Re: 6809 / 6702 puzzle

Date: Mon, 09 Apr 2012 20:10:48 +0200
Message-ID: <26393294.196501333995048203.JavaMail.www@wwinf3708>

I have now proved that my "residual errors" with the Waterloo languages appear to be the 6809 emulator I was using. I downloaded the one 
you pointed me at (and very quickly hacked it in to my SuperPET emulation) and everything appears to work fine (although I haven't put in 
the debugger etc. yet).

I have created a version of the 6809 validation program (that I found last night) for use on the SuperPET. It found some problems within 
the old emulator I was using which I have subsequently fixed - although the old emulator still appears to misbehave with the Waterloo 
software in mysterious ways.

I will PM you the source code for the validation test. If anyone else would like a copy; PM me and I will forward a copy to you.

I also tried this on the 'new' emulator I downloaded and it complains about the DAA instruction. On inspection, it would appear as though 
there are two ways of adding 0x60 to the result - which will give an incorrect answer. Try it on your emulator and see what you get.


> Message Received: Apr 08 2012, 11:26 PM
> From: "Rhialto" <>
> To:
> Cc: 
> Subject: Re: 6809 / 6702 puzzle
> On Sun 08 Apr 2012 at 21:57:52 +0200, wrote:
> >
> > Ignoring the bit about the blitter - this may be what we were looking for?
> Yes! Great! That one covers a lot of ground. 
> Cheers,
> -Olaf.
> -- 
> ___ Olaf 'Rhialto' Seibert  -- There's no point being grown-up if you 
> \X/ rhialto/at/    -- can't be childish sometimes. -The 4th Doctor
>        Message was sent through the cbm-hackers mailing list

       Message was sent through the cbm-hackers mailing list
Received on 2012-04-09 19:00:14

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