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Service_ClaimFIQ
Programmer's Reference Manuals
» Part 16 – Service Calls
» Service_ClaimFIQ
Service_ClaimFIQ
(Service &0C)
| Entry | |
|---|---|
| R1 | 12 (&0C) |
| Exit | |
|---|---|
| All registers preserved to pass on, else | |
| R1 | 0 (claim service) |
Use
This service is issued by a module running as a foreground task (not IRQ), that wants to claim the FIQ hardware vector.
Notes
If you are the current owner, you must release the vector as soon as possible, and signal this by claiming this service.