Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\mpi\mpih-mul.c Create Date:2022-07-28 07:19:09
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:mul_n

Proto:static void mul_n(mpi_ptr_t prodp, mpi_ptr_t up, mpi_ptr_t vp, mpi_size_t size, mpi_ptr_t tspace)

Type:void

Parameter:

TypeParameterName
mpi_ptr_tprodp
mpi_ptr_tup
mpi_ptr_tvp
mpi_size_tsize
mpi_ptr_ttspace
98  If size & 1 Then
109  esize = size - 1
113  cy_limb = mpihelp_addmul_1(prodp + esize, up, esize, vp[esize])
114  prodp[esize + esize] = cy_limb
115  cy_limb = mpihelp_addmul_1(prodp + esize, vp, size, up[esize])
116  prodp[esize + size] = cy_limb
117  Else
133  hsize = size >> 1
148  If Compare OP1_PTR/OP1_SIZE with OP2_PTR/OP2_SIZE.* There are no restrictions on the relative sizes of* the two arguments.* Return 1 if OP1 > OP2, 0 if they are equal, and -1 if OP1 < OP2. >= 0 Then
149  mpihelp_sub_n(prodp, up + hsize, up, hsize)
150  negflg = 0
151  Else
152  mpihelp_sub_n(prodp, up, up + hsize, hsize)
153  negflg = 1
155  If Compare OP1_PTR/OP1_SIZE with OP2_PTR/OP2_SIZE.* There are no restrictions on the relative sizes of* the two arguments.* Return 1 if OP1 > OP2, 0 if they are equal, and -1 if OP1 < OP2. >= 0 Then
156  mpihelp_sub_n(prodp + hsize, vp + hsize, vp, hsize)
157  negflg ^= 1
158  Else
159  mpihelp_sub_n(prodp + hsize, vp, vp + hsize, hsize)
170  Copy N limbs from S to D. (prodp + hsize, prodp + size, hsize)
171  cy = mpihelp_add_n(prodp + size, prodp + size, prodp + size + hsize, hsize)
175  If negflg Then cy -= mpihelp_sub_n(prodp + hsize, prodp + hsize, tspace, size)
179  Else cy += mpihelp_add_n(prodp + hsize, prodp + hsize, tspace, size)
194  cy += mpihelp_add_n(prodp + hsize, prodp + hsize, tspace, size)
195  If cy Then mpihelp_add_1(prodp + hsize + size, prodp + hsize + size, hsize, cy)
199  Copy N limbs from S to D. (prodp, tspace, hsize)
200  cy = mpihelp_add_n(prodp + hsize, prodp + hsize, tspace + hsize, hsize)
202  If cy Then mpihelp_add_1(prodp + size, prodp + size, size, 1)