From 1320a80d1d2587545f39bc0d2dc3adaf390250ef Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Mon, 10 Apr 2006 21:32:39 +0100 Subject: [ARM] 3471/1: FTOSI functions should return 0 for NaN Patch from Catalin Marinas The NaN case was dealed with by the "exponent >= ... + 32" condition but it was not setting the value "d" to 0. Signed-off-by: Ken'ichi Kuromusha Signed-off-by: Russell King --- arch/arm/vfp/vfpdouble.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'arch/arm/vfp/vfpdouble.c') diff --git a/arch/arm/vfp/vfpdouble.c b/arch/arm/vfp/vfpdouble.c index 9b367a65cb4d..2418d12e7fb5 100644 --- a/arch/arm/vfp/vfpdouble.c +++ b/arch/arm/vfp/vfpdouble.c @@ -588,6 +588,7 @@ static u32 vfp_double_ftosi(int sd, int unused, int dm, u32 fpscr) struct vfp_double vdm; u32 d, exceptions = 0; int rmode = fpscr & FPSCR_RMODE_MASK; + int tm; vfp_double_unpack(&vdm, vfp_get_double(dm)); vfp_double_dump("VDM", &vdm); @@ -595,10 +596,14 @@ static u32 vfp_double_ftosi(int sd, int unused, int dm, u32 fpscr) /* * Do we have denormalised number? */ - if (vfp_double_type(&vdm) & VFP_DENORMAL) + tm = vfp_double_type(&vdm); + if (tm & VFP_DENORMAL) exceptions |= FPSCR_IDC; - if (vdm.exponent >= 1023 + 32) { + if (tm & VFP_NAN) { + d = 0; + exceptions |= FPSCR_IOC; + } else if (vdm.exponent >= 1023 + 32) { d = 0x7fffffff; if (vdm.sign) d = ~d; -- cgit v1.2.3