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Fork of MiniTLS-GPL by
math/mul/fp_mul_comba_8.c
- Committer:
- MiniTLS
- Date:
- 2014-06-06
- Revision:
- 0:35aa5be3b78d
File content as of revision 0:35aa5be3b78d:
#define TFM_DEFINES #include "fp_mul_comba.c" #ifdef TFM_MUL8 void fp_mul_comba8(fp_int *A, fp_int *B, fp_int *C) { fp_digit c0, c1, c2, at[16]; memcpy(at, A->dp, 8 * sizeof(fp_digit)); memcpy(at+8, B->dp, 8 * sizeof(fp_digit)); COMBA_START; COMBA_CLEAR; /* 0 */ MULADD(at[0], at[8]); COMBA_STORE(C->dp[0]); /* 1 */ COMBA_FORWARD; MULADD(at[0], at[9]); MULADD(at[1], at[8]); COMBA_STORE(C->dp[1]); /* 2 */ COMBA_FORWARD; MULADD(at[0], at[10]); MULADD(at[1], at[9]); MULADD(at[2], at[8]); COMBA_STORE(C->dp[2]); /* 3 */ COMBA_FORWARD; MULADD(at[0], at[11]); MULADD(at[1], at[10]); MULADD(at[2], at[9]); MULADD(at[3], at[8]); COMBA_STORE(C->dp[3]); /* 4 */ COMBA_FORWARD; MULADD(at[0], at[12]); MULADD(at[1], at[11]); MULADD(at[2], at[10]); MULADD(at[3], at[9]); MULADD(at[4], at[8]); COMBA_STORE(C->dp[4]); /* 5 */ COMBA_FORWARD; MULADD(at[0], at[13]); MULADD(at[1], at[12]); MULADD(at[2], at[11]); MULADD(at[3], at[10]); MULADD(at[4], at[9]); MULADD(at[5], at[8]); COMBA_STORE(C->dp[5]); /* 6 */ COMBA_FORWARD; MULADD(at[0], at[14]); MULADD(at[1], at[13]); MULADD(at[2], at[12]); MULADD(at[3], at[11]); MULADD(at[4], at[10]); MULADD(at[5], at[9]); MULADD(at[6], at[8]); COMBA_STORE(C->dp[6]); /* 7 */ COMBA_FORWARD; MULADD(at[0], at[15]); MULADD(at[1], at[14]); MULADD(at[2], at[13]); MULADD(at[3], at[12]); MULADD(at[4], at[11]); MULADD(at[5], at[10]); MULADD(at[6], at[9]); MULADD(at[7], at[8]); COMBA_STORE(C->dp[7]); /* 8 */ COMBA_FORWARD; MULADD(at[1], at[15]); MULADD(at[2], at[14]); MULADD(at[3], at[13]); MULADD(at[4], at[12]); MULADD(at[5], at[11]); MULADD(at[6], at[10]); MULADD(at[7], at[9]); COMBA_STORE(C->dp[8]); /* 9 */ COMBA_FORWARD; MULADD(at[2], at[15]); MULADD(at[3], at[14]); MULADD(at[4], at[13]); MULADD(at[5], at[12]); MULADD(at[6], at[11]); MULADD(at[7], at[10]); COMBA_STORE(C->dp[9]); /* 10 */ COMBA_FORWARD; MULADD(at[3], at[15]); MULADD(at[4], at[14]); MULADD(at[5], at[13]); MULADD(at[6], at[12]); MULADD(at[7], at[11]); COMBA_STORE(C->dp[10]); /* 11 */ COMBA_FORWARD; MULADD(at[4], at[15]); MULADD(at[5], at[14]); MULADD(at[6], at[13]); MULADD(at[7], at[12]); COMBA_STORE(C->dp[11]); /* 12 */ COMBA_FORWARD; MULADD(at[5], at[15]); MULADD(at[6], at[14]); MULADD(at[7], at[13]); COMBA_STORE(C->dp[12]); /* 13 */ COMBA_FORWARD; MULADD(at[6], at[15]); MULADD(at[7], at[14]); COMBA_STORE(C->dp[13]); /* 14 */ COMBA_FORWARD; MULADD(at[7], at[15]); COMBA_STORE(C->dp[14]); COMBA_STORE2(C->dp[15]); C->used = 16; C->sign = A->sign ^ B->sign; fp_clamp(C); COMBA_FINI; } #endif