In a message dated 9/13/01 5:07:27 AM Pacific Daylight Time,
joecolquitt@CLEAR.NET.NZ writes:


> Yes, if you care about the contents of W and Status they
> should be saved, but it wouldn't explain why the program
> seems to choke after the btfsc
>

Those were my thoughts exactly.


>     movfw   min
>     sublw   .60
>
> btfsc   STATUS,C
>     goto    hours
>     goto    day
>
> Tim, you should be aware that SUBLW actually performs
> Subtract W from Literal, not Subtract Literal from W as
> you'd expect (SUBWF is the logical Subtract W from F)
>
>

I remember there being a quirk in one of the subtraction instructions that
wasn't WYSIWYG. My own logic says that I'm loading my minutes counter into W
and subtracing THAT value from .60. Of course, if I go the decfsz route then
I wouldn't have to worry about this.

-Tim

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu