SLEA-chrono/timing.sty

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2017-12-15 13:33:14 +00:00
\newcounter{wavenum}
\setlength{\unitlength}{1cm}
% advance clock one cycle, not to be called directly
\newcommand*{\clki}{
\draw (t_cur) -- ++(0,.3) -- ++(.5,0) -- ++(0,-.6) -- ++(.5,0) -- ++(0,.3)
node[time] (t_cur) {};
}
\newcommand*{\bitvector}[3]{
\draw[fill=#3] (t_cur) -- ++( .1, .3) -- ++(#2-.2,0) -- ++(.1, -.3)
-- ++(-.1,-.3) -- ++(.2-#2,0) -- cycle;
\path (t_cur) -- node[anchor=mid] {#1} ++(#2,0) node[time] (t_cur) {};
}
% \known{val}{length}
\newcommand*{\known}[2]{
\bitvector{#1}{#2}{white}
}
% \unknown{length}
\newcommand*{\unknown}[2][XXX]{
\bitvector{#1}{#2}{black!20}
}
% \bit{1 or 0}{length}
\newcommand*{\bit}[2]{
\draw (t_cur) -- ++(0,.6*#1-.3) -- ++(#2,0) -- ++(0,.3-.6*#1)
node[time] (t_cur) {};
}
% \unknownbit{length}
\newcommand*{\unknownbit}[1]{
\draw[ultra thick,black!50] (t_cur) -- ++(#1,0) node[time] (t_cur) {};
}
% \nextwave{name}
\newcommand{\nextwave}[1]{
\path (0,\value{wavenum}) node[left] {#1} node[time] (t_cur) {};
\addtocounter{wavenum}{-1}
}
% \clk{name}{period}
\newcommand{\clk}[2]{
\nextwave{#1}
\FPeval{\res}{(\wavewidth+1)/#2}
\FPeval{\reshalf}{#2/2}
\foreach \t in {1,2,...,\res}{
\bit{\reshalf}{1}
\bit{\reshalf}{0}
}
}
% \begin{wave}[clkname]{num_waves}{clock_cycles}
\newenvironment{wave}[3][H]{
\begin{tikzpicture}[draw=black, yscale=.7,xscale=1]
\tikzstyle{time}=[coordinate]
\setlength{\unitlength}{1cm}
\def\wavewidth{#3}
\setcounter{wavenum}{0}
\nextwave{#1}
\foreach \t in {0,1,...,\wavewidth}{
\draw[dotted] (t_cur) +(0,.5) -- ++(0,.4-#2);
\clki
}
}{\end{tikzpicture}}
2017-12-27 15:53:06 +00:00
% \begin{nowave}{num_waves}{clock_cycles}
\newenvironment{nowave}[1]{
\begin{tikzpicture}[draw=black, yscale=.7,xscale=1]
\tikzstyle{time}=[coordinate]
\setlength{\unitlength}{1cm}
\def\wavewidth{#1}
\setcounter{wavenum}{0}
}{\end{tikzpicture}}