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xPSR_Type Union Reference
[Status and Control Registers]
Union type to access the Special-Purpose Program Status Registers (xPSR). More...
#include <core_cm3.h>
Data Fields | |
| struct { | |
| uint32_t ISR:9 | |
| uint32_t _reserved0:15 | |
| 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 |
| uint32_t | w |
Detailed Description
Union type to access the Special-Purpose Program Status Registers (xPSR).
Definition at line 230 of file core_cm3.h.
Field Documentation
| uint32_t _reserved0 |
| uint32_t _reserved1 |
bit: 20..23 Reserved
Definition at line 240 of file core_cm3.h.
| struct { ... } b |
Structure used for bit access
| uint32_t C |
bit: 29 Carry condition code flag
Definition at line 246 of file core_cm3.h.
| uint32_t GE |
bit: 16..19 Greater than or Equal flags
Definition at line 239 of file core_cm3.h.
| uint32_t ISR |
bit: 0.. 8 Exception number
Definition at line 234 of file core_cm3.h.
| uint32_t IT |
bit: 25..26 saved IT state (read 0)
Definition at line 243 of file core_cm3.h.
| uint32_t N |
bit: 31 Negative condition code flag
Definition at line 248 of file core_cm3.h.
| uint32_t Q |
bit: 27 Saturation condition flag
Definition at line 244 of file core_cm3.h.
| uint32_t T |
bit: 24 Thumb bit (read 0)
Definition at line 242 of file core_cm3.h.
| uint32_t V |
bit: 28 Overflow condition code flag
Definition at line 245 of file core_cm3.h.
| uint32_t w |
Type used for word access
Definition at line 250 of file core_cm3.h.
| uint32_t Z |
bit: 30 Zero condition code flag
Definition at line 247 of file core_cm3.h.
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