3gpplte_sse.c 25.9 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
/*******************************************************************************
    OpenAirInterface
    Copyright(c) 1999 - 2014 Eurecom

    OpenAirInterface is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.


    OpenAirInterface is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with OpenAirInterface.The full GNU General Public License is
   included in this distribution in the file called "COPYING". If not,
   see <http://www.gnu.org/licenses/>.

  Contact Information
  OpenAirInterface Admin: openair_admin@eurecom.fr
  OpenAirInterface Tech : openair_tech@eurecom.fr
24
  OpenAirInterface Dev  : openair4g-devel@lists.eurecom.fr
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

  Address      : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE

 *******************************************************************************/
/* file: 3gpplte_sse.c
   purpose: Encoding routines for implementing Turbo-coded (DLSCH) transport channels from 36-212, V8.6 2009-03
   author: Laurent Thomas
   maintainer: raymond.knopp@eurecom.fr
   date: 09.2012
*/
#ifndef TC_MAIN
#include "defs.h"
#include "extern_3GPPinterleaver.h"
#else
#include "vars.h"
40
#include <stdint.h>
41 42 43 44 45 46 47 48 49 50 51
#endif
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#include "PHY/sse_intrin.h"

#define print_bytes(s,x) printf("%s %x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x\n",s,(x)[0],(x)[1],(x)[2],(x)[3],(x)[4],(x)[5],(x)[6],(x)[7],(x)[8],(x)[9],(x)[10],(x)[11],(x)[12],(x)[13],(x)[14],(x)[15])
#define print_shorts(s,x) printf("%s %x,%x,%x,%x,%x,%x,%x,%x\n",s,(x)[0],(x)[1],(x)[2],(x)[3],(x)[4],(x)[5],(x)[6],(x)[7])
#define print_ints(s,x) printf("%s %x %x %x %x\n",s,(x)[0],(x)[1],(x)[2],(x)[3])

52
#define print_bytes2(s,x) printf("%s %x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x\n",s,(x)[0],(x)[1],(x)[2],(x)[3],(x)[4],(x)[5],(x)[6],(x)[7],(x)[8],(x)[9],(x)[10],(x)[11],(x)[12],(x)[13],(x)[14],(x)[15],(x)[16],(x)[17],(x)[18],(x)[19],(x)[20],(x)[21],(x)[22],(x)[23],(x)[24],(x)[25],(x)[26],(x)[27],(x)[28],(x)[29],(x)[30],(x)[31])
53 54

//#define DEBUG_TURBO_ENCODER 1
55
//#define CALLGRIND 1
56 57 58 59 60 61
unsigned short threegpplte_interleaver_output;
unsigned long long threegpplte_interleaver_tmp;

#if defined(__x86_64__) || defined(__i386__)
struct treillis {
  union {
62 63
    __m64 systematic_andp1_64[3];
    uint8_t systematic_andp1_8[24];
64 65 66
  };
  union {
    __m64 parity2_64[3];
67
    uint8_t parity2_8[24];
68 69 70 71 72 73 74 75
  };
  int exit_state;
}  __attribute__ ((aligned(64)));

#elif defined(__arm__)

struct treillis {
  union {
76 77
    uint8x8_t systematic_andp1_64[3];
    char systematic_andp1_8[24];
78 79 80 81 82 83 84 85 86 87
  }__attribute__((aligned(64)));
  union {
    uint8x8_t parity2_64[3];
    char parity2_8[24];
  }__attribute__((aligned(64)));
  int exit_state;
};
#endif

struct treillis all_treillis[8][256];
88

89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113
int all_treillis_initialized=0;

static inline unsigned char threegpplte_rsc(unsigned char input,unsigned char *state)
{
  unsigned char output;
  output = (input ^ (*state>>2) ^ (*state>>1))&1;
  *state = (((input<<2)^(*state>>1))^((*state>>1)<<2)^((*state)<<2))&7;
  return(output);
}

static inline void threegpplte_rsc_termination(unsigned char *x,unsigned char *z,unsigned char *state)
{
  *z     = ((*state>>2) ^ (*state))   &1;
  *x     = ((*state)    ^ (*state>>1))   &1;
  *state = (*state)>>1;
}

void treillis_table_init(void)
{
  //struct treillis t[][]=all_treillis;
  //t=memalign(16,sizeof(struct treillis)*8*256);
  int i, j,b;
  unsigned char v, current_state;

