microcontroller - PIC184550: Program seems to terminate at call function -

i'm writing program blink red, yellow, , green leds off , on match function of traffic light. however, when run in debugger , step through (i using mplab x ide), seems stop after calling function 'loop1'. value reflected in portd value should hold after completion of loop1, rather after completion of loop6. ideas?

 list p=18f4550, r=dec   #include <p18f4550.inc>   config lvp=off   config wdt=off   config mclre=off     config fosc = intoscio_ec        org 0x00      cblock 0  delay1:1  delay2:1  counter:1      endc    start:      clrf trisd      clrf portd      clrf counter      clrf delay1      clrf delay2      movlw 0x00    primaryloop:      call loop1      call loop2      call loop3      call loop4      call loop5      call loop6      goto primaryloop    loop1:      movlw b'00010010'      movwf portd      movlw 0x01      movwf counter      call delaymain      return  loop2:      movlw b'01000010'      movwf portd      movlw 0x05      movwf counter      call delaymain      return  loop3:      movlw b'00100010'      movwf portd      movlw 0x03      movwf counter      call delaymain      return  loop4:      movlw b'00010010'      movwf portd      movlw 0x01      movwf counter      call delaymain      return  loop5:      movlw b'01000010'      movwf portd      movlw 0x05      movwf counter      call delaymain      return  loop6:      movlw b'00100010'      movwf portd      movlw 0x03      movwf counter      call delaymain      return    delaymain:      decfsz delay1,1      goto delaymain      decfsz delay2,1      goto delaymain      decfsz counter,0,0      return        end

you're skipping return instruction in delaymain, causing execution go beyond program. rest of memory contains nop instructions, control continue until pc wraps around 0 , program restarts.

simply add missing goto (or bra) instruction after last decfsz , should second loop. need change destination of decfsz write register, or never finish when counter > 1.