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| author | Peter Maydell <peter.maydell@linaro.org> | 2011-02-10 11:29:00 +0000 |
|---|---|---|
| committer | Aurelien Jarno <aurelien@aurel32.net> | 2011-02-10 18:28:30 +0100 |
| commit | fb91678d2c9562484d16b5d7be9119784730c47e (patch) | |
| tree | 6ea4d5d312b80dda5ae8eab53bdc9ead76f4e39b /target-arm/helper.c | |
| parent | f591e1bedf01a4b1de0891a66320a0724412d009 (diff) | |
| download | qemu-fb91678d2c9562484d16b5d7be9119784730c47e.zip qemu-fb91678d2c9562484d16b5d7be9119784730c47e.tar.gz qemu-fb91678d2c9562484d16b5d7be9119784730c47e.tar.bz2 | |
target-arm: Silence NaNs resulting from half-precision conversions
Silence the NaNs that may result from half-precision conversion,
as we do for the other conversions.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'target-arm/helper.c')
| -rw-r--r-- | target-arm/helper.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c index d29c42b..e427747 100644 --- a/target-arm/helper.c +++ b/target-arm/helper.c @@ -2627,14 +2627,22 @@ float32 HELPER(vfp_fcvt_f16_to_f32)(uint32_t a, CPUState *env) { float_status *s = &env->vfp.fp_status; int ieee = (env->vfp.xregs[ARM_VFP_FPSCR] & (1 << 26)) == 0; - return float16_to_float32(make_float16(a), ieee, s); + float32 r = float16_to_float32(make_float16(a), ieee, s); + if (ieee) { + return float32_maybe_silence_nan(r); + } + return r; } uint32_t HELPER(vfp_fcvt_f32_to_f16)(float32 a, CPUState *env) { float_status *s = &env->vfp.fp_status; int ieee = (env->vfp.xregs[ARM_VFP_FPSCR] & (1 << 26)) == 0; - return float16_val(float32_to_float16(a, ieee, s)); + float16 r = float32_to_float16(a, ieee, s); + if (ieee) { + r = float16_maybe_silence_nan(r); + } + return float16_val(r); } float32 HELPER(recps_f32)(float32 a, float32 b, CPUState *env) |