  // clear all_treillis
114
  for (i=0; i<8; i++) {
115
    bzero( all_treillis[i], sizeof(all_treillis[0]) );
116
  }
117 118 119 120 121 122

  for (i=0; i<8; i++) { //all possible initial states
    for (j=0; j<=255; j++) { // all possible values of a byte
      current_state=i;

      for (b=0; b<8 ; b++ ) { // pre-compute the image of the byte j in _m128i vector right place
123 124
        all_treillis[i][j].systematic_andp1_8[b*3]= (j&(1<<(7-b)))>>(7-b);
        v=threegpplte_rsc( all_treillis[i][j].systematic_andp1_8[b*3] ,
125
                           &current_state);
126 127
	all_treillis[i][j].systematic_andp1_8[b*3+1]=v; // for the yparity1
	//        all_treillis[i][j].parity1_8[b*3+1]=v; // for the yparity1
128 129 130 131 132 133 134 135 136 137 138 139 140 141 142
        all_treillis[i][j].parity2_8[b*3+2]=v; // for the yparity2
      }

      all_treillis[i][j].exit_state=current_state;
    }
  }

  all_treillis_initialized=1;
  return ;
}


char interleave_compact_byte(short * base_interleaver,unsigned char * input, unsigned char * output, int n)
{

143
  char expandInput[768*8] __attribute__((aligned(32)));
144 145
  int i,loop=n>>4;
#if defined(__x86_64__) || defined(__i386__)
146
#ifndef __AVX2__
147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164
  __m128i *i_128=(__m128i *)input, *o_128=(__m128i*)expandInput;
  __m128i tmp1, tmp2, tmp3, tmp4;
  __m128i BIT_MASK = _mm_set_epi8(  0b00000001,
                                    0b00000010,
                                    0b00000100,
                                    0b00001000,
                                    0b00010000,
                                    0b00100000,
                                    0b01000000,
                                    0b10000000,
                                    0b00000001,
                                    0b00000010,
                                    0b00000100,
                                    0b00001000,
                                    0b00010000,
                                    0b00100000,
                                    0b01000000,
                                    0b10000000);
165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201

#else
  __m256i *i_256=(__m256i *)input, *o_256=(__m256i*)expandInput;
  __m256i tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7;
  __m256i BIT_MASK = _mm256_set_epi8(  0b00000001,
				       0b00000010,
				       0b00000100,
				       0b00001000,
				       0b00010000,
				       0b00100000,
				       0b01000000,
				       0b10000000,
				       0b00000001,
				       0b00000010,
				       0b00000100,
				       0b00001000,
				       0b00010000,
				       0b00100000,
				       0b01000000,
				       0b10000000,
				       0b00000001,
				       0b00000010,
				       0b00000100,
				       0b00001000,
				       0b00010000,
				       0b00100000,
				       0b01000000,
				       0b10000000,
				       0b00000001,
				       0b00000010,
				       0b00000100,
				       0b00001000,
				       0b00010000,
				       0b00100000,
				       0b01000000,
				       0b10000000);
#endif
202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224
#elif defined(__arm__)
  uint8x16_t *i_128=(uint8x16_t *)input, *o_128=(uint8x16_t *)expandInput;
  uint8x16_t tmp1,tmp2;
  uint16x8_t tmp3;
  uint32x4_t tmp4;
  uint8x16_t and_tmp;
  uint8x16_t BIT_MASK = {  	    0b10000000,
                                    0b01000000,
                                    0b00100000,
                                    0b00010000,
                                    0b00001000,
                                    0b00000100,
                                    0b00000010,
                                    0b00000001,
                                    0b10000000,
                                    0b01000000,
                                    0b00100000,
                                    0b00010000,
                                    0b00001000,
                                    0b00000100,
                                    0b00000010,
                                    0b00000001};
#endif
225
 
226

227
#ifndef __AVX2__
228 229
  if ((n&15) > 0)
    loop++;
230 231 232 233 234
#else
  loop=n>>5;
  if ((n&31) > 0)
    loop++;
#endif
235

236

237
  for (i=0; i<loop ; i++ ) {
238 239 240
    // int cur_byte=i<<3; 
    // for (b=0;b<8;b++) 
    //   expandInput[cur_byte+b] = (input[i]&(1<<(7-b)))>>(7-b); 
241 242

