From 7b96368469a34252d78fa57214aa70cb8f0c9c3d Mon Sep 17 00:00:00 2001
From: Doug Masten <doug@dougmasten.com>
Date: Fri, 26 Jun 2020 14:42:36 -0500
Subject: [PATCH] Optimize match offset code in 6809 LZSA2 depacker

---
 asm/6809/unlzsa2.s | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/asm/6809/unlzsa2.s b/asm/6809/unlzsa2.s
index f8a3a83..ff8bc09 100644
--- a/asm/6809/unlzsa2.s
+++ b/asm/6809/unlzsa2.s
@@ -123,10 +123,9 @@ lz2rep16 bmi lz2repof      ; if token's Z flag bit is set, rep match
          
          ldd ,x++          ; load high then low 8 bits of offset
 
-lz2gotof std <lz2repof+1,pcr ; store match offset
+lz2gotof std <lz2repof+2,pcr ; store match offset
+lz2repof leau $aaaa,y      ; put backreference start address in U (dst+offset)
 
-lz2repof ldd #$aaaa        ; load match offset
-         leau d,y          ; put backreference start address in U (dst+offset)
          
          puls b            ; restore token