27 	mpi_limb_t x;  in mpihelp_add_1()  local
29 	x = *s1_ptr++;  in mpihelp_add_1()
30 	s2_limb += x;  in mpihelp_add_1()
32 	if (s2_limb < x) {	/* sum is less than the left operand: handle carry */  in mpihelp_add_1()
34 			x = *s1_ptr++ + 1;	/* add carry */  in mpihelp_add_1()
35 			*res_ptr++ = x;	/* and store */  in mpihelp_add_1()
36 			if (x)	/* not 0 (no overflow): we can stop */  in mpihelp_add_1()
70 	mpi_limb_t x;  in mpihelp_sub_1()  local
72 	x = *s1_ptr++;  in mpihelp_sub_1()
73 	s2_limb = x - s2_limb;  in mpihelp_sub_1()
75 	if (s2_limb > x) {  in mpihelp_sub_1()
77 			x = *s1_ptr++;  in mpihelp_sub_1()
78 			*res_ptr++ = x - 1;  in mpihelp_sub_1()
79 			if (x)  in mpihelp_sub_1()