.include "m8def.inc"
.org 0x000
rjmp RESET
.org INT0addr
rjmp EXTINT0
.org INT1addr
rjmp EXTINT1
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
EXTINT0:
ldi r16, 0xff
out PORTB, r16
reti
EXTINT1:
ldi r16, 0x00
out PORTB, r16
reti
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