請問大俠們，cm3核上的寄存器是在哪個文件里定義的？庫裡沒找到！！！
------解决方案--------------------
和CM3的版本有关系呢 看一下使用的CM3的帮助文件
在V3.02 （16. July 2012） 版本中：
174行有这样的描述：
/*******************************************************************************
* Register Abstraction
Core Register contain:
- Core Register
- Core NVIC Register
- Core SCB Register
- Core SysTick Register
- Core Debug Register
- Core MPU Register
******************************************************************************/
/*******************************************************************************
* Register Abstraction
Core Register contain:
- Core Register
- Core NVIC Register
- Core SCB Register
- Core SysTick Register
- Core Debug Register
- Core MPU Register
******************************************************************************/
/** \defgroup CMSIS_core_register Defines and Type Definitions
\brief Type definitions and defines for Cortex-M processor based devices.
*/
/** \ingroup CMSIS_core_register
\defgroup CMSIS_CORE Status and Control Registers
\brief Core Register type definitions.
@{
*/
/** \brief Union type to access the Application Program Status Register (APSR).
*/
typedef union
{
struct
{
#if (__CORTEX_M != 0x04)
uint32_t _reserved0:27; /*!< bit: 0..26 Reserved */
#else
uint32_t _reserved0:16; /*!< bit: 0..15 Reserved */
uint32_t GE:4; /*!< bit: 16..19 Greater than or Equal flags */
uint32_t _reserved1:7; /*!< bit: 20..26 Reserved */
#endif
uint32_t Q:1; /*!< bit: 27 Saturation condition flag */
uint32_t V:1; /*!< bit: 28 Overflow condition code flag */
uint32_t C:1; /*!< bit: 29 Carry condition code flag */
uint32_t Z:1; /*!< bit: 30 Zero condition code flag */
uint32_t N:1; /*!< bit: 31 Negative condition code flag */
} b; /*!< Structure used for bit access */