#if defined(__x86_64__) || defined(__i386__)
243 244 245 246 247
#ifndef __AVX2__
    tmp1=_mm_load_si128(i_128++);       // tmp1 = B0,B1,...,B15
    tmp2=_mm_unpacklo_epi8(tmp1,tmp1);  // tmp2 = B0,B0,B1,B1,...,B7,B7
    tmp3=_mm_unpacklo_epi16(tmp2,tmp2); // tmp3 = B0,B0,B0,B0,B1,B1,B1,B1,B2,B2,B2,B2,B3,B3,B3,B3
    tmp4=_mm_unpacklo_epi32(tmp3,tmp3); // tmp4 - B0,B0,B0,B0,B0,B0,B0,B0,B1,B1,B1,B1,B1,B1,B1,B1
248 249
    *o_128++=_mm_cmpeq_epi8(_mm_and_si128(tmp4,BIT_MASK),BIT_MASK);

250
    tmp4=_mm_unpackhi_epi32(tmp3,tmp3); // tmp4 - B2,B2,B2,B2,B2,B2,B2,B2,B3,B3,B3,B3,B3,B3,B3,B3
251 252
    *o_128++=_mm_cmpeq_epi8(_mm_and_si128(tmp4,BIT_MASK),BIT_MASK);;

253 254
    tmp3=_mm_unpackhi_epi16(tmp2,tmp2); // tmp3 = B4,B4,B4,B4,B5,B5,B5,B5,B6,B6,B6,B6,B7,B7,B7,B7
    tmp4=_mm_unpacklo_epi32(tmp3,tmp3); // tmp4 - B4,B4,B4,B4,B4,B4,B4,B4,B5,B5,B5,B5,B5,B5,B5,B5
255 256
    *o_128++=_mm_cmpeq_epi8(_mm_and_si128(tmp4,BIT_MASK),BIT_MASK);;

257
    tmp4=_mm_unpackhi_epi32(tmp3,tmp3); // tmp4 - B6,B6,B6,B6,B6,B6,B6,B6,B7,B7,B7,B7,B7,B7,B7,B7
258 259
    *o_128++=_mm_cmpeq_epi8(_mm_and_si128(tmp4,BIT_MASK),BIT_MASK);;

260 261 262
    tmp2=_mm_unpackhi_epi8(tmp1,tmp1);  // tmp2 = B8,B8,B9,B9,...,B15,B15
    tmp3=_mm_unpacklo_epi16(tmp2,tmp2); // tmp3 = B8,B8,B8,B8,B9,B9,B9,B9,B10,B10,B10,B10,B11,B11,B11,B11
    tmp4=_mm_unpacklo_epi32(tmp3,tmp3); // tmp4 = B8,B8,B8,B8,B8,B8,B8,B8,B9,B9,B9,B9,B9,B9,B9,B9
263 264
    *o_128++=_mm_cmpeq_epi8(_mm_and_si128(tmp4,BIT_MASK),BIT_MASK);;

265
    tmp4=_mm_unpackhi_epi32(tmp3,tmp3); // tmp4 = B10,B10,B10,B10,B10,B10,B10,B10,B11,B11,B11,B11,B11,B11,B11,B11
266 267
    *o_128++=_mm_cmpeq_epi8(_mm_and_si128(tmp4,BIT_MASK),BIT_MASK);;

268 269
    tmp3=_mm_unpackhi_epi16(tmp2,tmp2); // tmp3 = B12,B12,B12,B12,B13,B13,B13,B13,B14,B14,B14,B14,B15,B15,B15,B15
    tmp4=_mm_unpacklo_epi32(tmp3,tmp3); // tmp4 = B12,B12,B12,B12,B12,B12,B12,B12,B13,B13,B13,B13,B13,B13,B13,B13
270 271
    *o_128++=_mm_cmpeq_epi8(_mm_and_si128(tmp4,BIT_MASK),BIT_MASK);;

