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.TH "VXREFBAS" 1 "2024-06-13" "0.2.1" "Urchlay's Atari 8-bit Tools"
.SH NAME
vxrefbas \- Variable cross-reference for tokenized Atari 8-bit BASIC files
.SH SYNOPSIS
.sp
vxrefbas \fBinput\-file\fP
.SH DESCRIPTION
.sp
\fBvxrefbas\fP reads an Atari 8\-bit BASIC tokenized program and prints
a list of variables, each with a list of line numbers where the
variable is referenced.
.sp
Variables that aren\(aqt used by the program are listed as \fI(no references)\fP\&.
.sp
Each line number may be followed by one or more markers, which show the
type of variable access.
.INDENT 0.0
.TP
.B \fB=\fP
The variable is assigned on this line, with \fILET\fP or "implied LET" (e.g.
\fIA=1\fP).
.TP
.B \fB{\fP
The variable is used as the control variable of a \fIFOR\fP loop on this line.
.TP
.B \fB}\fP
The variable is used in a \fINEXT\fP on this line.
.UNINDENT
.SH OPTIONS
.SS General Options
.INDENT 0.0
.TP
.B \fB\-\-help\fP
Print usage message and exit.
.TP
.B \fB\-\-version\fP
Print version number and exit.
.TP
.B \fB\-v\fP
Verbose operation. When displaying a number in verbose mode, it will
be prefixed with \fI$\fP if it\(aqs in hex, or no prefix for decimal.
.UNINDENT
.SH EXIT STATUS
.sp
0 for success, 1 for failure.
.SH COPYRIGHT
.sp
WTFPL. See \fI\%http://www.wtfpl.net/txt/copying/\fP for details.
.SH AUTHOR
.INDENT 0.0
.IP B. 3
Watson <\fI\%urchlay@slackware.uk\fP>; Urchlay on irc.libera.chat \fI##atari\fP\&.
.UNINDENT
.SH SEE ALSO
.sp
\fBa8eol\fP(1),
\fBa8utf8\fP(1),
\fBatr2xfd\fP(1),
\fBatrsize\fP(1),
\fBaxe\fP(1),
\fBblob2c\fP(1),
\fBblob2xex\fP(1),
\fBcart2xex\fP(1),
\fBdasm2atasm\fP(1),
\fBdumpbas\fP(1),
\fBf2toxex\fP(1),
\fBfenders\fP(1),
\fBprotbas\fP(1),
\fBrenumbas\fP(1),
\fBrom2cart\fP(1),
\fBunmac65\fP(1),
\fBunprotbas\fP(1),
\fBvxrefbas\fP(1),
\fBxexamine\fP(1),
\fBxexcat\fP(1),
\fBxexsplit\fP(1),
\fBxfd2atr\fP(1),
\fBxex\fP(5),
\fBatascii\fP(7).
.sp
Any good Atari 8\-bit book: \fIDe Re Atari\fP, \fIThe Atari BASIC Reference
Manual\fP, the \fIOS Users\(aq Guide\fP, \fIMapping the Atari\fP, etc.
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