diff options
| author | Tom Musta <tommusta@gmail.com> | 2014-01-15 08:10:45 -0600 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2014-03-05 03:06:38 +0100 |
| commit | 7ee19fb9d682689d36c849576c808cf92e3bae40 (patch) | |
| tree | 4ff10b420a15adceebebdb535af22c02e975e22a /target-ppc/fpu_helper.c | |
| parent | 3d1140bf3e73e4fd244914bdf2867fe634759c71 (diff) | |
target-ppc: Scalar Non-Signalling Conversions
This patch adds the non-signalling scalar conversion instructions:
- VSX Scalar Convert Single Precision to Double Precision
Non-Signalling (xscvspdpn)
- VSX Scalar Convert Double Precision to Single Precision
Non-Signalling (xscvdpspn)
Signed-off-by: Tom Musta <tommusta@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'target-ppc/fpu_helper.c')
| -rw-r--r-- | target-ppc/fpu_helper.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/target-ppc/fpu_helper.c b/target-ppc/fpu_helper.c index c35135eb8e..dfd9b8001e 100644 --- a/target-ppc/fpu_helper.c +++ b/target-ppc/fpu_helper.c @@ -2487,6 +2487,22 @@ VSX_CVT_FP_TO_FP(xscvspdp, 1, float32, float64, f32[j], f64[i], 1) VSX_CVT_FP_TO_FP(xvcvdpsp, 2, float64, float32, f64[i], f32[j], 0) VSX_CVT_FP_TO_FP(xvcvspdp, 2, float32, float64, f32[j], f64[i], 0) +uint64_t helper_xscvdpspn(CPUPPCState *env, uint64_t xb) +{ + float_status tstat = env->fp_status; + set_float_exception_flags(0, &tstat); + + return (uint64_t)float64_to_float32(xb, &tstat) << 32; +} + +uint64_t helper_xscvspdpn(CPUPPCState *env, uint64_t xb) +{ + float_status tstat = env->fp_status; + set_float_exception_flags(0, &tstat); + + return float32_to_float64(xb >> 32, &tstat); +} + /* VSX_CVT_FP_TO_INT - VSX floating point to integer conversion * op - instruction mnemonic * nels - number of elements (1, 2 or 4) |