nvhls::nvhls_t< N, B > Struct Template Reference

Definition of vendor agnostic integer data types. More...

#include <nvhls_int.h>

Detailed Description

template<unsigned int N, bool B = (N <= 64)>
struct nvhls::nvhls_t< N, B >

Definition of vendor agnostic integer data types.

Template Parameters

N	Bitwidth of integer

Overview

• Wrapper to unify use of different integer implementation and simplify use of ac_int, sc_int and sc_bigint types
• Contains nvuint_t and nvint_t typedefs that conditionally map to ac_int or sc_int types based on CFLAG
• Specifying CFLAG HLS_CATAPULT typedefs ac_int to nvint, otherwise typedefs sc_int to nvint
• nvint also supports conditional typedef of sc_int and sc_bigint depending on bitwidth
• Simple macros to declare integers are defined in nvhls_types.h

A Simple Example

#include <nvhls_int.h>
#include <nvhls_types.h>
const GLOBAL_CONST_WIDTH = 5;
...        
template <int N>
void myfunc() {
  nvhls::nvhls_t<5>::nvuint_t var1;  // Unsigned integer of width 5 
  nvhls::nvhls_t<3>::nvint_t var2;   // Signed integer of width 3 
  NVUINT5 var3;                      // Simplified unsigned integer of width 5 defined using macro
  NVINT3 var4;                       // Simplified signed integer of width 3 defined using macro
  NVUINTW(N) var5;                   // Simplified unsigned integer where width is template parameter
  NVINTW(N) var6;                    // Simplified signed integer where width is template parameter
  NVUINTC(GLOBAL_CONST_WIDTH) var7;  // Simplified unsigned integer where width is global constant 
  NVINTC(GLOBAL_CONST_WIDTH) var8;   // Simplified signed integer where width is global constant
}
...

Definition at line 336 of file nvhls_int.h.

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

• nvhls_int.h