ExtractCondensedIBLhits.h File Reference

Header file for utility functions shiftRight and DivideHITS. More...

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Functions
unsigned int	divideHits (unsigned int &sourceWord, const unsigned int startBit, const unsigned int endBit)
	Push bits from a sourceWord to a target word, returns true if successful.
int	divideHits (int &sourceWord, const unsigned int startBit, const unsigned int endBit)
unsigned int	shiftRight (unsigned int &number, const int shifting)
int	shiftRight (int &number, const int shifting)

Detailed Description

Header file for utility functions shiftRight and DivideHITS.

Author

Laura Franconi

Date

10 July 2013

Definition in file ExtractCondensedIBLhits.h.

Function Documentation

divideHits() [1/2]

int divideHits	(	int &	sourceWord,
		const unsigned int	startBit,
		const unsigned int	endBit )

Definition at line 53 of file ExtractCondensedIBLhits.cxx.

                                                                                         {
  int targetWord = shiftRight (sourceWord, startBit);    
  //     cout << "source Word: " <<hex <<  sourceWord << "\t"<< dec << "start bit: "<< startBit << "\t"<< "end bit: " << endBit << "\t";
     int length = endBit - startBit + 1;
     //     std::cout << "length: " << length;
     unsigned int mask = 0;
     switch (length)
       {
       case 8: mask = 0xFF; // mask for the tot bits in the hitword
     break;
       case 4: mask = 0xF; // mask for the row bits in the hitword
     break;
       }
     if (mask == 0) {
       std::cout << "error: length of the info is not correct " << std::endl;
     }
     targetWord &= mask;
     //std::cout << "   =>   after shifting & masking: "  << std::hex << targetWord<< std::dec << std::endl;
 
    return targetWord;
}

divideHits() [2/2]

unsigned int divideHits	(	unsigned int &	sourceWord,
		const unsigned int	startBit,
		const unsigned int	endBit )

Push bits from a sourceWord to a target word, returns true if successful.

Definition at line 28 of file ExtractCondensedIBLhits.cxx.

                                                                                                           {
  unsigned int targetWord = shiftRight (sourceWord, startBit);    
  //     cout << "source Word: " << std::hex <<  sourceWord << "\t"<< std::dec << "start bit: "<< startBit << "\t"<< "end bit: " << endBit << "\t";
     int length = endBit - startBit + 1;
     //     std::cout << "length: " << length;
     unsigned int mask = 0;
     switch (length)
       {
       case 7: mask = 0x7F; // mask for the column bits in the hitword
     break;
       case 8: mask = 0xFF; // mask for the tot bits in the hitword
     break;
       case 9: mask = 0x1FF; // mask for the row bits in the hitword
     break;
       }
     if (mask == 0) {
       std::cout << "error: length of the info is not correct " << std::endl;
     }
     targetWord &= mask;
     //std::cout << "   =>   after shifting & masking: "  << std::hex << targetWord<< std::dec << std::endl;
 
    return targetWord;
}

shiftRight() [1/2]

int shiftRight	(	int &	number,
		const int	shifting )

Definition at line 22 of file ExtractCondensedIBLhits.cxx.

                                               {
  return number >> shifting;
}

shiftRight() [2/2]

unsigned int shiftRight	(	unsigned int &	number,
		const int	shifting )

Definition at line 17 of file ExtractCondensedIBLhits.cxx.

                                                                 {
  return number >> shifting;
}