我正在尝试起草一份大量使用该bytefield软件包的文档，但遇到了这样的情况：对于必须为 64 位宽的字段，似乎没有好的解决方案（甚至文档也没有显示此类示例！）。事不宜迟，下面是结果：
如您所见，64 位值的宽度超出了页面范围。我尝试使用可选的bitwidth文档中所述的可选参数来限制这一点（例如以下这个答案的问题提供一个论点0.8\textwidth，从那里进行调整，但这样做会产生“算术溢出”错误。有人知道如何限制整个领域本身，或者至少强制bytefield产生一个不能比页面本身更宽的字段？
以下是最小工作示例的代码：
\documentclass[10pt]{extreport}
\usepackage[margin=2.0cm,a4paper]{geometry}
\usepackage[utf8]{inputenc}
\usepackage{bytefield}
\begin{document}
\noindent
An \texttt{unsigned word} is defined as a 16-bit or two-octet quantity, having the range \texttt{[0, 65535]}: \\
\begin{center}
\begin{bytefield}[endianness=big]{16}
\bitheader{15, 7, 0} \\
\bitbox{16}{\texttt{unsigned word}} \\
\end{bytefield}
\end{center}
An \texttt{unsigned word} is addressable as an 2-size array of bytes, where \texttt{byte[0]} corresponds to the most-significant byte in the word (the \textit{high byte}) and \texttt{byte[1]} corresponds to the least-significant byte in the word (the \textit{low byte}). \\
\vspace{5pt}
\hrule
\vspace{15pt}
\noindent
An \texttt{unsigned doubleword} is defined as a 32-bit or four-octet quantity, having the range \texttt{[0, 4294967295]}: \\
\begin{center}
\begin{bytefield}[endianness=big]{32}
\bitheader{31, 23, 15, 7, 0} \\
\bitbox{32}{\texttt{unsigned doubleword}} \\
\end{bytefield}
\end{center}
An \texttt{unsigned doubleword} is addressable as an 4-size array of bytes, where \texttt{byte[0]} corresponds to the most-significant byte in the doubleword (the \textit{high byte}) and \texttt{byte[3]} corresponds to the least-significant byte in the doubleword (the \textit{low byte}). \\
\vspace{5pt}
\hrule
\vspace{15pt}
\noindent
An \texttt{unsigned quadword} is defined as a 64-bit or eight-octet quantity, having the range \texttt{[0, 18446744073709551615]}: \\
\begin{center}
\begin{bytefield}[endianness=big]{64}
\bitheader{63, 55, 47, 39, 31, 23, 15, 7, 0} \\
\bitbox{64}{\texttt{unsigned quadword}} \\
\end{bytefield}
\end{center}
An \texttt{unsigned quadword} is addressable as an 8-size array of bytes, where \texttt{byte[0]} corresponds to the most-significant byte in the quadword (the \textit{high byte}) and \texttt{byte[7]} corresponds to the least-significant byte in the quadword (the \textit{low byte}). \\
\end{document}
产生错误的非工作代码如下 - 将其包裹在花括号中并不能缓解错误：
\begin{center}
\begin{bytefield}[endianness=big, bitwidth=0.8\textwidth]{64}
\bitheader{63, 55, 47, 39, 31, 23, 15, 7, 0} \\
\bitbox{64}{\texttt{unsigned quadword}} \\
\end{bytefield}
\end{center}
另外，忠告 - 我仍然（慢慢地）掌握 TeX 的诀窍，所以我的自助技能仍然局限于“在线搜索解决方案，希望有人已经实现了它”；你可能需要帮我把潜在的答案分解一下。
如果有帮助的话，所讨论的环境是 MacTex 2015（TeXLive-2015）；代码是使用 TeXstudio 2.10.4 构建的。
答案1
您可以尝试\resizebox使用包graphicx。
\documentclass[10pt]{extreport}
\usepackage[margin=2.0cm,a4paper]{geometry}
\usepackage[utf8]{inputenc}
\usepackage{bytefield}
\usepackage{graphicx}
\begin{document}
\noindent
An \texttt{unsigned word} is defined as a 16-bit or two-octet quantity, having the range \texttt{[0, 65535]}: \\
