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- #ifndef G10_MPI_INLINE_H
- #define G10_MPI_INLINE_H
- #ifndef G10_MPI_INLINE_DECL
- #define G10_MPI_INLINE_DECL static inline
- #endif
- G10_MPI_INLINE_DECL mpi_limb_t
- mpihelp_add_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
- mpi_size_t s1_size, mpi_limb_t s2_limb)
- {
- mpi_limb_t x;
- x = *s1_ptr++;
- s2_limb += x;
- *res_ptr++ = s2_limb;
- if (s2_limb < x) {
- while (--s1_size) {
- x = *s1_ptr++ + 1;
- *res_ptr++ = x;
- if (x)
- goto leave;
- }
- return 1;
- }
- leave:
- if (res_ptr != s1_ptr) {
- mpi_size_t i;
- for (i = 0; i < s1_size - 1; i++)
- res_ptr[i] = s1_ptr[i];
- }
- return 0;
- }
- G10_MPI_INLINE_DECL mpi_limb_t
- mpihelp_add(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_size_t s1_size,
- mpi_ptr_t s2_ptr, mpi_size_t s2_size)
- {
- mpi_limb_t cy = 0;
- if (s2_size)
- cy = mpihelp_add_n(res_ptr, s1_ptr, s2_ptr, s2_size);
- if (s1_size - s2_size)
- cy = mpihelp_add_1(res_ptr + s2_size, s1_ptr + s2_size,
- s1_size - s2_size, cy);
- return cy;
- }
- G10_MPI_INLINE_DECL mpi_limb_t
- mpihelp_sub_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
- mpi_size_t s1_size, mpi_limb_t s2_limb)
- {
- mpi_limb_t x;
- x = *s1_ptr++;
- s2_limb = x - s2_limb;
- *res_ptr++ = s2_limb;
- if (s2_limb > x) {
- while (--s1_size) {
- x = *s1_ptr++;
- *res_ptr++ = x - 1;
- if (x)
- goto leave;
- }
- return 1;
- }
- leave:
- if (res_ptr != s1_ptr) {
- mpi_size_t i;
- for (i = 0; i < s1_size - 1; i++)
- res_ptr[i] = s1_ptr[i];
- }
- return 0;
- }
- G10_MPI_INLINE_DECL mpi_limb_t
- mpihelp_sub(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_size_t s1_size,
- mpi_ptr_t s2_ptr, mpi_size_t s2_size)
- {
- mpi_limb_t cy = 0;
- if (s2_size)
- cy = mpihelp_sub_n(res_ptr, s1_ptr, s2_ptr, s2_size);
- if (s1_size - s2_size)
- cy = mpihelp_sub_1(res_ptr + s2_size, s1_ptr + s2_size,
- s1_size - s2_size, cy);
- return cy;
- }
- #endif
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