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| /* logic_box_b.c
lundi 12 Avril 2013 05:55:38
********************************
********************************
*****************************************************************************
* commande compile : gcc -std=c99 -Wall logic_box_b.c -o logic_box_b *
* commande execute : ./logic_box_b *
*****************************************************************************
*/
#include <stdio.h>
#include <stdbool.h>
void oscilateur_1bits ( bool *aaa, size_t compt );
void oscilateur_2bits ( bool *aaa, bool *bbb, size_t compt );
bool YES ( bool aaa ); /* Buffer */
bool NOT ( bool aaa ); /* Negation */
bool AND ( bool aaa, bool bbb); /* Conjontion */
bool NAND ( bool aaa, bool bbb);
bool OR ( bool aaa, bool bbb); /* Disjonction */
bool NOR ( bool aaa, bool bbb);
bool XOR ( bool aaa, bool bbb);
bool XNOR ( bool aaa, bool bbb); /* coincidence, identité */
bool TAU ( bool aaa, bool bbb); /* Tautologie */
bool CTR ( bool aaa, bool bbb); /* Contradiction */
int main (void)
{
const char ligne[] = "----------------\n";
size_t compt = 0;
bool aaa = false;
bool bbb = false;
printf ( "\n" );
for ( compt =0; compt < 4; ++compt )
{
printf ( "%s", ligne );
oscilateur_2bits ( &aaa, &bbb, compt );
printf ( "| %d | %d | %d |\n", aaa, bbb, NAND ( aaa, bbb ) );
}
for ( compt =0; compt < 2; ++compt )
{
printf ( "%s", ligne );
oscilateur_1bits ( &aaa, compt );
printf ( "| %d | %d |\n", aaa ,YES ( aaa ) );
}
printf ( "%s", ligne );
return 0;
}
/********************************/
/****************/
void oscilateur_1bits ( bool *aaa, size_t compt )
{
compt %= 2;
if ( compt == 1 )
*aaa = TAU ( aaa, aaa );
if ( compt == 0 )
*aaa = CTR ( aaa, aaa );
return ;
}
/****************/
void oscilateur_2bits ( bool *aaa, bool *bbb, size_t compt )
{
compt %= 4;
if ( compt == 3 )
*aaa = *bbb = TAU ( aaa, bbb );
if ( compt == 2 )
{
*aaa = CTR ( aaa, bbb );
*bbb = TAU ( aaa, bbb );
}
if ( compt == 1 )
{
*aaa = TAU ( aaa, bbb );
*bbb = CTR ( aaa, bbb );
}
if ( compt == 0 )
*aaa = *bbb = CTR ( aaa, bbb );
return ;
}
/****************/
bool YES ( bool aaa )
{
printf ( "| a | YES |\n" );
return aaa;
}
/****************/
bool NOT ( bool aaa )
{
printf ( "| a | NOT |\n" );
return !aaa;
}
/****************/
bool AND ( bool aaa, bool bbb)
{
printf ( "| a | b | AND |\n" );
return aaa && bbb;
}
/****************/
bool NAND ( bool aaa, bool bbb)
{
printf ( "| a | b | NAND |\n" );
return !(aaa && bbb);
}
/****************/
bool OR ( bool aaa, bool bbb)
{
printf ( "| a | b | OR |\n" );
return aaa || bbb;
}
/****************/
bool NOR ( bool aaa, bool bbb)
{
printf ( "| a | b | NOR |\n" );
return !(aaa || bbb);
}
/****************/
bool XOR ( bool aaa, bool bbb)
{
printf ( "| a | b | XOR |\n" );
return (((!aaa) && bbb) || (aaa && (!bbb)));
}
/****************/
bool XNOR ( bool aaa, bool bbb)
{
printf ( "| a | b | XNOR |\n" );
return ((aaa && bbb) || ((!aaa) && (!bbb)));
}
/****************/
/****************/
bool TAU ( bool aaa, bool bbb) /* (A NAND B) OR (A AND B) */
{
/*printf ( "| a | b | TAU |\n" );*/
return ( aaa && bbb ) || !( aaa && bbb );
}
/****************/
bool CTR ( bool aaa, bool bbb) /* (A OR B) AND (A NOR B) */
{
/*printf ( "| a | b | CTR |\n" );*/
return ( aaa || bbb ) && !( aaa || bbb );
}
/****************/
/****************/
/****************/ |
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