Hi, I am trying to make the function vec_reluf working from naturedsp_hifi4.
I've made a simple test
float32_t testIn[5] = {-1.0f, 2.3f, 3.0f, -4.4f, 2000.0f};
float32_t testOut[5] ={0};
vec_reluf(testOut, testIn, 1000.0f, 5);
the expected behavior is to obtain:
testOut={0, 2.3, 3, 0, 1000}
but the result is:
testOut = {0, 1.40129846e-45, 1.40129846e-45, 0 , 1.40129846e-45}
here is the function:
void vec_reluf (float32_t * y, const float32_t * x, float32_t K, int N)
{
ae_valign aY;
const xtfloatx2* restrict pX=(const xtfloatx2*)x;
xtfloatx2* restrict pY=( xtfloatx2*)y;
xtfloatx2 zero=XT_CONST_S(0);
int n;
if (N<=0) return;
if (((uintptr_t)pX)&7)
{
xtfloat t;
XT_LSIP(t,castxcc(xtfloat,pX),sizeof(xtfloat));
t=XT_MIN_S(K,t);
t=XT_MAX_S(t,zero);
XT_SSIP(t,castxcc(xtfloat,pY),sizeof(xtfloat));
N--;
}
aY=AE_ZALIGN64();
for(n=0; n<(N>>1); n++)
{
xtfloatx2 t;
XT_LSX2IP(t,pX,sizeof(xtfloatx2));
t=XT_MIN_SX2(K,t);
t=XT_MAX_SX2(t,zero);
XT_SASX2IP(t,aY,pY);
}
AE_SA64POS_FP(aY,pY);
if(N&1)
{
xtfloat t;
t=XT_LSI((const xtfloat*)pX,0);
t=XT_MIN_S(K,t);
t=XT_MAX_S(t,zero);
XT_SSI(t,(xtfloat*)pY,0);
}
}
Any suggestion?
Thx, Thomas
