From: uz <uz@b7a2c559-68d2-44c3-8de9-860c34a00d81>
Date: Mon, 2 Nov 2009 22:31:32 +0000 (+0000)
Subject: Do not use a separate byte for an END opcode, instead place the bit into the
X-Git-Tag: V2.13.1~96
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=6078953baaa24a3b53167d4ae0af5e48439a4bf5;p=cc65

Do not use a separate byte for an END opcode, instead place the bit into the
previous opcode. This saves one byte per character with the exception of
characters without a vector representation, where we loose one byte, because
we need to add a dummy vector just to apply our END bit.


git-svn-id: svn://svn.cc65.org/cc65/trunk@4433 b7a2c559-68d2-44c3-8de9-860c34a00d81
---

diff --git a/src/chrcvt/main.c b/src/chrcvt/main.c
index 4629ecfa1..8b402655b 100644
--- a/src/chrcvt/main.c
+++ b/src/chrcvt/main.c
@@ -238,7 +238,13 @@ static void ConvertChar (StrBuf* Data, const unsigned char* Buf)
 
             case 0x0000:
                 /* End */
-                SB_AppendChar (Data, 0x80);
+                if (SB_IsEmpty (Data)) {
+                    /* No ops. We need to add an empty one */
+                    SB_AppendChar (Data, 0x00);
+                    SB_AppendChar (Data, 0x00);
+                }
+                /* Add an end marker to the last op in the buffer */
+                SB_GetBuf (Data)[SB_GetLen (Data) - 2] |= 0x80;
                 return;
 
             case 0x0080: