atmel studio 6 assembler example
stack pointer ldi r16, high(RAMEND) out SPH, r16 ldi r16, low(RAMEND) out SPL, r16 ; Set LED pin as output sbi DDRB, LED_PIN main: ; Turn LED on sbi PORTB, LED_PIN call delay ; Turn LED off cbi PORTB, LED_PIN call delay rjmp main ; Delay subroutine for approximately 500ms delay: ldi r18,