53     DWORD *z1;  in ECC_Double()  local
62     x1=p->x; y1=p->y; z1=p->z;  in ECC_Double()
65     multiprecision_mersenns_squa_mod(t1, z1, keyLength);  // t1=z1^2  in ECC_Double()
72     multiprecision_mersenns_mult_mod(z3, y1, z1, keyLength);  // z3=y1*z1  in ECC_Double()
101     DWORD *z1;  in ECC_Add()  local
105     x1=p->x; y1=p->y; z1=p->z;  in ECC_Add()
117     if (multiprecision_iszero(z1, keyLength))  in ECC_Add()
123     multiprecision_mersenns_squa_mod(t1, z1, keyLength);      // t1=z1^2  in ECC_Add()
124     multiprecision_mersenns_mult_mod(t2, z1, t1, keyLength);  // t2=t1*z1  in ECC_Add()
145     multiprecision_mersenns_mult_mod(z3, z1, t1, keyLength);  // z3=z1*t1  in ECC_Add()
147     multiprecision_mersenns_mult_mod(z1, y3, t1, keyLength);  // t4=t3*t1  in ECC_Add()
152     multiprecision_sub_mod(x3, x3, z1, keyLength);           // x3=x3-t4  in ECC_Add()
155     multiprecision_mersenns_mult_mod(z1, z1, y1, keyLength);  // t4=t4*t1  in ECC_Add()
156     multiprecision_sub_mod(y3, y3, z1, keyLength);  in ECC_Add()