If-then and Gosub
I feel kind of stupid for having to ask this but, why can't I use a gosub
command in an "If, then" statement?
i.e., If x=10 then gosub blahblah
I have a series of "if then" statements in my main code loop and would like
to return to the next instruction. My work around is that I have labels for
every instruction. Gosub would certainly seem to be cleaner.
Thanks for any advise.
Jeff
command in an "If, then" statement?
i.e., If x=10 then gosub blahblah
I have a series of "if then" statements in my main code loop and would like
to return to the next instruction. My work around is that I have labels for
every instruction. Gosub would certainly seem to be cleaner.
Thanks for any advise.
Jeff
Comments
are a few ideas to work around it:
1) The obvious
IF x=10 THEN call_blah
blah_ret:
yadda yadda
call_blah:
gosub blah
goto blah_ret
2) The subtle
IF x<>10 THEN nocall_blah
gosub blah
nocall_blah:
Another related trick is to use a label called RET in front of some RETURN
statement in your program (doesn't really matter which RETURN). That way in
a subroutine you can write:
asub:
whatever
yadda yadda
IF x=33 THEN RET ' return if X=33
blah blah
ret:
RETURN
Al Williams
AWC
* Easy RS232 prototyping
http://www.al-williams.com/awce/rs1.htm
>
Original Message
> From: Jeff Mitchell [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=r__5h6YbHx7Q7zsTOkkvFJ72pHa_5-2k_iwRgvbhabbZPLYsSMaP7rsnWTZ2MpSlM0cPeCHo4ySwFHlb]EL-JEFE@P...[/url
> Sent: Wednesday, August 15, 2001 11:17 AM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] If-then and Gosub
>
>
> I feel kind of stupid for having to ask this but, why can't I use a gosub
> command in an "If, then" statement?
>
>
>
> i.e., If x=10 then gosub blahblah
>
> I have a series of "if then" statements in my main code loop and
> would like
> to return to the next instruction. My work around is that I have
> labels for
> every instruction. Gosub would certainly seem to be cleaner.
>
> Thanks for any advise.
>
> Jeff
>
>
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