I am using a capture module to measure RPM with a PIC16F628A. It works very well, but if the motor isn't running there will be no pulse so I am stuck in an endless loop waiting for the pulse. I need to do other things on the pic, so this isn't good. Besides incrementing a value, how else can I add a failsafe to exit the loop?

Code:
Trash:
  If Capture = 0 then
    Goto Trash          'stuck in loop if no capture
  endif

  T1CON.0=1              'starts timer
  Capture=0               'trash first capture

CaptureLoop:
  If Capture = 0 then
    Goto CaptureLoop
  endif
T1Con.0=0  
period.LowByte=CCPR1L
period.HighByte=CCPR1H
In the CaptureLoop I can look for a timer1 overflow flag which would work, but the trash loop the timer isn't running, so that wouldn't work.