233 lines
8.2 KiB
ArmAsm
233 lines
8.2 KiB
ArmAsm
.syntax unified
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.cpu cortex-m23
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.fpu softvfp
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.thumb
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.global g_pfnVectors
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.global Default_Handler
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/* necessary symbols defined in linker script to initialize data */
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.word _sidata
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.word _sdata
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.word _edata
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.word _sbss
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.word _ebss
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.section .text.Reset_Handler
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.weak Reset_Handler
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.type Reset_Handler, %function
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/* reset Handler */
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Reset_Handler:
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ldr r0, =_estack
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mov sp, r0
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/* copy the data segment into ram */
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movs r1, #0
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b LoopCopyDataInit
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CopyDataInit:
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ldr r3, =_sidata
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ldr r3, [r3, r1]
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str r3, [r0, r1]
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adds r1, r1, #4
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LoopCopyDataInit:
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ldr r0, =_sdata
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ldr r3, =_edata
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adds r2, r0, r1
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cmp r2, r3
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bcc CopyDataInit
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ldr r2, =_sbss
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b LoopFillZerobss
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FillZerobss:
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movs r3, #0
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str r3, [r2]
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adds r2, r2, #4
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LoopFillZerobss:
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ldr r3, = _ebss
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cmp r2, r3
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bcc FillZerobss
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/* Call SystemInit function */
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bl SystemInit
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/* Call static constructors */
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bl __libc_init_array
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/*Call the main function */
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bl main
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LoopForever:
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b LoopForever
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.size Reset_Handler, .-Reset_Handler
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.section .text.Default_Handler,"ax",%progbits
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Default_Handler:
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Infinite_Loop:
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b Infinite_Loop
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.size Default_Handler, .-Default_Handler
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.section .vectors,"a",%progbits
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.global __gVectors
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__gVectors:
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.word _sp /* Top of Stack */
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.word Reset_Handler /* 1:Reset Handler */
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.word NMI_Handler /* 2:NMI Handler */
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.word HardFault_Handler /* 3:Hard Fault Handler */
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.word 0 /* Reserved */
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.word 0 /* Reserved */
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.word 0 /* Reserved */
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.word 0 /* Reserved */
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.word 0 /* Reserved */
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.word 0 /* Reserved */
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.word 0 /* Reserved */
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.word SVC_Handler /* 11:SVCall Handler */
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.word 0 /* Reserved */
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.word 0 /* Reserved */
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.word PendSV_Handler /* 14:PendSV Handler */
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.word SysTick_Handler /* 15:SysTick Handler */
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/* external interrupts handler */
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.word WWDGT_IRQHandler /* 16:Window Watchdog Timer */
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.word LVD_IRQHandler /* 17:LVD through EXTI Line detect */
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.word RTC_IRQHandler /* 18:RTC through EXTI Line */
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.word FMC_IRQHandler /* 19:FMC */
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.word RCU_IRQHandler /* 20:RCU */
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.word EXTI0_1_IRQHandler /* 21:EXTI Line 0 and EXTI Line 1 */
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.word EXTI2_3_IRQHandler /* 22:EXTI Line 2 and EXTI Line 3 */
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.word EXTI4_15_IRQHandler /* 23:EXTI Line 4 to EXTI Line 15 */
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.word 0 /* Reserved */
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.word DMA_Channel0_IRQHandler /* 25:DMA Channel 0 */
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.word DMA_Channel1_2_IRQHandler /* 26:DMA Channel 1 and DMA Channel 2 */
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.word DMA_Channel3_4_IRQHandler /* 27:DMA Channel 3 and DMA Channel 4 */
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.word ADC_CMP_IRQHandler /* 28:ADC and Comparator */
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.word TIMER0_BRK_UP_TRG_COM_IRQHandler /* 29:TIMER0 Break,Update,Trigger and Commutation */
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.word TIMER0_Channel_IRQHandler /* 30:TIMER0 Channel Capture Compare */
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.word 0 /* Reserved */
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.word TIMER2_IRQHandler /* 32:TIMER2 */
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.word TIMER5_IRQHandler /* 33:TIMER5 */
