flipperzero-firmware/firmware/targets/f7/cube/startup_stm32wb55xx_cm4.s

/**
 ******************************************************************************
 * @file      startup_stm32wb55xx_cm4.s
 * @author    MCD Application Team
 * @brief     STM32WB55xx devices vector table GCC toolchain.
 *            This module performs:
 *                - Set the initial SP
 *                - Set the initial PC == Reset_Handler,
 *                - Set the vector table entries with the exceptions ISR address
 *                - Branches to main in the C library (which eventually
 *                  calls main()).
 *            After Reset the Cortex-M4 processor is in Thread mode,
 *            priority is Privileged, and the Stack is set to Main.
 ******************************************************************************
 * @attention
 *
 * Copyright (c) 2019-2021 STMicroelectronics.
 * All rights reserved.
 *
 * This software is licensed under terms that can be found in the LICENSE file
 * in the root directory of this software component.
 * If no LICENSE file comes with this software, it is provided AS-IS.
 *
 ******************************************************************************
 */

.syntax unified
.cpu cortex-m4
.fpu softvfp
.thumb

.global g_pfnVectors
.global Default_Handler

/* start address for the initialization values of the .data section.
defined in linker script */
.word _sidata
/* start address for the .data section. defined in linker script */
.word _sdata
/* end address for the .data section. defined in linker script */
.word _edata
/* start address for the .bss section. defined in linker script */
.word _sbss
/* end address for the .bss section. defined in linker script */
.word _ebss
/* start address for the .MB_MEM2 section. defined in linker script */
.word _sMB_MEM2
/* end address for the .MB_MEM2 section. defined in linker script */
.word _eMB_MEM2

/* INIT_BSS macro is used to fill the specified region [start : end] with zeros */
.macro INIT_BSS start, end
    ldr r0, =\start
    ldr r1, =\end
    movs r3, #0
    bl LoopFillZerobss
.endm

/* INIT_DATA macro is used to copy data in the region [start : end] starting from 'src' */
.macro INIT_DATA start, end, src
    ldr r0, =\start
    ldr r1, =\end
    ldr r2, =\src
    movs r3, #0
    bl LoopCopyDataInit
.endm

.section  .text.data_initializers
CopyDataInit:
    ldr r4, [r2, r3]
    str r4, [r0, r3]
    adds r3, r3, #4

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

FillZerobss:
    str  r3, [r0]
    adds r0, r0, #4

LoopFillZerobss:
    cmp r0, r1
    bcc FillZerobss
    bx lr


.section .text.Reset_Handler
.weak Reset_Handler
.type Reset_Handler, %function

Reset_Handler:
    ldr   r0, =_estack
    mov   sp, r0          /* set stack pointer */
    /* Call the clock system intitialization function.*/
    bl  SystemInit

/* Copy the data segment initializers from flash to SRAM */
    INIT_DATA _sdata, _edata, _sidata

/* Zero fill the bss segments. */
    INIT_BSS _sbss, _ebss
    INIT_BSS _sMB_MEM2, _eMB_MEM2

/* Call static constructors */
    bl __libc_init_array
/* Call the application s entry point.*/
    bl  main

LoopForever:
    b LoopForever

.size Reset_Handler, .-Reset_Handler

/**
 * @brief  This is the code that gets called when the processor receives an
 *         unexpected interrupt.  This simply enters an infinite loop, preserving
 *         the system state for examination by a debugger.
 *
 * @param  None
 * @retval None
*/
    .section .text.Default_Handler,"ax",%progbits
Default_Handler:
Infinite_Loop:
    b Infinite_Loop
    .size Default_Handler, .-Default_Handler
/******************************************************************************
*
* The minimal vector table for a Cortex-M4.  Note that the proper constructs
* must be placed on this to ensure that it ends up at physical address
* 0x0000.0000.
*
******************************************************************************/
    .section  .isr_vector,"a",%progbits
    .type g_pfnVectors, %object
    .size g_pfnVectors, .-g_pfnVectors


