updated nrm2 kernel for armv7

diff --git a/kernel/arm/nrm2_vfpv3.S b/kernel/arm/nrm2_vfpv3.S
index 34b251e..f676f51 100644 (file)
--- a/kernel/arm/nrm2_vfpv3.S
+++ b/kernel/arm/nrm2_vfpv3.S
@@ -405,12 +405,15 @@ KERNEL_S1_END_\@:
        .align 5
 
 #if defined(DOUBLE)
-       vsub.f64                d0 , d0 , d0            // scale=0.0
+       movs                    r12 , #0
+       vmov.f32                s0 , r12                // scale=0.0
+       vcvt.f64.f32    d0, s0
        vmov.f64                d1 , #1.0               // ssq=1.0
        vmov.f64                d7 , d1                 // value 1.0
        vmov.f64                d6 , d0                 // value 0.0
 #else
-       vsub.f32                s0 , s0 , s0            // scale=0.0
+       movs                    r12 , #0
+       vmov.f32                s0 , r12                // scale=0.0
        vmov.f32                s1 , #1.0               // ssq=1.0
        vmov.f32                s7 , s1                 // value 1.0
        vmov.f32                s6 , s0                 // value 0.0