top/memorylayout.tex

   1 \documentclass[tikz]{standalone}
   2 %\usepackage{listings}
   3 %\lstset{%
   4 %       basewidth=0.5em,
   5 %       basicstyle=\tt\scriptsize,
   6 %       breakatwhitespace=false,
   7 %       breaklines=true,
   8 %       captionpos=b,
   9 %       columns=[c]fixed,
  10 %       commentstyle=\sl,
  11 %       escapeinside={[+}{+]},  % chktex 9
  12 %       frame=,
  13 %       keepspaces=true,
  14 %       keywordstyle=\bf,
  15 %       showspaces=false,
  16 %       showstringspaces=false,
  17 %       showtabs=false,
  18 %       stringstyle=\it,
  19 %       tabsize=4,
  20 %       numberstyle=\tiny,
  21 %       language=C,
  22 %}
  23 \usetikzlibrary{arrows.meta,shapes.symbols,matrix,positioning}
  24 \begin{document}
  25 \begin{tikzpicture}[%
  26         memory/.style={
  27                 matrix of nodes,
  28                 every node/.append style={
  29                         font=\footnotesize\tt, outer xsep=.4ex,
  30                 anchor=base},
  31                 column 2/.append style={
  32                         every node/.append style=
  33                         {draw,fill=white,
  34                                 minimum width=#1,
  35                         minimum height=1.3em}
  36                 },
  37                 row sep=-.4pt,
  38         },
  39         memory/.default=4em,
  40         descr/.style={draw=none,fill=none},
  41         break above/.style={shape=tape, tape bend top=in and out, tape bend bottom=none},
  42         break below/.style={shape=tape, tape bend top=none, tape bend bottom=in and out},
  43         !!/.style={fill=green!20}, % chktex 26
  44         pointer/.style = {font=\tt, anchor=base, inner sep=2pt},
  45         ]
  46         \matrix (main) [memory] {
  47                 & |[descr]| {\rm high addresses} \\
  48                 & || heap\\
  49                 & || $\downarrow$\\
  50                 & || \ldots\\
  51                 & || $\uparrow$\\
  52                 & || stack\\
  53                 & || $\uparrow$ \\
  54                 & || tasks \\
  55                 & |[descr]| {\rm low addresses}\\
  56         };
  57         \matrix (heap) [right=of main,memory,yshift=2em] {
  58                 & || tree\textsubscript{0}\\
  59                 & || tree\textsubscript{1}\\
  60                 & || tree\textsubscript{\ldots}\\
  61                 & || tree\textsubscript{n}\\
  62         };
  63         \matrix (global) [left=of main,memory,yshift=2em] {
  64                 & || task\textsubscript{n}\\
  65                 & || task\textsubscript{\ldots}\\
  66                 & || task\textsubscript{1}\\
  67                 & || task\textsubscript{0}\\
  68         };
  69         \draw[dashed] (main-2-2.north east) -- (heap-1-2.north west);
  70         \draw[dashed] (main-3-2.south east) -- (heap-4-2.south west);
  71
  72         \draw[dashed] (main-7-2.north west) -- (global-1-2.north east);
  73         \draw[dashed] (main-8-2.south west) -- (global-4-2.south east);
  74
  75 %       \node (tree) [right=of heap] {
  76 %\begin{lstlisting}
  77 %struct TaskTree {
  78 %       enum BCTaskType_c task_type;
  79 %       bool trash;
  80 %       uint16_t refresh_min;
  81 %       uint16_t refresh_max;
  82 %       struct TaskTree *parent;
  83 %       union {
  84 %               ...
  85 %               uint16_t readd;
  86 %               ...
  87 %               struct {
  88 %                       struct TaskTree *lhs;
  89 %                       struct TaskTree *rhs;
  90 %               } tand;
  91 %               ...
  92 %       } data;\end{lstlisting}
  93 %       };
  94 %
  95 %       \draw[dashed] (tree.north west) -- (heap-1-2.north east);
  96 %       \draw[dashed] (tree.south west) -- (heap-1-2.south east);
  97 \end{tikzpicture}
  98 \end{document}