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_PVM_IRQHandler
    .word TAMP_STAMP_LSECSS_IRQHandler
    .word RTC_WKUP_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_IRQHandler
    .word USB_HP_IRQHandler
    .word USB_LP_IRQHandler
    .word C2SEV_PWR_C2H_IRQHandler
    .word COMP_IRQHandler
    .word EXTI9_5_IRQHandler
    .word TIM1_BRK_IRQHandler
    .word TIM1_UP_TIM16_IRQHandler
    .word TIM1_TRG_COM_TIM17_IRQHandler
    .word TIM1_CC_IRQHandler
    .word TIM2_IRQHandler
    .word PKA_IRQHandler
    .word I2C1_EV_IRQHandler
    .word I2C1_ER_IRQHandler
    .word I2C3_EV_IRQHandler
    .word I2C3_ER_IRQHandler
    .word SPI1_IRQHandler
    .word SPI2_IRQHandler
    .word USART1_IRQHandler
    .word LPUART1_IRQHandler
    .word SAI1_IRQHandler
    .word TSC_IRQHandler
    .word EXTI15_10_IRQHandler
    .word RTC_Alarm_IRQHandler
    .word CRS_IRQHandler
    .word PWR_SOTF_BLEACT_802ACT_RFPHASE_IRQHandler
    .word IPCC_C1_RX_IRQHandler
    .word IPCC_C1_TX_IRQHandler
    .word HSEM_IRQHandler
    .word LPTIM1_IRQHandler
    .word LPTIM2_IRQHandler
    .word LCD_IRQHandler
    .word QUADSPI_IRQHandler
    .word AES1_IRQHandler
    .word AES2_IRQHandler
    .word RNG_IRQHandler
    .word FPU_IRQHandler
    .word DMA2_Channel1_IRQHandler
    .word DMA2_Channel2_IRQHandler
    .word DMA2_Channel3_IRQHandler
    .word DMA2_Channel4_IRQHandler
    .word DMA2_Channel5_IRQHandler
    .word DMA2_Channel6_IRQHandler
    .word DMA2_Channel7_IRQHandler
    .word DMAMUX1_OVR_IRQHandler

/*******************************************************************************
*
* Provide weak aliases for each Exception handler to the Default_Handler.
* As they are weak aliases, any function with the same name will override
* this definition.
*
*******************************************************************************/
    .weak NMI_Handler
    .thumb_set NMI_Handler,Default_Handler
    
    .weak  HardFault_Handler
    .thumb_set HardFault_Handler,Default_Handler

    .weak  MemManage_Handler
    .thumb_set MemManage_Handler,Default_Handler

    .weak  BusFault_Handler
    .thumb_set BusFault_Handler,Default_Handler

    .weak  UsageFault_Handler
    .thumb_set UsageFault_Handler,Default_Handler

    .weak  SVC_Handler
    .thumb_set SVC_Handler,Default_Handler

    .weak  DebugMon_Handler
    .thumb_set DebugMon_Handler,Default_Handler

    .weak  PendSV_Handler
    .thumb_set PendSV_Handler,Default_Handler

    .weak  SysTick_Handler
    .thumb_set SysTick_Handler,Default_Handler

    .weak  WWDG_IRQHandler
    .thumb_set WWDG_IRQHandler,Default_Handler

    .weak  PVD_PVM_IRQHandler
    .thumb_set PVD_PVM_IRQHandler,Default_Handler

    .weak  TAMP_STAMP_LSECSS_IRQHandler
    .thumb_set TAMP_STAMP_LSECSS_IRQHandler,Default_Handler

    .weak  RTC_WKUP_IRQHandler
    .thumb_set RTC_WKUP_IRQHandler,Default_Handler

    .weak  FLASH_IRQHandler
    .thumb_set FLASH_IRQHandler,Default_Handler

    .weak  RCC_IRQHandler
    .thumb_set RCC_IRQHandler,Default_Handler

    .weak  EXTI0_IRQHandler
    .thumb_set EXTI0_IRQHandler,Default_Handler

    .weak  EXTI1_IRQHandler
    .thumb_set EXTI1_IRQHandler,Default_Handler

    .weak  EXTI2_IRQHandler
    .thumb_set EXTI2_IRQHandler,Default_Handler

    .weak  EXTI3_IRQHandler
    .thumb_set EXTI3_IRQHandler,Default_Handler

    .weak  EXTI4_IRQHandler
    .thumb_set EXTI4_IRQHandler,Default_Handler

    .weak  DMA1_Channel1_IRQHandler
    .thumb_set DMA1_Channel1_IRQHandler,Default_Handler

    .weak  DMA1_Channel2_IRQHandler
    .thumb_set DMA1_Channel2_IRQHandler,Default_Handler

    .weak  DMA1_Channel3_IRQHandler
    .thumb_set DMA1_Channel3_IRQHandler,Default_Handler

    .weak  DMA1_Channel4_IRQHandler
    .thumb_set DMA1_Channel4_IRQHandler,Default_Handler

    .weak  DMA1_Channel5_IRQHandler
    .thumb_set DMA1_Channel5_IRQHandler,Default_Handler

    .weak  DMA1_Channel6_IRQHandler
    .thumb_set DMA1_Channel6_IRQHandler,Default_Handler

    .weak  DMA1_Channel7_IRQHandler
    .thumb_set DMA1_Channel7_IRQHandler,Default_Handler

    .weak  ADC1_IRQHandler
    .thumb_set ADC1_IRQHandler,Default_Handler

    .weak  USB_HP_IRQHandler
    .thumb_set USB_HP_IRQHandler,Default_Handler

    .weak  USB_LP_IRQHandler
    .thumb_set USB_LP_IRQHandler,Default_Handler

    .weak  C2SEV_PWR_C2H_IRQHandler
    .thumb_set C2SEV_PWR_C2H_IRQHandler,Default_Handler

