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CMSIS-CORE
Version 3.00
CMSIS-CORE support for Cortex-M processor-based devices
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Union type to access the Special-Purpose Program Status Registers (xPSR).
Data Fields | |
| struct { | |
| uint32_t ISR:9 | |
| bit: 0.. 8 Exception number | |
| uint32_t _reserved0:15 | |
| bit: 9..23 Reserved | |
| uint32_t T:1 | |
| bit: 24 Thumb bit (read 0) | |
| uint32_t IT:2 | |
| bit: 25..26 saved IT state (read 0) | |
| 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. | |
| uint32_t | w |
| Type used for word access. | |