272
    tmp4=_mm_unpackhi_epi32(tmp3,tmp3); // tmp4 = B14,B14,B14,B14,B14,B14,B14,B14,B15,B15,B15,B15,B15,B15,B15,B15
273
    *o_128++=_mm_cmpeq_epi8(_mm_and_si128(tmp4,BIT_MASK),BIT_MASK);;
274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344
#else
    tmp1=_mm256_load_si256(i_256++);       // tmp1 = B0,B1,...,B15,...,B31
    //print_bytes2("in",(uint8_t*)&tmp1);
    tmp2=_mm256_unpacklo_epi8(tmp1,tmp1);  // tmp2 = B0,B0,B1,B1,...,B7,B7,B16,B16,B17,B17,...,B23,B23
    tmp3=_mm256_unpacklo_epi16(tmp2,tmp2); // tmp3 = B0,B0,B0,B0,B1,B1,B1,B1,B2,B2,B2,B2,B3,B3,B3,B3,B16,B16,B16,B16,...,B19,B19,B19,B19
    tmp4=_mm256_unpacklo_epi32(tmp3,tmp3); // tmp4 - B0,B0,B0,B0,B0,B0,B0,B0,B1,B1,B1,B1,B1,B1,B1,B1,B16,B16...,B17..,B17
    tmp5=_mm256_unpackhi_epi32(tmp3,tmp3); // tmp5 - B2,B2,B2,B2,B2,B2,B2,B2,B3,B3,B3,B3,B3,B3,B3,B3,B18...,B18,B19,...,B19
    tmp6=_mm256_insertf128_si256(tmp4,_mm256_extracti128_si256(tmp5,0),1);  // tmp6 = B0 B1 B2 B3
    tmp7=_mm256_insertf128_si256(tmp5,_mm256_extracti128_si256(tmp4,1),0);  // tmp7 = B16 B17 B18 B19
    //print_bytes2("tmp2",(uint8_t*)&tmp2);
    //print_bytes2("tmp3",(uint8_t*)&tmp3);
    //print_bytes2("tmp4",(uint8_t*)&tmp4);
    //print_bytes2("tmp5",(uint8_t*)&tmp4);
    //print_bytes2("tmp6",(uint8_t*)&tmp6);
    //print_bytes2("tmp7",(uint8_t*)&tmp7);
    o_256[0]=_mm256_cmpeq_epi8(_mm256_and_si256(tmp6,BIT_MASK),BIT_MASK);
    //print_bytes2("out",(uint8_t*)o_256);
    o_256[4]=_mm256_cmpeq_epi8(_mm256_and_si256(tmp7,BIT_MASK),BIT_MASK);;
    //print_bytes2("out",(uint8_t*)(o_256+4));

    tmp3=_mm256_unpackhi_epi16(tmp2,tmp2); // tmp3 = B4,B4,B4,B4,B5,B5,B5,B5,B6,B6,B6,B6,B7,B7,B7,B7,B20,B20,B20,B20,...,B23,B23,B23,B23
    tmp4=_mm256_unpacklo_epi32(tmp3,tmp3); // tmp4 - B4,B4,B4,B4,B4,B4,B4,B4,B5,B5,B5,B5,B5,B5,B5,B5,B20,B20...,B21..,B21
    tmp5=_mm256_unpackhi_epi32(tmp3,tmp3); // tmp5 - B6,B6,B6,B6,B6,B6,B6,B6,B7,B7,B7,B7,B7,B7,B7,B7,B22...,B22,B23,...,B23
    tmp6=_mm256_insertf128_si256(tmp4,_mm256_extracti128_si256(tmp5,0),1);  // tmp6 = B4 B5 B6 B7
    tmp7=_mm256_insertf128_si256(tmp5,_mm256_extracti128_si256(tmp4,1),0);  // tmp7 = B20 B21 B22 B23
    //print_bytes2("tmp2",(uint8_t*)&tmp2);
    //print_bytes2("tmp3",(uint8_t*)&tmp3);
    //print_bytes2("tmp4",(uint8_t*)&tmp4);
    //print_bytes2("tmp5",(uint8_t*)&tmp4);
    //print_bytes2("tmp6",(uint8_t*)&tmp6);
    //print_bytes2("tmp7",(uint8_t*)&tmp7);
    o_256[1]=_mm256_cmpeq_epi8(_mm256_and_si256(tmp6,BIT_MASK),BIT_MASK);
    //print_bytes2("out",(uint8_t*)(o_256+1));
    o_256[5]=_mm256_cmpeq_epi8(_mm256_and_si256(tmp7,BIT_MASK),BIT_MASK);;
    //print_bytes2("out",(uint8_t*)(o_256+4));

