.include "m16def.inc"

ldi r16, low(RAMEND)
out SPL, r16
ldi r16, high(RAMEND)
out SPH, r16

ldi r16, 0xff
out DDRA, r16
ldi r16, 0xff
out PORTA, r16

_main_cycle:
    cbi PORTA, 0
    rcall _delay_125ms
    sbi PORTA, 0
    rcall _delay_125ms
    rjmp _main_cycle

_delay_125ms:
    ldi  R17, 0x09
_loop0:
    ldi  R18, 0xBC
_loop1:
    ldi  R19, 0xC4
_loop22:
    dec  R19
    brne _loop2
    dec  R18
    brne _loop1
    dec  R17
    brne _loop0
    ret