Replaced F94 with F12

significant part.

The implementation-defined range of double-cell signed integers

shall include \{-2147483647 {\ldots} \newline +2147483647\}.

shall include \{-2147483647 {\ldots} \linebreak +2147483647\}.

The implementation-defined range of double-cell non-negative

integers shall include \{0 {\ldots} 2147483647\}.

\subsection{Obsolescent Environmental Queries} % 3.2.7

\label{usage:obsolete}

\hfill\textsf{x:wordset-query}

\proposal{X:wordset-query}

This standard designates the practice of using \word{ENVIRONMENTq}

to inquire whether a given word set is present as obsolescent.  If

such a query, as listed in table \ref{table:obsolete}, returns

\param{true}, the word set is present in the form defined by the

\replace{F94}{Forth-94}{Forth 94} Standard.

\param{true}, the word set is present in the form defined by

\remove{ed12}{the} Forth 94 \remove{ed12}{Standard}.

As these queries will be withdrawn from future revisions of the

Standard their use in new programs is discouraged.

\place{ed11}{See \xref{rat:obsolete}}.

See \xref{rat:obsolete}.

\newcommand{\query}[2]{% <wordset><wordset name>

	\texttt{#1}		 & \emph{flag} & no & \sout{Forth-94}\uline{Forth 94} #2 word set present. \\

	\texttt{#1-EXT} & \emph{flag} & no & \sout{Forth-94}\uline{Forth 94} #2 extensions word set present. \\

	\texttt{#1}		& \emph{flag} & no & Forth 94 #2 word set present. \\

	\texttt{#1-EXT}	& \emph{flag} & no & Forth 94 #2 extensions word set present. \\

}

\begin{table}[ht]

  \begin{center}

	\caption{Obsolescent Environmental Query Strings}

	\label{table:obsolete}

\cbstart

	\begin{tabular}{p{10em}r@{~~}c@{~~}p{0.55\textwidth}}

		\hline\hline

		\multicolumn{2}{l}{String \hfill Value data type} & Constant? & Meaning \\

		\hline

		\texttt{CORE}		& \emph{flag} & no

				& true if complete core word set of \sout{Forth-94}\uline{Forth 94} is present \\

				& true if complete core word set of Forth 94 is present \\

		& &	& (i.e., not a subset as defined in \ref{label:system}) \\

		\texttt{CORE-EXT}	& \emph{flag} & no

				& true if the core extensions word set of \sout{Forth-94}\uline{Forth 94} is present \\

				& true if the core extensions word set of Forth 94 is present \\

		\query{BLOCK}{block}

		\query{DOUBLE}{double number}

		\query{EXCEPTION}{exception}

		\query{STRING}{string}

		\hline\hline

	\end{tabular}

\cbend

  \end{center}

\end{table}

\ifrelease\else

\subsection{Extension queries} % 3.2.8

\label{usage:extensions}

~ \hfill \textsf{\small X:extension-query}

\proposal{X:extension-query}

As part of the Forth 200\emph{x} standards procedure, additions to the

Standard are labeled as \emph{extensions}. These extensions have

	\end{tabular}

  \end{center}

\end{table}

\fi

\section{The Forth dictionary} % 3.3 ================================

\label{usage:dict}

\subsubsection{Address alignment} % 3.3.3.1

\label{usage:aaddr}

Most addresses \remove{F94}{used in ANS Forth} are aligned addresses (indicated

by \emph{a-addr}) or character-aligned (indicated by \emph{c-addr}).

\replace{ed12}{Most addresses are aligned addresses (indicated

by \emph{a-addr}) or character-aligned (indicated by \emph{c-addr})}{

Most addresses are cell aligned (indicated by \emph{a-addr}) or character

aligned (\emph{c-addr})}.

\word{ALIGNED}, \word{CHAR+}, and arithmetic operations can alter

the alignment state of an address on the stack. \word{CHAR+} applied

to an aligned address returns a character-aligned address that can

\label{usage:var}

The region allocated for a variable may be non-contiguous with

regions subsequently allocated with \word{,} (comma) or

regions subsequently allocated with \linebreak \word{,} (comma) or

\word{ALLOT}. For example, in:

\begin{quote}

	\word{VARIABLE} X 1 \word{CELLS} \word{ALLOT}

memory. Consequently, use of one of these words can corrupt a region

returned earlier by a different word. The other words that construct

pictured numeric output strings (\word{num-start}, \word{num}, \word{numS},

\word{HOLD}, \word{HOLDS}, \remove{ed11}{and} \word[xchar]{XHOLD})  may also modify

\word{HOLD}, \word{HOLDS}, \word[xchar]{XHOLD})  may also modify

the contents of these regions. Words that display numbers may be

implemented using pictured numeric output words. Consequently, \word{d}

(dot), \word{.R}, \word[tools]{.S}, \word[tools]{q}, \word[double]{Dd},

\word[double]{D.R}, \word{Ud}, \remove{ed11}{and} \word{U.R} could also corrupt the

\word[double]{D.R}, \word{Ud}, \word{U.R} could also corrupt the

regions.

The size of the scratch area whose address is returned by \word{PAD}

\subsubsection{Text interpreter input number conversion} % 3.4.1.3

\label{usage:numbers}

When converting input numbers, the text interpreter shall recognize

integer numbers in the form \linebreak \arg{BASEnum}; if the

\textsf{X:number-prefixes}

extension is present, the text interpreter shall recognize integer

When converting input numbers,

\remove{ed12}{the text interpreter shall recognize integer numbers in the

form \arg{BASEnum}; if the \textsf{X:number-prefixes} extension is present,}

the text interpreter shall recognize integer

numbers in the form \arg{anynum}.

\begin{center}

	\end{tabular}

\end{center}

\place{x:enhanced-locals}{See \xref{notations}.}

See \xref{notations}.

\subsection{Finding definition names} % 3.4.2

\label{usage:find}