xPSR_Type Union Reference

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

#include <core_cm3.h>

Collaboration diagram for xPSR_Type:

Data Fields
struct {
uint32_t   ISR:9
uint32_t   _reserved0:15
uint32_t   T:1
uint32_t   IT:2
uint32_t   Q:1
uint32_t   V:1
uint32_t   C:1
uint32_t   Z:1
uint32_t   N:1
}	b
uint32_t	w
struct {
uint32_t   ISR:9
uint32_t   _reserved0:7
uint32_t   GE:4
uint32_t   _reserved1:4
uint32_t   T:1
uint32_t   IT:2
uint32_t   Q:1
uint32_t   V:1
uint32_t   C:1
uint32_t   Z:1
uint32_t   N:1
}	b

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Detailed Description

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

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Field Documentation

uint32_t xPSR_Type::ISR

bit: 0.. 8 Exception number

uint32_t xPSR_Type::_reserved0

bit: 9..23 Reserved

bit: 9..15 Reserved

uint32_t xPSR_Type::T

bit: 24 Thumb bit (read 0)

uint32_t xPSR_Type::IT

bit: 25..26 saved IT state (read 0)

uint32_t xPSR_Type::Q

bit: 27 Saturation condition flag

uint32_t xPSR_Type::V

bit: 28 Overflow condition code flag

uint32_t xPSR_Type::C

bit: 29 Carry condition code flag

uint32_t xPSR_Type::Z

bit: 30 Zero condition code flag

uint32_t xPSR_Type::N

bit: 31 Negative condition code flag

struct { ... } xPSR_Type::b

Structure used for bit access

uint32_t xPSR_Type::w

Type used for word access

uint32_t xPSR_Type::GE

bit: 16..19 Greater than or Equal flags

uint32_t xPSR_Type::_reserved1

bit: 20..23 Reserved

struct { ... } xPSR_Type::b

Structure used for bit access

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The documentation for this union was generated from the following files:

• include/arch/cm3/core_cm3.h
• include/arch/cm3/core_cm4.h