Is my C code to control stepper motor ok?

/* The program is designed to make a 200 step Unipolar Stepper Motor turn
 360 degrees once every second*/

#include<pic.h>
__CONFIG(XT & WDTDIS & UNPROTECT & MCLREN);
void pause (unsigned short usvalue);
void msecbase (void);
void step (unsigned char phase);
main()
{
      unsigned char counter = 0;
      
      PORTB = 0x00;
      TRISB = 0x00;
      
      while(1==1)
      {
         while(counter<=200)
         {
              step;          //Calls Step Function
              pause(5);      //Calls pause Function which pauses for 5 milli Sec
              counter++;     //increment counter by 1
              
         }     
           
         counter = 0;      //reset counter so while loop can start again
         
      }
}
void pause (unsigned short usvalue)//Calls the 1mS delay function usvalue times
{
     unsigned short x;
     
     for(x=0; x<=usvalue; x++)
     {
              msecbase();
     }
     
}
void msecbase (void)     //This function delays for about 1mS
{
     OPTION = 0x00000001;//sets the prescaler to 1:4
     TMR0 = 0xD;         //presets TMR0 overflow
     while(!T0IF);       //stay untill TMR0 overflow flag equals 1
     T0IF = 0;           //clears the TMR0 overflow flag
}

/* The step function is designed to activate step 1 when it is first called. 
   When it is called the second time, the phase variable would have been 
   incremented to 2, which activates step 2. The same for step 3, but at the
   end of step 4, the phase variable resets to 1, starting the proccess over.*/
void step (unsigned char phase)
{
     unsigned char phase = 1;
     
     switch (phase)
     {
            case 1:
                 PORTB = 160;//RB7 + RB5 go high
                 phase++;    //increments phase to 2
                 break;
            case 2:
                 PORTB = 96;//RB6 + RB5 go high
                 phase++;   //increments phase to 3
                 break;
            case 3:
                 PORTB = 80;//RB6 + RB4 go high
                 phase++;   //increments phase to 4
                 break;
            case 4:
                 PORTB = 144;//RB7 + RB4 go high
                 phase = 1;  //resets phase to 1
                 break;
                 
     }
     
}

void pause (unsigned short usvalue);
void msecbase (void);
void step (unsigned char phase);

void pause (unsigned short);
void msecbase (void);
void step (unsigned char);