Module Name: src
Committed By: isaki
Date: Sat Apr 20 07:33:06 UTC 2013
Modified Files:
src/sys/arch/m68k/fpe: fpu_hyperb.c
Log Message:
Support sinh(-0.0) and tanh(-0.0).
To generate a diff of this commit:
cvs rdiff -u -r1.14 -r1.15 src/sys/arch/m68k/fpe/fpu_hyperb.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_hyperb.c
diff -u src/sys/arch/m68k/fpe/fpu_hyperb.c:1.14 src/sys/arch/m68k/fpe/fpu_hyperb.c:1.15
--- src/sys/arch/m68k/fpe/fpu_hyperb.c:1.14 Sat Apr 20 05:27:05 2013
+++ src/sys/arch/m68k/fpe/fpu_hyperb.c Sat Apr 20 07:33:05 2013
@@ -1,4 +1,4 @@
-/* $NetBSD: fpu_hyperb.c,v 1.14 2013/04/20 05:27:05 isaki Exp $ */
+/* $NetBSD: fpu_hyperb.c,v 1.15 2013/04/20 07:33:05 isaki Exp $ */
/*
* Copyright (c) 1995 Ken Nakata
@@ -57,7 +57,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: fpu_hyperb.c,v 1.14 2013/04/20 05:27:05 isaki Exp $");
+__KERNEL_RCSID(0, "$NetBSD: fpu_hyperb.c,v 1.15 2013/04/20 07:33:05 isaki Exp $");
#include <machine/ieee.h>
@@ -233,6 +233,10 @@ fpu_sinh(struct fpemu *fe)
if (ISINF(&fe->fe_f2))
return &fe->fe_f2;
+ /* if x is +0/-0, return +0/-0 */
+ if (ISZERO(&fe->fe_f2))
+ return &fe->fe_f2;
+
CPYFPN(&s0, &fe->fe_f2);
r = __fpu_sinhcosh_taylor(fe, &s0, 2);
@@ -250,6 +254,10 @@ fpu_tanh(struct fpemu *fe)
if (ISNAN(&fe->fe_f2))
return &fe->fe_f2;
+ /* if x is +0/-0, return +0/-0 */
+ if (ISZERO(&fe->fe_f2))
+ return &fe->fe_f2;
+
if (ISINF(&fe->fe_f2)) {
sign = fe->fe_f2.fp_sign;
fpu_const(&fe->fe_f2, FPU_CONST_1);
