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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/vfpsingle.c | |
| parent | adeff42236aec0601ec979d1a41cd6d9cf5a8c05 (diff) | |
| download | linux-1320a80d1d2587545f39bc0d2dc3adaf390250ef.tar.bz2 | |
[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/vfpsingle.c')
| -rw-r--r-- | arch/arm/vfp/vfpsingle.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm/vfp/vfpsingle.c b/arch/arm/vfp/vfpsingle.c index 14dd696ddeb1..df6e5e23bccb 100644 --- a/arch/arm/vfp/vfpsingle.c +++ b/arch/arm/vfp/vfpsingle.c @@ -632,6 +632,7 @@ static u32 vfp_single_ftosi(int sd, int unused, s32 m, u32 fpscr) struct vfp_single vsm; u32 d, exceptions = 0; int rmode = fpscr & FPSCR_RMODE_MASK; + int tm; vfp_single_unpack(&vsm, m); vfp_single_dump("VSM", &vsm); @@ -639,10 +640,14 @@ static u32 vfp_single_ftosi(int sd, int unused, s32 m, u32 fpscr) /* * Do we have a denormalised number? */ + tm = vfp_single_type(&vsm); if (vfp_single_type(&vsm) & VFP_DENORMAL) exceptions |= FPSCR_IDC; - if (vsm.exponent >= 127 + 32) { + if (tm & VFP_NAN) { + d = 0; + exceptions |= FPSCR_IOC; + } else if (vsm.exponent >= 127 + 32) { /* * m >= 2^31-2^7: invalid */ |