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Use X instead of Y register

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git-svn-id: svn://svn.cc65.org/cc65/trunk@961 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cuz 2001-09-21 13:49:23 +00:00
parent fa1f814be5
commit f3b401cd21
1 changed files with 22 additions and 22 deletions
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42
src/cc65/codeopt.c
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@ -2233,9 +2233,9 @@ static unsigned OptPtrLoad4 (CodeSeg* S)
* *
* and replace it by: * and replace it by:
* *
* ldy xxx * ldx xxx
* lda label,x
* ldx #$00 * ldx #$00
* lda label,y
*/ */
{ {
unsigned Changes = 0; unsigned Changes = 0;
@ -2288,18 +2288,18 @@ static unsigned OptPtrLoad4 (CodeSeg* S)
/* We will create all the new stuff behind the current one so /* We will create all the new stuff behind the current one so
* we keep the line references. * we keep the line references.
*/ */
X = NewCodeEntry (OP65_LDY, L[3]->AM, L[3]->Arg, 0, L[0]->LI); X = NewCodeEntry (OP65_LDX, L[3]->AM, L[3]->Arg, 0, L[0]->LI);
CS_InsertEntry (S, X, I+8); CS_InsertEntry (S, X, I+8);
X = NewCodeEntry (OP65_LDX, AM65_IMM, "$00", 0, L[0]->LI);
CS_InsertEntry (S, X, I+9);
Label = memcpy (xmalloc (Len-2), L[0]->Arg+2, Len-3); Label = memcpy (xmalloc (Len-2), L[0]->Arg+2, Len-3);
Label[Len-3] = '\0'; Label[Len-3] = '\0';
X = NewCodeEntry (OP65_LDA, AM65_ABSY, Label, 0, L[0]->LI); X = NewCodeEntry (OP65_LDA, AM65_ABSX, Label, 0, L[0]->LI);
CS_InsertEntry (S, X, I+10); CS_InsertEntry (S, X, I+9);
xfree (Label); xfree (Label);
X = NewCodeEntry (OP65_LDX, AM65_IMM, "$00", 0, L[0]->LI);
CS_InsertEntry (S, X, I+10);
/* Remove the old code */ /* Remove the old code */
CS_DelEntries (S, I, 8); CS_DelEntries (S, I, 8);
@ -2335,10 +2335,10 @@ static unsigned OptPtrLoad5 (CodeSeg* S)
* and replace it by: * and replace it by:
* *
* ldy #$xx * ldy #$xx
* ldx #$00
* lda (sp),y * lda (sp),y
* tay * tax
* lda label,y * lda label,x
* ldx #$00
*/ */
{ {
unsigned Changes = 0; unsigned Changes = 0;
@ -2391,25 +2391,25 @@ static unsigned OptPtrLoad5 (CodeSeg* S)
CodeEntry* X; CodeEntry* X;
char* Label; char* Label;
/* Add the ldx */
X = NewCodeEntry (OP65_LDX, AM65_IMM, "$00", 0, L[0]->LI);
CS_InsertEntry (S, X, I+3);
/* Add the lda */ /* Add the lda */
X = NewCodeEntry (OP65_LDA, AM65_ZP_INDY, L[4]->Arg, 0, L[0]->LI); X = NewCodeEntry (OP65_LDA, AM65_ZP_INDY, L[4]->Arg, 0, L[0]->LI);
CS_InsertEntry (S, X, I+4); CS_InsertEntry (S, X, I+3);
/* Add the tay */ /* Add the tax */
X = NewCodeEntry (OP65_TAY, AM65_IMP, 0, 0, L[0]->LI); X = NewCodeEntry (OP65_TAX, AM65_IMP, 0, 0, L[0]->LI);
CS_InsertEntry (S, X, I+5); CS_InsertEntry (S, X, I+4);
/* Add the lda */ /* Add the lda */
Label = memcpy (xmalloc (Len-2), L[0]->Arg+2, Len-3); Label = memcpy (xmalloc (Len-2), L[0]->Arg+2, Len-3);
Label[Len-3] = '\0'; Label[Len-3] = '\0';
X = NewCodeEntry (OP65_LDA, AM65_ABSY, Label, 0, L[0]->LI); X = NewCodeEntry (OP65_LDA, AM65_ABSX, Label, 0, L[0]->LI);
CS_InsertEntry (S, X, I+6); CS_InsertEntry (S, X, I+5);
xfree (Label); xfree (Label);
/* Add the ldx */
X = NewCodeEntry (OP65_LDX, AM65_IMM, "$00", 0, L[0]->LI);
CS_InsertEntry (S, X, I+6);
/* Remove the old code */ /* Remove the old code */
CS_DelEntries (S, I, 2); CS_DelEntries (S, I, 2);
CS_DelEntries (S, I+5, 6); CS_DelEntries (S, I+5, 6);