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   1         .code 32
   2
   3         .section .vect
   4         .extern startup
   5 intr_vector:
   6         b startup
   7         b intr_entry_undef
   8         b intr_entry_swi
   9         b intr_entry_iabort
  10         b intr_entry_dabort
  11         b intr_entry_irq
  12
  13         @ FIQ entry point used for timer interrupts
  14         .extern num_ticks
  15 intr_entry_fiq:
  16         ldr r9, =num_ticks
  17         ldr r8, [r9]
  18         add r8, #1
  19         str r8, [r9]
  20         subs pc, lr, #4
  21
  22         .text
  23 intr_entry_undef:
  24 intr_entry_swi:
  25 intr_entry_iabort:
  26 intr_entry_dabort:
  27 intr_entry_irq:
  28         subs pc, lr, #4