函数逻辑报告

函数名称：Shift U (pointed to by UP and USIZE digits long) CNT bits to the left* and store the USIZE least significant digits of the result at WP.* Return the bits shifted out from the most significant digit.* Argument constraints:* 1. 0 < CNT < BITS_PER_MP_LIMB* 2

函数原型：mpi_limb_t mpihelp_lshift(mpi_ptr_t wp, mpi_ptr_t up, mpi_size_t usize, unsigned int cnt)

返回类型：mpi_limb_t

参数：