asm() bug on 386?

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1 total messages Started by Charles Hannum Thu, 24 Dec 1992 23:36

#1474

Author: Charles Hannum
Date: Thu, 24 Dec 1992 23:36

17 lines
902 bytes

Using GCC 2.3.2 under 386BSD and GCC 2.2.2 under Linux:

bsdsux # ./cc1 -O0 bar.i
 ldexpIOT trap (core dumped)
bsdsux # exit

-- bar.i ------------8<-----snip-----8<-----snip-----8<-----snip-----8<-----
double ldexp (double value, int exp)
{
	double temp, texp, temp2;
	texp = exp;
	asm ("fscale ; fxch %%st(1) ; fstp%L1 %1 "
		: "=f" (temp), "=0" (temp2)
		: "0" (texp), "f" (value));
	return (temp);
}
-----8<-----snip-----8<-----snip-----8<-----snip-----8<-----snip-----8<-----

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