;//HeapSize(inBytes)<0x0-0xFFFFFFFF:8>
;//
Heap_SizeEQU0x00000020;//界说堆空间巨细
AREAHEAP,NOINIT,READWRITE,ALIGN=3;//界说一个数据段，8字节对齐
__heap_base
Heap_MemSPACEHeap_Size;//保存Heap_Size的堆空间
__heap_limit;//标号，代表堆结尾地址，后边有用
PRESERVE8;//指示编译器8字节对齐
THUMB;//指示编译器为THUMB指令
;VectorTableMappedtoAddress0atReset
AREARESET,DATA,READONLY;//界说只读数据段，其实放在CODE区，坐落0地址
EXTERNNMIExcepTIon
EXTERNHardFaultExcepTIon
EXTERNMemManageExcepTIon
EXTERNBusFaultExcepTIon
EXTERNUsageFaultException
EXTERNSVCHandler
EXTERNDebugMonitor
EXTERNPendSVC
EXTERNSysTickHandler;//声明这些符号在外部界说，同C
;//在××it.c中完成这些函数，中止就能主动调用了
EXPORT__Vectors
__VectorsDCD__initial_sp;TopofStack//Cotex-M要求此处为仓库顶部地址
DCDReset_Handler;ResetHandler
DCDNMIException;NMIHandler
DCDHardFaultException;HardFaultHandler
DCDMemManageException;MPUFaultHandler
DCDBusFaultException;BusFaultHandler
DCDUsageFaultException;UsageFaultHandler
DCD0;Reserved
DCD0;Reserved
DCD0;Reserved
DCD0;Reserved
DCDSVCHandler;SVCallHandler
DCDDebugMonitor;DebugMonitorHandler
DCD 0 ; Reserved
