xref: /gem5/src/systemc/tests/systemc/misc/v1.0/blv/blv.cpp

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/*****************************************************************************

  blv.cpp --

  Original Author: Martin Janssen, Synopsys, Inc., 2002-02-15

 *****************************************************************************/

/*****************************************************************************

  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
  changes you are making here.

      Name, Affiliation, Date:
  Description of Modification:

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//----------------------------------------------------------
// test the basic functionality of sc_bv<> and sc_lv<>
//----------------------------------------------------------
#include "systemc.h"
#include <time.h>
#include "isaac.h"

QTIsaac<8> rng;

template<class T>
void compare(int W)
{ // functionality verification
  sc_bv_base x(W);
  T st;
  // initialize
  for(int i=0; i<W; i++)
  {
    bool la = (rng.rand()&1) == 0;
    x[i] = la;
    st[i] = la;
  }
  if(st.to_string()!=x.to_string())
    cout<<"\nERROR: x= "<<x<<" st= "<<st<<"\n"<<
    "st="<<st<<"\nx="<<x<< endl;
  if( (int) st.xor_reduce()!= x.xor_reduce())
    cout<<"\nERROR: st.xor_reduce="<<(short)st.xor_reduce()<<"; x.xor_reduce="<<
    (short)x.xor_reduce()<<"\n"<<
    "st="<<st<<"\nx="<<x<< endl;
  if( (int) x.or_reduce()!=st.or_reduce())
     cout<<"\nERROR: st.or_reduce="<<(short)st.or_reduce()<<
     "; x.or_reduce="<<(short)x.or_reduce()<<"\n"<<
    "st="<<st<<"\nx="<<x<< endl;
  if( (int) x.and_reduce()!=st.and_reduce())
    cout<<"\nERROR: st.and_reduce="<<(short)st.and_reduce()<<
    "; x.and_reduce="<<(short)x.and_reduce()<<"\n"<<
    "st="<<st<<"\nx="<<x<< endl;

  if((st,st).to_string()!=(x,x).to_string())
    cout<<"\nERROR: st,st="<<(st,st)<<
    "; x,x="<<(x,x)<<"\n"<<
    "st="<<st<<"\nx="<<x<< endl;
  int first = (int) ( (double) W * ((double)rng.rand() / (double)0x7fffffff));
  int second = (int) ( (double) W * ((double)rng.rand() / (double)0x7fffffff));
  if(st.range(first,second).to_string()!=x.range(first,second).to_string())
    cout<<"st.range("<<first<<","<<second<<")="<<st.range(first,second)<<
    "; x.range("<<first<<","<<second<<")="<<x.range(first,second)<<"\n"<<
    "st="<<st<<"\nx="<<x<< endl;

  sc_bv_base bv(2*W);
  sc_bv_base xv(2*W);
  bv = (st,st);
  xv = (x,x);
  if(bv.to_string()!=xv.to_string())
    cout<<"\nERROR: bv(st,st)="<<bv<<"; xv(x,x)="<<xv<<"\n"<<
    "st="<<st<<"\nx="<<x<< endl;
  int Len=0;
  if(first>second)
    Len = first-second;
  else
    Len = second-first;
  sc_bv_base br(Len+1);
  sc_bv_base xr(Len+1);
  br = st.range(first,second);
  xr = x.range(first,second);
  if(br.to_string()!=xr.to_string())
  {
    cout<<"\nERROR: br("<<first<<","<<second<<")!= xr("<<first<<","<<second
        <<")" << endl;
    br = st.range(first,second);
    xr = x.range(first,second);
    cout<<"br="<<br.to_string()<<"  xr="<<xr.to_string()<<
    "st.range="<<st.range(first,second)<<"  x.range="<<x.range(first,second)<<
    "st="<<st<<"\nx="<<x<< endl;
  }

  // verify assignments
  long ra = rng.rand();
  x  = ra;
  st = ra;
  if(st.to_string()!=x.to_string())
    cout<<"\nERROR (assignment): x= "<<x<<" st= "<<st<<" original long="<<ra
        << endl;
}

int sc_main(int, char**)
{
  const int N = 2000;
  int Seed = rng.rand();
  cout<<"\nverifying sc_bv<"<<N<<">" << endl;
  try{
    for(int i=0; i<1000; i++)
      compare<sc_bv<N> >(N);
  }
  catch(...)
  {
    cout<<"Test failed due to exception in sc_bv. Seed = "<<Seed<< endl;
    throw;
  }
  try{
    cout<<"\nverifying sc_lv<"<<N<<">" << endl;
    for(int i=0; i<1000; i++)
      compare<sc_lv<N> >(N);
  }
  catch(...)
  {
    cout<<"Test failed due to exception in sc_lv. Seed = "<<Seed<< endl;
    throw;
  }

  return 0;
}