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Diff. between RET & RETI

peter john


What is difference between RETI and

RET?

regards,
peter.

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  • 0 in reply to Ken Chew

    1) Is the EA bit and IE bits affected in any way, while in ISR?
    not unless you manipulate them
    2) If you exit an interrupt using RET, what happens?
    you are hosed
    How do you reenable those interrupts that was disabled temporarily?
    push the address you want to continue at on the stack and execute reti

    Erik

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  • 0 in reply to Ken Chew

    1) Is the EA bit and IE bits affected in any way, while in ISR?
    not unless you manipulate them
    2) If you exit an interrupt using RET, what happens?
    you are hosed
    How do you reenable those interrupts that was disabled temporarily?
    push the address you want to continue at on the stack and execute reti

    Erik

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