    tmp2=_mm256_unpackhi_epi8(tmp1,tmp1);  // tmp2 = B8 B9 B10 B11 B12 B13 B14 B15 B25 B26 B27 B28 B29 B30 B31
    tmp3=_mm256_unpacklo_epi16(tmp2,tmp2); // tmp3 = B8,B9,B10,B11,B26,B27,B28,B29
    tmp4=_mm256_unpacklo_epi32(tmp3,tmp3); // tmp4 - B8,B9,B26,B27
    tmp5=_mm256_unpackhi_epi32(tmp3,tmp3); // tmp5 - B10,B11,B28,B29
    tmp6=_mm256_insertf128_si256(tmp4,_mm256_extracti128_si256(tmp5,0),1);  // tmp6 = B8 B9 B10 B11
    tmp7=_mm256_insertf128_si256(tmp5,_mm256_extracti128_si256(tmp4,1),0);  // tmp7 = B26 B27 B28 B29
    //print_bytes2("tmp2",(uint8_t*)&tmp2);
    //print_bytes2("tmp3",(uint8_t*)&tmp3);
    //print_bytes2("tmp4",(uint8_t*)&tmp4);
    //print_bytes2("tmp5",(uint8_t*)&tmp4);
    //print_bytes2("tmp6",(uint8_t*)&tmp6);
    //print_bytes2("tmp7",(uint8_t*)&tmp7);
    o_256[2]=_mm256_cmpeq_epi8(_mm256_and_si256(tmp6,BIT_MASK),BIT_MASK);
    //print_bytes2("out",(uint8_t*)(o_256+2));
    o_256[6]=_mm256_cmpeq_epi8(_mm256_and_si256(tmp7,BIT_MASK),BIT_MASK);;
    //print_bytes2("out",(uint8_t*)(o_256+4));

    tmp3=_mm256_unpackhi_epi16(tmp2,tmp2); // tmp3 = B12 B13 B14 B15 B28 B29 B30 B31
    tmp4=_mm256_unpacklo_epi32(tmp3,tmp3); // tmp4 = B12 B13 B28 B29
    tmp5=_mm256_unpackhi_epi32(tmp3,tmp3); // tmp5 = B14 B15 B30 B31 
    tmp6=_mm256_insertf128_si256(tmp4,_mm256_extracti128_si256(tmp5,0),1);  // tmp6 = B12 B13 B14 B15 
    tmp7=_mm256_insertf128_si256(tmp5,_mm256_extracti128_si256(tmp4,1),0);  // tmp7 = B28 B29 B30 B31
    //print_bytes2("tmp2",(uint8_t*)&tmp2);
    //print_bytes2("tmp3",(uint8_t*)&tmp3);
    //print_bytes2("tmp4",(uint8_t*)&tmp4);
    //print_bytes2("tmp5",(uint8_t*)&tmp4);
    //print_bytes2("tmp6",(uint8_t*)&tmp6);
    //print_bytes2("tmp7",(uint8_t*)&tmp7);
    o_256[3]=_mm256_cmpeq_epi8(_mm256_and_si256(tmp6,BIT_MASK),BIT_MASK);
    //print_bytes2("out",(uint8_t*)(o_256+3));
    o_256[7]=_mm256_cmpeq_epi8(_mm256_and_si256(tmp7,BIT_MASK),BIT_MASK);;
    //print_bytes2("out",(uint8_t*)(o_256+7));

    o_256+=8;
#endif
345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419
#elif defined(__arm__)
    tmp1=vld1q_u8((uint8_t*)i_128);
    //print_bytes("tmp1:",(uint8_t*)&tmp1);

    uint8x16x2_t temp1 =  vzipq_u8(tmp1,tmp1);
    tmp2 = temp1.val[0];

    uint16x8x2_t temp2 =  vzipq_u16((uint16x8_t)tmp2,(uint16x8_t)tmp2);
    tmp3 = temp2.val[0];

    uint32x4x2_t temp3 =  vzipq_u32((uint32x4_t)tmp3,(uint32x4_t)tmp3);
    tmp4 = temp3.val[0];
    //print_bytes("tmp4:",(uint8_t*)&tmp4);

