mpihelp_add_n

Name:mpihelp_add_n

Proto:mpi_limb_t mpihelp_add_n(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_ptr_t s2_ptr, mpi_size_t size)

Type:mpi_limb_t

Parameter:

Type	Parameter	Name
mpi_ptr_t	res_ptr
mpi_ptr_t	s1_ptr
mpi_ptr_t	s2_ptr
mpi_size_t	size

29

j = -size

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s1_ptr -= j

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s2_ptr -= j

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res_ptr -= j

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cy = 0

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Do

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y = s2_ptr[j]

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x = s1_ptr[j]

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y += cy

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cy = y < cy

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y += x

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cy += y < x

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res_ptr[j] = y

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When ++j cycle

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Return cy

**Caller**
Name	Describe
mpihelp_divrem	Divide num (NP/NSIZE) by den (DP/DSIZE) and write* the NSIZE-DSIZE least significant quotient limbs at QP* and the DSIZE long remainder at NP. If QEXTRA_LIMBS is* non-zero, generate that many fraction bits and append them after the* other quotient limbs.
mul_n_basecase	Multiply the natural numbers u (pointed to by UP) and v (pointed to by VP),* both with SIZE limbs, and store the result at PRODP. 2 * SIZE limbs are* always stored. Return the most significant limb.* Argument constraints:* 1
mul_n
mpih_sqr_n_basecase
mpih_sqr_n
mpihelp_mul_karatsuba_case
mpihelp_mul	Multiply the natural numbers u (pointed to by UP, with USIZE limbs)* and v (pointed to by VP, with VSIZE limbs), and store the result at* PRODP. USIZE + VSIZE limbs are always stored, but if the input* operands are normalized

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