that a ... Labels are followed by colons. ADD R2, R3. NOT R2. JUMP NO_ADD. ADD: ...
CPU must have some working space (temporary storage) Called registers ... Nonmaskable. Exceptions. Processor detected. Programmed. Interrupt vector table ...
... produced by the execution of an instruction. such as divide by ... Can also serve as an arbitrator in the case when multiple interrupts arrive at the same time ...
SAL of signed integer x n bit = SF, ZF, PF set accordingly. SAR Op,Length or SAL Op,length ... Internal Interrupt - Generated within Microprocessor itself. I/O request ...
Driver (SW), bus and HW peripheral, physical HW device. Overall, the interface introduces ... Nonmaskable interrupt. An interrupt that cannot be turned off ever ...
CPE/EE 421 Microcomputers: Motorola 68000 The CPU Hardware Model Instructor: Dr Aleksandar Milenkovic Lecture Notes Outline 68000 interface Timing diagram Minimal ...
Provide current time, elapsed time, timer to trigger a certain operation at time T ... ordering via per-device queue: a waiting queue of request for each device ...
Introduction. Taxonomy of interrupts. Interrupt processing. Exceptions. Software interrupts ... Introduction. Interrupts alter a program's flow of control ...
Software latencies due to cache misses, context switches, page faults and ... object of these simulations is to confirm samples from a given distribution have ...