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.word 0 /* Reserved */
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.word TIMER13_IRQHandler /* 35:TIMER13 */
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.word TIMER14_IRQHandler /* 36:TIMER14 */
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.word TIMER15_IRQHandler /* 37:TIMER15 */
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.word TIMER16_IRQHandler /* 38:TIMER16 */
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.word I2C0_EV_IRQHandler /* 39:I2C0 Event */
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.word I2C1_EV_IRQHandler /* 40:I2C1 Event */
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.word SPI0_IRQHandler /* 41:SPI0 */
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.word SPI1_IRQHandler /* 42:SPI1 */
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.word USART0_IRQHandler /* 43:USART0 */
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.word USART1_IRQHandler /* 44:USART1 */
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.word 0 /* Reserved */
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.word 0 /* Reserved */
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.word 0 /* Reserved */
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.word I2C0_ER_IRQHandler /* 48:I2C0 Error */
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.word 0 /* Reserved */
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.word I2C1_ER_IRQHandler /* 50:I2C1 Error */
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.size __gVectors, . - __gVectors
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.weak NMI_Handler
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.thumb_set NMI_Handler,Default_Handler
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.weak HardFault_Handler
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.thumb_set HardFault_Handler,Default_Handler
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.weak SVC_Handler
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.thumb_set SVC_Handler,Default_Handler
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.weak PendSV_Handler
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.thumb_set PendSV_Handler,Default_Handler
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.weak SysTick_Handler
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.thumb_set SysTick_Handler,Default_Handler
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.weak WWDGT_IRQHandler
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.thumb_set WWDGT_IRQHandler,Default_Handler
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.weak LVD_IRQHandler
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.thumb_set LVD_IRQHandler,Default_Handler
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.weak TAMPER_IRQHandler
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.thumb_set TAMPER_IRQHandler,Default_Handler
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.weak RTC_IRQHandler
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.thumb_set RTC_IRQHandler,Default_Handler
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.weak FMC_IRQHandler
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.thumb_set FMC_IRQHandler,Default_Handler
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.weak RCU_IRQHandler
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.thumb_set RCU_IRQHandler,Default_Handler
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.weak EXTI0_1_IRQHandler
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.thumb_set EXTI0_1_IRQHandler,Default_Handler
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.weak EXTI2_3_IRQHandler
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.thumb_set EXTI2_3_IRQHandler,Default_Handler
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.weak EXTI4_15_IRQHandler
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.thumb_set EXTI4_15_IRQHandler,Default_Handler
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.weak DMA_Channel0_IRQHandler
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.thumb_set DMA_Channel0_IRQHandler,Default_Handler
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.weak DMA_Channel1_2_IRQHandler
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.thumb_set DMA_Channel1_2_IRQHandler,Default_Handler
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.weak DMA_Channel3_4_IRQHandler
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.thumb_set DMA_Channel3_4_IRQHandler,Default_Handler
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.weak ADC_CMP_IRQHandler
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.thumb_set ADC_CMP_IRQHandler,Default_Handler
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.weak TIMER0_BRK_UP_TRG_COM_IRQHandler
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.thumb_set TIMER0_BRK_UP_TRG_COM_IRQHandler,Default_Handler
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.weak TIMER0_Channel_IRQHandler
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.thumb_set TIMER0_Channel_IRQHandler,Default_Handler
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.weak TIMER2_IRQHandler
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.thumb_set TIMER2_IRQHandler,Default_Handler
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.weak TIMER5_IRQHandler
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.thumb_set TIMER5_IRQHandler,Default_Handler
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.weak TIMER13_IRQHandler
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.thumb_set TIMER13_IRQHandler,Default_Handler
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.weak TIMER14_IRQHandler
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.thumb_set TIMER14_IRQHandler,Default_Handler
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.weak TIMER15_IRQHandler
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.thumb_set TIMER15_IRQHandler,Default_Handler
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.weak TIMER16_IRQHandler
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.thumb_set TIMER16_IRQHandler,Default_Handler
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.weak I2C0_EV_IRQHandler
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.thumb_set I2C0_EV_IRQHandler,Default_Handler
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.weak I2C1_EV_IRQHandler
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.thumb_set I2C1_EV_IRQHandler,Default_Handler
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.weak SPI0_IRQHandler
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.thumb_set SPI0_IRQHandler,Default_Handler
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.weak SPI1_IRQHandler
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.thumb_set SPI1_IRQHandler,Default_Handler
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.weak USART0_IRQHandler
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.thumb_set USART0_IRQHandler,Default_Handler
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.weak USART1_IRQHandler
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.thumb_set USART1_IRQHandler,Default_Handler
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.weak I2C0_ER_IRQHandler
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.thumb_set I2C0_ER_IRQHandler,Default_Handler
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.weak I2C1_ER_IRQHandler
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.thumb_set I2C1_ER_IRQHandler,Default_Handler
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