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More optimizations

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git-svn-id: svn://svn.cc65.org/cc65/trunk@970 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz
2001-09-25 12:34:34 +00:00
parent 9b9508cbd8
commit 8d0dfb5b41
4 changed files with 163 additions and 21 deletions
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28
src/cc65/codegen.c
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@@ -170,7 +170,7 @@ void g_preamble (void)
AddTextLine ("\t.debuginfo\t%s", (DebugInfo != 0)? "on" : "off");
/* Import the stack pointer for direct auto variable access */
AddTextLine ("\t.importzp\tsp, sreg, regsave, regbank, tmp1, ptr1");
AddTextLine ("\t.importzp\tsp, sreg, regsave, regbank, tmp1, ptr1, ptr2");
/* Define long branch macros */
AddTextLine ("\t.macpack\tlongbranch");
@@ -608,7 +608,7 @@ void g_getimmed (unsigned Flags, unsigned long Val, unsigned Offs)
if (B2 == B4) {
AddCodeLine ("stx sreg+1");
Done |= 0x08;
}
}
if ((Done & 0x04) == 0 && B1 != B3) {
AddCodeLine ("lda #$%02X", B3);
AddCodeLine ("sta sreg");
@@ -1701,11 +1701,27 @@ void g_addeqlocal (unsigned flags, int offs, unsigned long val)
/* FALLTHROUGH */
case CF_INT:
if (flags & CF_CONST) {
g_getimmed (flags, val, 0);
}
ldyconst (offs);
AddCodeLine ("jsr addeqysp");
if (flags & CF_CONST) {
if (CodeSizeFactor >= 400) {
AddCodeLine ("clc");
AddCodeLine ("lda #$%02X", (int)(val & 0xFF));
AddCodeLine ("adc (sp),y");
AddCodeLine ("sta (sp),y");
AddCodeLine ("iny");
AddCodeLine ("lda #$%02X", (int) ((val >> 8) & 0xFF));
AddCodeLine ("adc (sp),y");
AddCodeLine ("sta (sp),y");
AddCodeLine ("tax");
AddCodeLine ("dey");
AddCodeLine ("lda (sp),y");
} else {
g_getimmed (flags, val, 0);
AddCodeLine ("jsr addeqysp");
}
} else {
AddCodeLine ("jsr addeqysp");
}
break;
case CF_LONG: