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16 lines
843 B
TeX
16 lines
843 B
TeX
\newpage
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\subsection{Control Flow}
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Control flow structures from \verb|C| like \verb|if/else| or \verb|for| are compiled into assembly mainly using jumps and conditional \verb|move|.
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By the nature of Assembly and thanks to compilers optimizing aggressively, there is no \textit{single} definitive translation of the \verb|C| control structures: The compiler may translate it very differently depending on the context of the program.
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\subsubsection{Conditional statements}
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A function using an \verb|if/else| construct to choose the maximum of $2$ numbers might compile like this:
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\inputcodewithfilename{gas}{code-examples/01_asm/}{02_max.s}
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A function computing the absolute difference $|x-y|$ using an \verb|if/else| construct, might use a conditional \verb|move| instead:
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\inputcodewithfilename{gas}{code-examples/01_asm/}{03_absdiff.s}
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