From: Daniel Kahlin (tlr_at_stacken.kth.se)
Date: 2005-11-03 16:18:41
The one in the Data Becker book "64 intern" is great if you can get it.
Comments in German though. That's how I learnt German by the way. :)
/Daniel
On Thu, 3 Nov 2005, Baltissen, GJPAA (Ruud) wrote:
> Hallo allemaal,
>
>
> I want to create a Kernal of my own and I want to start with a base Kernal
> that is documented as best as possible. But the only one I found is the one
> Marko created in 1994. And that is not so well documented as I hoped for (no
> offence meant).
>
> So, is there a well documented listing of the C64 in e-text available
> anywhere?
>
> Thanks for any help!
>
>
> The above is a part of my new 6510 -> 65816 project which on itself is not
> going so good. In my very first designs I used buffers to seperate the 65816
> from the rest of the C64. Having a bright idea three weeks ago, I thought I
> didn't need them anymore so I removed them from the design. Only to find out
> that that was a big error. As you know the 6510 is tri-stated the moment
> PHI2 = (L). But that is the moment the 65816 outputs the addresslines
> A16..23 at its data bus. And being tri-stated, there is no way to output
> something...... So a lot of work is simply waisted :( OK, I started all over
> again and I still have some hope to finish the design befor november the
> 25th.
>
> One part of the design is to replace the Kernal, Basic, LoROM and HiROM with
> SRAM. In this case the original DRAM-under-ROM idea is stil available. My
> new Kernal provides you in the first place with a menu where you can choose
> the Kernal you want to use, loads it from disk or another source, and there
> you go. This doesn't sound that great, a big EPROM with some switches can do
> the same. Its power can be found in the fact that it is very usefull for
> people who want to develop a Kernal of their own: no more EPROM burning
> needed!
> I am also working on a '6510-only' version. The 65816 version used some
> memory outside the first 64 KB to write (and to test-read) this SRAM. For
> the 6510 version I use a trick.
>
>
> --
> ___
> / __|__
> / / |_/ Groetjes, Ruud
> \ \__|_\
> \___| URL: Ruud.C64.org
>
>
>
>
>
>
>
>
>
>
>
>
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