>
> I am trying to have a variable be decremented and that result be used as
> the BTFSC test bit
>
> For example
>
> movlw    H'07'
> movwf    TestBit
> decf        TestBit, 1
> btfsc       PORTB, TestBit
>
> Is this possible,

Nope.

> I tried using indirect referencing like
>
> movlw    TestBit
> movwf    FSR
> btfsc       PORTB, INDF
>
> but that will not work. Any suggestions.

There was a discussion of this a while ago on the list. The bit number
for a btfsc instruction is fixed. Two possible ways of handling it.

1. Use a jump table to translate the bit number into a bit mask. Then use
the mask to test the required bit (using and)  then btfsc off the zero flag.

2. Build a jump table with 8 btfsc's and their associated no jumps in it.

But you cannot perform the task they way you like unfortunately.

BAJ