60 ATTRIBUTE_WARN_UNUSED_RET static int _nn_cnd_add(int cnd, nn_t out, nn_src_t in1, nn_src_t in2,  in _nn_cnd_add()  argument
74 	if ((out != in1) && (out != in2)) {  in _nn_cnd_add()
75 		ret = nn_init(out, (u16)(loop_wlen * WORD_BYTES)); EG(ret, err);  in _nn_cnd_add()
77 		ret = nn_set_wlen(out, loop_wlen); EG(ret, err);  in _nn_cnd_add()
84 		out->val[i] = (word_t)(tmp + _carry);  in _nn_cnd_add()
85 		carry2 = (word_t)(out->val[i] < tmp);  in _nn_cnd_add()
119 int nn_cnd_add(int cnd, nn_t out, nn_src_t in1, nn_src_t in2)  in nn_cnd_add()  argument
124 	ret = _nn_cnd_add(cnd, out, in1, in2, &carry); EG(ret, err);  in nn_cnd_add()
127 	MUST_HAVE(((out->wlen != NN_MAX_WORD_LEN) || (!carry)), ret, err);  in nn_cnd_add()
129 	if (out->wlen != NN_MAX_WORD_LEN) {  in nn_cnd_add()
137 		out->val[out->wlen] = carry;  in nn_cnd_add()
138 		out->wlen = (u8)(out->wlen + carry);  in nn_cnd_add()
158 int nn_add(nn_t out, nn_src_t in1, nn_src_t in2)  in nn_add()  argument
160 	return nn_cnd_add(1, out, in1, in2);  in nn_add()
179 ATTRIBUTE_WARN_UNUSED_RET static int nn_add_word(nn_t out, nn_src_t in1, word_t w)  in nn_add_word()  argument
189 	if (out != in1) {  in nn_add_word()
190 		ret = nn_init(out, (u16)(n_wlen * WORD_BYTES)); EG(ret, err);  in nn_add_word()
192 		ret = nn_set_wlen(out, n_wlen); EG(ret, err);  in nn_add_word()
200 		out->val[i] = tmp;  in nn_add_word()
203 	MUST_HAVE(((out->wlen != NN_MAX_WORD_LEN) || (!carry)), ret, err);  in nn_add_word()
204 	if (out->wlen != NN_MAX_WORD_LEN) {  in nn_add_word()
212 		out->val[out->wlen] = carry;  in nn_add_word()
213 		out->wlen = (u8)(out->wlen + carry);  in nn_add_word()
231 int nn_inc(nn_t out, nn_src_t in1)  in nn_inc()  argument
233 	return nn_add_word(out, in1, WORD(1));  in nn_inc()
250 int nn_cnd_sub(int cnd, nn_t out, nn_src_t in1, nn_src_t in2)  in nn_cnd_sub()  argument
262 	if ((out != in1) && (out != in2)) {  in nn_cnd_sub()
263 		ret = nn_init(out, (u16)(loop_wlen * WORD_BYTES)); EG(ret, err);  in nn_cnd_sub()
265 		ret = nn_set_wlen(out, in1->wlen); EG(ret, err);  in nn_cnd_sub()
272 		out->val[i] = (word_t)(tmp - borrow);  in nn_cnd_sub()
273 		borrow2 = (word_t)(out->val[i] > tmp);  in nn_cnd_sub()
286 int nn_sub(nn_t out, nn_src_t in1, nn_src_t in2)  in nn_sub()  argument
288 	return nn_cnd_sub(1, out, in1, in2);  in nn_sub()
296 int nn_dec(nn_t out, nn_src_t in1)  in nn_dec()  argument
305 	ret = nn_set_wlen(out, n_wlen); EG(ret, err);  in nn_dec()
312 		out->val[i] = tmp;  in nn_dec()
339 static int _nn_mod_add(nn_t out, nn_src_t in1, nn_src_t in2, nn_src_t p)  in _nn_mod_add()  argument
350 	ret = nn_add(out, in1, in2); EG(ret, err);  in _nn_mod_add()
363 	ret = nn_set_wlen(out, (u8)(p->wlen + 1)); EG(ret, err);  in _nn_mod_add()
