File:  [local] / rpl / src / operations_binaires.c
Revision 1.67: download - view: text, annotated - select for diffs - revision graph
Fri Jan 10 11:15:50 2020 UTC (4 years, 3 months ago) by bertrand
Branches: MAIN
CVS tags: rpl-4_1_32, HEAD
Modification du copyright.

    1: /*
    2: ================================================================================
    3:   RPL/2 (R) version 4.1.32
    4:   Copyright (C) 1989-2020 Dr. BERTRAND Joël
    5: 
    6:   This file is part of RPL/2.
    7: 
    8:   RPL/2 is free software; you can redistribute it and/or modify it
    9:   under the terms of the CeCILL V2 License as published by the french
   10:   CEA, CNRS and INRIA.
   11:  
   12:   RPL/2 is distributed in the hope that it will be useful, but WITHOUT
   13:   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   14:   FITNESS FOR A PARTICULAR PURPOSE.  See the CeCILL V2 License
   15:   for more details.
   16:  
   17:   You should have received a copy of the CeCILL License
   18:   along with RPL/2. If not, write to info@cecill.info.
   19: ================================================================================
   20: */
   21: 
   22: 
   23: #include "rpl-conv.h"
   24: 
   25: 
   26: /*
   27: ================================================================================
   28:   Routine renvoyant la longueur courante des entiers binaires
   29: ================================================================================
   30:   Entrées : structure sur l'état du processus
   31: --------------------------------------------------------------------------------
   32:   Sorties : longueur
   33: --------------------------------------------------------------------------------
   34:   Effets de bord : néant
   35: ================================================================================
   36: */
   37: 
   38: unsigned char
   39: longueur_entiers_binaires(struct_processus *s_etat_processus)
   40: {
   41:     unsigned char           longueur_binaire;
   42:     unsigned char           i;
   43:     unsigned char           j;
   44: 
   45:     longueur_binaire = 1;
   46:     j = 0x01;
   47: 
   48:     for(i = 0; i < 6; i++)
   49:     {
   50:         if (test_cfsf(s_etat_processus, (unsigned char) (37 + i)) == d_vrai)
   51:         {
   52:             longueur_binaire = (unsigned char) (longueur_binaire + j);
   53:         }
   54: 
   55:         j = (unsigned char) (j << 1);
   56:     }
   57: 
   58:     return(longueur_binaire);
   59: }
   60: 
   61: 
   62: /*
   63: ================================================================================
   64:   Routine renvoyant le masque sur les entiers binaires (longueur à tronquer)
   65: ================================================================================
   66:   Entrées : structure sur l'état du processus
   67: --------------------------------------------------------------------------------
   68:   Sorties : masque
   69: --------------------------------------------------------------------------------
   70:   Effets de bord : néant
   71: ================================================================================
   72: */
   73: 
   74: logical8
   75: masque_entiers_binaires(struct_processus *s_etat_processus)
   76: {
   77:     unsigned char               i;
   78:     unsigned char               longueur;
   79: 
   80:     logical8                    masque;
   81: 
   82:     longueur = longueur_entiers_binaires(s_etat_processus);
   83:     masque = 0;
   84: 
   85:     for(i = 0; i < longueur; i++)
   86:     {
   87:         masque |= (((logical8) 1) << i);
   88:     }
   89: 
   90:     return(masque);
   91: }
   92: 
   93: // vim: ts=4

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