PsiFS: SWI Calls

PsiFS_AsyncControl

PsiFS_AsyncControl
(SWI &520C8)
Control an asynchronous remote operation

On entry:R0 =reason code
R1 =the previously allocated handle for this operation
Other registers depend on reason code

On exit:Registers preserved

Interrupts:Interrupt status is undefined
Fast interrupts are enabled

Processor mode:Processor is in SVC mode

Re-entrancy:SWI is not re-entrant

Use: This call controls a previously started asynchronous remote operation, depending on the reason code in R0. Valid reason codes are:
ValueMeaning
None

Related SWIs:PsiFS_AsyncStart, PsiFS_AsyncEnd, PsiFS_AsyncPoll

Related vectors:None

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