Check for usage of Y instead of reloading it. The latter will destroy the

flags from load of A.

git-svn-id: svn://svn.cc65.org/cc65/trunk@4055 b7a2c559-68d2-44c3-8de9-860c34a00d81

diff --git a/src/cc65/coptptrload.c b/src/cc65/coptptrload.c
index 99118cefc1bf7676fecc172e179b64c882049862..b8b9f38fc94f6a73937c8ccf3be3f4cecac95056 100644 (file)
--- a/src/cc65/coptptrload.c
+++ b/src/cc65/coptptrload.c
@@ -566,7 +566,6 @@ unsigned OptPtrLoad6 (CodeSeg* S)
  *      tay
  *      ldx     #$00
  *      lda     (ptr1),y
- *      ldy     #$00
  */
 {
     unsigned Changes = 0;
@@ -594,7 +593,8 @@ unsigned OptPtrLoad6 (CodeSeg* S)
             L[5]->OPC == OP65_LDY                       &&
             CE_IsKnownImm (L[5], 0)                     &&
             CE_IsCallTo (L[6], "ldauidx")               &&
-                   !CS_RangeHasLabel (S, I+1, 6)) {
+                   !CS_RangeHasLabel (S, I+1, 6)               &&
+            !RegYUsed (S, I+7)) {
 
            CodeEntry*  X;
             const char* Arg;
@@ -628,10 +628,6 @@ unsigned OptPtrLoad6 (CodeSeg* S)
            X = NewCodeEntry (OP65_LDA, AM65_ZP_INDY, "ptr1", 0, L[6]->LI);
            CS_InsertEntry (S, X, I+13);
 
-            /* ldy #$00 (will eventually get removed later) */
-            X = NewCodeEntry (OP65_LDY, AM65_IMM, "$00", 0, L[5]->LI);
-            CS_InsertEntry (S, X, I+14);
-
            /* Remove the old code */
            CS_DelEntries (S, I, 7);