OS_CallEvery (changes)
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Programmer's OS Reference SWI Manuals Calls
» OS_CallEveryPart 15 – SWI Calls
» OS
» OS_CallEvery
OS_CallEvery
(SWI &3C)
| Entry | |
|---|---|
| R0 | Time to call in centi-seconds |
| R1 | Pointer to address to call |
| R2 | Value of R12 to be called with |
| Exit | |
|---|---|
| R0 | Preserved |
| R1 | Preserved |
| R2 | Preserved |
Use
The purpose of this call is to call a specified address every R0+1 centiseconds.
Notes
Sets a CallBack routine to be triggered every time a specified delay has elapsed.
For more details on how this call functions, please see OS_AddCallBack.
To cancel the settings of this call, use OS_RemoveTickerEvent. Note that it is not possible to remove a ticker event which is currently executing.
Because the minimum supported R0 value is 1, it is not possible to use this call to register a routine which is called on every tick. Software which wishes to do so should instead use OS_Claim to register directly with TickerV.
See also
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