.include "C:\appnotes\tn2313def.inc"

          .def temp = r16           ; регистр общего назначения
          .def c_time = r17         ; регистр для TIM_0
          .def incl = r18  
          
.cseg
.org0

;*********ВЕКТОРЫ ПРЕРЫВАНИЙ*********

rjmp RESET
reti
reti
reti
reti
reti
rjmp TIM_0
reti
reti
reti
reti 

;*********ПРОГРАММА*********

RESET:
          ldi temp,RamEnd
          out SPL,temp
          
          ldi temp,0b00010000
          out DDRB,temp
          
          ldi temp,(1<<TOIE0)
          out TIMSK,temp
          
          ldi incl,0b00010000

          ldi temp,0b00000100
          out TCCR0B,temp
          
          sei
          
;************************
Cykle:
          rjmp Cykle
;************************

TIM_0:    
          inc c_time
          cpi c_time,254
          breq Load
          
          reti

Load:     
          clr c_time

          cpi incl,0b00000000
          breq Includ
          
          clr incl
          rjmp Output
          
Includ:
          ldi incl,0b00010000
                    
Output:
          out PortB,incl
          
          
          reti