.syntax unified
.cpu cortex-m3
.fpu softvfp
.thumb

.global g_pfnVectors
.global Default_Handler

.word _sidata
.word _sdata
.word _edata
.word _sbss
.word _ebss

.section .text.Reset_Handler
.weak Reset_Handler
.type Reset_Handler, %function
Reset_Handler:
  ldr   r0, =_estack
  mov   sp, r0
  bl    SystemInit

  ldr r0, =_sdata
  ldr r1, =_edata
  ldr r2, =_sidata
  movs r3, #0
  b LoopCopyDataInit

CopyDataInit:
  ldr r4, [r2, r3]
  str r4, [r0, r3]
  adds r3, r3, #4

LoopCopyDataInit:
  adds r4, r0, r3
  cmp r4, r1
  bcc CopyDataInit

  ldr r2, =_sbss
  ldr r4, =_ebss
  movs r3, #0
  b LoopFillZerobss

FillZerobss:
  str  r3, [r2]
  adds r2, r2, #4

LoopFillZerobss:
  cmp r2, r4
  bcc FillZerobss

  bl __libc_init_array
  bl main

LoopForever:
  b LoopForever

.size Reset_Handler, .-Reset_Handler

.section .text.Default_Handler,"ax",%progbits
Default_Handler:
Infinite_Loop:
  b Infinite_Loop
.size Default_Handler, .-Default_Handler

.macro def_irq handler
.weak \handler
.thumb_set \handler, Default_Handler
.endm

def_irq NMI_Handler
def_irq HardFault_Handler
def_irq MemManage_Handler
def_irq BusFault_Handler
def_irq UsageFault_Handler
def_irq SVC_Handler
def_irq DebugMon_Handler
def_irq PendSV_Handler
def_irq SysTick_Handler
def_irq WWDG_IRQHandler
def_irq PVD_IRQHandler
def_irq TAMPER_IRQHandler
def_irq RTC_IRQHandler
def_irq FLASH_IRQHandler
def_irq RCC_IRQHandler
def_irq EXTI0_IRQHandler
def_irq EXTI1_IRQHandler
def_irq EXTI2_IRQHandler
def_irq EXTI3_IRQHandler
def_irq EXTI4_IRQHandler
def_irq DMA1_Channel1_IRQHandler
def_irq DMA1_Channel2_IRQHandler
def_irq DMA1_Channel3_IRQHandler
def_irq DMA1_Channel4_IRQHandler
def_irq DMA1_Channel5_IRQHandler
def_irq DMA1_Channel6_IRQHandler
def_irq DMA1_Channel7_IRQHandler
def_irq ADC1_2_IRQHandler
def_irq USB_HP_CAN1_TX_IRQHandler
def_irq USB_LP_CAN1_RX0_IRQHandler
def_irq CAN1_RX1_IRQHandler
def_irq CAN1_SCE_IRQHandler
def_irq EXTI9_5_IRQHandler
def_irq TIM1_BRK_IRQHandler
def_irq TIM1_UP_IRQHandler
def_irq TIM1_TRG_COM_IRQHandler
def_irq TIM1_CC_IRQHandler
def_irq TIM2_IRQHandler
def_irq TIM3_IRQHandler
def_irq TIM4_IRQHandler
def_irq I2C1_EV_IRQHandler
def_irq I2C1_ER_IRQHandler
def_irq I2C2_EV_IRQHandler
def_irq I2C2_ER_IRQHandler
def_irq SPI1_IRQHandler
def_irq SPI2_IRQHandler
def_irq USART1_IRQHandler
def_irq USART2_IRQHandler
def_irq USART3_IRQHandler
def_irq EXTI15_10_IRQHandler
def_irq RTC_Alarm_IRQHandler
def_irq USBWakeUp_IRQHandler

.section .isr_vector,"a",%progbits
.type g_pfnVectors, %object
g_pfnVectors:
  .word _estack
  .word Reset_Handler
  .word NMI_Handler
  .word HardFault_Handler
  .word MemManage_Handler
  .word BusFault_Handler
  .word UsageFault_Handler
  .word 0
  .word 0
  .word 0
  .word 0
  .word SVC_Handler
  .word DebugMon_Handler
  .word 0
  .word PendSV_Handler
  .word SysTick_Handler
  .word WWDG_IRQHandler
  .word PVD_IRQHandler
  .word TAMPER_IRQHandler
  .word RTC_IRQHandler
  .word FLASH_IRQHandler
  .word RCC_IRQHandler
  .word EXTI0_IRQHandler
  .word EXTI1_IRQHandler
  .word EXTI2_IRQHandler
  .word EXTI3_IRQHandler
  .word EXTI4_IRQHandler
  .word DMA1_Channel1_IRQHandler
  .word DMA1_Channel2_IRQHandler
  .word DMA1_Channel3_IRQHandler
  .word DMA1_Channel4_IRQHandler
  .word DMA1_Channel5_IRQHandler
  .word DMA1_Channel6_IRQHandler
  .word DMA1_Channel7_IRQHandler
  .word ADC1_2_IRQHandler
  .word USB_HP_CAN1_TX_IRQHandler
  .word USB_LP_CAN1_RX0_IRQHandler
  .word CAN1_RX1_IRQHandler
  .word CAN1_SCE_IRQHandler
  .word EXTI9_5_IRQHandler
  .word TIM1_BRK_IRQHandler
  .word TIM1_UP_IRQHandler
  .word TIM1_TRG_COM_IRQHandler
  .word TIM1_CC_IRQHandler
  .word TIM2_IRQHandler
  .word TIM3_IRQHandler
  .word TIM4_IRQHandler
  .word I2C1_EV_IRQHandler
  .word I2C1_ER_IRQHandler
  .word I2C2_EV_IRQHandler
  .word I2C2_ER_IRQHandler
  .word SPI1_IRQHandler
  .word SPI2_IRQHandler
  .word USART1_IRQHandler
  .word USART2_IRQHandler
  .word USART3_IRQHandler
  .word EXTI15_10_IRQHandler
  .word RTC_Alarm_IRQHandler
  .word USBWakeUp_IRQHandler
.size g_pfnVectors, .-g_pfnVectors