函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\mpi\mpih-mul.c Create Date:2022-07-27 08:17:46
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：mul_n

函数原型：static void mul_n(mpi_ptr_t prodp, mpi_ptr_t up, mpi_ptr_t vp, mpi_size_t size, mpi_ptr_t tspace)

返回类型：void

参数：

类型参数名称
mpi_ptr_tprodp
mpi_ptr_tup
mpi_ptr_tvp
mpi_size_tsize
mpi_ptr_ttspace
98  如果size按位与1则
109  esize等于size减1
113  cy_limb等于mpihelp_addmul_1(prodp + esize, up, esize, vp[esize])
114  prodp[esize + esize]等于cy_limb
115  cy_limb等于mpihelp_addmul_1(prodp + esize, vp, size, up[esize])
116  prodp[esize + size]等于cy_limb
117  否则
133  hsize等于size右移1位
148  如果mpi比较大于等于0则
149  mpihelp_sub_n(prodp, up + hsize, up, hsize)
150  negflg等于0
151  否则
152  mpihelp_sub_n(prodp, up, up + hsize, hsize)
153  negflg等于1
155  如果mpi比较大于等于0则
156  mpihelp_sub_n(prodp + hsize, vp + hsize, vp, hsize)
157  negflg异或等于1
158  否则
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等于mpihelp_add_n(prodp + size, prodp + size, prodp + size + hsize, hsize)
175  如果negflg则cy减等于mpihelp_sub_n(prodp + hsize, prodp + hsize, tspace, size)
179  否则cy加等于mpihelp_add_n(prodp + hsize, prodp + hsize, tspace, size)
194  cy加等于mpihelp_add_n(prodp + hsize, prodp + hsize, tspace, size)
195  如果cy则mpihelp_add_1(prodp + hsize + size, prodp + hsize + size, hsize, cy)
199  Copy N limbs from S to D. (prodp, tspace, hsize)
200  cy等于mpihelp_add_n(prodp + hsize, prodp + hsize, tspace + hsize, hsize)
202  如果cy则mpihelp_add_1(prodp + size, prodp + size, size, 1)