1. what is an instruction trace?
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INSTRUCTION Trace. An instruction trace provides information for instructions executed in the area defined for the trace. ... Note the difference from the branch trace, which only records the branches actually taken. The format of a printed event record for an instruction trace is shown in Figure 1.
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The underlying principle of the von Neumann architecture is that data and instructions are stored in memory and are treated the same, meaning that instructions and data are both addressable. It operates using four simple steps: fetch, decode, execute, store, called the “Machine Cycle”.
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Answer and Explanation: Computer memory can store program instructions, program data, and cache.
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A debugger or debugging tool is a computer program used to test and debug other programs (the "target" program). ... For example, the program might have tried to use an instruction not available on the current version of the CPU or attempted to access unavailable or protected memory.
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['The first number is always a zero (0000) it indicates that the IR pattern is raw data, which means it was learned.', 'The second number is the frequency of the IR carrier in terms of the Pronto internal clock. ... ', 'The third number is the number of Burst Pairs in Burst Pair Sequence #1.']
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Select a method and hit Ctrl + Alt + H to open its Call Hierarchy which will show you where the method is being called from. This is hackish, but if you temporarily change the method signature, it will create compile errors, which are easy to find.
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To the right is a generic pipeline with four stages: fetch, decode, execute and write-back. The top gray box is the list of instructions waiting to be executed, the bottom gray box is the list of instructions that have had their execution completed, and the middle white box is the pipeline.
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['The arithmetic logic unit (ALU), which performs arithmetic and logical operations.', 'The control unit (CU), which extracts instructions from memory and decodes and executes them, calling on the ALU when necessary.']
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External devices (input or output in this instance) requesting an interrupt asynchronously set the two flags FGI and FGO. The FGI and FGO flags are cleared to zero when the respective input, INP, output, OUT, instruction is executed. ... While the computer is running a program, it does not check the interrupt flags.
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A kernel resides between hardware and OS. It communicates with hardware using system calls. Every programming language require a compiler to compile the code written in high level language and then it generate low level code, which is generally assembly language code.
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The execution of a program starts inside the kernel, in the exec("/bin/wc",...) system call takes a path to the executable file. The kernel reads the ELF header and the program header table (PHT), followed by lots of sanity checks. The kernel then loads the parts specified in the LOAD directives in the PHT into memory.
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['By using any of them, you generate traces in the Output panel and also in the log files.', 'By using a Log Message activity, you can set different levels of tracing.', 'Write Line is just a Log Message set on Trace.']
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Two-pass assemblers. ... Basically, the assembler goes through the program one line at a time, and generates machine code for that instruction. Then the assembler procedes to the next instruction. In this way, the entire machine code program is created.
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noun. a trace of something bad, offensive, or harmful. a trace of infection, contamination, or the like.
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Fetch : get the instruction from memory into the processor. Decode : internally decode what it has to do (in this case add). Store : store the result back into another register. You might also see the term retiring the instruction.
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A debug symbol is a special kind of symbol that attaches additional information to the symbol table of an object file, such as a shared library or an executable.
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['Start TraceView.', 'On the File menu, click Open Existing Log File.', 'In the Log File Name box, type the path and name of an event trace log file (. ... ', 'In the Log File Selection dialog box, you can also set select options to generate other output files from the log file. ... ', 'Click OK.']