Mercurial > dropbear

annotate tomsfastmath/src/sqr/fp_sqr_comba_6.c @ 644:ff5cc422ba40 dropbear-tfm tomsfastmath

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Somehow Makefile.in went missing
author Matt Johnston <matt@ucc.asn.au>
date Wed, 23 Nov 2011 18:11:51 +0700
parents a362b62d38b2
children
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643
a362b62d38b2 Add tomsfastmath from git rev bfa4582842bc3bab42e4be4aed5703437049502a
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parents:
diff changeset
1 #define TFM_DEFINES
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2 #include "fp_sqr_comba.c"
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3
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4 #ifdef TFM_SQR6
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5 void fp_sqr_comba6(fp_int *A, fp_int *B)
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6 {
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7 fp_digit *a, b[12], c0, c1, c2, sc0, sc1, sc2;
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8 #ifdef TFM_ISO
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9 fp_word tt;
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10 #endif
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11
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12 a = A->dp;
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13 COMBA_START;
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14
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15 /* clear carries */
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16 CLEAR_CARRY;
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17
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18 /* output 0 */
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19 SQRADD(a[0],a[0]);
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20 COMBA_STORE(b[0]);
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21
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22 /* output 1 */
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23 CARRY_FORWARD;
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24 SQRADD2(a[0], a[1]);
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25 COMBA_STORE(b[1]);
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26
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27 /* output 2 */
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28 CARRY_FORWARD;
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29 SQRADD2(a[0], a[2]); SQRADD(a[1], a[1]);
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30 COMBA_STORE(b[2]);
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31
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32 /* output 3 */
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33 CARRY_FORWARD;
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34 SQRADD2(a[0], a[3]); SQRADD2(a[1], a[2]);
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35 COMBA_STORE(b[3]);
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36
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37 /* output 4 */
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38 CARRY_FORWARD;
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39 SQRADD2(a[0], a[4]); SQRADD2(a[1], a[3]); SQRADD(a[2], a[2]);
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40 COMBA_STORE(b[4]);
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41
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42 /* output 5 */
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43 CARRY_FORWARD;
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44 SQRADDSC(a[0], a[5]); SQRADDAC(a[1], a[4]); SQRADDAC(a[2], a[3]); SQRADDDB;
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45 COMBA_STORE(b[5]);
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46
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47 /* output 6 */
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48 CARRY_FORWARD;
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49 SQRADD2(a[1], a[5]); SQRADD2(a[2], a[4]); SQRADD(a[3], a[3]);
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50 COMBA_STORE(b[6]);
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51
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52 /* output 7 */
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53 CARRY_FORWARD;
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54 SQRADD2(a[2], a[5]); SQRADD2(a[3], a[4]);
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55 COMBA_STORE(b[7]);
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56
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57 /* output 8 */
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58 CARRY_FORWARD;
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59 SQRADD2(a[3], a[5]); SQRADD(a[4], a[4]);
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60 COMBA_STORE(b[8]);
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61
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62 /* output 9 */
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63 CARRY_FORWARD;
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64 SQRADD2(a[4], a[5]);
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65 COMBA_STORE(b[9]);
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66
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67 /* output 10 */
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68 CARRY_FORWARD;
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69 SQRADD(a[5], a[5]);
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70 COMBA_STORE(b[10]);
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71 COMBA_STORE2(b[11]);
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72 COMBA_FINI;
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73
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74 B->used = 12;
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75 B->sign = FP_ZPOS;
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76 memcpy(B->dp, b, 12 * sizeof(fp_digit));
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77 memset(B->dp + 12, 0, (FP_SIZE - 12) * sizeof(fp_digit));
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78 fp_clamp(B);
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79 }
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80 #endif
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81
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82