/************************************************* * Multiply/Add Algorithm Source File * * (C) 1999-2008 The Botan Project * *************************************************/ #include #include #include namespace Botan { extern "C" { /************************************************* * Multiply/Add Words * *************************************************/ word bigint_mul_add_words(word z[], const word x[], u32bit x_size, word y) { const u32bit blocks = x_size - (x_size % 8); word carry = 0; for(u32bit j = 0; j != blocks; j += 8) carry = word8_madd3(z + j, x + j, y, carry); for(u32bit j = blocks; j != x_size; ++j) z[j] = word_madd3(x[j], y, z[j], &carry); return carry; } } }