No you can't do that.

The bit number is actually part of the [BSF, BCF etc.] instruction an=
d
is created at compile time.

Clayton Mellina wrote:
>=20
>         Yes it is possible.  Use the "equ" directive like this:
>=20
> DSBIT   equ     "bit number goes here"
>=20
> There are many other directives that you can use with MPASM and it =
can get
> complicated.
> For more information download the MPASM User's Guide from the Micro=
chip
> website.
> Good luck!
>=20
> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Dave Gomez
> Sent: Sunday, September 08, 2002 7:45 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [PIC]: Variables
>=20
> Hi,
>     it=B9s the newbie again, I got a potentially silly question, bu=
t here
> goes.
>=20
>     I have a working program to read a temperature sensor, but I wo=
uld like
> to add more.  The issue is, I was thinking to save coding, and redu=
ndancy by
> using a variable to describe what portb bit I=B9m working with, so =
I could
> reuse the subroutines but setting a variable to the current bit to =
work
> with.  An example of this would be to make something like DSBIT a v=
ariable,
> and then swap the value of the bit to work with.  Is this possible?
>=20
>         BSF    TRISB,DSBIT    ;make RAx an input
>                                          ;where DSBIT can be variab=
le
>=20
> Thanks,
> Dave Gomez
>=20
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>=20
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--=20
Best regards

Tony

mICros
http://www.bubblesoftonline.com
mailto:sales@bubblesoftonline.com

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