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,     = 0x0020FFF8        @ 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,     = 0x00200000        @ start address of RAM bootloader
  23     bx      r3                                          @ jump to it
  24
  25 Fiq:
  26     b       Fiq
  27 UndefinedInstruction:
  28     b       UndefinedInstruction
  29 SoftwareInterrupt:
  30     b       SoftwareInterrupt
  31 PrefetchAbort:
  32     b       PrefetchAbort
  33 DataAbort:
  34     b       DataAbort
  35 Reserved:
  36     b       Reserved
  37 Irq:
  38     b       Irq