Ahhh,

If anyone reads my last post, thanks but I solved the problem of Simu
input to pins inn MPLAB-SIM.

Next problem though has got me.

        decfsz  count_ts        ; decrease counter if not zero
;
        addlw   .0              ; put 0 in w reg
        xorlw   count_ts        ; is counter at 0
        btfsc   status,Z
        bcf     flag,0          ; yes so set flag,0 to 0
;

As you van see, I'm decreasing a counter on a program loop. When the
counter reaches 0, I want to set the flag,0 bit to 0. Thing is the xorlw
or the btfsc is not picking up the 0 in count_ts.

Earlier in the program a similar slice of code works to detect a value
greater than 0 in the file count_ts. So the problem has got to be xoring
the two 0's and then checking the Z status, hasn't it ?

If so, how do I check for the 0 state in the file.


TIA.
--
Philip Martin   ----------------------------------------------------------------
Royal Quays             If at first you don't succeed, try again. Then quit:
North Shields.          no use being a damn fool about it !
                                                        W.C. Fields
email philip@philmart.demon.co.uk