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Don't generate inlined codes for integers shifts. If necessary the optimizer

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can do that. 


git-svn-id: svn://svn.cc65.org/cc65/trunk@4007 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
uz 2009-08-14 22:17:47 +00:00
parent 0b7b9354dc
commit 0c4144c586
1 changed files with 13 additions and 50 deletions
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63
src/cc65/codegen.c
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@ -1437,20 +1437,11 @@ void g_scale (unsigned flags, long val)
/* FALLTHROUGH */
case CF_INT:
if (IS_Get (&CodeSizeFactor) >= (p2+1)*130) {
AddCodeLine ("stx tmp1");
while (p2--) {
AddCodeLine ("asl a");
AddCodeLine ("rol tmp1");
}
AddCodeLine ("ldx tmp1");
} else {
if (flags & CF_UNSIGNED) {
AddCodeLine ("jsr shlax%d", p2);
} else {
AddCodeLine ("jsr aslax%d", p2);
}
}
if (flags & CF_UNSIGNED) {
AddCodeLine ("jsr shlax%d", p2);
} else {
AddCodeLine ("jsr aslax%d", p2);
}
break;
case CF_LONG:
@ -1499,28 +1490,9 @@ void g_scale (unsigned flags, long val)
case CF_INT:
if (flags & CF_UNSIGNED) {
if (IS_Get (&CodeSizeFactor) >= (p2+1)*130) {
AddCodeLine ("stx tmp1");
while (p2--) {
AddCodeLine ("lsr tmp1");
AddCodeLine ("ror a");
}
AddCodeLine ("ldx tmp1");
} else {
AddCodeLine ("jsr lsrax%d", p2);
}
AddCodeLine ("jsr lsrax%d", p2);
} else {
if (IS_Get (&CodeSizeFactor) >= (p2+1)*150) {
AddCodeLine ("stx tmp1");
while (p2--) {
AddCodeLine ("cpx #$80");
AddCodeLine ("ror tmp1");
AddCodeLine ("ror a");
}
AddCodeLine ("ldx tmp1");
} else {
AddCodeLine ("jsr asrax%d", p2);
}
AddCodeLine ("jsr asrax%d", p2);
}
break;
@ -2992,7 +2964,7 @@ void g_asr (unsigned flags, unsigned long val)
}
return;
} else if (val == 8 && (flags & CF_UNSIGNED)) {
AddCodeLine ("txa");
AddCodeLine ("txa");
AddCodeLine ("ldx sreg");
AddCodeLine ("ldy sreg+1");
AddCodeLine ("sty sreg");
@ -3059,20 +3031,11 @@ void g_asl (unsigned flags, unsigned long val)
/* Done */
return;
} else if (val >= 1 && val <= 4) {
if (IS_Get (&CodeSizeFactor) >= (long) (val+1)*130) {
AddCodeLine ("stx tmp1");
while (val--) {
AddCodeLine ("asl a");
AddCodeLine ("rol tmp1");
}
AddCodeLine ("ldx tmp1");
} else {
if (flags & CF_UNSIGNED) {
AddCodeLine ("jsr shlax%ld", val);
} else {
AddCodeLine ("jsr aslax%ld", val);
}
}
if (flags & CF_UNSIGNED) {
AddCodeLine ("jsr shlax%ld", val);
} else {
AddCodeLine ("jsr aslax%ld", val);
}
return;
}
break;