Return from Interrupt
Return from interrupt. The stack is POPed and the top of the stack (TOS) is loaded into the program counter. This is a two-cycle instruction.
[the_ad id=”3059″]Syntax:
[ label ] RETFIE
Operation:
TOS → PC,
1 → GIE or PEIE,
Operands:
- None
Status Affected: GIE, PEIE
Example:
ISR ;interrupt service routine BCF INTCON,GIE BCF INTCON,TMR0IE ... ... BSF INTCON,GIE BSF INTCON,TMR0IE RETFIE ;exit interrupt service routine[the_ad id=”3059″]