364 	ret = nn_cmp(out, p, &cmp); EG(ret, err);  in _nn_mod_add()
366 	ret = nn_cnd_sub(larger, out, out, p); EG(ret, err);  in _nn_mod_add()
367 	ret = nn_set_wlen(out, p->wlen);  in _nn_mod_add()
379 int nn_mod_add(nn_t out, nn_src_t in1, nn_src_t in2, nn_src_t p)  in nn_mod_add()  argument
383 	if(out == p){  in nn_mod_add()
388 		ret = _nn_mod_add(out, in1, in2, &p_cpy);  in nn_mod_add()
395 		ret = _nn_mod_add(out, in1, in2, p);  in nn_mod_add()
407 static int _nn_mod_inc(nn_t out, nn_src_t in1, nn_src_t p)  in _nn_mod_inc()  argument
416 	ret = nn_inc(out, in1); EG(ret, err);  in _nn_mod_inc()
417 	ret = nn_set_wlen(out, (u8)(p->wlen + 1)); EG(ret, err); /* see comment in nn_mod_add() */  in _nn_mod_inc()
418 	ret = nn_cmp(out, p, &cmp); EG(ret, err);  in _nn_mod_inc()
420 	ret = nn_cnd_sub(larger, out, out, p); EG(ret, err);  in _nn_mod_inc()
421 	ret = nn_set_wlen(out, p->wlen);  in _nn_mod_inc()
432 int nn_mod_inc(nn_t out, nn_src_t in1, nn_src_t p)  in nn_mod_inc()  argument
436 	if(out == p){  in nn_mod_inc()
441 		ret = _nn_mod_inc(out, in1, &p_cpy);  in nn_mod_inc()
448 		ret = _nn_mod_inc(out, in1, p);  in nn_mod_inc()
462 static int _nn_mod_sub(nn_t out, nn_src_t in1, nn_src_t in2, nn_src_t p)  in _nn_mod_sub()  argument
477 	if (in2 == out) {  in _nn_mod_sub()
488 	ret = nn_cnd_add(smaller, out, in1, p); EG(ret, err);  in _nn_mod_sub()
489 	ret = nn_set_wlen(out, (u8)(p->wlen + 1)); EG(ret, err);/* See Comment in nn_mod_add() */  in _nn_mod_sub()
490 	ret = nn_sub(out, out, in2_); EG(ret, err);  in _nn_mod_sub()
491 	ret = nn_set_wlen(out, p->wlen);  in _nn_mod_sub()
505 int nn_mod_sub(nn_t out, nn_src_t in1, nn_src_t in2, nn_src_t p)  in nn_mod_sub()  argument
509 	if(out == p){  in nn_mod_sub()
514 		ret = _nn_mod_sub(out, in1, in2, &p_cpy);  in nn_mod_sub()
521 		ret = _nn_mod_sub(out, in1, in2, p);  in nn_mod_sub()
533 static int _nn_mod_dec(nn_t out, nn_src_t in1, nn_src_t p)  in _nn_mod_dec()  argument
545 	ret = nn_cnd_add(iszero, out, in1, p); EG(ret, err);  in _nn_mod_dec()
546 	ret = nn_set_wlen(out, (u8)(p->wlen + 1)); EG(ret, err); /* See Comment in nn_mod_add() */  in _nn_mod_dec()
547 	ret = nn_dec(out, out); EG(ret, err);  in _nn_mod_dec()
548 	ret = nn_set_wlen(out, p->wlen);  in _nn_mod_dec()
559 int nn_mod_dec(nn_t out, nn_src_t in1, nn_src_t p)  in nn_mod_dec()  argument
563 	if(out == p){  in nn_mod_dec()
568 		ret = _nn_mod_dec(out, in1, &p_cpy);  in nn_mod_dec()
575 		ret = _nn_mod_dec(out, in1, p);  in nn_mod_dec()
592 int nn_mod_neg(nn_t out, nn_src_t in, nn_src_t p)  in nn_mod_neg()  argument
605 		ret = nn_init(out, 0); EG(ret, err);  in nn_mod_neg()
606 		ret = nn_zero(out); EG(ret, err);  in nn_mod_neg()
608 		ret = nn_sub(out, p, in); EG(ret, err);  in nn_mod_neg()