====== OSA : OS_EnterInt ======
<color blue>**OS_EnterInt ()**</color>\\ 
=== ===

{{osa:ref:attr_call_int.png|Only inside interrupt}}

For **PICC** and **PICC18** this service must be called in the beginning of an interrupt routine. This service saves the current FSR (FSR0 for PIC18) value.

=== Call allowed: ===
Only in interrupt


=== Parameters: ===
None

=== Returns: ===
nothing

=== Example: ===
<code cpp>
vid interrupt isr (void)
{
    static char a, b;  // some variables

    // After defining all variables wee need to call service:
    OS_EnterInt();
    /*...*/

    // Before exit from interrupt we need to call service
    OS_LeaveInt();
}
</code>

=== See also ===

----
  * [[en:osa:ref:services:alphabetical|Alphabetical]]
  * [[en:osa:ref:services:brieflist|All services]]
~~UP~~