Hi,

Following code may not work very well. I'm not sure if my post was made,
but setting/clearing bits directly on port is not reliable. Use a
temporary register and them mov the register to port.

> movwf   test            ; stick the bit to clear in test.
> decf    test            ; subtract one. Takes one less cycle than yours
>
> rlf     test,W          ; Double the value and stick back in W
> andlw   0xf             ; make sure to make result in the jump table.
> addwf   PCL,F           ; Jump to the appropriate instruction
> bcf     PORTB,0         ; Clear bit 0
> goto    done            ; and finished.
> bcf     PORTB,1         ; Clear bit 1
> goto    done            ; and finished.
> bcf     PORTB,2         ; Clear bit 2
> goto    done            ; and finished.
>
> And so forth. The value in W coming in will select with pair of bcf, goto
> instructions to execute.
>
> I use this technique in my NPCI interpreter. To further generalize it the
> address of the target is placed in the FSR register and the bcf instructions
> are executed on INDF. That way the code can be applied against any register
> file in the system instead of just PORTB.
>
> Hope this helps,
>
> BAJ