diff --git a/vstore.h b/vstore.h
index d6c6d328..3100651a 100644
--- a/vstore.h
+++ b/vstore.h
@@ -664,6 +664,7 @@ int     i;                              /* Loop counter              */
 BYTE    obyte;                          /* Operand byte              */
 #ifdef OPTION_FAST_MOVECHAR
 BYTE    slow = 0;
+BYTE	*a1, *a2;
 #endif
 
     /* Translate addresses of leftmost operand bytes */
@@ -717,8 +718,14 @@ BYTE    slow = 0;
 #ifdef OPTION_FAST_MOVECHAR
     if (!slow)
     {
-        for (i = 0; i < len + 1; i++)
+	/* Gabor Hoffer (performance option) */
+        a1 = sysblk.mainstor+abs1;
+	a2 = sysblk.mainstor+abs2;
+	for (i = 0; i < len + 1; i++) a1 [i] = a2 [i];
+/*	
+	for (i = 0; i < len + 1; i++)
             sysblk.mainstor[abs1++] = sysblk.mainstor[abs2++];
+*/
         return;
     }
 #endif