Re: C64 won't let me send my data during Talk

From: A. Fachat <>
Date: Tue, 11 Jun 2013 07:10:52 +0200
Message-ID: <>
Am 11. Juni 2013 05:39:46 schrieb Jim Brain
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> I'm curious, as I thought sd2iec firmware supported a number of platforms 
> already.  What was the issue that prevented re-using that code?

I have to correct in that iec is only supported on xs1541. IEEE488 is 
supported on two platforms, petSD and xs1541. But the wiggling of the pins 
is already separated out also for iec.

And that makes it clear that XD2031 started as IEEE488 solution, the iec 
bus was added later. Also my main goal was to use the PC as disk, not an sd 
card. That was added only later.

For the iec code we looked at Ingo's code, and even reused parts of it.

But 1) last time I looked there were many calls into IIRC led, sd card and 
other subsystems in the iec loop, which made it hard to reuse. Now our iec 
code is iec only, all other stuff is separated out and shared between iec 
and IEEE488.
2) it was under gpl2 only, while our code is gpl2 or later. You can 
actually see the remnants of Ingo's code in those files of XD2031 that are 
still gpl2 only.


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Received on 2013-06-11 06:00:07

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