173 lines
3.4 KiB
ArmAsm
173 lines
3.4 KiB
ArmAsm
.syntax unified
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.thumb
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.global Reset_Handler
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.type Reset_Handler, %function
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Reset_Handler:
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init_data:
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ldr r2, =_start_init_data
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ldr r3, =_start_data
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ldr r1, =_end_data
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init_data_loop:
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cmp r3, r1
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bhs zero_bss
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ldr r0, [r2]
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str r0, [r3]
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adds r2, r2, #4
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adds r3, r3, #4
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b init_data_loop
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zero_bss:
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ldr r3, =_start_bss
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ldr r1, =_end_bss
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movs r0, #0
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zero_bss_loop:
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cmp r3, r1
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bhs init_finished
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str r0, [r3]
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adds r3, r3, #4
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b zero_bss_loop
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init_finished:
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bl SystemInit
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bl __libc_init_array
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bl main
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infinite_loop:
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b infinite_loop
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.size Reset_Handler, .-Reset_Handler
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.section .vectors, "a"
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.word _end_stack
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.word Reset_Handler
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.word NMI_Handler
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.word HardFault_Handler
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.word 0
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.word 0
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.word 0
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.word 0
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.word 0
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.word 0
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.word 0
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.word SVC_Handler
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.word 0
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.word 0
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.word PendSV_Handler
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.word SysTick_Handler
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.word WWDG_IRQHandler
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.word 0
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.word RTC_IRQHandler
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.word FLASH_IRQHandler
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.word RCC_IRQHandler
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.word EXTI0_1_IRQHandler
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.word EXTI2_3_IRQHandler
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.word EXTI4_15_IRQHandler
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.word 0
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.word DMA1_Channel1_IRQHandler
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.word DMA1_Channel2_3_IRQHandler
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.word DMA1_Channel4_5_IRQHandler
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.word ADC1_IRQHandler
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.word TIM1_BRK_UP_TRG_COM_IRQHandler
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.word TIM1_CC_IRQHandler
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.word 0
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.word TIM3_IRQHandler
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.word 0
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.word 0
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.word TIM14_IRQHandler
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.word 0
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.word TIM16_IRQHandler
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.word TIM17_IRQHandler
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.word I2C1_IRQHandler
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.word 0
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.word SPI1_IRQHandler
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.word 0
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.word USART1_IRQHandler
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.word 0
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.word 0
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.word 0
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.word 0
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.type Dummy_Handler, %function
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Dummy_Handler:
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b Dummy_Handler
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.weak NMI_Handler
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.thumb_set NMI_Handler, Dummy_Handler
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.weak HardFault_Handler
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.thumb_set HardFault_Handler, Dummy_Handler
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.weak SVC_Handler
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.thumb_set SVC_Handler, Dummy_Handler
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.weak PendSV_Handler
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.thumb_set PendSV_Handler, Dummy_Handler
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.weak SysTick_Handler
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.thumb_set SysTick_Handler, Dummy_Handler
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.weak WWDG_IRQHandler
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.thumb_set WWDG_IRQHandler, Dummy_Handler
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.weak RTC_IRQHandler
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.thumb_set RTC_IRQHandler, Dummy_Handler
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.weak FLASH_IRQHandler
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.thumb_set FLASH_IRQHandler, Dummy_Handler
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.weak RCC_IRQHandler
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.thumb_set RCC_IRQHandler, Dummy_Handler
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.weak EXTI0_1_IRQHandler
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.thumb_set EXTI0_1_IRQHandler, Dummy_Handler
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.weak EXTI2_3_IRQHandler
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.thumb_set EXTI2_3_IRQHandler, Dummy_Handler
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.weak EXTI4_15_IRQHandler
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.thumb_set EXTI4_15_IRQHandler, Dummy_Handler
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.weak DMA1_Channel1_IRQHandler
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.thumb_set DMA1_Channel1_IRQHandler, Dummy_Handler
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.weak DMA1_Channel2_3_IRQHandler
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.thumb_set DMA1_Channel2_3_IRQHandler, Dummy_Handler
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.weak DMA1_Channel4_5_IRQHandler
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.thumb_set DMA1_Channel4_5_IRQHandler, Dummy_Handler
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.weak ADC1_IRQHandler
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.thumb_set ADC1_IRQHandler, Dummy_Handler
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.weak TIM1_BRK_UP_TRG_COM_IRQHandler
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.thumb_set TIM1_BRK_UP_TRG_COM_IRQHandler, Dummy_Handler
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.weak TIM1_CC_IRQHandler
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.thumb_set TIM1_CC_IRQHandler, Dummy_Handler
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.weak TIM3_IRQHandler
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.thumb_set TIM3_IRQHandler, Dummy_Handler
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.weak TIM14_IRQHandler
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.thumb_set TIM14_IRQHandler, Dummy_Handler
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.weak TIM16_IRQHandler
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.thumb_set TIM16_IRQHandler, Dummy_Handler
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.weak TIM17_IRQHandler
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.thumb_set TIM17_IRQHandler, Dummy_Handler
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.weak I2C1_IRQHandler
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.thumb_set I2C1_IRQHandler, Dummy_Handler
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.weak SPI1_IRQHandler
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.thumb_set SPI1_IRQHandler, Dummy_Handler
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.weak USART1_IRQHandler
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.thumb_set USART1_IRQHandler, Dummy_Handler
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