Fixed a bug

[cc65] / src / cc65 / coptstore.h

diff --git a/src/cc65/coptstore.h b/src/cc65/coptstore.h
index 29a97de7d00abc2fa927afe993ab71e2bcfafb80..85042279f56c3b5199ca99182e0179dea81de947 100644 (file)
--- a/src/cc65/coptstore.h
+++ b/src/cc65/coptstore.h
@@ -6,9 +6,9 @@
 /*                                                                           */
 /*                                                                           */
 /*                                                                           */
-/* (C) 2002      Ullrich von Bassewitz                                       */
-/*               Wacholderweg 14                                             */
-/*               D-70597 Stuttgart                                           */
+/* (C) 2002-2003 Ullrich von Bassewitz                                       */
+/*               Römerstrasse 52                                             */
+/*               D-70794 Filderstadt                                         */
 /* EMail:        uz@cc65.org                                                 */
 /*                                                                           */
 /*                                                                           */
@@ -44,23 +44,47 @@
 
 
 /*****************************************************************************/
-/*                                  Code                                    */
+/*                                  Code                                    */
 /*****************************************************************************/
 
 
 
 unsigned OptStore1 (CodeSeg* S);
+/* Search for the sequence
+ *
+ *      ldy     #n
+ *      jsr     staxysp
+ *      ldy     #n+1
+ *      jsr     ldaxysp
+ *
+ * and remove the useless load, provided that the next insn doesn't use flags
+ * from the load.
+ */
+
+unsigned OptStore2 (CodeSeg* S);
 /* Search for a call to staxysp. If the ax register is not used later, and
  * the value is constant, just use the A register and store directly into the
  * stack.
  */
 
-unsigned OptStore2 (CodeSeg* S);               
+unsigned OptStore3 (CodeSeg* S);
 /* Search for a call to steaxysp. If the eax register is not used later, and
  * the value is constant, just use the A register and store directly into the
  * stack.
  */
 
+unsigned OptStore4 (CodeSeg* S);
+/* Search for the sequence
+ *
+ *      sta     xx
+ *      stx     yy
+ *      lda     xx
+ *      ldx     yy
+ *
+ * and remove the useless load, provided that the next insn doesn't use flags
+ * from the load.
+ */
+
 
 
 /* End of coptstore.h */