- .section .text.Reset_Handler
- .weak Reset_Handler
- .type Reset_Handler, %function
- Reset_Handler:
- /* Copy the data segment initializers from flash to SRAM */
- movs r1, #0
- b LoopCopyDataInit
- CopyDataInit:
- ldr r3, =_sidata
- ldr r3, [r3, r1]
- str r3, [r0, r1]
- adds r1, r1, #4
- LoopCopyDataInit:
- ldr r0, =_sdata
- ldr r3, =_edata
- adds r2, r0, r1
- cmp r2, r3
- bcc CopyDataInit
- ldr r2, =_sbss
- b LoopFillZerobss
- /* Zero fill the bss segment. */
- FillZerobss:
- movs r3, #0
- str r3, [r2], #4
- LoopFillZerobss:
- ldr r3, = _ebss
- cmp r2, r3
- bcc FillZerobss
- /* Call the clock system intitialization function.*/
- bl SystemInit
- /* Call static constructors */
- bl __libc_init_array
- /* Call the application's entry point.*/
- bl main
- bx lr
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