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arm [2018/01/30 08:17] niziak |
arm [2022/07/06 19:51] (current) niziak |
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| + | ====== ARM ====== | ||
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| ====== Registers ====== | ====== Registers ====== | ||
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| * **r13** sp Stack pointer | * **r13** sp Stack pointer | ||
| * **r14** lr Link register Workspace | * **r14** lr Link register Workspace | ||
| + | |||
| + | ====== xPSR ====== | ||
| + | |||
| + | Special-purpose program status registers (xPSR) | ||
| + | * ''APSR'' Application PSR contains the condition code flags. Before entering an exception, the processor saves the condition code flags on the stack | ||
| + | * ''IPSR'' Interrupt PSR contains the Interrupt Service Routine (ISR) number of the current exception activation. | ||
| + | * ''EPSR'' Execution PSR contains the Thumb state bit (T-bit). | ||
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