大侠好,我最近买了STM3210E-EVAL开发板用来学习，还下载了最新的配套示例程序，用的开发环境是：IAR Embedded Workbench for ARM 5.40
在示例工程里有一些代码不懂，请大侠帮我分析一下，最好对照代码在后面写出一些详细的注释，先谢谢了。
文件名：startup_stm32f10x_hd.s（这个是不是启动代码啊?）
内容：
MODULE ?cstartup
;; ICODE is the same segment as cstartup. By placing __low_level_init
;; in the same segment, we make sure it can be reached with BL. */
SECTION CSTACKATA:NOROOT(3)
SECTION .icode:CODE:NOROOT(2)
PUBLIC __low_level_init
PUBWEAK SystemInit_ExtMemCtl
SECTION .text:CODE:REORDER(2)
THUMB
SystemInit_ExtMemCtl
BX LR
__low_level_init:
;; Initialize hardware.
LDR R0, = SystemInit_ExtMemCtl ; initialize external memory controller
MOV R11, LR
BLX R0
LDR R1, =sfe(CSTACK) ; restore original stack pointer
MSR MSP, R1
MOV R0,#1
;; Return with BX to be independent of mode of caller
BX R11
;; Forward declaration of sections.
SECTION .intvec:CODE:NOROOT(2)
EXTERN __iar_program_start
PUBLIC __vector_table
DATA
__intial_sp EQU 0x20000400
__vector_table
DCD __intial_sp
DCD __iar_program_start
DCD NMI_Handler ; NMI Handler
DCD HardFault_Handler ; Hard Fault Handler
DCD MemManage_Handler ; MPU Fault Handler
DCD BusFault_Handler ; Bus Fault Handler
DCD UsageFault_Handler ; Usage Fault Handler
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD 0 ; Reserved
DCD SVC_Handler ; SVCall Handler
DCD DebugMon_Handler ; Debug Monitor Handler
DCD 0 ; Reserved
DCD PendSV_Handler ; PendSV Handler
DCD SysTick_Handler ; SysTick Handler
; External Interrupts
DCD WWDG_IRQHandler ; Window Watchdog
DCD PVD_IRQHandler ; PVD through EXTI Line detect
DCD TAMPER_IRQHandler ; Tamper
DCD RTC_IRQHandler ; RTC
DCD FLASH_IRQHandler ; Flash
DCD RCC_IRQHandler ; RCC
DCD EXTI0_IRQHandler ; EXTI Line 0
DCD EXTI1_IRQHandler ; EXTI Line 1
DCD EXTI2_IRQHandler ; EXTI Line 2
DCD EXTI3_IRQHandler ; EXTI Line 3
DCD EXTI4_IRQHandler ; EXTI Line 4
DCD DMA1_Channel1_IRQHandler ; DMA1 Channel 1
DCD DMA1_Channel2_IRQHandler ; DMA1 Channel 2
DCD DMA1_Channel3_IRQHandler ; DMA1 Channel 3
DCD DMA1_Channel4_IRQHandler ; DMA1 Channel 4
DCD DMA1_Channel5_IRQHandler ; DMA1 Channel 5
DCD DMA1_Channel6_IRQHandler ; DMA1 Channel 6
DCD DMA1_Channel7_IRQHandler ; DMA1 Channel 7
DCD ADC1_2_IRQHandler ; ADC1 & ADC2
DCD USB_HP_CAN1_TX_IRQHandler ; USB High Priority or CAN1 TX
DCD USB_LP_CAN1_RX0_IRQHandler ; USB Low Priority or CAN1 RX0
DCD CAN1_RX1_IRQHandler ; CAN1 RX1
DCD CAN1_SCE_IRQHandler ; CAN1 SCE
DCD EXTI9_5_IRQHandler ; EXTI Line 9..5
DCD TIM1_BRK_IRQHandler ; TIM1 Break
DCD TIM1_UP_IRQHandler ; TIM1 Update
DCD TIM1_TRG_COM_IRQHandler ; TIM1 Trigger and Commutation
DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare
DCD TIM2_IRQHandler ; TIM2
DCD TIM3_IRQHandler ; TIM3
DCD TIM4_IRQHandler ; TIM4
DCD I2C1_EV_IRQHandler ; I2C1 Event
DCD I2C1_ER_IRQHandler ; I2C1 Error
DCD I2C2_EV_IRQHandler ; I2C2 Event
