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The standard way for debuggers to plant interactive breakpoints in a program in RAM (whatever the processor instruction set) is to save the break pointed 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 in the code. If the interactive dialogue with the debugger during the breakpoint handling 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 break pointed. 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 correctly simulating all addressing modes, such as PC relative. It is much easier simply to execute the break pointed 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 break pointed instruction cannot be statically predicted, for instance if the break pointed instruction is a conditional jump, but a common solution is simply to ban planting breakpoints on 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.
Introduction Currently, Omega has 178 stores UK wide. Most cities and large towns within the UK are catered for by Omega. Omega began in 1960's selling various makes of telep
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(a) (i) What do you meant by a function? Are functions required when writing a C program? (ii) State one of the advantages to the use of functions. (iii) What do you meant by a
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Write a booking and pricing system for seats for performances in a theatre. Design and write a system to handle information (equipment, people, events etc.) for a club. Given
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write a program to draw a cow. Now, draw a cow standing amongst the grass, with (say) 500 blades of grass. Each blade of grass should be a separate random green line. Do all your d
Overview Goals: The goals for this assignment are Design and implement instantiable classes. Use arrays of objects. Read from and write to files. Implement basic
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