    *o_128++=vceqq_u8(vandq_u8((uint8x16_t)tmp4,BIT_MASK),BIT_MASK);    //1
    //print_bytes("o:",(uint8_t*)(o_128-1));

    tmp4 = temp3.val[1];
    //print_bytes("tmp4:",(uint8_t*)&tmp4);

    *o_128++=vceqq_u8(vandq_u8((uint8x16_t)tmp4,BIT_MASK),BIT_MASK);    //2
    //print_bytes("o:",(uint8_t*)(o_128-1));

    tmp3 = temp2.val[1];
    temp3 =  vzipq_u32((uint32x4_t)tmp3,(uint32x4_t)tmp3);
    tmp4 = temp3.val[0];
    //print_bytes("tmp4:",(uint8_t*)&tmp4);

    *o_128++=vceqq_u8(vandq_u8((uint8x16_t)tmp4,BIT_MASK),BIT_MASK);    //3
    //print_bytes("o:",(uint8_t*)(o_128-1));

    tmp4 = temp3.val[1];
    //print_bytes("tmp4:",(uint8_t*)&tmp4);

    *o_128++=vceqq_u8(vandq_u8((uint8x16_t)tmp4,BIT_MASK),BIT_MASK);    //4
    //and_tmp = vandq_u8((uint8x16_t)tmp4,BIT_MASK); print_bytes("and:",and_tmp); 
    //print_bytes("o:",(uint8_t*)(o_128-1));


    temp1 =  vzipq_u8(tmp1,tmp1);
    tmp2 = temp1.val[1];
    temp2 =  vzipq_u16((uint16x8_t)tmp2,(uint16x8_t)tmp2);
    tmp3 = temp2.val[0];
    temp3 =  vzipq_u32((uint32x4_t)tmp3,(uint32x4_t)tmp3);
    tmp4 = temp3.val[0];
    //print_bytes("tmp4:",(uint8_t*)&tmp4);

    *o_128++=vceqq_u8(vandq_u8((uint8x16_t)tmp4,BIT_MASK),BIT_MASK);    //5
    //print_bytes("o:",(uint8_t*)(o_128-1));

    tmp4 = temp3.val[1];
    //print_bytes("tmp4:",(uint8_t*)&tmp4);

    *o_128++=vceqq_u8(vandq_u8((uint8x16_t)tmp4,BIT_MASK),BIT_MASK);    //6
    //print_bytes("o:",(uint8_t*)(o_128-1));


    temp2 =  vzipq_u16((uint16x8_t)tmp2,(uint16x8_t)tmp2);
    tmp3 = temp2.val[1];
    temp3 =  vzipq_u32((uint32x4_t)tmp3,(uint32x4_t)tmp3);
    tmp4 = temp3.val[0];
    //print_bytes("tmp4:",(uint8_t*)&tmp4);

    *o_128++=vceqq_u8(vandq_u8((uint8x16_t)tmp4,BIT_MASK),BIT_MASK);    //7
    //print_bytes("o:",(uint8_t*)(o_128-1));

    tmp4 = temp3.val[1];
    //print_bytes("tmp4:",(uint8_t*)&tmp4);

    *o_128++=vceqq_u8(vandq_u8((uint8x16_t)tmp4,BIT_MASK),BIT_MASK);    //7
    //print_bytes("o:",(uint8_t*)(o_128-1));

    i_128++;
#endif
  }
420
  
421 422 423

  short * ptr_intl=base_interleaver;
#if defined(__x86_64) || defined(__i386__)
424
#ifndef __AVX2__
425
  __m128i tmp;
426 427 428 429 430
 uint16_t *systematic2_ptr=(uint16_t *) output;
#else
  __m256i tmp;
 uint32_t *systematic2_ptr=(uint32_t *) output;
#endif
431 432 433 434 435 436 437 438 439
#elif defined(__arm__)
  uint8x16_t tmp;
  const uint8_t __attribute__ ((aligned (16))) _Powers[16]= 
    { 1, 2, 4, 8, 16, 32, 64, 128, 1, 2, 4, 8, 16, 32, 64, 128 };

// Set the powers of 2 (do it once for all, if applicable)
  uint8x16_t Powers= vld1q_u8(_Powers);
  uint8_t *systematic2_ptr=(uint8_t *) output;
#endif
440
#ifndef __AVX2__
441
  int input_length_words=1+((n-1)>>1);
442
#else
443
  int input_length_words=1+((n-1)>>2);
444
#endif
445

