\begin{tikzpicture}[scale=2.54] % dpic version 2020.03.01 option -g for TikZ and PGF 1.01 \ifx\dpiclw\undefined\newdimen\dpiclw\fi \global\def\dpicdraw{\draw[line width=\dpiclw]} \global\def\dpicstop{;} \dpiclw=0.8bp \dpiclw=0.8bp \dpicdraw (0.2,0.45) --(0,0.45) --(0,0.75) --(0.2,0.75)\dpicstop \dpicdraw (0.2,0.75) ..controls (0.4,0.75) and (0.4,0.45) ..(0.2,0.45)\dpicstop \draw (0.6,0.6) node[right=-2bp]{{\tt AND\_gate}}; \dpicdraw (0.122222,0.348911) --(0,0.348911)\dpicstop \dpicdraw (0.004513,0.351089) ..controls (0.050565,0.25571) and (0.050948,0.144606) ..(0.005556,0.048911)\dpicstop \dpicdraw (0,0.048911) --(0.122222,0.048911)\dpicstop \dpicdraw (0.122222,0.348911) ..controls (0.222661,0.348911) and (0.313857,0.290284) ..(0.355556,0.198911)\dpicstop \dpicdraw (0.122222,0.048911) ..controls (0.222661,0.048911) and (0.313857,0.107537) ..(0.355556,0.198911)\dpicstop \draw (0.6,0.2) node[right=-2bp]{{\tt OR\_gate}}; \dpicdraw (0.175,-0.2) --(0,-0.3) --(0,-0.1) --(0.175,-0.2)\dpicstop \draw (0.6,-0.2) node[right=-2bp]{{\tt BUFFER\_gate}}; 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