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Changed g_addaddr_local() codegen to reduce code size.

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acqn 2021-02-22 12:33:26 +08:00 committed by Oliver Schmidt
parent 8eeaaa3f36
commit b02838439c
1 changed files with 30 additions and 21 deletions
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51
src/cc65/codegen.c
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@ -2112,29 +2112,38 @@ void g_addaddr_local (unsigned flags attribute ((unused)), int offs)
/* Add the offset */
offs -= StackPtr;
if (offs != 0) {
/* We cannot address more then 256 bytes of locals anyway */
L = GetLocalLabel();
CheckLocalOffs (offs);
AddCodeLine ("clc");
AddCodeLine ("adc #$%02X", offs & 0xFF);
/* Do also skip the CLC insn below */
AddCodeLine ("bcc %s", LocalLabelName (L));
AddCodeLine ("inx");
}
if (IS_Get (&CodeSizeFactor) <= 100) {
if (offs != 0) {
/* We cannot address more then 256 bytes of locals anyway */
g_inc (CF_INT | CF_CONST, offs);
}
/* Add the current stackpointer value */
AddCodeLine ("jsr leaaxsp");
} else {
if (offs != 0) {
/* We cannot address more then 256 bytes of locals anyway */
L = GetLocalLabel();
CheckLocalOffs (offs);
AddCodeLine ("clc");
AddCodeLine ("adc #$%02X", offs & 0xFF);
/* Do also skip the CLC insn below */
AddCodeLine ("bcc %s", LocalLabelName (L));
AddCodeLine ("inx");
}
/* Add the current stackpointer value */
AddCodeLine ("clc");
if (L != 0) {
/* Label was used above */
g_defcodelabel (L);
/* Add the current stackpointer value */
AddCodeLine ("clc");
if (L != 0) {
/* Label was used above */
g_defcodelabel (L);
}
AddCodeLine ("adc sp");
AddCodeLine ("tay");
AddCodeLine ("txa");
AddCodeLine ("adc sp+1");
AddCodeLine ("tax");
AddCodeLine ("tya");
}
AddCodeLine ("adc sp");
AddCodeLine ("tay");
AddCodeLine ("txa");
AddCodeLine ("adc sp+1");
AddCodeLine ("tax");
AddCodeLine ("tya");
}