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/******************************************************************************\
* Authors: Iconoclast *
* Release: 2013.11.26 *
* License: CC0 Public Domain Dedication *
* *
* To the extent possible under law, the author(s) have dedicated all copyright *
* and related and neighboring rights to this software to the public domain *
* worldwide. This software is distributed without any warranty. *
* *
* You should have received a copy of the CC0 Public Domain Dedication along *
* with this software. *
* If not, see <http://creativecommons.org/publicdomain/zero/1.0/>. *
\******************************************************************************/
#include "vu.h"
INLINE static void do_ne(usf_state_t * state, short* VD, short* VS, short* VT)
{
#ifdef ARCH_MIN_ARM_NEON
int16x8_t vs, vt,vaccl, ne;
int16x8_t zero = vdupq_n_s16(0);
uint16x8_t cond;
vs = vld1q_s16((const int16_t*)VS);
vt = vld1q_s16((const int16_t*)VT);
ne = vld1q_s16((const int16_t*)state->ne);
cond = vceqq_s16(vs,vt);
cond = vmvnq_u16(cond); // this is needed if you need to do "not-equal"
cond = (uint16x8_t)vnegq_s16((int16x8_t)cond);
uint16x8_t comp = vorrq_u16(cond, (uint16x8_t)ne);
vst1q_s16(state->clip, zero);
vst1q_s16(state->comp, (int16x8_t)cond);
vector_copy(VACC_L, VS);
vector_copy(VD, VACC_L);
vst1q_s16(state->ne, zero);
vst1q_s16(state->co, zero);
return;
#else
register int i;
for (i = 0; i < N; i++)
state->clip[i] = 0;
for (i = 0; i < N; i++)
state->comp[i] = (VS[i] != VT[i]);
for (i = 0; i < N; i++)
state->comp[i] = state->comp[i] | state->ne[i];
#if (0)
merge(VACC_L, state->comp, VS, VT); /* correct but redundant */
#else
vector_copy(VACC_L, VS);
#endif
vector_copy(VD, VACC_L);
for (i = 0; i < N; i++)
state->ne[i] = 0;
for (i = 0; i < N; i++)
state->co[i] = 0;
return;
#endif
}
static void VNE(usf_state_t * state, int vd, int vs, int vt, int e)
{
ALIGNED short ST[N];
SHUFFLE_VECTOR(ST, state->VR[vt], e);
do_ne(state, state->VR[vd], state->VR[vs], ST);
return;
}