Hardwired memory locations where the cpu will go to on exception.
The linker’s ld file makes sure these start at memory location 0x00000000.
_vectors:
ldr pc, ResetAddr /* Reset */
ldr pc, UndefAddr /* Undefined instruction */
ldr pc, SWIAddr /* Software interrupt */
ldr pc, PAbortAddr /* Prefetch abort */
ldr pc, DAbortAddr /* Data abort */
ldr pc, ReservedAddr /* Reserved */
ldr pc, IRQAddr /* IRQ interrupt */
ldr pc, FIQAddr /* FIQ interrupt */