    .weak  COMP_IRQHandler
    .thumb_set COMP_IRQHandler,Default_Handler

    .weak  EXTI9_5_IRQHandler
    .thumb_set EXTI9_5_IRQHandler,Default_Handler

    .weak  TIM1_BRK_IRQHandler
    .thumb_set TIM1_BRK_IRQHandler,Default_Handler

    .weak  TIM1_UP_TIM16_IRQHandler
    .thumb_set TIM1_UP_TIM16_IRQHandler,Default_Handler

    .weak  TIM1_TRG_COM_TIM17_IRQHandler
    .thumb_set TIM1_TRG_COM_TIM17_IRQHandler,Default_Handler

    .weak  TIM1_CC_IRQHandler
    .thumb_set TIM1_CC_IRQHandler,Default_Handler

    .weak  TIM2_IRQHandler
    .thumb_set TIM2_IRQHandler,Default_Handler

    .weak  PKA_IRQHandler
    .thumb_set PKA_IRQHandler,Default_Handler

    .weak  I2C1_EV_IRQHandler
    .thumb_set I2C1_EV_IRQHandler,Default_Handler

    .weak  I2C1_ER_IRQHandler
    .thumb_set I2C1_ER_IRQHandler,Default_Handler

    .weak  I2C3_EV_IRQHandler
    .thumb_set I2C3_EV_IRQHandler,Default_Handler

    .weak  I2C3_ER_IRQHandler
    .thumb_set I2C3_ER_IRQHandler,Default_Handler

    .weak  SPI1_IRQHandler
    .thumb_set SPI1_IRQHandler,Default_Handler

    .weak  SPI2_IRQHandler
    .thumb_set SPI2_IRQHandler,Default_Handler

    .weak  USART1_IRQHandler
    .thumb_set USART1_IRQHandler,Default_Handler

    .weak  LPUART1_IRQHandler
    .thumb_set LPUART1_IRQHandler,Default_Handler

    .weak  SAI1_IRQHandler
    .thumb_set SAI1_IRQHandler,Default_Handler

    .weak  TSC_IRQHandler
    .thumb_set TSC_IRQHandler,Default_Handler

    .weak  EXTI15_10_IRQHandler
    .thumb_set EXTI15_10_IRQHandler,Default_Handler

    .weak  RTC_Alarm_IRQHandler
    .thumb_set RTC_Alarm_IRQHandler,Default_Handler

    .weak  CRS_IRQHandler
    .thumb_set CRS_IRQHandler,Default_Handler

    .weak  PWR_SOTF_BLEACT_802ACT_RFPHASE_IRQHandler
    .thumb_set PWR_SOTF_BLEACT_802ACT_RFPHASE_IRQHandler,Default_Handler

    .weak  IPCC_C1_RX_IRQHandler
    .thumb_set IPCC_C1_RX_IRQHandler,Default_Handler

    .weak  IPCC_C1_TX_IRQHandler
    .thumb_set IPCC_C1_TX_IRQHandler,Default_Handler

    .weak  HSEM_IRQHandler
    .thumb_set HSEM_IRQHandler,Default_Handler

    .weak  LPTIM1_IRQHandler
    .thumb_set LPTIM1_IRQHandler,Default_Handler

    .weak  LPTIM2_IRQHandler
    .thumb_set LPTIM2_IRQHandler,Default_Handler

    .weak  LCD_IRQHandler
    .thumb_set LCD_IRQHandler,Default_Handler

    .weak  QUADSPI_IRQHandler
    .thumb_set QUADSPI_IRQHandler,Default_Handler

    .weak  AES1_IRQHandler
    .thumb_set AES1_IRQHandler,Default_Handler

    .weak  AES2_IRQHandler
    .thumb_set AES2_IRQHandler,Default_Handler

    .weak  RNG_IRQHandler
    .thumb_set RNG_IRQHandler,Default_Handler

    .weak  FPU_IRQHandler
    .thumb_set FPU_IRQHandler,Default_Handler

    .weak  DMA2_Channel1_IRQHandler
    .thumb_set DMA2_Channel1_IRQHandler,Default_Handler

    .weak  DMA2_Channel2_IRQHandler
    .thumb_set DMA2_Channel2_IRQHandler,Default_Handler

    .weak  DMA2_Channel3_IRQHandler
    .thumb_set DMA2_Channel3_IRQHandler,Default_Handler

    .weak  DMA2_Channel4_IRQHandler
    .thumb_set DMA2_Channel4_IRQHandler,Default_Handler

    .weak  DMA2_Channel5_IRQHandler
    .thumb_set DMA2_Channel5_IRQHandler,Default_Handler

    .weak  DMA2_Channel6_IRQHandler
    .thumb_set DMA2_Channel6_IRQHandler,Default_Handler

    .weak  DMA2_Channel7_IRQHandler
    .thumb_set DMA2_Channel7_IRQHandler,Default_Handler

    .weak  DMAMUX1_OVR_IRQHandler
    .thumb_set DMAMUX1_OVR_IRQHandler,Default_Handler

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/