microcontroller - Why is my C program skipping over this if statement? -

i have c program writing in code composer studio.

#include <msp430.h>   /*  * main.c  */ int main(void) {     wdtctl = wdtpw | wdthold;    // stop watchdog timer      int r5_sw=0, r6_led=0, temp=0;      p1out = 0b00000000;     // mov.b    #00000000b,&p1out     p1dir = 0b11111111;     // mov.b    #11111111b,&p1dir     p2dir = 0b00000000;     // mov.b    #00000000b,&p2dir      while (1)     {         // read switches , save them in r5_sw     r5_sw = p2in;      // check read mode         if (r5_sw & bit0)           {             r6_led = r5_sw & (bit3 | bit4 | bit5); // copy pattern switches , mask             p1out = r6_led;            // send pattern out           }          // display rotation mode         else             {             r6_led = r5_sw & (bit3|bit4|bit5);             // check direction             if (r5_sw & bit1) {// rotate left                 r6_led << 1;             } else {                 r6_led >> 1;             }   // rotate right              // mask excessive bits of pattern , send out             r6_led &= 0xff;             // clear bits beyound byte when rotate not see garbage coming in                 p1out = r6_led;                  // check speed             if (r5_sw & bit2)   {__delay_cycles( 40000); }  //fast                 else            {__delay_cycles(100000); }  //slow          }     } } 

when gets if statment in debug mode

if (r5_sw & bit1) {// rotate left     r6_led << 1; } else {     r6_led >> 1; }   // rotate right 

it skips on it, doesn't run if or else block. @ point in code r5_sw 22 0010 0010 in binary r5_sw & bit1 should evaluate true. missing here?

if use operation << or >> without assigning result discarded. try this:

if (r5_sw & bit1) {// rotate left            r6_led = r6_led << 1;         } else {             r6_led = r6_led >> 1;         }   // rotate right 

or, brevity:

if (r5_sw & bit1) {// rotate left             r6_led <<= 1;         } else {             r6_led >>= 1;         }   // rotate right