Fonction de calcul
fr

##
extract_bit_u8_MSB1

### Contenu du fichier

    #include "scicos_block4.h"
    #include <math.h>

    void extract_bit_u8_MSB1(scicos_block *block,int flag)
    {
       int i,maxim;
       unsigned char *y,*u,ref,n;
       int *ipar;
       y=Getuint8OutPortPtrs(block,1);
       u=Getuint8InPortPtrs(block,1);
       ipar=GetIparPtrs(block);
       maxim=8;
       ref=0;
       for(i=0;i<*ipar;i++)
           {n=(unsigned char)pow(2,maxim-1-i);
            ref=ref+n;}
       *y=(*u)&(ref);
       *y=*y>>(maxim-*ipar);
    }