git.zerfleddert.de Git - proxmark3-svn/blob - bootrom/flash-reset.s

   1 .extern CopyBootToRAM
   2
   3 .section .startup,"ax"
   4          .code 32
   5          .align 0
   6
   7 .global flashstart
   8 flashstart:
   9     b       Reset
  10     b       UndefinedInstruction
  11     b       SoftwareInterrupt
  12     b       PrefetchAbort
  13     b       DataAbort
  14     b       Reserved
  15     b       Irq
  16     b       Fiq
  17
  18 Reset:
  19     ldr     sp,     .stack_end  @ initialize stack pointer to top of RAM
  20     bl      CopyBootToRAM                       @ copy bootloader to RAM (in case the
  21                                                                 @ user re-flashes the bootloader)
  22     ldr     r3,     .bootphase2_start   @ start address of RAM bootloader
  23     bx      r3                                          @ jump to it
  24
  25         .stack_end:
  26         .word _stack_end
  27         .bootphase2_start:
  28         .word __bootphase2_start__
  29
  30 Fiq:
  31     b       Fiq
  32 UndefinedInstruction:
  33     b       UndefinedInstruction
  34 SoftwareInterrupt:
  35     b       SoftwareInterrupt
  36 PrefetchAbort:
  37     b       PrefetchAbort
  38 DataAbort:
  39     b       DataAbort
  40 Reserved:
  41     b       Reserved
  42 Irq:
  43     b       Irq