/*****************************************************************************
  LPC31xx loader startup code.

  Copyright (c) 2009 Rowley Associates Limited.
 
  This file may be distributed under the terms of the License Agreement
  provided with this software.
 
  THIS FILE IS PROVIDED AS IS WITH NO WARRANTY OF ANY KIND, INCLUDING THE
  WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *****************************************************************************/

  .section .bootimage, "ax"
  .global boot_reset
  .global cust_reserved
boot_reset:
  b _start
  .word 0x41676d69 // magic
  .word 0 // execution_crc32
  .word 0,0,0,0 // Reserved0
  .word 0x0000000A // imageType	
imageLength:
  .word 0x4000 // imageLength - 16K maximum secondary bootloader
  .word 0 // releaseID
  .word 0 // buildTime
  .word 0 // sbzBootParameter
cust_reserved:
  .word 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 // cust_reserved
  .word 0 // header_crc32
  .word 0,0,0,0 // Reserved1

  .section .init, "ax"
  .code 32
  .align 0

  .global _start  
_start:
  ldr sp, =__stack_section_end__
  ldr r2, =__bss_start__
  ldr r3, =__bss_end__
  mov r4, #0
zero_bss_loop:
  cmp r2, r3
  beq zero_bss_end
  strb r4, [r2], #+1
  b zero_bss_loop
zero_bss_end:    
  bl main
  teq r0, #0
  movne pc, r0
loop:
  b loop