xPSR_Type联合体 参考

Union type to access the Special-Purpose Program Status Registers (xPSR). 更多...

#include <core_cm0plus.h>

成员变量
struct {
uint32_t   ISR:9
uint32_t   _reserved0:15
uint32_t   T:1
uint32_t   _reserved1:3
uint32_t   V:1
uint32_t   C:1
uint32_t   Z:1
uint32_t   N:1
}	b
uint32_t	w

详细描述

Union type to access the Special-Purpose Program Status Registers (xPSR).

结构体成员变量说明

_reserved0

uint32_t _reserved0

bit: 9..23 Reserved

_reserved1

uint32_t _reserved1

bit: 25..27 Reserved

b

struct { ... } b

Structure used for bit access

C

uint32_t C

bit: 29 Carry condition code flag

ISR

uint32_t ISR

bit: 0.. 8 Exception number

N

uint32_t N

bit: 31 Negative condition code flag

T

uint32_t T

bit: 24 Thumb bit (read 0)

V

uint32_t V

bit: 28 Overflow condition code flag

w

uint32_t w

Type used for word access

Z

uint32_t Z

bit: 30 Zero condition code flag

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该联合体的文档由以下文件生成:

• core_cm0plus.h