Listados y texto dentro de tabularx

Question

Estoy intentando obtener algunos listados y texto dentro de un entorno tabularx, pero no se ve muy bien:

Usé la sugerencia en¿Listado dentro de tabularx?para agregar los literales ^^J para que la cosa realmente se compile, pero el resultado se ve bastante horrible y el código no es mejor.

\begin{tabularx}{\linewidth}{l l X}\label{tab:peepholeex}
Original stack code & Optimised stack code & Notes \\ \toprule
\begin{lstlisting}^^J
SET 1^^J
ADD
\end{lstlisting} &
\begin{lstlisting}^^J
INC
\end{lstlisting} &
Take advantage of the J5's {\lstinline!INC!} instruction \\ \midrule
\begin{lstlisting}^^J
SET 1^^J
SUB
\end{lstlisting} &
\begin{lstlisting}^^J
DEC
\end{lstlisting} &
Same as above, but for subtraction \\ \midrule
\begin{lstlisting}^^J
SET 0^^J
TEQ^^J
DROP
\end{lstlisting} &
\begin{lstlisting}^^J
TSZ
\end{lstlisting} &
Generated with an {\lstinline!IFN, x, 0!} statement. Instead take advantage of
the {\lstinline!TSZ!} instruction of the J5 \\ \midrule
\begin{lstlisting}^^J
SET x^^J
STORE^^J
SET x^^J
LOAD
\end{lstlisting} &
\begin{lstlisting}^^J
DUP^^J
SET x^^J
STORE
\end{lstlisting} &
A store followed by an immediate load of the same value. Instead, duplicate the
stored value and just store (since it might be used elsewhere) \\
\end{tabularx}

¿Cuál es la mejor manera de hacer esto para que no haya saltos de línea extraños en la tercera columna? (¡Y la mejor manera de hacer esto de manera más general!)

Answer 1

Propongo dos soluciones (ciertamente no son las mejores, pero podría ser una forma de llamar la atención sobre la cuestión).

Primero: si puede prescindir del listingspaquete, puede definir uno \newcolumntypeque utilice \ttfamily.

\documentclass{book}
\usepackage{capt-of}
\usepackage{booktabs}
\usepackage{tabularx}
\newcolumntype{L}{>{\ttfamily\arraybackslash}p{6em}}
\begin{document}
\captionof{table}{Some caption}\label{tab:peepholeex}\vspace{1ex}
\noindent
\begin{tabularx}{\linewidth}{LLX}
    \normalfont\raggedright Original stack code & \normalfont\raggedright Optimised stack code & Notes \\ 
    \toprule
    SET 1\newline
    ADD
    &
    INC
    &
    Take advantage of the J5's \texttt{INC} instruction \\ \midrule
    SET 1\newline
    SUB
    &
    DEC
    &
    Same as above, but for subtraction \\ \midrule
    SET 0\newline
    TEQ\newline
    DROP
    &
    TSZ
    &
    Generated with an \texttt{IFN, x, 0} statement. Instead take advantage of
    the \texttt{TSZ} instruction of the J5 \\ \midrule
    SET x\newline
    STORE\newline
    SET x\newline
    LOAD
    &
    DUP\newline
    SET\newline
    STORE
    &
    A store followed by an immediate load of the same value. Instead, duplicate the
    stored value and just store (since it might be used elsewhere) \\
\end{tabularx}
\end{document} 

Segundo: si no puedes prescindir del listingspaquete, aquí tienes una solución (muy) sucia con \raisebox.

\documentclass{book}
\usepackage{ragged2e}
\usepackage{capt-of}
\usepackage{booktabs}
\usepackage{tabularx}
\usepackage{listings}
\newlength{\myup}

\begin{document}
\settoheight{\myup}{\vbox{\texttt{X}}}
\addtolength{\myup}{1.5pt}
\captionof{table}{Some caption}\label{tab:peepholeex}\vspace{1ex}
\noindent
\begin{tabularx}{\linewidth}{llX}
    Original stack code & Optimised stack code & Notes \\[.5ex] \toprule
    \begin{lstlisting}^^J
    SET 1^^J
    ADD
    \end{lstlisting} & 
    \raisebox{\myup}{%  
    \begin{lstlisting}^^J
    INC
    \end{lstlisting}
    }\rule[0pt]{0pt}{2.5\myup} & 
    \raisebox{\myup}{%
    \parbox[t][2\myup][t]{13em}{\justifying\noindent
    Take advantage of the J5's {\lstinline!INC!} instruction
    }} \\[2ex] 
    \midrule
    \begin{lstlisting}^^J
    SET 1^^J
    SUB
    \end{lstlisting} &
    \raisebox{\myup}{%  
    \begin{lstlisting}^^J
    DEC
    \end{lstlisting}
    }\rule[0pt]{0pt}{2.5\myup} &
    \raisebox{\myup}{%
    \parbox[t][2\myup][t]{13em}{\justifying\noindent
    Same as above, but for subtraction
    }} \\[2ex] \midrule
    \begin{lstlisting}^^J
    SET 0^^J
    TEQ^^J
    DROP
    \end{lstlisting} &
    \raisebox{2\myup}{% 
    \begin{lstlisting}^^J
    TSZ
    \end{lstlisting}
    } &
    \raisebox{1.8\myup}{%
    \parbox[t][4\myup][t]{13em}{\justifying\noindent
    Generated with an {\lstinline!IFN, x, 0!} statement. Instead take advantage of
    the {\lstinline!TSZ!} instruction of the J5 
    }}\\[5.5ex] 
    \midrule
    \begin{lstlisting}^^J
    SET x^^J
    STORE^^J
    SET x^^J
    LOAD
    \end{lstlisting} &
    \raisebox{.8\myup}{%    
    \begin{lstlisting}^^J
    DUP^^J
    SET x^^J
    STORE
    \end{lstlisting}
    }\rule[0pt]{0pt}{4.2\myup} &
    \raisebox{2.5\myup}{%
    \parbox[t][4\myup][t]{13em}{\justifying\noindent
    A store followed by an immediate load of the same value. Instead, duplicate the
    stored value and just store (since it might be used elsewhere)
    }} \\
\end{tabularx}
\end{document}