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..
Long term goal of artificial intelligence, Long term goal of artificial int...
Long term goal of artificial intelligence: This is not to be complex with the applications of AI programs to other sciences, discussed later. Rather, it is just pointing out th
Computer Literacy Assignment Task, Assignment Task: You are required to dev...
Assignment Task: You are required to develop working solutions in Excel that will manage the annual budget, current month’s inventory, and a list of the current month’s transaction
CAI, What is CAI? Explain its pitfalls
What is CAI? Explain its pitfalls
Software engineering, 158.254 Software Development Lifecycle Management Ass...
158.254 Software Development Lifecycle Management Assignment 1 This assignment focuses on requirements engineering. The context to this assignment is the development of a system
Oop, evolution of oop
evolution of oop
Human computer Interface, discuss waterfall
Collaboration, Collaboration: Collaboration is defined as an act or pr...
Collaboration: Collaboration is defined as an act or process of working together on a project or some intellectual activity. But what is the importance of collaboration? The w
Output devices, Output Devices: Each output unit of computer system tr...
Output Devices: Each output unit of computer system transmits information from the CPU and converts the electrical pulses to an appropriate output form. A printer, for example
Explain the concept of linking and relocation, Question 1 Write an assembl...
Question 1 Write an assembly language program to find the highest among two numbers Question2 Draw and explain the internal architecture of 8085 briefly Question3 Explai
What is a font, Question 1 What is a desktop? Explain the Windows XP deskt...
Question 1 What is a desktop? Explain the Windows XP desktop? Question 2 How does a flash drive work? Question 3 Write the procedure for creating Macro Question 4 E
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.