[Coco] OS-9 History

[Wayne Campbell]

You do not have to declare all variables in Basic09. By use allows type real (ex funds) or type string (ex comment$).

Also dim statements can appear anywhere in the program, but the variable cant be used prior to it or you will get wrong type errors.
Type mismatch I think.


Bill Pierce <ooogalapasooo at aol.com> wrote:

>
>Frank, if I remember right, you had to save the Basic program in Ascii, then use an OS9 text editor and save before loading into Basic09. There will be more errors than imaginable, but Basic09 mkarks them for easy editing.
>I remember moving several simple Basic files to Basic09 back in the 80s. The biggest thing is the Data structure. Basic allowed you to introduce variables at any time just by using them. In Basic09, you had to declare all variables. I would always go through the prorgam and fix all the variables. It eventually became a habit in Basic to declare my variables early as a habit because of my work in Basic09.
>
>Bill Pierce
>My Music from the Tandy/Radio Shack Color Computer 2 & 3
>https://sites.google.com/site/dabarnstudio/
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>
>
>
>-----Original Message-----
>From: Frank Swygert <farna at att.net>
>To: coco <coco at maltedmedia.com>
>Sent: Sun, Apr 28, 2013 7:51 am
>Subject: Re: [Coco] OS-9 History
>
>
>Date: Sun, 28 Apr 2013 02:39:51 -0400
>From: Aaron Wolfe<aawolfe at gmail.com>
>
>You may find this summary of OS9 print ads interesting or informative :
>
>http://aaronwolfe.com/coco/earlyos9/
>==================================================
>
>Very informative indeed, Aaron! That's a nice compilation of OS-9 ads and 
>information. I never knew that one could program in BASIC09 with a line number 
>structure just like DECB! If I'd known that I may have tried to port a couple 
>BASIC programs I'd written years a go to BASIC09. Would have been neat to run 
>them under OS-9, and not too hard to port using the same structure.
>
>
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