DCD I2C2_ER_IRQHandler ; I2C2 Error
DCD SPI1_IRQHandler ; SPI1
DCD SPI2_IRQHandler ; SPI2
DCD USART1_IRQHandler ; USART1
DCD USART2_IRQHandler ; USART2
DCD USART3_IRQHandler ; USART3
DCD EXTI15_10_IRQHandler ; EXTI Line 15..10
DCD RTCAlarm_IRQHandler ; RTC Alarm through EXTI Line
DCD USBWakeUp_IRQHandler ; USB Wakeup from suspend
DCD TIM8_BRK_IRQHandler ; TIM8 Break
DCD TIM8_UP_IRQHandler ; TIM8 Update
DCD TIM8_TRG_COM_IRQHandler ; TIM8 Trigger and Commutation
DCD TIM8_CC_IRQHandler ; TIM8 Capture Compare
DCD ADC3_IRQHandler ; ADC3
DCD FSMC_IRQHandler ; FSMC
DCD SDIO_IRQHandler ; SDIO
DCD TIM5_IRQHandler ; TIM5
DCD SPI3_IRQHandler ; SPI3
DCD UART4_IRQHandler ; UART4
DCD UART5_IRQHandler ; UART5
DCD TIM6_IRQHandler ; TIM6
DCD TIM7_IRQHandler ; TIM7
DCD DMA2_Channel1_IRQHandler ; DMA2 Channel1
DCD DMA2_Channel2_IRQHandler ; DMA2 Channel2
DCD DMA2_Channel3_IRQHandler ; DMA2 Channel3
DCD DMA2_Channel4_5_IRQHandler ; DMA2 Channel4 & Channel5
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Default interrupt handlers.
;;
THUMB
PUBWEAK NMI_Handler
SECTION .text:CODE:REORDER(1)
NMI_Handler
B NMI_Handler
PUBWEAK HardFault_Handler
SECTION .text:CODE:REORDER(1)
HardFault_Handler
B HardFault_Handler
PUBWEAK MemManage_Handler
SECTION .text:CODE:REORDER(1)
MemManage_Handler
B MemManage_Handler
PUBWEAK BusFault_Handler
SECTION .text:CODE:REORDER(1)
BusFault_Handler
B BusFault_Handler
PUBWEAK UsageFault_Handler
SECTION .text:CODE:REORDER(1)
UsageFault_Handler
B UsageFault_Handler
PUBWEAK SVC_Handler
SECTION .text:CODE:REORDER(1)
SVC_Handler
B SVC_Handler
PUBWEAK DebugMon_Handler
SECTION .text:CODE:REORDER(1)
DebugMon_Handler
B DebugMon_Handler
PUBWEAK PendSV_Handler
SECTION .text:CODE:REORDER(1)
PendSV_Handler
B PendSV_Handler
PUBWEAK SysTick_Handler
SECTION .text:CODE:REORDER(1)
SysTick_Handler
B SysTick_Handler
PUBWEAK WWDG_IRQHandler
SECTION .text:CODE:REORDER(1)
WWDG_IRQHandler
B WWDG_IRQHandler
PUBWEAK PVD_IRQHandler
SECTION .text:CODE:REORDER(1)
PVD_IRQHandler
B PVD_IRQHandler
PUBWEAK TAMPER_IRQHandler
SECTION .text:CODE:REORDER(1)
TAMPER_IRQHandler
B TAMPER_IRQHandler
PUBWEAK RTC_IRQHandler
SECTION .text:CODE:REORDER(1)
RTC_IRQHandler
B RTC_IRQHandler
PUBWEAK FLASH_IRQHandler
SECTION .text:CODE:REORDER(1)
FLASH_IRQHandler
B FLASH_IRQHandler
PUBWEAK RCC_IRQHandler
SECTION .text:CODE:REORDER(1)
RCC_IRQHandler
B RCC_IRQHandler
PUBWEAK EXTI0_IRQHandler
SECTION .text:CODE:REORDER(1)
EXTI0_IRQHandler
B EXTI0_IRQHandler
PUBWEAK EXTI1_IRQHandler
SECTION .text:CODE:REORDER(1)
EXTI1_IRQHandler
B EXTI1_IRQHandler
PUBWEAK EXTI2_IRQHandler
SECTION .text:CODE:REORDER(1)
(以下还有类似于上面的中断跳转代码，省略)
END
/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/
哪位大侠帮我对照源代码写个详细的注释好吗？
我是新手，请大侠指点迷津啊。
谢谢。
等了一天了，怎么没有人回答我呢？
我有急用啊，希望大侠指点迷津哦。
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