Patchwork [46/48] target-arm: fix neon vrsqrts instruction

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Submitter Riku Voipio
Date March 26, 2010, 4:07 p.m.
Message ID <0e4e5d3cfce2e3c3bdf16ae84ae65216ba321094.1269617187.git.riku.voipio@nokia.com>
Download mbox | patch
Permalink /patch/48682/
State New
Headers show

Comments

Riku Voipio - March 26, 2010, 4:07 p.m.
From: Juha Riihimäki <juha.riihimaki@nokia.com>

Signed-Off-By: Riku Voipio <riku.voipio@nokia.com>
Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
---
 target-arm/helper.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

Patch

diff --git a/target-arm/helper.c b/target-arm/helper.c
index 798e9f9..1f5f307 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -2687,8 +2687,9 @@  float32 HELPER(recps_f32)(float32 a, float32 b, CPUState *env)
 float32 HELPER(rsqrts_f32)(float32 a, float32 b, CPUState *env)
 {
     float_status *s = &env->vfp.fp_status;
+    float32 two = int32_to_float32(2, s);
     float32 three = int32_to_float32(3, s);
-    return float32_sub(three, float32_mul(a, b, s), s);
+    return float32_div(float32_sub(three, float32_mul(a, b, s), s), two, s);
 }
 
 /* NEON helpers.  */