446 447
  for ( i=0; i<  input_length_words ; i ++ ) {

448

449
#if defined(__x86_64__) || defined(__i386__)
450
#ifndef __AVX2__
451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],7);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],6);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],5);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],4);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],3);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],2);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],1);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],0);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],8+7);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],8+6);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],8+5);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],8+4);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],8+3);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],8+2);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],8+1);
    tmp=_mm_insert_epi8(tmp,expandInput[*ptr_intl++],8+0);
    *systematic2_ptr++=(unsigned short)_mm_movemask_epi8(tmp);
468 469 470 471 472 473 474 475 476
#else
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],7);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],6);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],5);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],4);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],3);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],2);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],1);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],0);
477

478 479 480 481 482 483 484 485
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],8+7);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],8+6);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],8+5);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],8+4);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],8+3);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],8+2);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],8+1);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],8+0);
486

487 488 489 490 491 492 493
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],16+7);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],16+6);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],16+5);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],16+4);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],16+3);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],16+2);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],16+1);
494 495
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],16+0);

496 497 498 499 500 501 502 503
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],24+7);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],24+6);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],24+5);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],24+4);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],24+3);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],24+2);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],24+1);
    tmp=_mm256_insert_epi8(tmp,expandInput[*ptr_intl++],24+0);
504

505 506
    *systematic2_ptr++=(unsigned int)_mm256_movemask_epi8(tmp);
#endif
507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559
#elif defined(__arm__)
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,7);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,6);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,5);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,4);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,3);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,2);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,1);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,0);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,8+7);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,8+6);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,8+5);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,8+4);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,8+3);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,8+2);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,8+1);
    tmp=vsetq_lane_u8(expandInput[*ptr_intl++],tmp,8+0);
// Compute the mask from the input
    uint64x2_t Mask= vpaddlq_u32(vpaddlq_u16(vpaddlq_u8(vandq_u8(tmp, Powers))));
    vst1q_lane_u8(systematic2_ptr++, (uint8x16_t)Mask, 0);
    vst1q_lane_u8(systematic2_ptr++, (uint8x16_t)Mask, 8);

#endif
  }

  return n;
}


/*
#define _mm_expand_si128(xmmx, out, bit_mask)   \
  {             \
   __m128i loc_mm;          \
   loc_mm=(xmmx);         \
   loc_mm=_mm_and_si128(loc_mm,bit_mask);   \
   out=_mm_cmpeq_epi8(loc_mm,bit_mask);   \
  }
*/

void threegpplte_turbo_encoder(unsigned char *input,
                               unsigned short input_length_bytes,
                               unsigned char *output,
                               unsigned char F,
                               unsigned short interleaver_f1,
                               unsigned short interleaver_f2)
{

  int i;
  unsigned char *x;
  unsigned char state0=0,state1=0;
  unsigned short input_length_bits = input_length_bytes<<3;
  short * base_interleaver;

560
  if (  all_treillis_initialized == 0 ) {
561
    treillis_table_init();
562
  }
563 564 565 566 567 568 569 570 571 572 573 574

  // look for f1 and f2 precomputed interleaver values
  for (i=0; i < 188 && f1f2mat[i].nb_bits != input_length_bits; i++);

  if ( i == 188 ) {
    printf("Illegal frame length!\n");
    return;
  } else {
    base_interleaver=il_tb+f1f2mat[i].beg_index;
  }


575
  unsigned char systematic2[768] __attribute__((aligned(32)));
576

577 578 579 580 581 582 583 584 585 586 587 588 589
  interleave_compact_byte(base_interleaver,input,systematic2,input_length_bytes);

#if defined(__x86_64__) || defined(__i386__)
  __m64 *ptr_output=(__m64*) output;
#elif defined(__arm__)
  uint8x8_t *ptr_output=(uint8x8_t*)output; 
#endif
  unsigned char cur_s1, cur_s2;
  int code_rate;

  for ( state0=state1=i=0 ; i<input_length_bytes; i++ ) {
    cur_s1=input[i];
    cur_s2=systematic2[i];
590

