AMIGA Coldfire FAQ Version 1 - Non Technical

[Chathurawind]

The stack issue has a work around, one is to wait the for the 4e, one is my own soloution - more soon

Oh and I'm quiet cause I'm working on it - not because I've dropped the idea.

If needed parts of AROS can be used with the emulation layer running in software solving alot of problems but my work around could solve this.

I doubt anyone from our project said a ROM existed which offered 100% compatability, nothings 100% compatible in this world - knock us all you like, we will succeed in one way or another. You can't just dump something because someoen says you can't do it straight up - everything has a work around. Just more people trying to kill our project - if anyones serious in helping in this project who hasn't already e-mailed me then do so. Haynies point (which was damned obvious but overlooked) is valid - its great stuff and its all true.

Everything has a work around - yeah we could wait for the 4e - but how longs that going to take - Motorolas hardly reliable at all!

PJ Matthews

[Chathurawind]

What the hell??? READ THE V4 DOCS - IT HAS A SUPERVISOR STACK POINTER!!!

Idiot

[System]

I have read the FAQ and viewed all of the threads concerning the Coldfire that I could find, and now I am just plain synced! Folks, there is a phrase what is now unfolding and it is called "serious fun". I wish I could find a way to help with this project, besides purchasing one of the processors. By profession, I do component-level troubleshooting of electronic test equipment, like spectrum analyzers as an example. The closest thing I ever did to this was designing a memory add-on to an old Z-80 type processor. It  never got implemented, but in theory would have required very little software/firmware overhead. Like this project, it was "serious fun".  I say "bravo!" to PJ.

[Chathurawind]

What the hell??? READ THE V4 DOCS - IT HAS A SUPERVISOR STACK POINTER!!!

Idiot

Not quite what I was talking about.

Bring up the V4 user manual (MCF5407UM.pdf)... look at the supervisor registers part of the diagram on page 74.

Then bring up the V4e user manual (V4ECFUM.pdf) and look at the diagram on page 56.  

Notice anything different?  I'll give you a hint... OTHER_A7 Supervisor A7 Stack Pointer isn't on the 5407.  Now look at the supervisor programming model of any standard 68K part.
 

[Chathurawind]

That isn't presently an issue for us - I'll explain later.

PJ Matthews

[Chathurawind]

That isn't presently an issue for us - I'll explain later.

If you replace the Exec I don't think it's a problem... if you just install the emulation libs and jump into the current exec it becomes an issue.

[Chathurawind]

A Yahoo group has been started which we will continue to upload news items to, Pictures to and answer any questions you have.
Please join the group if your at all interested in this project.
http://groups.yahoo.com/group/Amigacoldfire/join">
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Thanks
Oliver Hannaford-Day
Web Master of The Commodore CDTV Information Center @ www.cdtv.org.uk
www.cdtv.org.uk/coldfire/