105 lines
2.2 KiB
C
105 lines
2.2 KiB
C
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#define TFM_DEFINES
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#include "fp_sqr_comba.c"
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#ifdef TFM_SQR8
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void fp_sqr_comba8(fp_int *A, fp_int *B)
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{
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fp_digit *a, b[16], c0, c1, c2, sc0, sc1, sc2;
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#ifdef TFM_ISO
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fp_word tt;
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#endif
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a = A->dp;
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COMBA_START;
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/* clear carries */
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CLEAR_CARRY;
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/* output 0 */
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SQRADD(a[0],a[0]);
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COMBA_STORE(b[0]);
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/* output 1 */
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CARRY_FORWARD;
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SQRADD2(a[0], a[1]);
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COMBA_STORE(b[1]);
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/* output 2 */
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CARRY_FORWARD;
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SQRADD2(a[0], a[2]); SQRADD(a[1], a[1]);
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COMBA_STORE(b[2]);
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/* output 3 */
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CARRY_FORWARD;
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SQRADD2(a[0], a[3]); SQRADD2(a[1], a[2]);
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COMBA_STORE(b[3]);
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/* output 4 */
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CARRY_FORWARD;
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SQRADD2(a[0], a[4]); SQRADD2(a[1], a[3]); SQRADD(a[2], a[2]);
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COMBA_STORE(b[4]);
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/* output 5 */
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CARRY_FORWARD;
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SQRADDSC(a[0], a[5]); SQRADDAC(a[1], a[4]); SQRADDAC(a[2], a[3]); SQRADDDB;
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COMBA_STORE(b[5]);
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/* output 6 */
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CARRY_FORWARD;
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SQRADDSC(a[0], a[6]); SQRADDAC(a[1], a[5]); SQRADDAC(a[2], a[4]); SQRADDDB; SQRADD(a[3], a[3]);
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COMBA_STORE(b[6]);
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/* output 7 */
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CARRY_FORWARD;
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SQRADDSC(a[0], a[7]); SQRADDAC(a[1], a[6]); SQRADDAC(a[2], a[5]); SQRADDAC(a[3], a[4]); SQRADDDB;
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COMBA_STORE(b[7]);
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/* output 8 */
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CARRY_FORWARD;
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SQRADDSC(a[1], a[7]); SQRADDAC(a[2], a[6]); SQRADDAC(a[3], a[5]); SQRADDDB; SQRADD(a[4], a[4]);
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COMBA_STORE(b[8]);
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/* output 9 */
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CARRY_FORWARD;
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SQRADDSC(a[2], a[7]); SQRADDAC(a[3], a[6]); SQRADDAC(a[4], a[5]); SQRADDDB;
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COMBA_STORE(b[9]);
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/* output 10 */
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CARRY_FORWARD;
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SQRADD2(a[3], a[7]); SQRADD2(a[4], a[6]); SQRADD(a[5], a[5]);
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COMBA_STORE(b[10]);
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/* output 11 */
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CARRY_FORWARD;
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SQRADD2(a[4], a[7]); SQRADD2(a[5], a[6]);
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COMBA_STORE(b[11]);
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/* output 12 */
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CARRY_FORWARD;
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SQRADD2(a[5], a[7]); SQRADD(a[6], a[6]);
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COMBA_STORE(b[12]);
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/* output 13 */
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CARRY_FORWARD;
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SQRADD2(a[6], a[7]);
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COMBA_STORE(b[13]);
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/* output 14 */
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CARRY_FORWARD;
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SQRADD(a[7], a[7]);
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COMBA_STORE(b[14]);
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COMBA_STORE2(b[15]);
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COMBA_FINI;
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B->used = 16;
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B->sign = FP_ZPOS;
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memcpy(B->dp, b, 16 * sizeof(fp_digit));
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fp_clamp(B);
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}
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#endif
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/* $Source: /cvs/libtom/tomsfastmath/src/sqr/fp_sqr_comba_8.c,v $ */
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/* $Revision: 1.2 $ */
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/* $Date: 2007/02/17 03:39:01 $ */
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