591 592
    for ( code_rate=0; code_rate<3; code_rate++) {
#if defined(__x86_64__) || defined(__i386__)
593 594 595 596 597
      /*
       *ptr_output++ = _mm_add_pi8(all_treillis[state0][cur_s1].systematic_64[code_rate],
       _mm_add_pi8(all_treillis[state0][cur_s1].parity1_64[code_rate],
	 all_treillis[state1][cur_s2].parity2_64[code_rate]));
	*/
598

599 600 601 602
      *ptr_output++ = _mm_add_pi8(all_treillis[state0][cur_s1].systematic_andp1_64[code_rate],
				  all_treillis[state1][cur_s2].parity2_64[code_rate]);
	
	
603
#elif defined(__arm__)
604
	*ptr_output++ = vadd_u8(all_treillis[state0][cur_s1].systematic_andp1_64[code_rate],
605
				all_treillis[state0][cur_s1].parity2_64[code_rate]);
606
#endif
607 608 609 610
      }
      
      state0=all_treillis[state0][cur_s1].exit_state;
      state1=all_treillis[state1][cur_s2].exit_state;
611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660
  }

  x=output+(input_length_bits*3);

  // Trellis termination
  threegpplte_rsc_termination(&x[0],&x[1],&state0);
#ifdef DEBUG_TURBO_ENCODER
  printf("term: x0 %d, x1 %d, state0 %d\n",x[0],x[1],state0);
#endif //DEBUG_TURBO_ENCODER

  threegpplte_rsc_termination(&x[2],&x[3],&state0);
#ifdef DEBUG_TURBO_ENCODER
  printf("term: x0 %d, x1 %d, state0 %d\n",x[2],x[3],state0);
#endif //DEBUG_TURBO_ENCODER

  threegpplte_rsc_termination(&x[4],&x[5],&state0);
#ifdef DEBUG_TURBO_ENCODER
  printf("term: x0 %d, x1 %d, state0 %d\n",x[4],x[5],state0);
#endif //DEBUG_TURBO_ENCODER

  threegpplte_rsc_termination(&x[6],&x[7],&state1);

#ifdef DEBUG_TURBO_ENCODER
  printf("term: x0 %d, x1 %d, state1 %d\n",x[6],x[7],state1);
#endif //DEBUG_TURBO_ENCODER
  threegpplte_rsc_termination(&x[8],&x[9],&state1);
#ifdef DEBUG_TURBO_ENCODER
  printf("term: x0 %d, x1 %d, state1 %d\n",x[8],x[9],state1);
#endif //DEBUG_TURBO_ENCODER
  threegpplte_rsc_termination(&x[10],&x[11],&state1);

#ifdef DEBUG_TURBO_ENCODER
  printf("term: x0 %d, x1 %d, state1 %d\n",x[10],x[11],state1);
#endif //DEBUG_TURBO_ENCODER
#if defined(__x86_64__) || defined(__i386__)
  _mm_empty();
  _m_empty();
#endif
}



#ifdef TC_MAIN
#define INPUT_LENGTH 20 
#define F1 21
#define F2 120

int main(int argc,char **argv)
{

661
  unsigned char input[INPUT_LENGTH+32],state,state2;
662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685
  unsigned char output[12+(3*(INPUT_LENGTH<<3))],x,z;
  int i;
  unsigned char out;

  for (state=0; state<8; state++) {
    for (i=0; i<2; i++) {
      state2=state;
      out = threegpplte_rsc(i,&state2);
      printf("State (%d->%d) : (%d,%d)\n",state,state2,i,out);
    }
  }

  printf("\n");

  for (state=0; state<8; state++) {

    state2=state;
    threegpplte_rsc_termination(&x,&z,&state2);
    printf("Termination: (%d->%d) : (%d,%d)\n",state,state2,x,z);
  }

  memset((void*)input,0,INPUT_LENGTH+16);
  for (i=0; i<INPUT_LENGTH; i++) {
    input[i] = i*219;
686
    printf("Input %d : %d\n",i,input[i]);
687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704
  }

  threegpplte_turbo_encoder(&input[0],
                            INPUT_LENGTH,
                            &output[0],
                            0,
                            F1,
                            F2);


  for (i=0;i<12+(INPUT_LENGTH*24);i++)
    printf("%d",output[i]);
  printf("\n");

  return(0);
}

#endif // MAIN