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basicdoc: new Commands chapter

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minjaesong
2020-12-24 22:13:44 +09:00
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assets/disk0/tbas/doc/commands.tex Normal file
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This chapter describes commands accepted by the \tbas\ editor.
\section{The Editor}
When you first launch the \tbas, all you can see is some generic welcome text and two letters: \code{Ok}. Sure, you can just start type away your programs and type \code{run} to execute them, there's more things you can do with.
\subsection{LOAD}
\codeline{\textbf{LOAD} FILENAME}\par
Loads BASIC program by the file name. Default working directory for \tbas\ is \code{/home/basic}.\footnote{This is a directory within the emulated disk. On the host machine, this directory is typically \code{PWD/assets/diskN/home/basic}, where \code{PWD} is working directory for the \thismachine, \code{diskN} is a number of the disk.}
\subsection{LIST}
\codeline{\textbf{LIST} [LINE\_NUMBER]}
\codeline{\textbf{LIST} [LINE\_FROM LINE\_TO]}\par
Displays BASIC program that currently has been typed. When no arguments were given, shows entire program; when single line number was given, displays that line; when range of line numbers were given, displays those lines.
\subsection{NEW}
\codeline{\textbf{NEW}}\par
Immediately deletes the program that currently has been typed.
\subsection{RENUM}
\codeline{\textbf{SAVE} FILENAME}\par
Re-numbers program line starting from 10 and incrementing by 10s. Jump targets will be re-numbered accordingly. Nonexisting jump targets will be replaced with \code{undefined}.\footnote{This behaviour is simply Javascript's null-value leaking into the BASIC. This is nonstandard behaviour and other \tbas\ implementations may act differently.}
\subsection{RUN}
\codeline{\textbf{RUN}}\par
Executes BASIC program that currently has been typed. Execution can be arbitrarily terminated with Ctrl-C key combination (except in \code{INPUT} mode).
\subsection{SAVE}
\codeline{\textbf{SAVE} FILENAME}\par
Saves BASIC program that currently has been typed. Existing files are overwritten \emph{silently}.
\subsection{SYSTEM}
\codeline{\textbf{SYSTEM}}\par
Exits \tbas.

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assets/disk0/tbas/doc/langguide.tex
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@@ -33,7 +33,6 @@ So you can make a loop using \code{GOTO}s here and there, but they \emph{totally
What fun is the program if it won't talk with you? You can make that happen with \code{INPUT} statement. What fun is the program if it won't talk with you? You can make that happen with \code{INPUT} statement.
\begin{lstlisting} \begin{lstlisting}
10 PRINT "WHAT IS YOUR NAME"; 10 PRINT "WHAT IS YOUR NAME";
20 INPUT NAME 20 INPUT NAME

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assets/disk0/tbas/doc/tbasman.tex
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\chapter{Language Reference} \chapter{Language Reference}
\input{langref} \input{langref}
\chapter{Commands}
\input{commands}
\chapter{Statements} \chapter{Statements}
\input{statements} \input{statements}