From 7663d7e3f35daa07900557faa5a1e83fbbcdadb0 Mon Sep 17 00:00:00 2001
From: "B. Watson" <urchlay@slackware.uk>
Date: Wed, 26 Feb 2025 04:27:04 -0500
Subject: listamsb: sanity check end-of-line addresses.

---
 listamsb.1 | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

(limited to 'listamsb.1')

diff --git a/listamsb.1 b/listamsb.1
index a21fb5a..a80a17d 100644
--- a/listamsb.1
+++ b/listamsb.1
@@ -27,7 +27,7 @@ level margin: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .\" new: \\n[rst2man-indent\\n[rst2man-indent-level]]
 .in \\n[rst2man-indent\\n[rst2man-indent-level]]u
 ..
-.TH "LISTAMSB" 1 "2025-02-25" "0.2.1" "Urchlay's Atari 8-bit Tools"
+.TH "LISTAMSB" 1 "2025-02-26" "0.2.1" "Urchlay's Atari 8-bit Tools"
 .SH NAME
 listamsb \- List the source of a tokenized Atari Microsoft BASIC program
 .SH SYNOPSIS
@@ -116,6 +116,22 @@ unexpected EOF, file truncated?
 A tokenized AMSB file always ends with three null bytes (\fI$00\fP).
 This file doesn\(aqt. Probably the rest of the file is missing.
 .IP \(bu 2
+line \fIN\fP: EOL address \fIA\fP too (low|high)
+.sp
+Each line begins with the address of the next line. If the address
+is below \fI$0700\fP, it\(aqs below the minimum value of \fIMEMLO\fP, which
+is impossible. If it\(aqs above \fI$bc1f\fP, it would be in the display
+list, screen memory, or OS ROM (also impossible). File is
+corrupt, or not an AMSB file.
+.IP \(bu 2
+line \fIN\fP: EOL address \fIA\fP <= previous \fIB\fP
+.sp
+Corrupt file, or not an AMSB file.
+.IP \(bu 2
+line \fIN\fP EOL address doesn\(aqt match actual line length \fIL\fP
+.sp
+Same as above: corrupt, or not AMSB.
+.IP \(bu 2
 line number out of order
 .sp
 Probably means the file is corrupted, or isn\(aqt really an AMSB file.
-- 
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