2024-11-17, AVR-Code

.include "m8def.inc"

ldi r16, 0xff
out DDRD, r16

ldi r16, 0b01010101
out PORTD, r16

end: rjmp end

code 2:

.include "m8def.inc"

ldi r16, HIGH (RAMEND)
out SPH, r16
ldi r16, LOW (RAMEND)
out SPL, r16

ldi r16, 0xff
out DDRB, r16

ldi r16, 0xff
loop1:
com r16
out PORTB, r16
com r16
rcall sleep
dec r16
rjmp loop1


sleep:
push r17
push r16
ldi r17, 0xff
sleep_loop1:
ldi r16, 0xff
sleep_loop2:
dec r16
brne sleep_loop2
dec r17
brne sleep_loop1
pop r16
pop r17
ret

nicht ganz richtig:

.include "m8def.inc"

.org 0x000
rjmp RESET
.org INT0addr
rjmp Ext0
.org INT1addr
rjmp Ext1

RESET:
ldi r16, HIGH (RAMEND)
out SPH, r16
ldi r16, LOW (RAMEND)
out SPL, r16

ldi r16, 0xff
out DDRB, r16

ldi r16, 0x00
out DDRD, r16

    ldi r16, (1 << ISC01) | (1 << ISC11)
    out MCUCR, r16
    ldi r16, (1 << INT0) | (1 << INT1)
    out GICR, r16

sei

end: rjmp end

Ext1:
    ldi r16, 0xff
    out PORTB, r16
    reti
Ext0:
    ldi r16, 0x00
    out PORTB, r16
    reti