Dmitry Kiryashov wrote:
>
> Hi guys.
>
> I have a simple question for you.
>
> Sometimes it is required to read TMR1 on fly.
> In my case TMR1 prescaler=1 and I do it in
> such way:
>
>         MOVFW   TMR1H               ;it is applicable
>         MOVWF   SAV_TMR1H       ;for both 12xxx &
>         DECF    TMR1L,W              ;16xxx families
>         MOVWF   SAV_TMR1L       ;i guess...
>         DECF    SAV_TMR1L,F          ; or ,W
>
> Is there another techniques to read or syncro-
> nize with TMR1 (for instance prescaler value
> may be different)
>
> I'll very appreciate if someone will show me
> another way of doing that ;-)
>
> WBR Dmitry.

Here is another way to read on fly TMR1 with presc=4.

        MOVFW   TMR1H
        MOVWF   SAV_TMR1H
        MOVFW   TMR1L
        MOVWF   SAV_TMR1L

        MOVFW   TMR1L
        XORWF   SAV_TMR1L,W
        SKPNZ
        DECF    SAV_TMR1L,F

I still se no people that are interested to discuss this stuff ;-)

WBR Dmitry.