ExtractCondensedIBLhits.cxx File Reference

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

#include "ExtractCondensedIBLhits.h"
#include <iostream>

Include dependency graph for ExtractCondensedIBLhits.cxx:

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

Detailed Description

implementation file for utility functions shiftRight and DivideHITS

Author

Laura Franconi

Date

10 July 2013

Definition in file ExtractCondensedIBLhits.cxx.

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;
}