Customer Service Chat
Get quote & make Payment
Identify the critical races, computer science, Basic Computer Science
1. The standard way for debuggers to plant breakpoints in a program in RAM (whatever the processor instruction set) is to save the breakpointed instruction and replace it by a jump to the breakpoint handling code. After the breakpoint is triggered, the saved instruction is restored in its original place. If the interactive dialogue with the debugger during the breakpoint indicates that that the triggered breakpoint is to be removed, execution of the program can be resumed simply by jumping to the instruction that had been breakponted. However, if the dialogue with the debugger indicates that the breakpoint is to remain in place when execution of the program is resumed, implementation is more complicated. Execution of the saved instruction could be emulated, but this is difficult to do, ensuring all side effects such as condition code setting and exception triggering are performed correctly, as well as following all addressing modes, such as PC relative. It is much easier simply to execute the breakpointed instruction in place, but to plant another breakpoint on a subsequent instruction in the same basic block, usually the immediate successor to the original breakpoint, so that the breakpoint handler can regain control in order to replant the original breakpoint and remove the secondary one. This obviously has some challenges if the successor of the breakpointed instruction cannot be statically predicted, for instance if the breakpointed instruction is a conditional jump, but a common solution is simply to ban breakpointing such instructions.
Identify the critical races that exist with this scheme if the program is executed by multiple threads, possibly multiple cores or multiple processors. Use pseudo-code to illustrate how you would resolve these issues.
Posted Date: 2/5/2012 12:47:58 PM | Location : United States
Ask an Expert
Identify the critical races, computer science, Assignment Help, Ask Question on Identify the critical races, computer science, Get Answer, Expert's Help, Identify the critical races, computer science Discussions
Write discussion on Identify the critical races, computer science
Your posts are moderated
Write your message here..
The central processing unit (cpu), THE CENTRAL PROCESSING UNIT (CPU): T...
THE CENTRAL PROCESSING UNIT (CPU): The CPU is the heart of any computing system. It executes the individual machine instructions, which make up a program. The CPU is formed fr
Describe circuit switching and message switching, Question 1 List the Basi...
Question 1 List the Basic essential components of a computer network Question 2 What are the functions of (i) Routers (ii) Bridges Question 3 What are the advantag
How should an ideal hospital software be? , How Should an Ideal Software be...
How Should an Ideal Software be? It should be easy to operate, with minimal training of nursing personnel. Should be reliable, and thoroughly tested in various nur
CAI, what is CAI? explain its pit falls.
what is CAI? explain its pit falls.
Ms dos, what is ms dos?
what is ms dos?
Define internet and explain its working, Question 1 Define Internet and ex...
Question 1 Define Internet and explain its working Question 2 Explain page format specifiers and page content specifiers of XSL-FO Question 3 Write a note on HTML
Display the item in red colour on a web page, QUESTION (a) Give the app...
QUESTION (a) Give the appropriate syntax to implement a Client-Side Image Map, specifying all possible attributes where required (b) List the benefits of using Cascading Sty
Computer education, what is cai explain its pitfalls
what is cai explain its pitfalls
Static ram, STATIC RAM: Flip-Flops are the basic memory cells in a stat...
STATIC RAM: Flip-Flops are the basic memory cells in a static RAM. Each flip-flop is based on either two bipolar transistors or two Metal Oxide Semiconductors Field-Effect Tra
Exercise 2: Green cloud computing, Ask questioMost part of power consumptio...
Ask questioMost part of power consumption in data centers comes from computation processing, disk storage, network and cooling systems. Nowadays, there are new technologies and met
Accounting Assignment Help
Economics Assignment Help
Finance Assignment Help
Statistics Assignment Help
Physics Assignment Help
Chemistry Assignment Help
Math Assignment Help
Biology Assignment Help
English Assignment Help
Management Assignment Help
Engineering Assignment Help
Programming Assignment Help
Computer Science Assignment Help
Why Us ?
~24x7 hrs Support
~Quality of Work
~Time on Delivery
~Privacy of Work
Human Resource Management
Literature Review Writing Help
Follow Us |
T & C
Copyright by ExpertsMind IT Educational Pvt. Ltd.