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added missing file

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This commit is contained in:
Raymond Knopp
2020-04-23 22:49:33 +02:00
parent d7d196c280
commit 7689b9394a
1 changed files with 62 additions and 0 deletions
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openair1/PHY/NR_REFSIG/scrambling_luts.c
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/*
* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The OpenAirInterface Software Alliance licenses this file to You under
* the OAI Public License, Version 1.1 (the "License"); you may not use this file
* except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.openairinterface.org/?page_id=698
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*-------------------------------------------------------------------------------
* For more information about the OpenAirInterface (OAI) Software Alliance:
* contact@openairinterface.org
*/
/* Lookup tables for 3GPP scrambling/unscrambling */
/* Author R. Knopp / EURECOM / OpenAirInterface.org */
#ifndef __SCRAMBLING_LUTS__C__
#define __SCRAMBLING_LUTS__C__
#include "PHY/impl_defs_nr.h"
#include "PHY/sse_intrin.h"
__m64 byte2m64_re[256];
__m64 byte2m64_im[256];
void init_byte2m64() {
for (int s=0;s<256;s++) {
byte2m64_re[s] = _mm_insert_pi16(byte2m64_re[s],(1-2*(s&1)),0);
byte2m64_im[s] = _mm_insert_pi16(byte2m64_im[s],(1-2*((s>>1)&1)),0);
byte2m64_re[s] = _mm_insert_pi16(byte2m64_re[s],(1-2*((s>>2)&1)),1);
byte2m64_im[s] = _mm_insert_pi16(byte2m64_im[s],(1-2*((s>>3)&1)),1);
byte2m64_re[s] = _mm_insert_pi16(byte2m64_re[s],(1-2*((s>>4)&1)),2);
byte2m64_im[s] = _mm_insert_pi16(byte2m64_im[s],(1-2*((s>>5)&1)),2);
byte2m64_re[s] = _mm_insert_pi16(byte2m64_re[s],(1-2*((s>>6)&1)),3);
byte2m64_im[s] = _mm_insert_pi16(byte2m64_im[s],(1-2*((s>>7)&1)),3);
printf("init_scrambling_luts: s %x (%d) ((%d,%d),(%d,%d),(%d,%d),(%d,%d))\n",
((uint16_t*)&s)[0],
(1-2*(s&1)),
((int16_t*)&byte2m64_re[s])[0],((int16_t*)&byte2m64_im[s])[0],
((int16_t*)&byte2m64_re[s])[1],((int16_t*)&byte2m64_im[s])[1],
((int16_t*)&byte2m64_re[s])[2],((int16_t*)&byte2m64_im[s])[2],
((int16_t*)&byte2m64_re[s])[3],((int16_t*)&byte2m64_im[s])[3]);
}
}
void init_scrambling_luts() {
init_byte2m64();
}
#endif