[Coco] Program to detect a 6309 in a CoCo

[Bill Pierce]

Juan, the NitrOS9 program source for "cputype" is in the Nitros9 repo. You could use the technique in that small file to create a basic program to poke a small ML program into mem then execute it. A value could be stored at a specific address and read from basic once the control returns to basic and from that value, the cpu type can be determined. I used something similar in os9 to determine cpu type in my programs.


Bill Pierce
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-----Original Message-----
From: Juan Castro <jccyc1965 at gmail.com>
To: CoCo List <coco at maltedmedia.com>
Sent: Tue, Mar 25, 2014 9:15 pm
Subject: [Coco] Program to detect a 6309 in a CoCo


I remember seeing, in the list archives, a BASIC program that poked a small
machine language program to detect whether the CPU is a 6809 or a 6309. The
person who posted said it was a fix of a previous program that always said
6309 even if a 6809 was present.

And I can't find that message anymore! Yes I did try to google it, with
many many variants. Help?

Juan

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