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Write a script that generates the assembly code (Intel syntax) of a C code and save it in an output file.

Question

Write a script that generates the assembly code (Intel syntax) of a C code and save it in an output file.

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Solution

Sure, here is a step-by-step guide on how to generate the assembly code of a C code and save it in an output file using GCC compiler:

  1. Write your C code and save it in a file. Let's say the file name is program.c.

  2. Open your terminal.

  3. Navigate to the directory where your C file is located using the cd command.

  4. Now, you can generate the assembly code using the GCC compiler with the -S option. The -S option tells the compiler to stop the build process after compilation and before linking. The command would be:

gcc -S -masm=intel program.c

The -masm=intel option is used to specify that we want the output in Intel syntax.

  1. This will generate an output file with the same name as your C file but with an .s extension. In our case, the output file will be program.s.

  2. You can view the assembly code in the program.s file using any text editor or the cat command in the terminal:

cat program.s

Remember, the assembly code generated is specific to the architecture of the machine where the code is compiled.

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