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How to read a Bit from a Byte ?

Respectable colleagues,

how to read a value of a BIT from value of a BYTE variable in Keil C ?

For example:
X=(Byte1.Bit7*4)+(Byte1.Bit6*2)

Thanks in advance.

With best regards,

Dragan Kujovic

Parents

0 Andrew Neil over 24 years ago in reply to Bert Sesam

Don't forget those &ltpre&gt and &lt/pre&gt tags when posting code:

// main.h

#define OUTPUT 1
#define INPUT  0

#define HIGH 1
#define LOW  0

sfrbit P_TEST  _atbit(P2,10);
sfrbit DP_TEST _atbit(DP2,10);

//main.c

void main( void )
{
   DP_TEST = OUTPUT;
   P_TEST  = HIGH;
   _nop();
   P_TEST  = LOW;

   DP_TEST = INPUT;
   if (P_TEST == HIGH) 
   {
      /* do stuff */
   }
}

Reply

0 Andrew Neil over 24 years ago in reply to Bert Sesam

Don't forget those &ltpre&gt and &lt/pre&gt tags when posting code:

// main.h

#define OUTPUT 1
#define INPUT  0

#define HIGH 1
#define LOW  0

sfrbit P_TEST  _atbit(P2,10);
sfrbit DP_TEST _atbit(DP2,10);

//main.c

void main( void )
{
   DP_TEST = OUTPUT;
   P_TEST  = HIGH;
   _nop();
   P_TEST  = LOW;

   DP_TEST = INPUT;
   if (P_TEST == HIGH) 
   {
      /* do stuff */
   }
}

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