If u want us to solve the GATE paper, please attach the paper, we will post the solution.
regards. On Tue, Jun 21, 2011 at 11:21 PM, Akshata Sharma <akshatasharm...@gmail.com>wrote: > The atomic fetch-and-set x, y instruction unconditionally sets the memory > location x to 1 and fetches the old value of x n y without allowing any > intervening access to the memory location x. consider the following > implementation of P and V functions on a binary semaphore S. > > void P (binary_semaphore *s) > unsigned y; > unsigned * = &(s—>value); > do > fetch—and—set x, y; > while (y) > > void V (binary_semaphore *s) > S—>value = 0; > Which one of the following is true? > (A) The implementation may not work if context switching is disabled in P > (B) Instead of using fetch-and —set, a pair of normal load/store can be > used > (C) The implementation of V is wrong > (D) The code does not implement a binary semaphore > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to algogeeks@googlegroups.com. > To unsubscribe from this group, send email to > algogeeks+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to algogeeks@googlegroups.com. To unsubscribe from this group, send email to algogeeks+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