\begin{center}
\begin{bytefield}[endianness=big]{16}
\bitheader{15, 7, 0} \\
\bitbox{16}{\texttt{unsigned word}} \\
\end{bytefield}
\end{center}
An \texttt{unsigned word} is addressable as an 2-size array of bytes, where \texttt{byte[0]} corresponds to the most-significant byte in the word (the \textit{high byte}) and \texttt{byte[1]} corresponds to the least-significant byte in the word (the \textit{low byte}). \\
\vspace{5pt}
\hrule
\vspace{15pt}
\noindent
An \texttt{unsigned doubleword} is defined as a 32-bit or four-octet quantity, having the range \texttt{[0, 4294967295]}: \\
\begin{center}
\begin{bytefield}[endianness=big]{32}
\bitheader{31, 23, 15, 7, 0} \\
\bitbox{32}{\texttt{unsigned doubleword}} \\
\end{bytefield}
\end{center}
An \texttt{unsigned doubleword} is addressable as an 4-size array of bytes, where \texttt{byte[0]} corresponds to the most-significant byte in the doubleword (the \textit{high byte}) and \texttt{byte[3]} corresponds to the least-significant byte in the doubleword (the \textit{low byte}). \\
\vspace{5pt}
\hrule
\vspace{15pt}
\noindent
An \texttt{unsigned quadword} is defined as a 64-bit or eight-octet quantity, having the range \texttt{[0, 18446744073709551615]}: \\
\begin{center}
\resizebox{1.0\linewidth}{\height}{\begin{bytefield}[endianness=big]{64}
\bitheader{63, 55, 47, 39, 31, 23, 15, 7, 0} \\
\bitbox{64}{\texttt{unsigned quadword}} \\
\end{bytefield}}
\end{center}
An \texttt{unsigned quadword} is addressable as an 8-size array of bytes, where \texttt{byte[0]} corresponds to the most-significant byte in the quadword (the \textit{high byte}) and \texttt{byte[7]} corresponds to the least-significant byte in the quadword (the \textit{low byte}). \\
\end{document}
否则，保持相同的大小：
\begin{center}
\centerline{\begin{bytefield}[endianness=big]{64}
\bitheader{63, 55, 47, 39, 31, 23, 15, 7, 0} \\
\bitbox{64}{\texttt{unsigned quadword}} \\
\end{bytefield}}
\end{center}
尽管\centerline不是最好的 LaTeX 命令。（但在这里还不错，因为它是其中唯一的东西center）。
更新：
由于字节字段框的深度有些令人惊讶，因此需要进行一些反复试验。另外，我不太清楚为什么我必须稍微减小一点宽度以避免垂直偏移。
\begin{center}
\mbox{\resizebox{.9999\linewidth}{\height}{%
\begin{bytefield}[endianness=big]{64}
\bitheader{63, 55, 47, 39, 31, 23, 15, 7, 0} \\
\bitbox{64}{} \\
\end{bytefield}}%
\kern-\linewidth
\makebox[\linewidth]{\raisebox{4ex}{\texttt{unsigned quadword}}}%
}
\end{center}
答案2
为一位保留的宽度必须乘以位数，因此像这样的数字
bitwidth=0.015\textwidth
或更少的选项更有可能起作用（选项showframe仅用于示例）：
\documentclass[10pt]{extreport}
\usepackage[margin=2.0cm,a4paper,showframe]{geometry}
\usepackage[utf8]{inputenc}
\usepackage{bytefield}
\begin{document}
An \texttt{unsigned quadword} is defined as a 64-bit or quantity, in the range
\texttt{[0, 18446744073709551615]}:
\begin{center}
\begin{bytefield}[endianness=big,bitwidth=0.015\textwidth]{64}
\bitheader{63, 55, 47, 39, 31, 23, 15, 7, 0} \\
\bitbox{64}{\texttt{unsigned quadword}} \\
\end{bytefield}
\end{center}
\end{document}
