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Fixed a bug

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git-svn-id: svn://svn.cc65.org/cc65/trunk@89 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz 2000-06-20 06:53:01 +00:00
parent ea2f5c1309
commit dff9bae70a
1 changed files with 11 additions and 19 deletions
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18
src/cc65/optimize.c
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@ -1872,14 +1872,10 @@ static int OptPtrOps1 (Line** Start)
} }
/* Check if AX is actually used following the code above. If not, /* Check if AX is actually used following the code above. If not,
* we don't need to load A/X from regsave. Since X will never by * we don't need to load A/X from regsave. Since X will never be
* used without A, check just for A. * used without A, check just for A.
*/ */
NeedLoad = 1; NeedLoad = RegAUsed (L3[3]);
if (!RegAUsed (L3[3])) {
/* We don't need to load regsave */
NeedLoad = 0;
}
/* Special code for register variables */ /* Special code for register variables */
Done = 0; Done = 0;
@ -2042,8 +2038,8 @@ static int OptPtrOps1 (Line** Start)
/* If we need to load a/x, add the code */ /* If we need to load a/x, add the code */
if (NeedLoad) { if (NeedLoad) {
L = NewLineAfter (L, "\ttax");
L = NewLineAfter (L, "\tlda\tptr1"); L = NewLineAfter (L, "\tlda\tptr1");
L = NewLineAfter (L, "\tldx\tptr1+1");
} }
} }
@ -2157,11 +2153,7 @@ static int OptPtrOps2 (Line** Start)
* we don't need to load A/X from regsave. Since X will never by * we don't need to load A/X from regsave. Since X will never by
* used without A, check just for A. * used without A, check just for A.
*/ */
NeedLoad = 1; NeedLoad = RegAUsed (L3[0]);
if (!RegAUsed (L3[0])) {
/* We don't need to load regsave */
NeedLoad = 0;
}
/* Replace the ldy instruction, offset must point to the low byte */ /* Replace the ldy instruction, offset must point to the low byte */
sprintf (L->Line+7, "%02X", Offs); sprintf (L->Line+7, "%02X", Offs);
@ -2251,8 +2243,8 @@ static int OptPtrOps2 (Line** Start)
/* If we need to load a/x, add the code */ /* If we need to load a/x, add the code */
if (NeedLoad) { if (NeedLoad) {
L = NewLineAfter (L, "\ttax");
L = NewLineAfter (L, "\tlda\tptr1"); L = NewLineAfter (L, "\tlda\tptr1");
L = NewLineAfter (L, "\tldx\tptr1+1");
} }
/* Remove the code that is no longer needed */ /* Remove the code that is no longer needed */