Module Name: src
Committed By: isaki
Date: Sat Apr 20 05:09:41 UTC 2013
Modified Files:
src/sys/arch/m68k/fpe: fpu_trig.c
Log Message:
Support tan(-0.0).
To generate a diff of this commit:
cvs rdiff -u -r1.12 -r1.13 src/sys/arch/m68k/fpe/fpu_trig.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/m68k/fpe/fpu_trig.c
diff -u src/sys/arch/m68k/fpe/fpu_trig.c:1.12 src/sys/arch/m68k/fpe/fpu_trig.c:1.13
--- src/sys/arch/m68k/fpe/fpu_trig.c:1.12 Fri Apr 19 13:57:52 2013
+++ src/sys/arch/m68k/fpe/fpu_trig.c Sat Apr 20 05:09:41 2013
@@ -1,4 +1,4 @@
-/* $NetBSD: fpu_trig.c,v 1.12 2013/04/19 13:57:52 isaki Exp $ */
+/* $NetBSD: fpu_trig.c,v 1.13 2013/04/20 05:09:41 isaki Exp $ */
/*
* Copyright (c) 1995 Ken Nakata
@@ -57,7 +57,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fpu_trig.c,v 1.12 2013/04/19 13:57:52 isaki Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fpu_trig.c,v 1.13 2013/04/20 05:09:41 isaki Exp $");
#include "fpu_emulate.h"
@@ -409,6 +409,10 @@ fpu_tan(struct fpemu *fe)
if (ISINF(&fe->fe_f2))
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);
/* sin(x) */
