log2Ceil< n > Struct Template Reference

#include <nts_utils.hpp>

Public Types
enum

Detailed Description

template<uint64_t n>
struct log2Ceil< n >

A synthesizable version of the C++ log2ceil function.

Parameters

[in]

n

The input value to compute.

Returns

ceil(log(n)).

Usage: ap_uint<log2Ceil<N>::val> counter; #define NUM_BITS 8 #define CTRL_BITS LOG2_CEIL<NUM_BITS>::val+1

Definition at line 65 of file nts_utils.hpp.

Member Enumeration Documentation

anonymous enum

template<uint64_t n>

anonymous enum

Definition at line 74 of file nts_utils.hpp.

           {
          val = \
          n <=         0x1 ?  1 : \
          n <=         0x2 ?  1 : \
          n <=         0x4 ?  2 : \
          n <=         0x8 ?  3 : \
          n <=        0x10 ?  4 : \
          n <=        0x20 ?  5 : \
          n <=        0x40 ?  6 : \
          n <=        0x80 ?  7 : \
          n <=       0x100 ?  8 : \
          n <=       0x200 ?  9 : \
          n <=       0x400 ? 10 : \
          n <=       0x800 ? 11 : \
          n <=      0x1000 ? 12 : \
          n <=      0x2000 ? 13 : \
          n <=      0x4000 ? 14 : \
          n <=      0x8000 ? 15 : \
          n <=     0x10000 ? 16 : \
          n <=     0x20000 ? 17 : \
          n <=     0x40000 ? 18 : \
          n <=     0x80000 ? 19 : \
          n <=    0x100000 ? 20 : \
          n <=    0x200000 ? 21 : \
          n <=    0x400000 ? 22 : \
          n <=    0x800000 ? 23 : \
          n <=   0x1000000 ? 24 : \
          n <=   0x2000000 ? 25 : \
          n <=   0x4000000 ? 26 : \
          n <=   0x8000000 ? 27 : \
          n <=  0x10000000 ? 28 : \
          n <=  0x20000000 ? 29 : \
          n <=  0x40000000 ? 30 : \
          n <=  0x80000000 ? 31 : \
          n <= 0x100000000 ? 32 : \
          33
      };

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The documentation for this struct was generated from the following file:

• repos_for_Dox/cFDK/SRA/LIB/SHELL/LIB/hls/NTS/nts_utils.hpp