1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 //*-- Author: Rachid Guernane (LPCCFd)
19 // DIMUON REGIONAL TRIGGER IMPLEMENTATION
20 // ENTRY ARE LOCAL BOARD RESPONSES
21 // OUTPUT IS 12-BIT WORD
22 // ALGORITHM IS SIMILAR TO THE GLOBAL ONE
24 #include "AliMUONRegionalTriggerBoard.h"
30 #include <Riostream.h>
32 ClassImp(AliMUONRegionalTriggerBoard)
34 //___________________________________________
35 AliMUONRegionalTriggerBoard::AliMUONRegionalTriggerBoard()
37 for (Int_t i=0; i<16; i++) fLocalResponse[i] = 0;
40 //___________________________________________
41 AliMUONRegionalTriggerBoard::AliMUONRegionalTriggerBoard(const char *name, Int_t a) : AliMUONTriggerBoard(name, a)
43 for (Int_t i=0; i<16; i++) fLocalResponse[i] = 0;
46 //___________________________________________
47 void AliMUONRegionalTriggerBoard::Response()
50 RESPONSE IS GIVEN FOLLOWING THE REGIONAL ALGORITHM
54 for (Int_t i=0;i<16;i++) t[i] = fLocalResponse[i] & fMask[i];
58 for (Int_t i=0;i<4;i++)
62 for (Int_t j=0;j<rank;j++)
64 UShort_t lthres = Algo(t[2*j],t[2*j+1],"LPT",i);
66 UShort_t hthres = Algo(t[2*j],t[2*j+1],"HPT",i); hthres <<= 4;
68 t[ip] = lthres | hthres;
76 fResponse = t[0]; // 8-bit [H4:L4]
79 //___________________________________________
80 UShort_t AliMUONRegionalTriggerBoard::Algo(UShort_t i, UShort_t j, char *thres, Int_t level)
82 // IMPLEMENTATION OF THE REGIONAL ALGORITHM
83 // SIMILAR TO THE GLOBAL ALGORITHM EXCEPT FOR THE
85 TBits a(8), b(8); a.Set(8,&i); b.Set(8,&j);
87 TBits trg1(2), trg2(2), trg(2);
89 if (!strcmp(thres,"LPT"))
93 trg1[0] = a[0]; trg1[1] = a[1];
94 trg2[0] = b[0]; trg2[1] = b[1];
98 trg1[0] = a[2]; trg1[1] = a[3];
99 trg2[0] = b[2]; trg2[1] = b[3];
106 trg1[0] = a[2]; trg1[1] = a[3];
107 trg2[0] = b[2]; trg2[1] = b[3];
111 trg1[0] = a[6]; trg1[1] = a[7];
112 trg2[0] = b[6]; trg2[1] = b[7];
116 TBits trgLS1(1), trgUS1(1), trgLS2(1), trgUS2(1), trgLS(1), trgUS(1);
120 trgLS1[0] = trgUS1[0] = trgLS2[0] = trgUS2[0] = 0;
124 if (!strcmp(thres,"LPT"))
126 trgLS1[0] = a[1]; trgUS1[0] = a[0];
127 trgLS2[0] = b[1]; trgUS2[0] = b[0];
131 trgLS1[0] = a[5]; trgUS1[0] = a[4];
132 trgLS2[0] = b[5]; trgUS2[0] = b[4];
136 trgLS[0] = ( trg1[0] & trg2[0] ) | ( trg1[1] & trg2[1] ) | trgLS1[0] | trgLS2[0];
137 trgUS[0] = ( trg1[0] & trg2[1] ) | ( trg1[1] & trg2[0] ) | trgUS1[0] | trgUS2[0];
139 trg[0] = trg1[0] | trg2[0];
140 trg[1] = trg1[1] | trg2[1];
155 //___________________________________________
156 void AliMUONRegionalTriggerBoard::Scan(Option_t*) const
159 SCAN LOCAL BOARD ENTRIES
161 for (Int_t i=0; i<16; i++)
164 b.Set(6,&fLocalResponse[i]);
166 cout << "Entry " << i << " is " << b << endl;
172 //___________________________________________
173 void AliMUONRegionalTriggerBoard::Mask(Int_t index, UShort_t mask)
176 if ( index>=0 && index < 16 )
182 AliError(Form("Index %d out of bounds (max %d)",index,16));
186 ClassImp(AliMUONRegionalTriggerBoard)