Aren/NetBSD
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Support sin(-0.0).

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This commit is contained in:
isaki 2013-04-20 07:32:45 +00:00
parent cc956d5848
commit 0cee51ef54
1 changed files with 6 additions and 2 deletions
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8
sys/arch/m68k/fpe/fpu_trig.c
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@ -1,4 +1,4 @@
/* $NetBSD: fpu_trig.c,v 1.14 2013/04/20 05:27:05 isaki Exp $ */ /* $NetBSD: fpu_trig.c,v 1.15 2013/04/20 07:32:45 isaki Exp $ */
/* /*
* Copyright (c) 1995 Ken Nakata * Copyright (c) 1995 Ken Nakata
@ -57,7 +57,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: fpu_trig.c,v 1.14 2013/04/20 05:27:05 isaki Exp $"); __KERNEL_RCSID(0, "$NetBSD: fpu_trig.c,v 1.15 2013/04/20 07:32:45 isaki Exp $");
#include "fpu_emulate.h" #include "fpu_emulate.h"
@ -330,6 +330,10 @@ fpu_sin(struct fpemu *fe)
if (ISINF(&fe->fe_f2)) if (ISINF(&fe->fe_f2))
return fpu_newnan(fe); return fpu_newnan(fe);
/* if x is +0/-0, return +0/-0 */
if (ISZERO(&fe->fe_f2))
return &fe->fe_f2;
CPYFPN(&x, &fe->fe_f2); CPYFPN(&x, &fe->fe_f2);
/* x = abs(input) */ /* x = abs(input) */