From aad6cd2a142acc6959baeef75af366ef9bfcead4 Mon Sep 17 00:00:00 2001
From: uz <uz@b7a2c559-68d2-44c3-8de9-860c34a00d81>
Date: Tue, 6 Nov 2012 20:36:45 +0000
Subject: [PATCH] Allow to map characters to code zero with .CHARMAP.

git-svn-id: svn://svn.cc65.org/cc65/trunk@5921 b7a2c559-68d2-44c3-8de9-860c34a00d81
---
 doc/ca65.sgml     | 8 ++++----
 src/ca65/pseudo.c | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/doc/ca65.sgml b/doc/ca65.sgml
index af762b90a..22704a30d 100644
--- a/doc/ca65.sgml
+++ b/doc/ca65.sgml
@@ -2130,10 +2130,10 @@ Here's a list of all control commands and a description, what they do:
 <sect1><tt>.CHARMAP</tt><label id=".CHARMAP"><p>
 
   Apply a custom mapping for characters. The command is followed by two
-  numbers in the range 1..255. The first one is the index of the source
-  character, the second one is the mapping. The mapping applies to all
-  character and string constants when they generate output, and overrides
-  a mapping table specified with the <tt><ref id="option-t" name="-t"></tt>
+  numbers. The first one is the index of the source character (range 1..255),
+  the second one is the mapping (range 0..255). The mapping applies to all
+  character and string constants when they generate output, and overrides a
+  mapping table specified with the <tt><ref id="option-t" name="-t"></tt>
   command line switch.
 
   Example:
diff --git a/src/ca65/pseudo.c b/src/ca65/pseudo.c
index 4bafb8626..58e2621b2 100644
--- a/src/ca65/pseudo.c
+++ b/src/ca65/pseudo.c
@@ -637,7 +637,7 @@ static void DoCharMap (void)
 
     /* Read the character code */
     Code = ConstExpression ();
-    if (Code <= 0 || Code > 255) {
+    if (Code < 0 || Code > 255) {
     	/* Value out of range */
        	ErrorSkip ("Range error");
     	return;
-- 
2.39.5