Datasheet

0x1F004 jmp EXT_INT1 ; IRQ1 Handler
... ... ... ;
0x1F036 jmp SPM_RDY ; SPM Ready Handler
;
0x1F03E RESET: ldi r16,high(RAMEND) ; Main program start
0x1F03F out SPH,r16 ; Set Stack Pointer to top of RAM
0x1F040 ldi r16,low(RAMEND)
0x1F041 out SPL,r16
0x1F042 sei ; Enable interrupts
0x1FO43 <instr> xxx
13.3. Register Description
13.3.1. Moving Interrupts Between Application and Boot Space
The MCU Control Register controls the placement of the Interrupt Vector table.
Atmel ATmega644A [DATASHEET]
Atmel-42716C-ATmega644A_Datasheet_Complete-10/2016
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