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| author | Catalin Marinas <catalin.marinas@arm.com> | 2006-04-10 21:32:39 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-04-10 21:32:39 +0100 |
| commit | 1320a80d1d2587545f39bc0d2dc3adaf390250ef (patch) | |
| tree | 95a2af8dca357efe40a70258b70fa1227098098b /arch/arm/vfp/vfpdouble.c | |
| parent | adeff42236aec0601ec979d1a41cd6d9cf5a8c05 (diff) | |
| download | linux-3.10-1320a80d1d2587545f39bc0d2dc3adaf390250ef.tar.gz linux-3.10-1320a80d1d2587545f39bc0d2dc3adaf390250ef.tar.bz2 linux-3.10-1320a80d1d2587545f39bc0d2dc3adaf390250ef.zip | |
[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 <musha@aplix.co.jp>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/vfp/vfpdouble.c')
| -rw-r--r-- | arch/arm/vfp/vfpdouble.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm/vfp/vfpdouble.c b/arch/arm/vfp/vfpdouble.c index 9b367a65cb4..2418d12e7fb 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; |