will this work for dedecting a held button?

[mister_e]

Ming thuang bing daaang zing YIIIHHHAAA

    ' PIC12f629
    ' Push-button attach to GPIO<3:0> between i/o and VCC
    '
    ' it assume you'd previously disable all analog stuff and MCLR pin    
    '
    aPushButton var byte
    PushButton  var byte
    Delay       var Word
    
Start:
      clear
      apushbutton=GPIO & $0F      ' read push-button
                                  ' keep only GPIO<3:0> bits
                                  '
      if apushbutton=0 then start ' no push button pressed, sit and spin
      pushbutton=apushbutton
      while (apushbutton!=0) 
             apushbutton=GPIO & $0F
             pause 10
             delay=delay+1
             wend
             
      pause 50 ' debounce delay       
      if DELAY<100 then ' if push button is press for less than 1 second
         Select case PushButton
                case 1
                     gosub PushButtonGPIO_0
                case 2
                     gosub PushButtonGPIO_1
                case 4
                     gosub PushButtonGPIO_2
                case 8
                     gosub PushButtonGPIO_3
                end select
         endif
      goto start

The above should work. There's probably tons of different way to do it but, this is the first interrupt/Assembler/InternalRegister adressing free comming example.