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ldaxysp doesn't return flags any more.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@3728 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2006-04-15 20:45:35 +00:00
parent c156b20738
commit 1ac3cbe420
1 changed files with 4 additions and 6 deletions
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10
src/cc65/coptstore.c
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@ -62,8 +62,7 @@ unsigned OptStore1 (CodeSeg* S)
* ldy #n+1 * ldy #n+1
* jsr ldaxysp * jsr ldaxysp
* *
* and remove the useless load, provided that the next insn doesn't use flags * and remove the useless load.
* from the load.
*/ */
{ {
unsigned Changes = 0; unsigned Changes = 0;
@ -72,7 +71,7 @@ unsigned OptStore1 (CodeSeg* S)
unsigned I = 0; unsigned I = 0;
while (I < CS_GetEntryCount (S)) { while (I < CS_GetEntryCount (S)) {
CodeEntry* L[5]; CodeEntry* L[4];
/* Get next entry */ /* Get next entry */
L[0] = CS_GetEntry (S, I); L[0] = CS_GetEntry (S, I);
@ -82,12 +81,11 @@ unsigned OptStore1 (CodeSeg* S)
CE_IsConstImm (L[0]) && CE_IsConstImm (L[0]) &&
L[0]->Num < 0xFF && L[0]->Num < 0xFF &&
!CS_RangeHasLabel (S, I+1, 3) && !CS_RangeHasLabel (S, I+1, 3) &&
CS_GetEntries (S, L+1, I+1, 4) && CS_GetEntries (S, L+1, I+1, 3) &&
CE_IsCallTo (L[1], "staxysp") && CE_IsCallTo (L[1], "staxysp") &&
L[2]->OPC == OP65_LDY && L[2]->OPC == OP65_LDY &&
CE_IsKnownImm (L[2], L[0]->Num + 1) && CE_IsKnownImm (L[2], L[0]->Num + 1) &&
CE_IsCallTo (L[3], "ldaxysp") && CE_IsCallTo (L[3], "ldaxysp")) {
!CE_UseLoadFlags (L[4])) {
/* Register has already the correct value, remove the loads */ /* Register has already the correct value, remove the loads */
CS_DelEntries (S, I+2, 2); CS_DelEntries (S, I+2, 2);